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Posted to commits@streampipes.apache.org by bo...@apache.org on 2022/12/12 20:43:56 UTC

[streampipes] branch dev updated: Some more checkstyle enablements (#847)

This is an automated email from the ASF dual-hosted git repository.

bossenti pushed a commit to branch dev
in repository https://gitbox.apache.org/repos/asf/streampipes.git


The following commit(s) were added to refs/heads/dev by this push:
     new cf33668a0 Some more checkstyle enablements (#847)
cf33668a0 is described below

commit cf33668a016921dc831ea90476fa07158dc91b7e
Author: Tim <50...@users.noreply.github.com>
AuthorDate: Mon Dec 12 21:43:50 2022 +0100

    Some more checkstyle enablements (#847)
    
    * add checkstyle to streampipes-logging
    
    * add checkstyle to streampipes-model-shared
    
    * simplify checkstyle configuration
    
    * add checkstyle to streampipes-model-client
    
    * add checkstyle to streampipes-model
    
    * fix checkstyle errors
---
 streampipes-logging/pom.xml                        |  11 +-
 .../apache/streampipes/logging/LoggerFactory.java  |   6 +-
 .../org/apache/streampipes/logging/api/Logger.java |  10 +-
 .../logging/impl/EventStatisticLogger.java         |   8 +-
 .../apache/streampipes/logging/impl/PeLogger.java  |  52 ++--
 .../streampipes/logging/model/LogRequest.java      |  42 ++--
 streampipes-model-client/pom.xml                   | 158 +++++++------
 .../apache/streampipes/model/client/Category.java  |  65 ++---
 .../model/client/RunningVisualization.java         |   6 +-
 .../model/client/connection/Connection.java        |  49 ++--
 .../client/deployment/DeploymentConfiguration.java | 214 ++++++++---------
 .../model/client/deployment/DeploymentType.java    |   2 +-
 .../model/client/deployment/ElementType.java       |   2 +-
 .../model/client/deployment/OutputType.java        |   2 +-
 .../model/client/deployment/RuntimeType.java       |   2 +-
 .../client/endpoint/ExtensionsServiceEndpoint.java |  52 ++--
 .../endpoint/ExtensionsServiceEndpointItem.java    | 172 +++++++-------
 .../exception/InvalidConnectionException.java      |  26 +-
 .../client/matching/MatchingResultFactory.java     |  16 +-
 .../client/matching/MatchingResultMessage.java     | 166 ++++++-------
 .../model/client/matching/MatchingResultType.java  |  57 ++---
 .../model/client/monitoring/JobReport.java         |  65 +++--
 .../model/client/monitoring/TaskReport.java        |  66 +++---
 .../monitoring/pipeline/AbstractBurrowInfo.java    |  40 ++--
 .../pipeline/BurrowConsumerGroupStatus.java        | 116 ++++-----
 .../pipeline/BurrowConsumerGroupStatusInfo.java    |  24 +-
 .../monitoring/pipeline/BurrowConsumerInfo.java    |  34 +--
 .../monitoring/pipeline/BurrowTopicInfo.java       |  26 +-
 .../streampipes/model/client/ontology/Concept.java |  51 ++--
 .../streampipes/model/client/ontology/Context.java |  80 +++----
 .../model/client/ontology/ElementHeader.java       | 101 ++++----
 .../model/client/ontology/ElementType.java         |   2 +-
 .../model/client/ontology/EnumeratedRange.java     |  38 +--
 .../model/client/ontology/EnumeratedValue.java     |  51 ++--
 .../model/client/ontology/Instance.java            |  47 ++--
 .../model/client/ontology/Namespace.java           |  50 ++--
 .../model/client/ontology/NodeType.java            |   2 +-
 .../model/client/ontology/OntologyElement.java     |  76 +++---
 .../model/client/ontology/OntologyNode.java        | 177 +++++++-------
 .../model/client/ontology/OntologyQuery.java       |  58 ++---
 .../model/client/ontology/OntologyQueryItem.java   |  49 ++--
 .../client/ontology/OntologyQueryResponse.java     |  71 +++---
 .../model/client/ontology/PrimitiveRange.java      |  60 +++--
 .../model/client/ontology/Property.java            | 123 +++++-----
 .../client/ontology/QuantitativeValueRange.java    |  74 +++---
 .../streampipes/model/client/ontology/Range.java   |  71 +++---
 .../model/client/ontology/RangeType.java           |   2 +-
 .../model/client/ontology/RdfFormat.java           |   2 +-
 .../model/client/ontology/Resource.java            |  69 +++---
 .../model/client/ontology/Statement.java           |  57 ++---
 .../model/client/setup/InitialSettings.java        | 116 ++++-----
 .../model/client/user/ChangePasswordRequest.java   |   8 +-
 .../streampipes/model/client/user/Element.java     |  55 +++--
 .../streampipes/model/client/user/Group.java       |  13 +-
 .../client/user/JwtAuthenticationResponse.java     |  26 +-
 .../model/client/user/LoginRequest.java            |  57 ++---
 .../model/client/user/PasswordRecoveryToken.java   |  18 +-
 .../streampipes/model/client/user/Permission.java  |  13 +-
 .../model/client/user/PermissionBuilder.java       |  20 +-
 .../model/client/user/PermissionEntry.java         |   8 +-
 .../streampipes/model/client/user/Principal.java   | 231 +++++++++---------
 .../model/client/user/RegistrationData.java        |  84 +++----
 .../apache/streampipes/model/client/user/Role.java |  76 +++---
 .../model/client/user/ServiceAccount.java          |  12 +-
 .../streampipes/model/client/user/Token.java       |  53 ++---
 .../streampipes/model/client/user/UserAccount.java | 263 ++++++++++-----------
 .../model/client/user/UserActivationToken.java     |  16 +-
 streampipes-model-shared/pom.xml                   |   9 +-
 streampipes-model/pom.xml                          |   7 +-
 .../org/apache/streampipes/model/AdapterType.java  |  17 +-
 .../apache/streampipes/model/ApplicationLink.java  | 105 ++++----
 .../streampipes/model/DataProcessorType.java       |  79 ++++---
 .../org/apache/streampipes/model/DataSinkType.java |  13 +-
 .../streampipes/model/NotificationCount.java       |  26 +-
 .../org/apache/streampipes/model/Response.java     | 155 ++++++------
 .../org/apache/streampipes/model/SpDataSet.java    |  20 +-
 .../org/apache/streampipes/model/SpDataStream.java |  30 +--
 .../streampipes/model/SpDataStreamContainer.java   |   4 +-
 .../streampipes/model/StreamPipesErrorMessage.java |  23 +-
 .../java/org/apache/streampipes/model/Tuple2.java  |  30 ++-
 .../apache/streampipes/model/VirtualSensor.java    |  52 ++--
 .../apache/streampipes/model/assets/AssetLink.java |   8 +-
 .../streampipes/model/assets/AssetLinkType.java    |   3 +-
 .../streampipes/model/assets/SpAssetModel.java     |   5 +-
 .../model/base/AbstractStreamPipesEntity.java      |  49 ++--
 .../model/base/InvocableStreamPipesEntity.java     |   4 +-
 .../model/base/NamedStreamPipesEntity.java         |  30 +--
 .../model/canvas/PipelineCanvasMetadata.java       |   3 +-
 .../model/connect/adapter/AdapterDescription.java  |  16 +-
 .../connect/adapter/AdapterSetDescription.java     |  45 ++--
 .../connect/adapter/AdapterStreamDescription.java  |  64 ++---
 .../connect/adapter/GenericAdapterDescription.java |   8 +-
 .../adapter/GenericAdapterSetDescription.java      |  68 +++---
 .../adapter/GenericAdapterStreamDescription.java   |  20 +-
 .../adapter/SpecificAdapterSetDescription.java     |  10 +-
 .../model/connect/grounding/FormatDescription.java | 104 ++++----
 .../connect/grounding/ProtocolDescription.java     |  88 +++----
 .../connect/grounding/ProtocolSetDescription.java  |  22 +-
 .../grounding/ProtocolStreamDescription.java       |  22 +-
 .../model/connect/guess/FieldStatusInfo.java       |   6 +-
 .../model/connect/guess/GuessSchema.java           |  83 +++----
 .../connect/rules/DebugSinkRuleDescription.java    |   6 +-
 .../rules/TransformationRuleDescription.java       |  48 ++--
 .../rules/schema/DeleteRuleDescription.java        |  36 +--
 .../rules/schema/RenameRuleDescription.java        |  54 ++---
 .../SchemaTransformationRuleDescription.java       |  12 +-
 .../EventRateTransformationRuleDescription.java    |  44 ++--
 ...oveDuplicatesTransformationRuleDescription.java |  28 +--
 .../StreamTransformationRuleDescription.java       |  19 +-
 .../rules/value/AddTimestampRuleDescription.java   |  28 +--
 .../AddValueTransformationRuleDescription.java     |  44 ++--
 ...rrectionValueTransformationRuleDescription.java |  74 +++---
 .../TimestampTranfsformationRuleDescription.java   |  90 +++----
 .../value/TimestampTransformationRuleMode.java     |   4 +-
 .../rules/value/UnitTransformRuleDescription.java  |  72 +++---
 .../value/ValueTransformationRuleDescription.java  |  25 +-
 .../model/connect/unit/UnitDescription.java        |  40 ++--
 .../model/dashboard/DashboardEntity.java           |   7 +-
 .../streampipes/model/dashboard/DashboardItem.java |   2 +-
 .../model/dashboard/DashboardModel.java            |   3 +-
 .../model/dashboard/DashboardWidgetModel.java      |   2 +-
 .../model/datalake/DataExplorerWidgetModel.java    |  10 +-
 .../model/datalake/DataLakeConfiguration.java      |  83 +++----
 .../model/datalake/DataLakeMeasure.java            |  22 +-
 .../model/datalake/DataLakeRetentionPolicy.java    |  89 ++++---
 .../streampipes/model/datalake/DataSeries.java     |  64 ++---
 .../model/datalake/LabelDefinition.java            |  36 +--
 .../streampipes/model/datalake/PageResult.java     |  39 +--
 .../streampipes/model/datalake/SpQueryResult.java  | 126 +++++-----
 .../streampipes/model/datalake/SpQueryStatus.java  |   4 +-
 .../streampipes/model/file/FileMetadata.java       |   9 +-
 .../model/function/FunctionDefinition.java         |   8 +-
 .../streampipes/model/function/FunctionId.java     |  23 +-
 .../model/graph/DataProcessorDescription.java      |   4 +-
 .../model/graph/DataProcessorInvocation.java       |   5 +-
 .../model/graph/DataSinkDescription.java           |  66 +++---
 .../model/graph/DataSinkInvocation.java            |   2 +-
 .../model/graph/DataSourceDescription.java         |  10 +-
 .../model/graph/PipelineElementContainer.java      |   3 +-
 .../model/grounding/EventGrounding.java            | 103 ++++----
 .../model/grounding/JmsTransportProtocol.java      |  63 +++--
 .../model/grounding/KafkaTransportProtocol.java    |  11 +-
 .../model/grounding/MqttTransportProtocol.java     |  26 +-
 .../model/grounding/NatsTransportProtocol.java     |  25 +-
 .../model/grounding/TopicDefinition.java           |   7 +-
 .../model/grounding/TransportFormat.java           |  59 +++--
 .../model/grounding/TransportProtocol.java         |  80 +++----
 .../streampipes/model/labeling/Category.java       |  95 ++++----
 .../apache/streampipes/model/labeling/Label.java   | 109 +++++----
 .../org/apache/streampipes/model/mail/SpEmail.java |  16 +-
 .../model/message/DataSetModificationMessage.java  |   2 +-
 .../model/message/EdgeValidationStatus.java        |   2 +-
 .../streampipes/model/message/ErrorMessage.java    |  31 +--
 .../apache/streampipes/model/message/Message.java  | 129 +++++-----
 .../model/message/NotificationType.java            | 143 ++++++-----
 .../streampipes/model/message/Notifications.java   |  70 +++---
 .../model/message/PipelineEdgeValidation.java      |  22 +-
 .../model/message/PipelineModificationMessage.java | 128 +++++-----
 .../model/message/PipelineStatusMessage.java       |  88 +++----
 .../model/message/PipelineStatusMessageType.java   |  46 ++--
 .../model/message/SetupStatusMessage.java          |  19 +-
 .../streampipes/model/message/SuccessMessage.java  |  30 +--
 .../monitoring/ElementStatusInfoSettings.java      |   2 +-
 .../model/monitoring/MessageCounter.java           |  16 +-
 .../streampipes/model/monitoring/SpLogEntry.java   |  20 +-
 .../output/CustomTransformOutputStrategy.java      |   3 +-
 .../streampipes/model/output/OutputStrategy.java   |  19 +-
 .../model/output/TransformOperation.java           |   2 +-
 .../streampipes/model/pipeline/Pipeline.java       |   5 +-
 .../model/pipeline/PipelineCategory.java           | 107 ++++-----
 .../pipeline/PipelineElementRecommendation.java    | 111 +++++----
 .../PipelineElementRecommendationMessage.java      |  84 ++++---
 .../model/pipeline/PipelineElementStatus.java      |  75 +++---
 .../pipeline/PipelineElementValidationInfo.java    |  64 ++---
 .../model/pipeline/PipelineOperationStatus.java    | 132 +++++------
 .../apache/streampipes/model/quality/Accuracy.java |  49 ++--
 .../quality/EventPropertyQualityDefinition.java    |  29 +--
 .../quality/EventPropertyQualityRequirement.java   | 106 +++++----
 .../quality/EventStreamQualityDefinition.java      |  18 +-
 .../quality/EventStreamQualityRequirement.java     |  64 ++---
 .../streampipes/model/quality/Frequency.java       |  59 +++--
 .../apache/streampipes/model/quality/Latency.java  |  80 +++----
 .../model/quality/MeasurementCapability.java       |  54 ++---
 .../model/quality/MeasurementObject.java           |  54 ++---
 .../model/quality/MeasurementProperty.java         |  23 +-
 .../model/quality/MeasurementRange.java            |  74 +++---
 .../streampipes/model/quality/Precision.java       |  48 ++--
 .../streampipes/model/quality/Resolution.java      |  48 ++--
 .../apache/streampipes/model/runtime/Event.java    |  13 +-
 .../streampipes/model/runtime/EventConverter.java  |   7 +-
 .../streampipes/model/runtime/EventFactory.java    |  35 +--
 .../streampipes/model/runtime/SchemaInfo.java      |   8 +-
 .../model/runtime/field/AbstractField.java         |  12 +-
 .../model/runtime/field/FieldParser.java           |   4 +-
 .../streampipes/model/runtime/field/ListField.java |  16 +-
 .../streampipes/model/schema/Enumeration.java      | 102 ++++----
 .../streampipes/model/schema/EventProperty.java    |  77 +++---
 .../model/schema/EventPropertyNested.java          |  67 +++---
 .../model/schema/EventPropertyPrimitive.java       |   5 +-
 .../streampipes/model/schema/EventSchema.java      |  13 +-
 .../streampipes/model/schema/PropertyScope.java    |   7 +-
 .../model/schema/QuantitativeValue.java            | 100 ++++----
 .../model/schema/ValueSpecification.java           |  25 +-
 .../model/staticproperty/AnyStaticProperty.java    |   2 +-
 .../staticproperty/CollectionStaticProperty.java   |   8 +-
 .../model/staticproperty/DomainStaticProperty.java |   6 +-
 .../staticproperty/FreeTextStaticProperty.java     |  16 +-
 .../model/staticproperty/MappingProperty.java      |  11 +-
 .../model/staticproperty/MappingPropertyNary.java  |   2 +-
 .../model/staticproperty/MappingPropertyUnary.java |   2 +-
 .../staticproperty/MatchingStaticProperty.java     |  80 +++----
 .../model/staticproperty/OneOfStaticProperty.java  |   2 +-
 .../streampipes/model/staticproperty/Option.java   | 125 +++++-----
 .../staticproperty/PropertyValueSpecification.java | 104 ++++----
 .../staticproperty/RemoteOneOfStaticProperty.java  |   7 +-
 .../RuntimeResolvableAnyStaticProperty.java        |   3 +-
 .../RuntimeResolvableOneOfStaticProperty.java      |   6 +-
 .../model/staticproperty/SecretStaticProperty.java |   7 +-
 .../staticproperty/SelectionStaticProperty.java    |  22 +-
 .../model/staticproperty/StaticProperty.java       |  52 ++--
 .../staticproperty/StaticPropertyAlternative.java  |   2 +-
 .../staticproperty/StaticPropertyAlternatives.java |   8 +-
 .../model/staticproperty/StaticPropertyGroup.java  |  19 +-
 .../model/staticproperty/StaticPropertyType.java   |  38 +--
 .../model/staticproperty/TreeInputNode.java        |   3 +-
 .../model/template/PipelineElementTemplate.java    |   8 +-
 .../template/PipelineElementTemplateConfig.java    |   8 +-
 .../template/PipelineTemplateDescription.java      |   3 +-
 .../PipelineTemplateDescriptionContainer.java      |   2 +-
 .../model/template/PipelineTemplateInvocation.java |   4 +-
 .../org/apache/streampipes/model/util/Cloner.java  |  92 +++++--
 .../streampipes/model/util/ElementIdGenerator.java |   6 +-
 .../apache/streampipes/model/util/EventUtils.java  |   2 +-
 .../apache/streampipes/model/util/ModelUtils.java  |  75 +++---
 .../streampipes/model/util/PropertyUtils.java      |   4 +-
 .../apache/streampipes/model/util/SchemaUtils.java |  15 +-
 .../connect/adapter/AdapterDescriptionTest.java    |  65 ++---
 .../model/datalake/DataLakeMeasureTest.java        |  25 +-
 .../model/runtime/RuntimeTestUtils.java            |   8 +-
 .../streampipes/model/runtime/TestEvent.java       |  27 ++-
 .../model/runtime/TestEventConverter.java          |   6 +-
 .../model/runtime/TestEventFactory.java            |   4 +-
 .../model/runtime/TestFieldAddition.java           |   6 +-
 .../streampipes/model/runtime/TestListField.java   |   6 +-
 .../model/runtime/TestPropertyRenaming.java        |   8 +-
 .../streampipes/model/runtime/TestSubset.java      |   6 +-
 .../manager/data/PipelineGraphBuilder.java         |   4 +-
 .../manager/matching/ConnectionValidator.java      |   2 +-
 .../matching/PipelineModificationGenerator.java    |  10 +-
 .../matching/PipelineVerificationHandlerV2.java    |   2 +-
 .../pipeline/AbstractPipelineValidationStep.java   |   9 +-
 .../matching/v2/pipeline/ApplyGroundingStep.java   |   8 +-
 .../matching/v2/pipeline/ComputeOutputStep.java    |   6 +-
 .../matching/v2/pipeline/SchemaValidationStep.java |   2 +-
 .../manager/preview/ActivePipelinePreviews.java    |   2 +-
 .../manager/preview/PipelinePreview.java           |   2 +-
 .../manager/recommender/AllElementsProvider.java   |   2 +-
 .../manager/template/PipelineGenerator.java        |  10 +-
 .../PipelineTemplateInvocationGenerator.java       |   4 +-
 .../PipelineTemplateInvocationHandler.java         |   4 +-
 .../apache/streampipes/manager/util/TreeUtils.java |   4 +-
 .../streampipes/manager/matching/v2/TestUtils.java |   8 +-
 .../impl/AdapterDescriptionStorageImpl.java        |   2 +-
 .../couchdb/impl/AdapterInstanceStorageImpl.java   |   2 +-
 .../storage/couchdb/impl/CategoryStorageImpl.java  |   2 +-
 .../couchdb/impl/DashboardWidgetStorageImpl.java   |   2 +-
 .../impl/DataExplorerWidgetStorageImpl.java        |   2 +-
 .../storage/couchdb/impl/DataLakeStorageImpl.java  |   2 +-
 .../storage/couchdb/impl/LabelStorageImpl.java     |   2 +-
 .../couchdb/impl/MonitoringDataStorageImpl.java    |   2 +-
 .../couchdb/impl/PipelineCategoryStorageImpl.java  |   2 +-
 271 files changed, 5333 insertions(+), 5148 deletions(-)

diff --git a/streampipes-logging/pom.xml b/streampipes-logging/pom.xml
index c66f61241..584ac3a78 100644
--- a/streampipes-logging/pom.xml
+++ b/streampipes-logging/pom.xml
@@ -17,7 +17,8 @@
   ~
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>streampipes-parent</artifactId>
         <groupId>org.apache.streampipes</groupId>
@@ -35,4 +36,12 @@
             <artifactId>slf4j-api</artifactId>
         </dependency>
     </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
\ No newline at end of file
diff --git a/streampipes-logging/src/main/java/org/apache/streampipes/logging/LoggerFactory.java b/streampipes-logging/src/main/java/org/apache/streampipes/logging/LoggerFactory.java
index 4fdcb9656..883ac39aa 100644
--- a/streampipes-logging/src/main/java/org/apache/streampipes/logging/LoggerFactory.java
+++ b/streampipes-logging/src/main/java/org/apache/streampipes/logging/LoggerFactory.java
@@ -24,8 +24,8 @@ import org.apache.streampipes.logging.impl.PeLogger;
 public class LoggerFactory {
 
   //  public static Logger getPeLogger(Class clazz, String correspondingPipeline, String peUri, PeConfig peConfig) {
-    public static Logger getPeLogger(Class clazz, String correspondingPipeline, String peUri) {
+  public static Logger getPeLogger(Class clazz, String correspondingPipeline, String peUri) {
     //    return new PeLogger(clazz, correspondingPipeline, peUri, peConfig);
-        return new PeLogger(clazz, correspondingPipeline, peUri);
-    }
+    return new PeLogger(clazz, correspondingPipeline, peUri);
+  }
 }
diff --git a/streampipes-logging/src/main/java/org/apache/streampipes/logging/api/Logger.java b/streampipes-logging/src/main/java/org/apache/streampipes/logging/api/Logger.java
index 76defc3e9..c1ee5288b 100644
--- a/streampipes-logging/src/main/java/org/apache/streampipes/logging/api/Logger.java
+++ b/streampipes-logging/src/main/java/org/apache/streampipes/logging/api/Logger.java
@@ -22,13 +22,13 @@ import java.io.Serializable;
 
 public interface Logger extends Serializable {
 
-    void info(String s);
+  void info(String s);
 
-    void trace(String s);
+  void trace(String s);
 
-    void debug(String s);
+  void debug(String s);
 
-    void error(String s);
+  void error(String s);
 
-    void warn(String s);
+  void warn(String s);
 }
diff --git a/streampipes-logging/src/main/java/org/apache/streampipes/logging/impl/EventStatisticLogger.java b/streampipes-logging/src/main/java/org/apache/streampipes/logging/impl/EventStatisticLogger.java
index 050c558c0..559ce892a 100644
--- a/streampipes-logging/src/main/java/org/apache/streampipes/logging/impl/EventStatisticLogger.java
+++ b/streampipes-logging/src/main/java/org/apache/streampipes/logging/impl/EventStatisticLogger.java
@@ -23,10 +23,10 @@ import java.io.Serializable;
 public class EventStatisticLogger implements Serializable {
 
 
-    // private String prefix;
+  // private String prefix;
 
-   // public static void log(org.apache.streampipes.model.base.InvocableStreamPipesEntity graph) {
-    public static void log(String name, String correspondingPipeline, String source) {
+  // public static void log(org.apache.streampipes.model.base.InvocableStreamPipesEntity graph) {
+  public static void log(String name, String correspondingPipeline, String source) {
     // TODO: Uncomment when "Event statistic" should be used
         /*    String prefix =  "SYSTEMLOG EVENT STATISTIC" + " - "
                 // + "serviceName: " + peConfig.getName() + " - "
@@ -36,6 +36,6 @@ public class EventStatisticLogger implements Serializable {
         org.slf4j.Logger logger = LoggerFactory.getLogger(EventStatisticLogger.class);
         logger.info(prefix + 1);
         */
-    }
+  }
 
 }
diff --git a/streampipes-logging/src/main/java/org/apache/streampipes/logging/impl/PeLogger.java b/streampipes-logging/src/main/java/org/apache/streampipes/logging/impl/PeLogger.java
index ce68d44a5..392cc8edd 100644
--- a/streampipes-logging/src/main/java/org/apache/streampipes/logging/impl/PeLogger.java
+++ b/streampipes-logging/src/main/java/org/apache/streampipes/logging/impl/PeLogger.java
@@ -19,44 +19,44 @@
 package org.apache.streampipes.logging.impl;
 
 import org.apache.streampipes.logging.api.Logger;
+
 import org.slf4j.LoggerFactory;
 
 public class PeLogger implements Logger {
 
-    private org.slf4j.Logger LOG;
-
-    private String prefix;
+  private org.slf4j.Logger logger;
 
+  private String prefix;
 
 
-    //public PeLogger(Class clazz, String correspondingPipeline, String peUri, PeConfig peConfig){
-    public PeLogger(Class clazz, String correspondingPipeline, String peUri){
-        this.prefix =  "USERLOG" + " - "
-                      // + "serviceName: " + peConfig.getName() + " - "
-                       + "correspondingPipeline: " + correspondingPipeline + " - "
-                       + "peURI: " + peUri + " - ";
+  //public PeLogger(Class clazz, String correspondingPipeline, String peUri, PeConfig peConfig){
+  public PeLogger(Class clazz, String correspondingPipeline, String peUri) {
+    this.prefix = "USERLOG" + " - "
+        // + "serviceName: " + peConfig.getName() + " - "
+        + "correspondingPipeline: " + correspondingPipeline + " - "
+        + "peURI: " + peUri + " - ";
 
-        LOG = LoggerFactory.getLogger(clazz);
-    }
+    logger = LoggerFactory.getLogger(clazz);
+  }
 
-    public void info(String s) {
-        LOG.info(prefix + s);
-    }
+  public void info(String s) {
+    logger.info(prefix + s);
+  }
 
-    public void trace(String s) {
-        LOG.trace(prefix + s);
-    }
+  public void trace(String s) {
+    logger.trace(prefix + s);
+  }
 
-    public void debug(String s) {
-        LOG.debug(prefix + s);
-    }
+  public void debug(String s) {
+    logger.debug(prefix + s);
+  }
 
-    public void error(String s) {
-        LOG.error(prefix + s);
-    }
+  public void error(String s) {
+    logger.error(prefix + s);
+  }
 
-    public void warn(String s) {
-        LOG.warn(prefix + s);
-    }
+  public void warn(String s) {
+    logger.warn(prefix + s);
+  }
 
 }
diff --git a/streampipes-logging/src/main/java/org/apache/streampipes/logging/model/LogRequest.java b/streampipes-logging/src/main/java/org/apache/streampipes/logging/model/LogRequest.java
index 79d727052..66fd5803e 100644
--- a/streampipes-logging/src/main/java/org/apache/streampipes/logging/model/LogRequest.java
+++ b/streampipes-logging/src/main/java/org/apache/streampipes/logging/model/LogRequest.java
@@ -20,31 +20,31 @@ package org.apache.streampipes.logging.model;
 
 public class LogRequest {
 
-    private String sourceID;
-    private String dateFrom;
-    private String dateTo;
+  private String sourceID;
+  private String dateFrom;
+  private String dateTo;
 
-    public String getSourceID() {
-        return sourceID;
-    }
+  public String getSourceID() {
+    return sourceID;
+  }
 
-    public void setSourceID(String source) {
-        this.sourceID = source;
-    }
+  public void setSourceID(String source) {
+    this.sourceID = source;
+  }
 
-    public String getDateFrom() {
-        return dateFrom;
-    }
+  public String getDateFrom() {
+    return dateFrom;
+  }
 
-    public void setDateFrom(String dateFrom) {
-        this.dateFrom = dateFrom;
-    }
+  public void setDateFrom(String dateFrom) {
+    this.dateFrom = dateFrom;
+  }
 
-    public String getDateTo() {
-        return dateTo;
-    }
+  public String getDateTo() {
+    return dateTo;
+  }
 
-    public void setDateTo(String dateTo) {
-        this.dateTo = dateTo;
-    }
+  public void setDateTo(String dateTo) {
+    this.dateTo = dateTo;
+  }
 }
diff --git a/streampipes-model-client/pom.xml b/streampipes-model-client/pom.xml
index ec96d7f86..b10045b82 100644
--- a/streampipes-model-client/pom.xml
+++ b/streampipes-model-client/pom.xml
@@ -16,84 +16,90 @@
   ~
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>org.apache.streampipes</groupId>
-		<artifactId>streampipes-parent</artifactId>
-		<version>0.91.0-SNAPSHOT</version>
-	</parent>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.streampipes</groupId>
+        <artifactId>streampipes-parent</artifactId>
+        <version>0.91.0-SNAPSHOT</version>
+    </parent>
 
-	<artifactId>streampipes-model-client</artifactId>
-	<packaging>jar</packaging>
+    <artifactId>streampipes-model-client</artifactId>
+    <packaging>jar</packaging>
 
-	<dependencies>
-		<!-- StreamPipes dependencies -->
-		<dependency>
-			<groupId>org.apache.streampipes</groupId>
-			<artifactId>streampipes-commons</artifactId>
-			<version>0.91.0-SNAPSHOT</version>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.streampipes</groupId>
-			<artifactId>streampipes-model-shared</artifactId>
-			<version>0.91.0-SNAPSHOT</version>
-		</dependency>
+    <dependencies>
+        <!-- StreamPipes dependencies -->
+        <dependency>
+            <groupId>org.apache.streampipes</groupId>
+            <artifactId>streampipes-commons</artifactId>
+            <version>0.91.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.streampipes</groupId>
+            <artifactId>streampipes-model-shared</artifactId>
+            <version>0.91.0-SNAPSHOT</version>
+        </dependency>
 
-		<!-- External dependencies -->
-		<dependency>
-			<groupId>com.fasterxml.jackson.core</groupId>
-			<artifactId>jackson-annotations</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>com.google.code.gson</groupId>
-			<artifactId>gson</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.commons</groupId>
-			<artifactId>commons-lang3</artifactId>
-		</dependency>
-	</dependencies>
+        <!-- External dependencies -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-annotations</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>cz.habarta.typescript-generator</groupId>
-				<artifactId>typescript-generator-maven-plugin</artifactId>
-				<version>2.27.744</version>
-				<executions>
-					<execution>
-						<id>generate</id>
-						<goals>
-							<goal>generate</goal>
-						</goals>
-						<phase>process-classes</phase>
-					</execution>
-				</executions>
-				<configuration>
-					<jsonLibrary>jackson2</jsonLibrary>
-					<classesWithAnnotations>
-						<annotation>org.apache.streampipes.model.shared.annotation.TsModel</annotation>
-					</classesWithAnnotations>
-					<excludePropertyAnnotations>
-						<annotation>org.apache.streampipes.model.shared.annotation.TsIgnore</annotation>
-					</excludePropertyAnnotations>
-					<excludeClasses>
-						<class>io.fogsy.empire.core.empire.SupportsRdfId</class>
-						<class>java.io.Serializable</class>
-					</excludeClasses>
-					<outputKind>module</outputKind>
-					<outputFileType>implementationFile</outputFileType>
-					<outputKind>module</outputKind>
-					<disableTaggedUnions>false</disableTaggedUnions>
-					<mapClasses>asClasses</mapClasses>
-					<sortDeclarations>true</sortDeclarations>
-					<tsNoCheck>true</tsNoCheck>
-					<extensions>
-						<extension>cz.habarta.typescript.generator.ext.JsonDeserializationExtension</extension>
-					</extensions>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>cz.habarta.typescript-generator</groupId>
+                <artifactId>typescript-generator-maven-plugin</artifactId>
+                <version>2.27.744</version>
+                <executions>
+                    <execution>
+                        <id>generate</id>
+                        <goals>
+                            <goal>generate</goal>
+                        </goals>
+                        <phase>process-classes</phase>
+                    </execution>
+                </executions>
+                <configuration>
+                    <jsonLibrary>jackson2</jsonLibrary>
+                    <classesWithAnnotations>
+                        <annotation>org.apache.streampipes.model.shared.annotation.TsModel</annotation>
+                    </classesWithAnnotations>
+                    <excludePropertyAnnotations>
+                        <annotation>org.apache.streampipes.model.shared.annotation.TsIgnore</annotation>
+                    </excludePropertyAnnotations>
+                    <excludeClasses>
+                        <class>io.fogsy.empire.core.empire.SupportsRdfId</class>
+                        <class>java.io.Serializable</class>
+                    </excludeClasses>
+                    <outputKind>module</outputKind>
+                    <outputFileType>implementationFile</outputFileType>
+                    <outputKind>module</outputKind>
+                    <disableTaggedUnions>false</disableTaggedUnions>
+                    <mapClasses>asClasses</mapClasses>
+                    <sortDeclarations>true</sortDeclarations>
+                    <tsNoCheck>true</tsNoCheck>
+                    <extensions>
+                        <extension>cz.habarta.typescript.generator.ext.JsonDeserializationExtension</extension>
+                    </extensions>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/Category.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/Category.java
index 7351c614c..f8f8f7fbf 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/Category.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/Category.java
@@ -20,35 +20,40 @@ package org.apache.streampipes.model.client;
 
 public class Category {
 
-	private String type;
-	private String label;
-	private String description;
-	
-	
-	public Category(String type, String label, String description) {
-		super();
-		this.type = type;
-		this.label = label;
-		this.description = description;
-	}
-	
-	public String getType() {
-		return type;
-	}
-	public void setType(String type) {
-		this.type = type;
-	}
-	public String getLabel() {
-		return label;
-	}
-	public void setLabel(String label) {
-		this.label = label;
-	}
-	public String getDescription() {
-		return description;
-	}
-	public void setDescription(String description) {
-		this.description = description;
-	}
+  private String type;
+  private String label;
+  private String description;
+
+
+  public Category(String type, String label, String description) {
+    super();
+    this.type = type;
+    this.label = label;
+    this.description = description;
+  }
+
+  public String getType() {
+    return type;
+  }
+
+  public void setType(String type) {
+    this.type = type;
+  }
+
+  public String getLabel() {
+    return label;
+  }
+
+  public void setLabel(String label) {
+    this.label = label;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
 
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/RunningVisualization.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/RunningVisualization.java
index c03919721..da59a7370 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/RunningVisualization.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/RunningVisualization.java
@@ -24,10 +24,8 @@ import java.util.UUID;
 
 public class RunningVisualization {
 
-  private @SerializedName("_id")
-  String id;
-  private @SerializedName("_rev")
-  String rev;
+  private @SerializedName("_id") String id;
+  private @SerializedName("_rev") String rev;
 
   private String pipelineId;
   private String pipelineName;
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/connection/Connection.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/connection/Connection.java
index 8ac960209..0d61c1296 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/connection/Connection.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/connection/Connection.java
@@ -20,29 +20,28 @@ package org.apache.streampipes.model.client.connection;
 
 public class Connection {
 
-	private String from;
-	private String to;
-	
-	public Connection(String from, String to)
-	{
-		this.from = from;
-		this.to = to;
-	}
-
-	public String getFrom() {
-		return from;
-	}
-
-	public void setFrom(String from) {
-		this.from = from;
-	}
-
-	public String getTo() {
-		return to;
-	}
-
-	public void setTo(String to) {
-		this.to = to;
-	}
-	
+  private String from;
+  private String to;
+
+  public Connection(String from, String to) {
+    this.from = from;
+    this.to = to;
+  }
+
+  public String getFrom() {
+    return from;
+  }
+
+  public void setFrom(String from) {
+    this.from = from;
+  }
+
+  public String getTo() {
+    return to;
+  }
+
+  public void setTo(String to) {
+    this.to = to;
+  }
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/DeploymentConfiguration.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/DeploymentConfiguration.java
index 783ddab51..8190deb15 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/DeploymentConfiguration.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/DeploymentConfiguration.java
@@ -20,111 +20,111 @@ package org.apache.streampipes.model.client.deployment;
 
 public class DeploymentConfiguration {
 
-	private String groupId;
-	private String artifactId;
-	private String classNamePrefix;
-	
-	private String elementId;
-	private boolean draft;
-	
-	private int port;
-	
-	private DeploymentType deploymentType;
-	private ElementType elementType;
-	private OutputType outputType;
-	private RuntimeType runtimeType;
-
-	public DeploymentConfiguration() {
-
-	}
-
-	public DeploymentConfiguration(String groupId, String artifactId,
-			String classNamePrefix, int port) {
-		super();
-		this.groupId = groupId;
-		this.artifactId = artifactId;
-		this.classNamePrefix = classNamePrefix;
-		this.port = port;
-	}
-
-	public String getGroupId() {
-		return groupId;
-	}
-
-	public void setGroupId(String groupId) {
-		this.groupId = groupId;
-	}
-
-	public String getArtifactId() {
-		return artifactId;
-	}
-
-	public void setArtifactId(String artifactId) {
-		this.artifactId = artifactId;
-	}
-
-	public String getClassNamePrefix() {
-		return classNamePrefix;
-	}
-
-	public void setClassNamePrefix(String classNamePrefix) {
-		this.classNamePrefix = classNamePrefix;
-	}
-
-	public int getPort() {
-		return port;
-	}
-
-	public void setPort(int port) {
-		this.port = port;
-	}
-
-	public String getElementId() {
-		return elementId;
-	}
-
-	public void setElementId(String elementId) {
-		this.elementId = elementId;
-	}
-
-	public boolean isDraft() {
-		return draft;
-	}
-
-	public void setDraft(boolean draft) {
-		this.draft = draft;
-	}
-
-	public DeploymentType getDeploymentType() {
-		return deploymentType;
-	}
-
-	public void setDeploymentType(DeploymentType deploymentType) {
-		this.deploymentType = deploymentType;
-	}
-
-	public void setElementType(ElementType elementType) {
-		this.elementType = elementType;
-	}
-
-	public ElementType getElementType() {
-		return elementType;
-	}
-
-	public RuntimeType getRuntimeType() {
-		return runtimeType;
-	}
-
-	public void setRuntimeType(RuntimeType runtimeType) {
-		this.runtimeType = runtimeType;
-	}
-
-	public OutputType getOutputType() {
-		return outputType;
-	}
-
-	public void setOutputType(OutputType outputType) {
-		this.outputType = outputType;
-	}
-				
+  private String groupId;
+  private String artifactId;
+  private String classNamePrefix;
+
+  private String elementId;
+  private boolean draft;
+
+  private int port;
+
+  private DeploymentType deploymentType;
+  private ElementType elementType;
+  private OutputType outputType;
+  private RuntimeType runtimeType;
+
+  public DeploymentConfiguration() {
+
+  }
+
+  public DeploymentConfiguration(String groupId, String artifactId,
+                                 String classNamePrefix, int port) {
+    super();
+    this.groupId = groupId;
+    this.artifactId = artifactId;
+    this.classNamePrefix = classNamePrefix;
+    this.port = port;
+  }
+
+  public String getGroupId() {
+    return groupId;
+  }
+
+  public void setGroupId(String groupId) {
+    this.groupId = groupId;
+  }
+
+  public String getArtifactId() {
+    return artifactId;
+  }
+
+  public void setArtifactId(String artifactId) {
+    this.artifactId = artifactId;
+  }
+
+  public String getClassNamePrefix() {
+    return classNamePrefix;
+  }
+
+  public void setClassNamePrefix(String classNamePrefix) {
+    this.classNamePrefix = classNamePrefix;
+  }
+
+  public int getPort() {
+    return port;
+  }
+
+  public void setPort(int port) {
+    this.port = port;
+  }
+
+  public String getElementId() {
+    return elementId;
+  }
+
+  public void setElementId(String elementId) {
+    this.elementId = elementId;
+  }
+
+  public boolean isDraft() {
+    return draft;
+  }
+
+  public void setDraft(boolean draft) {
+    this.draft = draft;
+  }
+
+  public DeploymentType getDeploymentType() {
+    return deploymentType;
+  }
+
+  public void setDeploymentType(DeploymentType deploymentType) {
+    this.deploymentType = deploymentType;
+  }
+
+  public ElementType getElementType() {
+    return elementType;
+  }
+
+  public void setElementType(ElementType elementType) {
+    this.elementType = elementType;
+  }
+
+  public RuntimeType getRuntimeType() {
+    return runtimeType;
+  }
+
+  public void setRuntimeType(RuntimeType runtimeType) {
+    this.runtimeType = runtimeType;
+  }
+
+  public OutputType getOutputType() {
+    return outputType;
+  }
+
+  public void setOutputType(OutputType outputType) {
+    this.outputType = outputType;
+  }
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/DeploymentType.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/DeploymentType.java
index 9ae111ef4..d0b667717 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/DeploymentType.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/DeploymentType.java
@@ -20,5 +20,5 @@ package org.apache.streampipes.model.client.deployment;
 
 
 public enum DeploymentType {
-    CONTAINER, STANDALONE, OSGI
+  CONTAINER, STANDALONE, OSGI
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/ElementType.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/ElementType.java
index 73203b0d1..c79b84d41 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/ElementType.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/ElementType.java
@@ -19,5 +19,5 @@
 package org.apache.streampipes.model.client.deployment;
 
 public enum ElementType {
-    SEP, SEPA, SEC
+  SEP, SEPA, SEC
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/OutputType.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/OutputType.java
index 14b280815..693d0580c 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/OutputType.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/OutputType.java
@@ -19,5 +19,5 @@
 package org.apache.streampipes.model.client.deployment;
 
 public enum OutputType {
-	IMPLEMENTATION, DESCRIPTION, DIRECT_IMPORT
+  IMPLEMENTATION, DESCRIPTION, DIRECT_IMPORT
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/RuntimeType.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/RuntimeType.java
index e7909ebfe..0d4a05420 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/RuntimeType.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/deployment/RuntimeType.java
@@ -19,5 +19,5 @@
 package org.apache.streampipes.model.client.deployment;
 
 public enum RuntimeType {
-    FLINK, ESPER, STORM, ALGORITHM
+  FLINK, ESPER, STORM, ALGORITHM
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/endpoint/ExtensionsServiceEndpoint.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/endpoint/ExtensionsServiceEndpoint.java
index f164d80e3..b4d34e401 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/endpoint/ExtensionsServiceEndpoint.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/endpoint/ExtensionsServiceEndpoint.java
@@ -22,40 +22,40 @@ import com.google.gson.annotations.SerializedName;
 
 public class ExtensionsServiceEndpoint {
 
-    private @SerializedName("_id") String id;
-    private @SerializedName("_rev") String rev;
+  private @SerializedName("_id") String id;
+  private @SerializedName("_rev") String rev;
 
-    private String endpointUrl;
+  private String endpointUrl;
 
-    public ExtensionsServiceEndpoint() {
+  public ExtensionsServiceEndpoint() {
 
-    }
+  }
 
-    public ExtensionsServiceEndpoint(String endpointUrl) {
-        this.endpointUrl = endpointUrl;
-    }
+  public ExtensionsServiceEndpoint(String endpointUrl) {
+    this.endpointUrl = endpointUrl;
+  }
 
-    public String getId() {
-        return id;
-    }
+  public String getId() {
+    return id;
+  }
 
-    public void setId(String id) {
-        this.id = id;
-    }
+  public void setId(String id) {
+    this.id = id;
+  }
 
-    public String getRev() {
-        return rev;
-    }
+  public String getRev() {
+    return rev;
+  }
 
-    public void setRev(String rev) {
-        this.rev = rev;
-    }
+  public void setRev(String rev) {
+    this.rev = rev;
+  }
 
-    public String getEndpointUrl() {
-        return endpointUrl;
-    }
+  public String getEndpointUrl() {
+    return endpointUrl;
+  }
 
-    public void setEndpointUrl(String endpointUrl) {
-        this.endpointUrl = endpointUrl;
-    }
+  public void setEndpointUrl(String endpointUrl) {
+    this.endpointUrl = endpointUrl;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/endpoint/ExtensionsServiceEndpointItem.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/endpoint/ExtensionsServiceEndpointItem.java
index 985426516..739ea9dde 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/endpoint/ExtensionsServiceEndpointItem.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/endpoint/ExtensionsServiceEndpointItem.java
@@ -25,119 +25,119 @@ import java.util.List;
 @TsModel
 public class ExtensionsServiceEndpointItem {
 
-    private String name;
-    private String description;
-    private String elementId;
-    private String uri;
-    private String type;
-    private String appId;
+  private String name;
+  private String description;
+  private String elementId;
+  private String uri;
+  private String type;
+  private String appId;
 
-    private boolean includesIcon;
-    private boolean includesDocs;
+  private boolean includesIcon;
+  private boolean includesDocs;
 
-    private boolean installed;
-    private boolean editable;
-    private boolean available;
+  private boolean installed;
+  private boolean editable;
+  private boolean available;
 
-    private List<ExtensionsServiceEndpointItem> streams;
+  private List<ExtensionsServiceEndpointItem> streams;
 
-    public ExtensionsServiceEndpointItem() {
+  public ExtensionsServiceEndpointItem() {
 
-    }
+  }
 
-    public String getName() {
-        return name;
-    }
+  public String getName() {
+    return name;
+  }
 
-    public void setName(String name) {
-        this.name = name;
-    }
+  public void setName(String name) {
+    this.name = name;
+  }
 
-    public String getDescription() {
-        return description;
-    }
+  public String getDescription() {
+    return description;
+  }
 
-    public void setDescription(String description) {
-        this.description = description;
-    }
+  public void setDescription(String description) {
+    this.description = description;
+  }
 
-    public String getUri() {
-        return uri;
-    }
+  public String getUri() {
+    return uri;
+  }
 
-    public void setUri(String uri) {
-        this.uri = uri;
-    }
+  public void setUri(String uri) {
+    this.uri = uri;
+  }
 
-    public List<ExtensionsServiceEndpointItem> getStreams() {
-        return streams;
-    }
+  public List<ExtensionsServiceEndpointItem> getStreams() {
+    return streams;
+  }
 
-    public void setStreams(List<ExtensionsServiceEndpointItem> streams) {
-        this.streams = streams;
-    }
+  public void setStreams(List<ExtensionsServiceEndpointItem> streams) {
+    this.streams = streams;
+  }
 
-    public boolean isInstalled() {
-        return installed;
-    }
+  public boolean isInstalled() {
+    return installed;
+  }
 
-    public void setInstalled(boolean installed) {
-        this.installed = installed;
-    }
+  public void setInstalled(boolean installed) {
+    this.installed = installed;
+  }
 
-    public String getType() {
-        return type;
-    }
+  public String getType() {
+    return type;
+  }
 
-    public void setType(String type) {
-        this.type = type;
-    }
+  public void setType(String type) {
+    this.type = type;
+  }
 
-    public String getAppId() {
-        return appId;
-    }
+  public String getAppId() {
+    return appId;
+  }
 
-    public void setAppId(String appId) {
-        this.appId = appId;
-    }
+  public void setAppId(String appId) {
+    this.appId = appId;
+  }
 
-    public boolean isEditable() {
-        return editable;
-    }
+  public boolean isEditable() {
+    return editable;
+  }
 
-    public void setEditable(boolean editable) {
-        this.editable = editable;
-    }
+  public void setEditable(boolean editable) {
+    this.editable = editable;
+  }
 
-    public String getElementId() {
-        return elementId;
-    }
+  public String getElementId() {
+    return elementId;
+  }
 
-    public void setElementId(String elementId) {
-        this.elementId = elementId;
-    }
+  public void setElementId(String elementId) {
+    this.elementId = elementId;
+  }
 
-    public boolean isIncludesIcon() {
-        return includesIcon;
-    }
+  public boolean isIncludesIcon() {
+    return includesIcon;
+  }
 
-    public void setIncludesIcon(boolean includesIcon) {
-        this.includesIcon = includesIcon;
-    }
+  public void setIncludesIcon(boolean includesIcon) {
+    this.includesIcon = includesIcon;
+  }
 
-    public boolean isIncludesDocs() {
-        return includesDocs;
-    }
+  public boolean isIncludesDocs() {
+    return includesDocs;
+  }
 
-    public void setIncludesDocs(boolean includesDocs) {
-        this.includesDocs = includesDocs;
-    }
+  public void setIncludesDocs(boolean includesDocs) {
+    this.includesDocs = includesDocs;
+  }
 
-    public boolean isAvailable() {
-        return available;
-    }
+  public boolean isAvailable() {
+    return available;
+  }
 
-    public void setAvailable(boolean available) {
-        this.available = available;
-    }
+  public void setAvailable(boolean available) {
+    this.available = available;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/exception/InvalidConnectionException.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/exception/InvalidConnectionException.java
index 9a6475a0e..ab18a217a 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/exception/InvalidConnectionException.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/exception/InvalidConnectionException.java
@@ -18,21 +18,21 @@
 
 package org.apache.streampipes.model.client.exception;
 
-import java.util.List;
-
 import org.apache.streampipes.model.client.matching.MatchingResultMessage;
 
+import java.util.List;
+
 public class InvalidConnectionException extends Exception {
 
-	private static final long serialVersionUID = 1L;
-
-	private List<MatchingResultMessage> errorLog;
-	
-	public InvalidConnectionException(List<MatchingResultMessage> errorLog) {
-		this.errorLog = errorLog;
-	}
-	
-	public List<MatchingResultMessage> getErrorLog() {
-		return errorLog;
-	}
+  private static final long serialVersionUID = 1L;
+
+  private List<MatchingResultMessage> errorLog;
+
+  public InvalidConnectionException(List<MatchingResultMessage> errorLog) {
+    this.errorLog = errorLog;
+  }
+
+  public List<MatchingResultMessage> getErrorLog() {
+    return errorLog;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultFactory.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultFactory.java
index b77e1ce9b..2c104acd6 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultFactory.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultFactory.java
@@ -20,12 +20,12 @@ package org.apache.streampipes.model.client.matching;
 
 public class MatchingResultFactory {
 
-	public static MatchingResultMessage build(MatchingResultType type, boolean success, String rightSubject) {
-		MatchingResultMessage message = new MatchingResultMessage();
-		message.setMatchingSuccessful(success);
-		message.setTitle(type.getTitle());
-		message.setDescription(type.getDescription());
-		message.setRequirementSubject(rightSubject);
-		return message;
-	}
+  public static MatchingResultMessage build(MatchingResultType type, boolean success, String rightSubject) {
+    MatchingResultMessage message = new MatchingResultMessage();
+    message.setMatchingSuccessful(success);
+    message.setTitle(type.getTitle());
+    message.setDescription(type.getDescription());
+    message.setRequirementSubject(rightSubject);
+    return message;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultMessage.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultMessage.java
index 0fc9166f5..040ff6efc 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultMessage.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultMessage.java
@@ -25,84 +25,90 @@ import java.util.Objects;
 @TsModel
 public class MatchingResultMessage {
 
-	private boolean matchingSuccessful;
-	
-	private String title;
-	private String description;
-	
-	private String offerSubject;
-	private String requirementSubject;
-	
-	private String reasonText;
-	
-
-	public MatchingResultMessage() {
-		
-	}
-	
-	public String getTitle() {
-		return title;
-	}
-
-	public void setTitle(String title) {
-		this.title = title;
-	}
-
-	public boolean isMatchingSuccessful() {
-		return matchingSuccessful;
-	}
-
-	public void setMatchingSuccessful(boolean matchingSuccessful) {
-		this.matchingSuccessful = matchingSuccessful;
-	}
-
-	public String getOfferSubject() {
-		return offerSubject;
-	}
-
-	public void setOfferSubject(String offerSubject) {
-		this.offerSubject = offerSubject;
-	}
-
-	public String getRequirementSubject() {
-		return requirementSubject;
-	}
-
-	public void setRequirementSubject(String requirementSubject) {
-		this.requirementSubject = requirementSubject;
-	}
-
-	public String getReasonText() {
-		return reasonText;
-	}
-
-	public void setReasonText(String reasonText) {
-		this.reasonText = reasonText;
-	}
-
-	public String getDescription() {
-		return description;
-	}
-
-	public void setDescription(String description) {
-		this.description = description;
-	}
-
-	@Override
-	public String toString() {
-		return title + " - " + description + "\n" + "(required: " +requirementSubject + ")";
-	}
-
-	@Override
-	public boolean equals(Object o) {
-		if (this == o) return true;
-		if (o == null || getClass() != o.getClass()) return false;
-		MatchingResultMessage that = (MatchingResultMessage) o;
-		return matchingSuccessful == that.matchingSuccessful && Objects.equals(title, that.title) && Objects.equals(description, that.description) && Objects.equals(offerSubject, that.offerSubject) && Objects.equals(requirementSubject, that.requirementSubject) && Objects.equals(reasonText, that.reasonText);
-	}
-
-	@Override
-	public int hashCode() {
-		return Objects.hash(matchingSuccessful, title, description, offerSubject, requirementSubject, reasonText);
-	}
+  private boolean matchingSuccessful;
+
+  private String title;
+  private String description;
+
+  private String offerSubject;
+  private String requirementSubject;
+
+  private String reasonText;
+
+
+  public MatchingResultMessage() {
+
+  }
+
+  public String getTitle() {
+    return title;
+  }
+
+  public void setTitle(String title) {
+    this.title = title;
+  }
+
+  public boolean isMatchingSuccessful() {
+    return matchingSuccessful;
+  }
+
+  public void setMatchingSuccessful(boolean matchingSuccessful) {
+    this.matchingSuccessful = matchingSuccessful;
+  }
+
+  public String getOfferSubject() {
+    return offerSubject;
+  }
+
+  public void setOfferSubject(String offerSubject) {
+    this.offerSubject = offerSubject;
+  }
+
+  public String getRequirementSubject() {
+    return requirementSubject;
+  }
+
+  public void setRequirementSubject(String requirementSubject) {
+    this.requirementSubject = requirementSubject;
+  }
+
+  public String getReasonText() {
+    return reasonText;
+  }
+
+  public void setReasonText(String reasonText) {
+    this.reasonText = reasonText;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
+
+  @Override
+  public String toString() {
+    return title + " - " + description + "\n" + "(required: " + requirementSubject + ")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    MatchingResultMessage that = (MatchingResultMessage) o;
+    return matchingSuccessful == that.matchingSuccessful && Objects.equals(title, that.title)
+        && Objects.equals(description, that.description) && Objects.equals(offerSubject, that.offerSubject)
+        && Objects.equals(requirementSubject, that.requirementSubject) && Objects.equals(reasonText, that.reasonText);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(matchingSuccessful, title, description, offerSubject, requirementSubject, reasonText);
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultType.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultType.java
index 64127eb58..225a89953 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultType.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/matching/MatchingResultType.java
@@ -19,32 +19,33 @@
 package org.apache.streampipes.model.client.matching;
 
 public enum MatchingResultType {
-	
-	DATATYPE_MATCH("Datatype Match", "A required datatype is not present in the input event property."),
-	STREAM_MATCH("Stream Match", ""), 
-	DOMAIN_PROPERTY_MATCH("Domain Property Match", "A required domain property is not present in the input event property."), 
-	FORMAT_MATCH("Format Match", "No supported transport format found."), 
-	GROUNDING_MATCH("Grounding Match", ""), 
-	PROTOCOL_MATCH("Protocol Match", "No supported communication protocol found."), 
-	PROPERTY_MATCH("Property Match", "A required property is not present in the input event schema."), 
-	SCHEMA_MATCH("Schema Match", "A required schema is not present in the input event stream."), 
-	MEASUREMENT_UNIT_MATCH("Measurement Unit Match", ""), 
-	STREAM_QUALITY("Stream Quality Match", "");
-	
-	private String title;
-	private String description;
-	
-	MatchingResultType(String title, String description) {
-		this.title = title;
-		this.description = description;
-	}
-
-	public String getTitle() {
-		return title;
-	}
-
-	public String getDescription() {
-		return description;
-	}
-	
+
+  DATATYPE_MATCH("Datatype Match", "A required datatype is not present in the input event property."),
+  STREAM_MATCH("Stream Match", ""),
+  DOMAIN_PROPERTY_MATCH("Domain Property Match",
+      "A required domain property is not present in the input event property."),
+  FORMAT_MATCH("Format Match", "No supported transport format found."),
+  GROUNDING_MATCH("Grounding Match", ""),
+  PROTOCOL_MATCH("Protocol Match", "No supported communication protocol found."),
+  PROPERTY_MATCH("Property Match", "A required property is not present in the input event schema."),
+  SCHEMA_MATCH("Schema Match", "A required schema is not present in the input event stream."),
+  MEASUREMENT_UNIT_MATCH("Measurement Unit Match", ""),
+  STREAM_QUALITY("Stream Quality Match", "");
+
+  private String title;
+  private String description;
+
+  MatchingResultType(String title, String description) {
+    this.title = title;
+    this.description = description;
+  }
+
+  public String getTitle() {
+    return title;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/JobReport.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/JobReport.java
index 42fcc57f2..7abadf9ed 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/JobReport.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/JobReport.java
@@ -23,43 +23,42 @@ import java.util.List;
 
 public class JobReport {
 
-	// contains report of a single job
-	// TODO needed?
-	
-	//TODO store in database and create queries
-	
-	private String elementId;
-	private Date generationDate;
-	private List<TaskReport> taskReports;
-	
-	public JobReport(String elementId, Date generationDate, List<TaskReport> taskResults)
-	{
-		this.generationDate = generationDate;
-		this.taskReports = taskResults;
-		this.elementId = elementId;
-	}
+  // contains report of a single job
+  // TODO needed?
 
-	public Date getGenerationDate() {
-		return generationDate;
-	}
+  //TODO store in database and create queries
 
-	public void setGenerationDate(Date generationDate) {
-		this.generationDate = generationDate;
-	}
+  private String elementId;
+  private Date generationDate;
+  private List<TaskReport> taskReports;
 
-	public List<TaskReport> getTaskReports() {
-		return taskReports;
-	}
+  public JobReport(String elementId, Date generationDate, List<TaskReport> taskResults) {
+    this.generationDate = generationDate;
+    this.taskReports = taskResults;
+    this.elementId = elementId;
+  }
 
-	public void setTaskReports(List<TaskReport> taskReports) {
-		this.taskReports = taskReports;
-	}
+  public Date getGenerationDate() {
+    return generationDate;
+  }
 
-	public String getElementId() {
-		return elementId;
-	}
+  public void setGenerationDate(Date generationDate) {
+    this.generationDate = generationDate;
+  }
 
-	public void setElementId(String elementId) {
-		this.elementId = elementId;
-	}	
+  public List<TaskReport> getTaskReports() {
+    return taskReports;
+  }
+
+  public void setTaskReports(List<TaskReport> taskReports) {
+    this.taskReports = taskReports;
+  }
+
+  public String getElementId() {
+    return elementId;
+  }
+
+  public void setElementId(String elementId) {
+    this.elementId = elementId;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/TaskReport.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/TaskReport.java
index ecbd19b8f..a2daae739 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/TaskReport.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/TaskReport.java
@@ -21,37 +21,37 @@ package org.apache.streampipes.model.client.monitoring;
 import java.util.Date;
 
 public class TaskReport {
-	//contains report of an individual task
-	private Date executionDate;
-	private boolean success;
-	private String taskName;
-	
-	private String optionalMessage;
-
-	public TaskReport(String taskName, Date executionDate, boolean success,
-			String optinalMessage) {
-		super();
-		this.executionDate = executionDate;
-		this.success = success;
-		this.optionalMessage = optinalMessage;
-		this.taskName = taskName;
-	}
-
-	public Date getExecutionDate() {
-		return executionDate;
-	}
-
-	public boolean isSuccess() {
-		return success;
-	}
-
-	public String getOptionalMessage() {
-		return optionalMessage;
-	}	
-	
-	@Override
-	public String toString()
-	{
-		return "{ \nTask Execution: " +taskName +"\nDate: " +executionDate.toString() +"\nSuccess: " +success + "\nMessage: " +optionalMessage +"}";
-	}
+  //contains report of an individual task
+  private Date executionDate;
+  private boolean success;
+  private String taskName;
+
+  private String optionalMessage;
+
+  public TaskReport(String taskName, Date executionDate, boolean success,
+                    String optinalMessage) {
+    super();
+    this.executionDate = executionDate;
+    this.success = success;
+    this.optionalMessage = optinalMessage;
+    this.taskName = taskName;
+  }
+
+  public Date getExecutionDate() {
+    return executionDate;
+  }
+
+  public boolean isSuccess() {
+    return success;
+  }
+
+  public String getOptionalMessage() {
+    return optionalMessage;
+  }
+
+  @Override
+  public String toString() {
+    return "{ \nTask Execution: " + taskName + "\nDate: " + executionDate.toString() + "\nSuccess: " + success
+         + "\nMessage: " + optionalMessage + "}";
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/AbstractBurrowInfo.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/AbstractBurrowInfo.java
index f14462589..d2277698c 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/AbstractBurrowInfo.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/AbstractBurrowInfo.java
@@ -20,30 +20,30 @@ package org.apache.streampipes.model.client.monitoring.pipeline;
 
 public abstract class AbstractBurrowInfo {
 
-    protected String error;
-    protected String message;
+  protected String error;
+  protected String message;
 
-    public AbstractBurrowInfo(String error, String message) {
-        this.error = error;
-        this.message = message;
-    }
+  public AbstractBurrowInfo(String error, String message) {
+    this.error = error;
+    this.message = message;
+  }
 
-    public AbstractBurrowInfo() {
-    }
+  public AbstractBurrowInfo() {
+  }
 
-    public String getError() {
-        return error;
-    }
+  public String getError() {
+    return error;
+  }
 
-    public void setError(String error) {
-        this.error = error;
-    }
+  public void setError(String error) {
+    this.error = error;
+  }
 
-    public String getMessage() {
-        return message;
-    }
+  public String getMessage() {
+    return message;
+  }
 
-    public void setMessage(String message) {
-        this.message = message;
-    }
+  public void setMessage(String message) {
+    this.message = message;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerGroupStatus.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerGroupStatus.java
index 8b6d62f03..dfd5b90b5 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerGroupStatus.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerGroupStatus.java
@@ -20,81 +20,81 @@ package org.apache.streampipes.model.client.monitoring.pipeline;
 
 public class BurrowConsumerGroupStatus {
 
-    private String cluster;
-    private String group;
-    private String status;
-    private boolean complete;
-    private String[] partitions;
+  private String cluster;
+  private String group;
+  private String status;
+  private boolean complete;
+  private String[] partitions;
 
-    private Integer partition_count;
-    private Integer maxlag;
-    private Integer totallag;
+  private Integer partitionCount;
+  private Integer maxlag;
+  private Integer totallag;
 
-    public BurrowConsumerGroupStatus() {
+  public BurrowConsumerGroupStatus() {
 
-    }
+  }
 
-    public String getCluster() {
-        return cluster;
-    }
+  public String getCluster() {
+    return cluster;
+  }
 
-    public void setCluster(String cluster) {
-        this.cluster = cluster;
-    }
+  public void setCluster(String cluster) {
+    this.cluster = cluster;
+  }
 
-    public String getGroup() {
-        return group;
-    }
+  public String getGroup() {
+    return group;
+  }
 
-    public void setGroup(String group) {
-        this.group = group;
-    }
+  public void setGroup(String group) {
+    this.group = group;
+  }
 
-    public String getStatus() {
-        return status;
-    }
+  public String getStatus() {
+    return status;
+  }
 
-    public void setStatus(String status) {
-        this.status = status;
-    }
+  public void setStatus(String status) {
+    this.status = status;
+  }
 
-    public boolean isComplete() {
-        return complete;
-    }
+  public boolean isComplete() {
+    return complete;
+  }
 
-    public void setComplete(boolean complete) {
-        this.complete = complete;
-    }
+  public void setComplete(boolean complete) {
+    this.complete = complete;
+  }
 
-    public String[] getPartitions() {
-        return partitions;
-    }
+  public String[] getPartitions() {
+    return partitions;
+  }
 
-    public void setPartitions(String[] partitions) {
-        this.partitions = partitions;
-    }
+  public void setPartitions(String[] partitions) {
+    this.partitions = partitions;
+  }
 
-    public Integer getPartition_count() {
-        return partition_count;
-    }
+  public Integer getPartitionCount() {
+    return partitionCount;
+  }
 
-    public void setPartition_count(Integer partition_count) {
-        this.partition_count = partition_count;
-    }
+  public void setPartitionCount(Integer partitionCount) {
+    this.partitionCount = partitionCount;
+  }
 
-    public Integer getMaxlag() {
-        return maxlag;
-    }
+  public Integer getMaxlag() {
+    return maxlag;
+  }
 
-    public void setMaxlag(Integer maxlag) {
-        this.maxlag = maxlag;
-    }
+  public void setMaxlag(Integer maxlag) {
+    this.maxlag = maxlag;
+  }
 
-    public Integer getTotallag() {
-        return totallag;
-    }
+  public Integer getTotallag() {
+    return totallag;
+  }
 
-    public void setTotallag(Integer totallag) {
-        this.totallag = totallag;
-    }
+  public void setTotallag(Integer totallag) {
+    this.totallag = totallag;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerGroupStatusInfo.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerGroupStatusInfo.java
index 77d39a39a..784109213 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerGroupStatusInfo.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerGroupStatusInfo.java
@@ -20,20 +20,20 @@ package org.apache.streampipes.model.client.monitoring.pipeline;
 
 public class BurrowConsumerGroupStatusInfo extends AbstractBurrowInfo {
 
-    private BurrowConsumerGroupStatus status;
+  private BurrowConsumerGroupStatus status;
 
-    public BurrowConsumerGroupStatusInfo(String error, String message) {
-        super(error, message);
-    }
+  public BurrowConsumerGroupStatusInfo(String error, String message) {
+    super(error, message);
+  }
 
-    public BurrowConsumerGroupStatusInfo() {
-    }
+  public BurrowConsumerGroupStatusInfo() {
+  }
 
-    public BurrowConsumerGroupStatus getStatus() {
-        return status;
-    }
+  public BurrowConsumerGroupStatus getStatus() {
+    return status;
+  }
 
-    public void setStatus(BurrowConsumerGroupStatus status) {
-        this.status = status;
-    }
+  public void setStatus(BurrowConsumerGroupStatus status) {
+    this.status = status;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerInfo.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerInfo.java
index c57d6a160..d345beb63 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerInfo.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowConsumerInfo.java
@@ -18,28 +18,28 @@
 
 package org.apache.streampipes.model.client.monitoring.pipeline;
 
-public class BurrowConsumerInfo extends AbstractBurrowInfo{
+public class BurrowConsumerInfo extends AbstractBurrowInfo {
 
-    private String[] consumers;
+  private String[] consumers;
 
-    public BurrowConsumerInfo(String error, String message, String[] consumers) {
-        super(error, message);
-        this.consumers = consumers;
-    }
+  public BurrowConsumerInfo(String error, String message, String[] consumers) {
+    super(error, message);
+    this.consumers = consumers;
+  }
 
-    public BurrowConsumerInfo(String[] consumers) {
-        this.consumers = consumers;
-    }
+  public BurrowConsumerInfo(String[] consumers) {
+    this.consumers = consumers;
+  }
 
-    public BurrowConsumerInfo() {
+  public BurrowConsumerInfo() {
 
-    }
+  }
 
-    public String[] getConsumers() {
-        return consumers;
-    }
+  public String[] getConsumers() {
+    return consumers;
+  }
 
-    public void setConsumers(String[] consumers) {
-        this.consumers = consumers;
-    }
+  public void setConsumers(String[] consumers) {
+    this.consumers = consumers;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowTopicInfo.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowTopicInfo.java
index 8c9d8d863..4a69e15dc 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowTopicInfo.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/monitoring/pipeline/BurrowTopicInfo.java
@@ -20,21 +20,21 @@ package org.apache.streampipes.model.client.monitoring.pipeline;
 
 public class BurrowTopicInfo extends AbstractBurrowInfo {
 
-    private Long[] offsets;
+  private Long[] offsets;
 
-    public BurrowTopicInfo(String error, String message, Long[] offsets) {
-        super(error, message);
-        this.offsets = offsets;
-    }
+  public BurrowTopicInfo(String error, String message, Long[] offsets) {
+    super(error, message);
+    this.offsets = offsets;
+  }
 
-    public BurrowTopicInfo() {
-    }
+  public BurrowTopicInfo() {
+  }
 
-    public Long[] getOffsets() {
-        return offsets;
-    }
+  public Long[] getOffsets() {
+    return offsets;
+  }
 
-    public void setOffsets(Long[] offsets) {
-        this.offsets = offsets;
-    }
+  public void setOffsets(Long[] offsets) {
+    this.offsets = offsets;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Concept.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Concept.java
index 5f19198dd..eef530075 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Concept.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Concept.java
@@ -22,31 +22,30 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class Concept extends OntologyElement {
-	
-	private List<Property> domainProperties;
-	
-	public Concept(ElementHeader elementHeader, String rdfsLabel, String rdfsDescription, List<Property> domainProperties)
-	{
-		super(elementHeader, rdfsLabel, rdfsDescription);
-		this.domainProperties = domainProperties;
-	}
-	
-	public Concept()
-	{
-		this.domainProperties = new ArrayList<>();
-	}
-
-	public Concept(ElementHeader header) {
-		super(header);
-	}
-
-	public List<Property> getDomainProperties() {
-		return domainProperties;
-	}
-
-	public void setDomainProperties(List<Property> domainProperties) {
-		this.domainProperties = domainProperties;
-	}
-	
+
+  private List<Property> domainProperties;
+
+  public Concept(ElementHeader elementHeader, String rdfsLabel, String rdfsDescription,
+                 List<Property> domainProperties) {
+    super(elementHeader, rdfsLabel, rdfsDescription);
+    this.domainProperties = domainProperties;
+  }
+
+  public Concept() {
+    this.domainProperties = new ArrayList<>();
+  }
+
+  public Concept(ElementHeader header) {
+    super(header);
+  }
+
+  public List<Property> getDomainProperties() {
+    return domainProperties;
+  }
+
+  public void setDomainProperties(List<Property> domainProperties) {
+    this.domainProperties = domainProperties;
+  }
+
 
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Context.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Context.java
index c0720664f..55d2d9370 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Context.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Context.java
@@ -22,44 +22,44 @@ import java.io.InputStream;
 
 public class Context {
 
-	private InputStream inputStream;
-	private String baseUri;
-	
-	private String contextId;
-	
-	private RdfFormat rdfFormat;
-
-	public InputStream getInputStream() {
-		return inputStream;
-	}
-
-	public void setInputStream(InputStream inputStream) {
-		this.inputStream = inputStream;
-	}
-
-	public String getBaseUri() {
-		return baseUri;
-	}
-
-	public void setBaseUri(String baseUri) {
-		this.baseUri = baseUri;
-	}
-
-	public String getContextId() {
-		return contextId;
-	}
-
-	public void setContextId(String contextId) {
-		this.contextId = contextId;
-	}
-
-	public RdfFormat getRdfFormat() {
-		return rdfFormat;
-	}
-
-	public void setRdfFormat(RdfFormat rdfFormat) {
-		this.rdfFormat = rdfFormat;
-	}
-
-	
+  private InputStream inputStream;
+  private String baseUri;
+
+  private String contextId;
+
+  private RdfFormat rdfFormat;
+
+  public InputStream getInputStream() {
+    return inputStream;
+  }
+
+  public void setInputStream(InputStream inputStream) {
+    this.inputStream = inputStream;
+  }
+
+  public String getBaseUri() {
+    return baseUri;
+  }
+
+  public void setBaseUri(String baseUri) {
+    this.baseUri = baseUri;
+  }
+
+  public String getContextId() {
+    return contextId;
+  }
+
+  public void setContextId(String contextId) {
+    this.contextId = contextId;
+  }
+
+  public RdfFormat getRdfFormat() {
+    return rdfFormat;
+  }
+
+  public void setRdfFormat(RdfFormat rdfFormat) {
+    this.rdfFormat = rdfFormat;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/ElementHeader.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/ElementHeader.java
index 88bdf1fab..a584eeecb 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/ElementHeader.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/ElementHeader.java
@@ -20,51 +20,58 @@ package org.apache.streampipes.model.client.ontology;
 
 public class ElementHeader {
 
-	private String id;
-	private String title;
-	
-	private String prefix;
-	private String namespace;
-	
-		
-	public ElementHeader(String id, String title, String prefix,
-			String namespace) {
-		super();
-		this.id = id;
-		this.title = title;
-		this.prefix = prefix;
-		this.namespace = namespace;
-	}
-	
-	public ElementHeader(String propertyId, String title) {
-		this.id = propertyId;
-		this.title = title;
-	}
-
-	public String getId() {
-		return id;
-	}
-	public void setId(String id) {
-		this.id = id;
-	}
-	public String getTitle() {
-		return title;
-	}
-	public void setTitle(String title) {
-		this.title = title;
-	}
-	public String getPrefix() {
-		return prefix;
-	}
-	public void setPrefix(String prefix) {
-		this.prefix = prefix;
-	}
-	public String getNamespace() {
-		return namespace;
-	}
-	public void setNamespace(String namespace) {
-		this.namespace = namespace;
-	}
-	
-	
+  private String id;
+  private String title;
+
+  private String prefix;
+  private String namespace;
+
+
+  public ElementHeader(String id, String title, String prefix,
+                       String namespace) {
+    super();
+    this.id = id;
+    this.title = title;
+    this.prefix = prefix;
+    this.namespace = namespace;
+  }
+
+  public ElementHeader(String propertyId, String title) {
+    this.id = propertyId;
+    this.title = title;
+  }
+
+  public String getId() {
+    return id;
+  }
+
+  public void setId(String id) {
+    this.id = id;
+  }
+
+  public String getTitle() {
+    return title;
+  }
+
+  public void setTitle(String title) {
+    this.title = title;
+  }
+
+  public String getPrefix() {
+    return prefix;
+  }
+
+  public void setPrefix(String prefix) {
+    this.prefix = prefix;
+  }
+
+  public String getNamespace() {
+    return namespace;
+  }
+
+  public void setNamespace(String namespace) {
+    this.namespace = namespace;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/ElementType.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/ElementType.java
index fd79d16df..6e76c4071 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/ElementType.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/ElementType.java
@@ -19,5 +19,5 @@
 package org.apache.streampipes.model.client.ontology;
 
 public enum ElementType {
-Property, Concept, Instance
+  Property, Concept, Instance
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/EnumeratedRange.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/EnumeratedRange.java
index bfb561947..ab6c98990 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/EnumeratedRange.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/EnumeratedRange.java
@@ -22,23 +22,23 @@ import java.util.List;
 
 public class EnumeratedRange extends Range {
 
-	private static final String TITLE = "";
-	private static final String DESCRIPTION = "";
-	
-	private List<EnumeratedValue> enumeratedValues;
-
-	public EnumeratedRange(List<EnumeratedValue> enumeratedValues) {
-		super(RangeType.ENUMERATION, TITLE, DESCRIPTION);
-		this.enumeratedValues = enumeratedValues;
-	}
-
-	public List<EnumeratedValue> getEnumeratedValues() {
-		return enumeratedValues;
-	}
-
-	public void setEnumeratedValues(List<EnumeratedValue> enumeratedValues) {
-		this.enumeratedValues = enumeratedValues;
-	}
-	
-		
+  private static final String TITLE = "";
+  private static final String DESCRIPTION = "";
+
+  private List<EnumeratedValue> enumeratedValues;
+
+  public EnumeratedRange(List<EnumeratedValue> enumeratedValues) {
+    super(RangeType.ENUMERATION, TITLE, DESCRIPTION);
+    this.enumeratedValues = enumeratedValues;
+  }
+
+  public List<EnumeratedValue> getEnumeratedValues() {
+    return enumeratedValues;
+  }
+
+  public void setEnumeratedValues(List<EnumeratedValue> enumeratedValues) {
+    this.enumeratedValues = enumeratedValues;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/EnumeratedValue.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/EnumeratedValue.java
index 6a629eb84..59c734364 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/EnumeratedValue.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/EnumeratedValue.java
@@ -20,28 +20,31 @@ package org.apache.streampipes.model.client.ontology;
 
 public class EnumeratedValue {
 
-	private String elementName;
-	private String runtimeValue;
-	
-
-	public EnumeratedValue(String elementName, String runtimeValue) {
-		super();
-		this.elementName = elementName;
-		this.runtimeValue = runtimeValue;
-	}
-		
-	public String getElementName() {
-		return elementName;
-	}
-	public void setElementName(String elementName) {
-		this.elementName = elementName;
-	}
-	public String getRuntimeValue() {
-		return runtimeValue;
-	}
-	public void setRuntimeValue(String runtimeValue) {
-		this.runtimeValue = runtimeValue;
-	}
-	
-	
+  private String elementName;
+  private String runtimeValue;
+
+
+  public EnumeratedValue(String elementName, String runtimeValue) {
+    super();
+    this.elementName = elementName;
+    this.runtimeValue = runtimeValue;
+  }
+
+  public String getElementName() {
+    return elementName;
+  }
+
+  public void setElementName(String elementName) {
+    this.elementName = elementName;
+  }
+
+  public String getRuntimeValue() {
+    return runtimeValue;
+  }
+
+  public void setRuntimeValue(String runtimeValue) {
+    this.runtimeValue = runtimeValue;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Instance.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Instance.java
index 9df33c8af..54e8a4143 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Instance.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Instance.java
@@ -23,28 +23,27 @@ import java.util.List;
 
 public class Instance extends OntologyElement {
 
-private List<Property> domainProperties;
-	
-	public Instance(ElementHeader elementHeader, String rdfsLabel, String rdfsDescription, List<Property> domainProperties)
-	{
-		super(elementHeader, rdfsLabel, rdfsDescription);
-		this.domainProperties = domainProperties;
-	}
-	
-	public Instance()
-	{
-		this.domainProperties = new ArrayList<>();
-	}
-
-	public Instance(ElementHeader header) {
-		super(header);
-	}
-
-	public List<Property> getDomainProperties() {
-		return domainProperties;
-	}
-
-	public void setDomainProperties(List<Property> domainProperties) {
-		this.domainProperties = domainProperties;
-	}
+  private List<Property> domainProperties;
+
+  public Instance(ElementHeader elementHeader, String rdfsLabel, String rdfsDescription,
+                  List<Property> domainProperties) {
+    super(elementHeader, rdfsLabel, rdfsDescription);
+    this.domainProperties = domainProperties;
+  }
+
+  public Instance() {
+    this.domainProperties = new ArrayList<>();
+  }
+
+  public Instance(ElementHeader header) {
+    super(header);
+  }
+
+  public List<Property> getDomainProperties() {
+    return domainProperties;
+  }
+
+  public void setDomainProperties(List<Property> domainProperties) {
+    this.domainProperties = domainProperties;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Namespace.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Namespace.java
index 2c62dfe6a..5445cdc33 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Namespace.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Namespace.java
@@ -20,27 +20,31 @@ package org.apache.streampipes.model.client.ontology;
 
 public class Namespace {
 
-	private String prefix;
-	private String namespaceId;
-	
-	
-	public Namespace(String prefix, String namespaceId) {
-		super();
-		this.prefix = prefix;
-		this.namespaceId = namespaceId;
-	}
-	public String getPrefix() {
-		return prefix;
-	}
-	public void setPrefix(String prefix) {
-		this.prefix = prefix;
-	}
-	public String getNamespaceId() {
-		return namespaceId;
-	}
-	public void setNamespaceId(String name) {
-		this.namespaceId = name;
-	}
-	
-	
+  private String prefix;
+  private String namespaceId;
+
+
+  public Namespace(String prefix, String namespaceId) {
+    super();
+    this.prefix = prefix;
+    this.namespaceId = namespaceId;
+  }
+
+  public String getPrefix() {
+    return prefix;
+  }
+
+  public void setPrefix(String prefix) {
+    this.prefix = prefix;
+  }
+
+  public String getNamespaceId() {
+    return namespaceId;
+  }
+
+  public void setNamespaceId(String name) {
+    this.namespaceId = name;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/NodeType.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/NodeType.java
index 22ca559ff..07ea638ad 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/NodeType.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/NodeType.java
@@ -19,5 +19,5 @@
 package org.apache.streampipes.model.client.ontology;
 
 public enum NodeType {
-CLASS, INSTANCE, PROPERTY
+  CLASS, INSTANCE, PROPERTY
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyElement.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyElement.java
index 42dcf3dc2..132fbcf6d 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyElement.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyElement.java
@@ -19,50 +19,48 @@
 package org.apache.streampipes.model.client.ontology;
 
 public abstract class OntologyElement {
-	
-	private ElementHeader elementHeader;
-	
-	private String rdfsLabel;
-	private String rdfsDescription;
-	
-	public OntologyElement(ElementHeader elementHeader, String rdfsLabel, String rdfsDescription)
-	{
-		this.elementHeader = elementHeader;
-		this.rdfsLabel = rdfsLabel;
-		this.rdfsDescription = rdfsDescription;
-	}
-	
-	public OntologyElement()
-	{
-		
-	}
 
-	public OntologyElement(ElementHeader header) {
-		this.elementHeader = header;
-	}
+  private ElementHeader elementHeader;
 
-	public String getRdfsLabel() {
-		return rdfsLabel;
-	}
+  private String rdfsLabel;
+  private String rdfsDescription;
 
-	public void setRdfsLabel(String rdfsLabel) {
-		this.rdfsLabel = rdfsLabel;
-	}
+  public OntologyElement(ElementHeader elementHeader, String rdfsLabel, String rdfsDescription) {
+    this.elementHeader = elementHeader;
+    this.rdfsLabel = rdfsLabel;
+    this.rdfsDescription = rdfsDescription;
+  }
 
-	public String getRdfsDescription() {
-		return rdfsDescription;
-	}
+  public OntologyElement() {
 
-	public void setRdfsDescription(String rdfsDescription) {
-		this.rdfsDescription = rdfsDescription;
-	}
+  }
 
-	public ElementHeader getElementHeader() {
-		return elementHeader;
-	}
+  public OntologyElement(ElementHeader header) {
+    this.elementHeader = header;
+  }
+
+  public String getRdfsLabel() {
+    return rdfsLabel;
+  }
+
+  public void setRdfsLabel(String rdfsLabel) {
+    this.rdfsLabel = rdfsLabel;
+  }
+
+  public String getRdfsDescription() {
+    return rdfsDescription;
+  }
+
+  public void setRdfsDescription(String rdfsDescription) {
+    this.rdfsDescription = rdfsDescription;
+  }
+
+  public ElementHeader getElementHeader() {
+    return elementHeader;
+  }
+
+  public void setElementHeader(ElementHeader elementHeader) {
+    this.elementHeader = elementHeader;
+  }
 
-	public void setElementHeader(ElementHeader elementHeader) {
-		this.elementHeader = elementHeader;
-	}
-		
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyNode.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyNode.java
index 1a0432f12..019a560c3 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyNode.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyNode.java
@@ -23,92 +23,93 @@ import java.util.List;
 
 public class OntologyNode {
 
-	private String prefix;
-	private String namespace;
-		
-	private String id;
-	private String title;
-	private String icon;
-	
-	private List<OntologyNode> nodes;
-
-	public OntologyNode(String id, String title, NodeType nodeType) {
-		this.nodes = new ArrayList<>();
-		this.id = id;
-		this.title = title;
-		this.icon = toIconUrl(nodeType);
-	}
-	
-	public OntologyNode(String id, String title, String prefix, String namespace, NodeType nodeType) {
-		this(id, title, nodeType);
-		this.prefix = prefix;
-		this.namespace = namespace;
-	}
-	
-	private String toIconUrl(NodeType nodeType)
-	{
-		return "Test";
-		//return Configuration.getInstance().WEBAPP_BASE_URL + Configuration.getInstance().CONTEXT_PATH + "/img/" +nodeType.name() +".png";
-	}
-	
-	public String getId() {
-		return id;
-	}
-
-	public void setId(String id) {
-		this.id = id;
-	}
-
-	public String getTitle() {
-		return title;
-	}
-
-	public void setTitle(String text) {
-		this.title = text;
-	}
-
-	public List<OntologyNode> getNodes() {
-		return nodes;
-	}
-
-	public void setNodes(List<OntologyNode> children) {
-		this.nodes = children;
-	}
-
-	public String getIcon() {
-		return icon;
-	}
-
-	public void setIcon(String icon) {
-		this.icon = icon;
-	}
-
-	public String getPrefix() {
-		return prefix;
-	}
-
-	public void setPrefix(String prefix) {
-		this.prefix = prefix;
-	}
-
-	public String getNamespace() {
-		return namespace;
-	}
-
-	public void setNamespace(String namespace) {
-		this.namespace = namespace;
-	}
-	
-	@Override 
-	public int hashCode() {
-		   return id.hashCode();
-	}
-	
-	@Override
-	public boolean equals(Object other)
-	{
-		if (! (other instanceof OntologyNode)) return false;
-		else 
-				return this.id.equals(((OntologyNode)other).getId());
-	}
+  private String prefix;
+  private String namespace;
+
+  private String id;
+  private String title;
+  private String icon;
+
+  private List<OntologyNode> nodes;
+
+  public OntologyNode(String id, String title, NodeType nodeType) {
+    this.nodes = new ArrayList<>();
+    this.id = id;
+    this.title = title;
+    this.icon = toIconUrl(nodeType);
+  }
+
+  public OntologyNode(String id, String title, String prefix, String namespace, NodeType nodeType) {
+    this(id, title, nodeType);
+    this.prefix = prefix;
+    this.namespace = namespace;
+  }
+
+  private String toIconUrl(NodeType nodeType) {
+    return "Test";
+    // return Configuration.getInstance().WEBAPP_BASE_URL +
+    // Configuration.getInstance().CONTEXT_PATH + "/img/" +nodeType.name() +".png";
+  }
+
+  public String getId() {
+    return id;
+  }
+
+  public void setId(String id) {
+    this.id = id;
+  }
+
+  public String getTitle() {
+    return title;
+  }
+
+  public void setTitle(String text) {
+    this.title = text;
+  }
+
+  public List<OntologyNode> getNodes() {
+    return nodes;
+  }
+
+  public void setNodes(List<OntologyNode> children) {
+    this.nodes = children;
+  }
+
+  public String getIcon() {
+    return icon;
+  }
+
+  public void setIcon(String icon) {
+    this.icon = icon;
+  }
+
+  public String getPrefix() {
+    return prefix;
+  }
+
+  public void setPrefix(String prefix) {
+    this.prefix = prefix;
+  }
+
+  public String getNamespace() {
+    return namespace;
+  }
+
+  public void setNamespace(String namespace) {
+    this.namespace = namespace;
+  }
+
+  @Override
+  public int hashCode() {
+    return id.hashCode();
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (!(other instanceof OntologyNode)) {
+      return false;
+    } else {
+      return this.id.equals(((OntologyNode) other).getId());
+    }
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQuery.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQuery.java
index d86b9d1f3..9f3ad6e3e 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQuery.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQuery.java
@@ -22,33 +22,33 @@ import java.util.List;
 
 public class OntologyQuery {
 
-	private String requiredClass;
-	
-	private List<OntologyQueryItem> requiredProperties;
-
-	
-	public OntologyQuery(String requiredClass,
-			List<OntologyQueryItem> requiredProperties) {
-		super();
-		this.requiredClass = requiredClass;
-		this.requiredProperties = requiredProperties;
-	}
-
-	public String getRequiredClass() {
-		return requiredClass;
-	}
-
-	public void setRequiredClass(String requiredClass) {
-		this.requiredClass = requiredClass;
-	}
-
-	public List<OntologyQueryItem> getRequiredProperties() {
-		return requiredProperties;
-	}
-
-	public void setRequiredProperties(List<OntologyQueryItem> requiredProperties) {
-		this.requiredProperties = requiredProperties;
-	}
-	
-	
+  private String requiredClass;
+
+  private List<OntologyQueryItem> requiredProperties;
+
+
+  public OntologyQuery(String requiredClass,
+                       List<OntologyQueryItem> requiredProperties) {
+    super();
+    this.requiredClass = requiredClass;
+    this.requiredProperties = requiredProperties;
+  }
+
+  public String getRequiredClass() {
+    return requiredClass;
+  }
+
+  public void setRequiredClass(String requiredClass) {
+    this.requiredClass = requiredClass;
+  }
+
+  public List<OntologyQueryItem> getRequiredProperties() {
+    return requiredProperties;
+  }
+
+  public void setRequiredProperties(List<OntologyQueryItem> requiredProperties) {
+    this.requiredProperties = requiredProperties;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQueryItem.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQueryItem.java
index 1cafd1d46..9c52d0f5d 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQueryItem.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQueryItem.java
@@ -22,28 +22,29 @@ import java.util.List;
 
 public class OntologyQueryItem {
 
-	private String propertyId;
-	
-	private List<OntologyQueryResponse> queryResponse;
-	
-	public OntologyQueryItem(String propertyValue, List<OntologyQueryResponse> queryResponse) {
-		super();
-		this.propertyId = propertyId;
-	}
-	
-	public String getPropertyId() {
-		return propertyId;
-	}
-	public void setPropertyId(String propertyId) {
-		this.propertyId = propertyId;
-	}
-
-	public List<OntologyQueryResponse> getQueryResponse() {
-		return queryResponse;
-	}
-
-	public void setQueryResponse(List<OntologyQueryResponse> queryResponse) {
-		this.queryResponse = queryResponse;
-	}
-		
+  private String propertyId;
+
+  private List<OntologyQueryResponse> queryResponse;
+
+  public OntologyQueryItem(String propertyValue, List<OntologyQueryResponse> queryResponse) {
+    super();
+    this.propertyId = propertyId;
+  }
+
+  public String getPropertyId() {
+    return propertyId;
+  }
+
+  public void setPropertyId(String propertyId) {
+    this.propertyId = propertyId;
+  }
+
+  public List<OntologyQueryResponse> getQueryResponse() {
+    return queryResponse;
+  }
+
+  public void setQueryResponse(List<OntologyQueryResponse> queryResponse) {
+    this.queryResponse = queryResponse;
+  }
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQueryResponse.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQueryResponse.java
index e5fc654d6..e36b870eb 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQueryResponse.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/OntologyQueryResponse.java
@@ -20,48 +20,47 @@ package org.apache.streampipes.model.client.ontology;
 
 public class OntologyQueryResponse {
 
-	private String label;
-	private String description;
-	
-	private String propertyValue;
+  private String label;
+  private String description;
 
-	
-	public OntologyQueryResponse(String label, String description,
-			String propertyValue) {
-		super();
-		this.label = label;
-		this.description = description;
-		this.propertyValue = propertyValue;
-	}
+  private String propertyValue;
 
-	public OntologyQueryResponse() {
-		// TODO Auto-generated constructor stub
-	}
 
-	public String getLabel() {
-		return label;
-	}
+  public OntologyQueryResponse(String label, String description,
+                               String propertyValue) {
+    super();
+    this.label = label;
+    this.description = description;
+    this.propertyValue = propertyValue;
+  }
 
-	public void setLabel(String label) {
-		this.label = label;
-	}
+  public OntologyQueryResponse() {
+    // TODO Auto-generated constructor stub
+  }
 
-	public String getDescription() {
-		return description;
-	}
+  public String getLabel() {
+    return label;
+  }
 
-	public void setDescription(String description) {
-		this.description = description;
-	}
+  public void setLabel(String label) {
+    this.label = label;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
+
+  public String getPropertyValue() {
+    return propertyValue;
+  }
+
+  public void setPropertyValue(String propertyValue) {
+    this.propertyValue = propertyValue;
+  }
 
-	public String getPropertyValue() {
-		return propertyValue;
-	}
 
-	public void setPropertyValue(String propertyValue) {
-		this.propertyValue = propertyValue;
-	}
-	
-	
-	
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/PrimitiveRange.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/PrimitiveRange.java
index 0ef48dd60..2bbd18f25 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/PrimitiveRange.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/PrimitiveRange.java
@@ -20,35 +20,33 @@ package org.apache.streampipes.model.client.ontology;
 
 public class PrimitiveRange extends Range {
 
-	private static final String TITLE = "";
-	private static final String DESCRIPTION = "";
-	
-	private String rdfsDatatype;
-
-	private String value;
-	
-	public PrimitiveRange(String rdfsDatatype) {
-		super(RangeType.PRIMITIVE, TITLE, DESCRIPTION);
-		this.rdfsDatatype = rdfsDatatype;
-	}
-
-	public String getRdfsDatatype() {
-		return rdfsDatatype;
-	}
-
-	public void setRdfsDatatype(String rdfsDatatype) {
-		this.rdfsDatatype = rdfsDatatype;
-	}
-
-	public String getValue() {
-		return value;
-	}
-
-	public void setValue(String value) {
-		this.value = value;
-	}
-	
-	
-	
-	
+  private static final String TITLE = "";
+  private static final String DESCRIPTION = "";
+
+  private String rdfsDatatype;
+
+  private String value;
+
+  public PrimitiveRange(String rdfsDatatype) {
+    super(RangeType.PRIMITIVE, TITLE, DESCRIPTION);
+    this.rdfsDatatype = rdfsDatatype;
+  }
+
+  public String getRdfsDatatype() {
+    return rdfsDatatype;
+  }
+
+  public void setRdfsDatatype(String rdfsDatatype) {
+    this.rdfsDatatype = rdfsDatatype;
+  }
+
+  public String getValue() {
+    return value;
+  }
+
+  public void setValue(String value) {
+    this.value = value;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Property.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Property.java
index a997b0284..41b50df2f 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Property.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Property.java
@@ -19,65 +19,66 @@
 package org.apache.streampipes.model.client.ontology;
 
 public class Property extends OntologyElement {
-	
-	private Range range;
-	
-	private boolean rangeDefined;
-	private boolean labelDefined;
-	
-	public Property(ElementHeader elementHeader, String rdfsLabel, String rdfsDescription, Range range)
-	{
-		super(elementHeader, rdfsLabel, rdfsDescription);
-		this.range = range;
-		this.labelDefined = true;
-		this.rangeDefined = true;
-	}
-
-	public Property() {
-		// TODO Auto-generated constructor stub
-	}
-
-	public Property(ElementHeader header) {
-		super(header);
-		this.rangeDefined = false;
-		this.labelDefined = false;
-	}
-
-	public Range getRange() {
-		return range;
-	}
-
-	public void setRange(Range range) {
-		this.range = range;
-	}
-
-	public boolean isRangeDefined() {
-		return rangeDefined;
-	}
-
-	public void setRangeDefined(boolean rangeDefined) {
-		this.rangeDefined = rangeDefined;
-	}
-
-	public boolean isLabelDefined() {
-		return labelDefined;
-	}
-
-	public void setLabelDefined(boolean labelDefined) {
-		this.labelDefined = labelDefined;
-	}
-	
-	@Override 
-	public int hashCode() {
-		   return this.getElementHeader().getId().hashCode();
-	}
-	
-	@Override
-	public boolean equals(Object other)
-	{
-		if (! (other instanceof Property)) return false;
-		else return this.getElementHeader().getId().equals(((Property)other).getElementHeader().getId());
-	}
-	
-	
+
+  private Range range;
+
+  private boolean rangeDefined;
+  private boolean labelDefined;
+
+  public Property(ElementHeader elementHeader, String rdfsLabel, String rdfsDescription, Range range) {
+    super(elementHeader, rdfsLabel, rdfsDescription);
+    this.range = range;
+    this.labelDefined = true;
+    this.rangeDefined = true;
+  }
+
+  public Property() {
+    // TODO Auto-generated constructor stub
+  }
+
+  public Property(ElementHeader header) {
+    super(header);
+    this.rangeDefined = false;
+    this.labelDefined = false;
+  }
+
+  public Range getRange() {
+    return range;
+  }
+
+  public void setRange(Range range) {
+    this.range = range;
+  }
+
+  public boolean isRangeDefined() {
+    return rangeDefined;
+  }
+
+  public void setRangeDefined(boolean rangeDefined) {
+    this.rangeDefined = rangeDefined;
+  }
+
+  public boolean isLabelDefined() {
+    return labelDefined;
+  }
+
+  public void setLabelDefined(boolean labelDefined) {
+    this.labelDefined = labelDefined;
+  }
+
+  @Override
+  public int hashCode() {
+    return this.getElementHeader().getId().hashCode();
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (!(other instanceof Property)) {
+      return false;
+    } else {
+      return this.getElementHeader().getId().equals(((Property) other).getElementHeader().getId());
+    }
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/QuantitativeValueRange.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/QuantitativeValueRange.java
index ff205be14..50cb21ae7 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/QuantitativeValueRange.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/QuantitativeValueRange.java
@@ -20,48 +20,48 @@ package org.apache.streampipes.model.client.ontology;
 
 public class QuantitativeValueRange extends Range {
 
-	private static final String TITLE = "";
-	private static final String DESCRIPTION = "";
-	
-	private int minValue;
-	private int maxValue;
-	
-	private String unitCode;
-	
-	public QuantitativeValueRange(int minValue, int maxValue, String unitCode) {
-		this();
-		this.minValue = minValue;
-		this.maxValue = maxValue;
-		this.unitCode = unitCode;
-	}
+  private static final String TITLE = "";
+  private static final String DESCRIPTION = "";
 
-	public QuantitativeValueRange() {
-		super(RangeType.QUANTITATIVE_VALUE, TITLE, DESCRIPTION);
-	}
+  private int minValue;
+  private int maxValue;
 
-	public int getMinValue() {
-		return minValue;
-	}
+  private String unitCode;
 
-	public void setMinValue(int minValue) {
-		this.minValue = minValue;
-	}
+  public QuantitativeValueRange(int minValue, int maxValue, String unitCode) {
+    this();
+    this.minValue = minValue;
+    this.maxValue = maxValue;
+    this.unitCode = unitCode;
+  }
 
-	public int getMaxValue() {
-		return maxValue;
-	}
+  public QuantitativeValueRange() {
+    super(RangeType.QUANTITATIVE_VALUE, TITLE, DESCRIPTION);
+  }
 
-	public void setMaxValue(int maxValue) {
-		this.maxValue = maxValue;
-	}
+  public int getMinValue() {
+    return minValue;
+  }
+
+  public void setMinValue(int minValue) {
+    this.minValue = minValue;
+  }
+
+  public int getMaxValue() {
+    return maxValue;
+  }
+
+  public void setMaxValue(int maxValue) {
+    this.maxValue = maxValue;
+  }
+
+  public String getUnitCode() {
+    return unitCode;
+  }
+
+  public void setUnitCode(String unitCode) {
+    this.unitCode = unitCode;
+  }
 
-	public String getUnitCode() {
-		return unitCode;
-	}
 
-	public void setUnitCode(String unitCode) {
-		this.unitCode = unitCode;
-	}
-	
-	
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Range.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Range.java
index 02c8f5972..a18d0004b 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Range.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Range.java
@@ -20,38 +20,41 @@ package org.apache.streampipes.model.client.ontology;
 
 public abstract class Range {
 
-	private String title;
-	private String description;
-	
-	private RangeType rangeType;
-	 
-	public Range(RangeType rangeType, String title, String description) {
-		super();
-		this.title = title;
-		this.rangeType = rangeType;
-		this.description = description;
-	}
-	
-	
-	public String getTitle() {
-		return title;
-	}
-	public void setTitle(String title) {
-		this.title = title;
-	}
-	public String getDescription() {
-		return description;
-	}
-	public void setDescription(String description) {
-		this.description = description;
-	}
-
-	public RangeType getRangeType() {
-		return rangeType;
-	}
-
-	public void setRangeType(RangeType rangeType) {
-		this.rangeType = rangeType;
-	}
-	
+  private String title;
+  private String description;
+
+  private RangeType rangeType;
+
+  public Range(RangeType rangeType, String title, String description) {
+    super();
+    this.title = title;
+    this.rangeType = rangeType;
+    this.description = description;
+  }
+
+
+  public String getTitle() {
+    return title;
+  }
+
+  public void setTitle(String title) {
+    this.title = title;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
+
+  public RangeType getRangeType() {
+    return rangeType;
+  }
+
+  public void setRangeType(RangeType rangeType) {
+    this.rangeType = rangeType;
+  }
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/RangeType.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/RangeType.java
index 2d98f38c4..08508132f 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/RangeType.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/RangeType.java
@@ -20,5 +20,5 @@ package org.apache.streampipes.model.client.ontology;
 
 public enum RangeType {
 
-	PRIMITIVE, QUANTITATIVE_VALUE, ENUMERATION, RDFS_CLASS
+  PRIMITIVE, QUANTITATIVE_VALUE, ENUMERATION, RDFS_CLASS
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/RdfFormat.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/RdfFormat.java
index 38d6ef45d..bd81234fb 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/RdfFormat.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/RdfFormat.java
@@ -19,5 +19,5 @@
 package org.apache.streampipes.model.client.ontology;
 
 public enum RdfFormat {
-	RDFXML, JSONLD, TURTLE, RDFA
+  RDFXML, JSONLD, TURTLE, RDFA
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Resource.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Resource.java
index 10b022e81..8ee133531 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Resource.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Resource.java
@@ -20,35 +20,42 @@ package org.apache.streampipes.model.client.ontology;
 
 public class Resource {
 
-	private ElementType elementType;
-	private String namespace;
-	private String elementName;
-	
-	private String instanceOf;
-	
-	
-	public String getNamespace() {
-		return namespace;
-	}
-	public void setNamespace(String namespace) {
-		this.namespace = namespace;
-	}
-	public String getElementName() {
-		return elementName;
-	}
-	public void setElementName(String elementName) {
-		this.elementName = elementName;
-	}
-	public ElementType getElementType() {
-		return elementType;
-	}
-	public void setElementType(ElementType elementType) {
-		this.elementType = elementType;
-	}
-	public String getInstanceOf() {
-		return instanceOf;
-	}
-	public void setInstanceOf(String instanceOf) {
-		this.instanceOf = instanceOf;
-	}
+  private ElementType elementType;
+  private String namespace;
+  private String elementName;
+
+  private String instanceOf;
+
+
+  public String getNamespace() {
+    return namespace;
+  }
+
+  public void setNamespace(String namespace) {
+    this.namespace = namespace;
+  }
+
+  public String getElementName() {
+    return elementName;
+  }
+
+  public void setElementName(String elementName) {
+    this.elementName = elementName;
+  }
+
+  public ElementType getElementType() {
+    return elementType;
+  }
+
+  public void setElementType(ElementType elementType) {
+    this.elementType = elementType;
+  }
+
+  public String getInstanceOf() {
+    return instanceOf;
+  }
+
+  public void setInstanceOf(String instanceOf) {
+    this.instanceOf = instanceOf;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Statement.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Statement.java
index 78b2684d3..b54055981 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Statement.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/ontology/Statement.java
@@ -20,31 +20,34 @@ package org.apache.streampipes.model.client.ontology;
 
 public class Statement {
 
-	private String predicate;
-	private String object;
-	
-	public Statement(String predicate, String object) {
-		super();
-		this.predicate = predicate;
-		this.object = object;
-	}
-	
-	public Statement() {
-		
-	}
-	
-	public String getPredicate() {
-		return predicate;
-	}
-	public void setPredicate(String predicate) {
-		this.predicate = predicate;
-	}
-	public String getObject() {
-		return object;
-	}
-	public void setObject(String object) {
-		this.object = object;
-	}
-	
-	
+  private String predicate;
+  private String object;
+
+  public Statement(String predicate, String object) {
+    super();
+    this.predicate = predicate;
+    this.object = object;
+  }
+
+  public Statement() {
+
+  }
+
+  public String getPredicate() {
+    return predicate;
+  }
+
+  public void setPredicate(String predicate) {
+    this.predicate = predicate;
+  }
+
+  public String getObject() {
+    return object;
+  }
+
+  public void setObject(String object) {
+    this.object = object;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/setup/InitialSettings.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/setup/InitialSettings.java
index 5f223cd21..d1936393a 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/setup/InitialSettings.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/setup/InitialSettings.java
@@ -22,62 +22,62 @@ import org.apache.streampipes.commons.random.UUIDGenerator;
 
 public class InitialSettings {
 
-	private String adminEmail;
-	private String adminPassword;
-	private String initialServiceAccountName;
-	private String initialServiceAccountSecret;
-	private Boolean installPipelineElements;
-	private String initialAdminUserSid;
-
-	public InitialSettings() {
-		this.initialAdminUserSid = UUIDGenerator.generateUuid();
-	}
-
-	public String getAdminPassword() {
-		return adminPassword;
-	}
-
-	public void setAdminPassword(String adminPassword) {
-		this.adminPassword = adminPassword;
-	}
-
-	public Boolean getInstallPipelineElements() {
-		return installPipelineElements;
-	}
-
-	public void setInstallPipelineElements(Boolean installPipelineElements) {
-		this.installPipelineElements = installPipelineElements;
-	}
-
-	public String getAdminEmail() {
-		return adminEmail;
-	}
-
-	public void setAdminEmail(String adminEmail) {
-		this.adminEmail = adminEmail;
-	}
-
-	public String getInitialServiceAccountName() {
-		return initialServiceAccountName;
-	}
-
-	public void setInitialServiceAccountName(String initialServiceAccountName) {
-		this.initialServiceAccountName = initialServiceAccountName;
-	}
-
-	public String getInitialServiceAccountSecret() {
-		return initialServiceAccountSecret;
-	}
-
-	public void setInitialServiceAccountSecret(String initialServiceAccountSecret) {
-		this.initialServiceAccountSecret = initialServiceAccountSecret;
-	}
-
-	public String getInitialAdminUserSid() {
-		return initialAdminUserSid;
-	}
-
-	public void setInitialAdminUserSid(String initialAdminUserSid) {
-		this.initialAdminUserSid = initialAdminUserSid;
-	}
+  private String adminEmail;
+  private String adminPassword;
+  private String initialServiceAccountName;
+  private String initialServiceAccountSecret;
+  private Boolean installPipelineElements;
+  private String initialAdminUserSid;
+
+  public InitialSettings() {
+    this.initialAdminUserSid = UUIDGenerator.generateUuid();
+  }
+
+  public String getAdminPassword() {
+    return adminPassword;
+  }
+
+  public void setAdminPassword(String adminPassword) {
+    this.adminPassword = adminPassword;
+  }
+
+  public Boolean getInstallPipelineElements() {
+    return installPipelineElements;
+  }
+
+  public void setInstallPipelineElements(Boolean installPipelineElements) {
+    this.installPipelineElements = installPipelineElements;
+  }
+
+  public String getAdminEmail() {
+    return adminEmail;
+  }
+
+  public void setAdminEmail(String adminEmail) {
+    this.adminEmail = adminEmail;
+  }
+
+  public String getInitialServiceAccountName() {
+    return initialServiceAccountName;
+  }
+
+  public void setInitialServiceAccountName(String initialServiceAccountName) {
+    this.initialServiceAccountName = initialServiceAccountName;
+  }
+
+  public String getInitialServiceAccountSecret() {
+    return initialServiceAccountSecret;
+  }
+
+  public void setInitialServiceAccountSecret(String initialServiceAccountSecret) {
+    this.initialServiceAccountSecret = initialServiceAccountSecret;
+  }
+
+  public String getInitialAdminUserSid() {
+    return initialAdminUserSid;
+  }
+
+  public void setInitialAdminUserSid(String initialAdminUserSid) {
+    this.initialAdminUserSid = initialAdminUserSid;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/ChangePasswordRequest.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/ChangePasswordRequest.java
index 02c93770f..36dbb1cca 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/ChangePasswordRequest.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/ChangePasswordRequest.java
@@ -31,6 +31,10 @@ public class ChangePasswordRequest {
     return newPassword;
   }
 
+  public void setNewPassword(String newPassword) {
+    this.newPassword = newPassword;
+  }
+
   public String getExistingPassword() {
     return existingPassword;
   }
@@ -38,8 +42,4 @@ public class ChangePasswordRequest {
   public void setExistingPassword(String existingPassword) {
     this.existingPassword = existingPassword;
   }
-
-  public void setNewPassword(String newPassword) {
-    this.newPassword = newPassword;
-  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Element.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Element.java
index d4e640bc2..bd1feb5a2 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Element.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Element.java
@@ -20,32 +20,31 @@ package org.apache.streampipes.model.client.user;
 
 public class Element {
 
-	private String elementId;
-	private boolean publicElement;
-
-	public Element() {
-	}
-
-	public Element(String elementId, boolean publicElement)
-	{
-		this.elementId = elementId;
-		this.publicElement = publicElement;
-	}
-
-	public String getElementId() {
-		return elementId;
-	}
-
-	public void setElementId(String elementId) {
-		this.elementId = elementId;
-	}
-
-	public boolean isPublicElement() {
-		return publicElement;
-	}
-
-	public void setPublicElement(boolean publicElement) {
-		this.publicElement = publicElement;
-	}
-	
+  private String elementId;
+  private boolean publicElement;
+
+  public Element() {
+  }
+
+  public Element(String elementId, boolean publicElement) {
+    this.elementId = elementId;
+    this.publicElement = publicElement;
+  }
+
+  public String getElementId() {
+    return elementId;
+  }
+
+  public void setElementId(String elementId) {
+    this.elementId = elementId;
+  }
+
+  public boolean isPublicElement() {
+    return publicElement;
+  }
+
+  public void setPublicElement(boolean publicElement) {
+    this.publicElement = publicElement;
+  }
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Group.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Group.java
index 8b319f0e5..7cccfadd1 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Group.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Group.java
@@ -17,9 +17,10 @@
  */
 package org.apache.streampipes.model.client.user;
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 import java.util.HashSet;
 import java.util.Set;
@@ -31,7 +32,7 @@ public class Group {
   protected @SerializedName("_rev") String rev;
 
   @JsonIgnore
-  private String $type = "group";
+  private String type = "group";
 
   private String groupName;
 
@@ -73,11 +74,11 @@ public class Group {
     this.roles = roles;
   }
 
-  public String get$type() {
-    return $type;
+  public String getType() {
+    return type;
   }
 
-  public void set$type(String $type) {
-    this.$type = $type;
+  public void setType(String type) {
+    this.type = type;
   }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/JwtAuthenticationResponse.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/JwtAuthenticationResponse.java
index 755597dec..a86f68039 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/JwtAuthenticationResponse.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/JwtAuthenticationResponse.java
@@ -20,22 +20,22 @@ package org.apache.streampipes.model.client.user;
 
 public class JwtAuthenticationResponse {
 
-	private String accessToken;
+  private String accessToken;
 
-	public static JwtAuthenticationResponse from(String accessToken) {
-		return new JwtAuthenticationResponse(accessToken);
-	}
+  private JwtAuthenticationResponse(String accessToken) {
+    this.accessToken = accessToken;
+  }
 
-	private JwtAuthenticationResponse(String accessToken) {
-		this.accessToken = accessToken;
-	}
+  public static JwtAuthenticationResponse from(String accessToken) {
+    return new JwtAuthenticationResponse(accessToken);
+  }
 
-	public String getAccessToken() {
-		return accessToken;
-	}
+  public String getAccessToken() {
+    return accessToken;
+  }
 
-	public void setAccessToken(String accessToken) {
-		this.accessToken = accessToken;
-	}
+  public void setAccessToken(String accessToken) {
+    this.accessToken = accessToken;
+  }
 
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/LoginRequest.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/LoginRequest.java
index 939485918..6615f6e7b 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/LoginRequest.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/LoginRequest.java
@@ -20,31 +20,34 @@ package org.apache.streampipes.model.client.user;
 
 public class LoginRequest {
 
-	private String username;
-	private String password;
-
-	public LoginRequest() {
-
-	}
-	
-	public LoginRequest(String username, String password) {
-		super();
-		this.username = username;
-		this.password = password;
-	}
-	
-	public String getUsername() {
-		return username;
-	}
-	public void setUsername(String username) {
-		this.username = username;
-	}
-	public String getPassword() {
-		return password;
-	}
-	public void setPassword(String password) {
-		this.password = password;
-	}
-
-	
+  private String username;
+  private String password;
+
+  public LoginRequest() {
+
+  }
+
+  public LoginRequest(String username, String password) {
+    super();
+    this.username = username;
+    this.password = password;
+  }
+
+  public String getUsername() {
+    return username;
+  }
+
+  public void setUsername(String username) {
+    this.username = username;
+  }
+
+  public String getPassword() {
+    return password;
+  }
+
+  public void setPassword(String password) {
+    this.password = password;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PasswordRecoveryToken.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PasswordRecoveryToken.java
index de93d96fc..cb8ae692e 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PasswordRecoveryToken.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PasswordRecoveryToken.java
@@ -22,7 +22,11 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 public class PasswordRecoveryToken extends AbstractMailToken {
 
   @JsonIgnore
-  private String $type = "password-recovery";
+  private String type = "password-recovery";
+
+  public PasswordRecoveryToken() {
+
+  }
 
   public static PasswordRecoveryToken create(String token, String username) {
     PasswordRecoveryToken passwordRecoveryToken = new PasswordRecoveryToken();
@@ -32,15 +36,11 @@ public class PasswordRecoveryToken extends AbstractMailToken {
     return passwordRecoveryToken;
   }
 
-  public PasswordRecoveryToken() {
-
-  }
-
-  public String get$type() {
-    return $type;
+  public String getType() {
+    return type;
   }
 
-  public void set$type(String $type) {
-    this.$type = $type;
+  public void setType(String type) {
+    this.type = type;
   }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Permission.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Permission.java
index d1ed39776..315481c24 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Permission.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Permission.java
@@ -17,9 +17,10 @@
  */
 package org.apache.streampipes.model.client.user;
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -31,7 +32,7 @@ public class Permission {
   protected @SerializedName("_rev") String rev;
 
   @JsonIgnore
-  private String $type = "permission";
+  private String type = "permission";
 
   private String objectInstanceId;
   private String objectClassName;
@@ -97,12 +98,12 @@ public class Permission {
     this.grantedAuthorities = grantedAuthorities;
   }
 
-  public String get$type() {
-    return $type;
+  public String getType() {
+    return type;
   }
 
-  public void set$type(String $type) {
-    this.$type = $type;
+  public void setType(String type) {
+    this.type = type;
   }
 
   public boolean isPublicElement() {
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PermissionBuilder.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PermissionBuilder.java
index c1af5c3f7..b7857caf7 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PermissionBuilder.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PermissionBuilder.java
@@ -21,16 +21,6 @@ public class PermissionBuilder {
 
   private Permission permission;
 
-  public static PermissionBuilder create(String objectInstanceId,
-                                         Class<?> objectInstanceClass,
-                                         String ownerSid) {
-    return new PermissionBuilder(
-            objectInstanceId,
-            objectInstanceClass,
-            ownerSid
-    );
-  }
-
   private PermissionBuilder(String objectInstanceId,
                             Class<?> objectInstanceClass,
                             String ownerSid) {
@@ -40,6 +30,16 @@ public class PermissionBuilder {
     this.permission.setOwnerSid(ownerSid);
   }
 
+  public static PermissionBuilder create(String objectInstanceId,
+                                         Class<?> objectInstanceClass,
+                                         String ownerSid) {
+    return new PermissionBuilder(
+        objectInstanceId,
+        objectInstanceClass,
+        ownerSid
+    );
+  }
+
   public PermissionBuilder with(PermissionEntry permissionEntry) {
     this.permission.addPermissionEntry(permissionEntry);
 
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PermissionEntry.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PermissionEntry.java
index f9dd25d8a..2dcc436bc 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PermissionEntry.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/PermissionEntry.java
@@ -50,8 +50,12 @@ public class PermissionEntry {
 
   @Override
   public boolean equals(Object o) {
-    if (this == o) return true;
-    if (o == null || getClass() != o.getClass()) return false;
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
     PermissionEntry that = (PermissionEntry) o;
     return sid.equals(that.sid) && principalType == that.principalType;
   }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Principal.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Principal.java
index a8fe7a1cf..bcdd9e0b1 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Principal.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Principal.java
@@ -27,122 +27,117 @@ import java.util.Set;
 
 public abstract class Principal {
 
-	protected @SerializedName("_id") String principalId;
-	protected @SerializedName("_rev") String rev;
-
-	@JsonIgnore
-	private String $type = "principal";
-
-	private boolean accountEnabled;
-	private boolean accountLocked;
-	private boolean accountExpired;
-
-	protected String username;
-
-	protected Set<String> objectPermissions;
-
-	protected Set<Role> roles;
-	protected Set<String> groups;
-
-	private PrincipalType principalType;
-
-	public Principal(PrincipalType principalType) {
-		this.principalType = principalType;
-		this.roles = new HashSet<>();
-		this.groups = new HashSet<>();
-		this.objectPermissions = new HashSet<>();
-	}
-
-
-	public String getRev() {
-		return rev;
-	}
-
-	public void setRev(String rev) {
-		this.rev = rev;
-	}
-
-	public String getPrincipalId() {
-		return principalId;
-	}
-
-	public void setPrincipalId(String principalId) {
-		this.principalId = principalId;
-	}
-
-	private Element find(String elementId, List<Element> source) {
-		return source.stream().filter(f -> f.getElementId().equals(elementId)).findFirst().orElseThrow(IllegalArgumentException::new);
-	}
-
-	public boolean isAccountEnabled() {
-		return accountEnabled;
-	}
-
-	public void setAccountEnabled(boolean accountEnabled) {
-		this.accountEnabled = accountEnabled;
-	}
-
-	public boolean isAccountLocked() {
-		return accountLocked;
-	}
-
-	public void setAccountLocked(boolean accountLocked) {
-		this.accountLocked = accountLocked;
-	}
-
-	public boolean isAccountExpired() {
-		return accountExpired;
-	}
-
-	public void setAccountExpired(boolean accountExpired) {
-		this.accountExpired = accountExpired;
-	}
-
-	public void setUsername(String username) {
-		this.username = username;
-	}
-
-	public Set<Role> getRoles() {
-		return roles;
-	}
-
-	public void setRoles(Set<Role> roles) {
-		this.roles = roles;
-	}
-
-	public PrincipalType getPrincipalType() {
-		return principalType;
-	}
-
-	public void setPrincipalType(PrincipalType principalType) {
-		this.principalType = principalType;
-	}
-
-	public Set<String> getGroups() {
-		return groups;
-	}
-
-	public void setGroups(Set<String> groups) {
-		this.groups = groups;
-	}
-
-	public String getUsername() {
-		return username;
-	}
-
-	public Set<String> getObjectPermissions() {
-		return objectPermissions;
-	}
-
-	public void setObjectPermissions(Set<String> objectPermissions) {
-		this.objectPermissions = objectPermissions;
-	}
-
-	public String get$type() {
-		return $type;
-	}
-
-	public void set$type(String $type) {
-		this.$type = $type;
-	}
+  protected @SerializedName("_id") String principalId;
+  protected @SerializedName("_rev") String rev;
+  protected String username;
+  protected Set<String> objectPermissions;
+  protected Set<Role> roles;
+  protected Set<String> groups;
+  @JsonIgnore
+  private String type = "principal";
+  private boolean accountEnabled;
+  private boolean accountLocked;
+  private boolean accountExpired;
+  private PrincipalType principalType;
+
+  public Principal(PrincipalType principalType) {
+    this.principalType = principalType;
+    this.roles = new HashSet<>();
+    this.groups = new HashSet<>();
+    this.objectPermissions = new HashSet<>();
+  }
+
+
+  public String getRev() {
+    return rev;
+  }
+
+  public void setRev(String rev) {
+    this.rev = rev;
+  }
+
+  public String getPrincipalId() {
+    return principalId;
+  }
+
+  public void setPrincipalId(String principalId) {
+    this.principalId = principalId;
+  }
+
+  private Element find(String elementId, List<Element> source) {
+    return source.stream().filter(f -> f.getElementId().equals(elementId)).findFirst()
+        .orElseThrow(IllegalArgumentException::new);
+  }
+
+  public boolean isAccountEnabled() {
+    return accountEnabled;
+  }
+
+  public void setAccountEnabled(boolean accountEnabled) {
+    this.accountEnabled = accountEnabled;
+  }
+
+  public boolean isAccountLocked() {
+    return accountLocked;
+  }
+
+  public void setAccountLocked(boolean accountLocked) {
+    this.accountLocked = accountLocked;
+  }
+
+  public boolean isAccountExpired() {
+    return accountExpired;
+  }
+
+  public void setAccountExpired(boolean accountExpired) {
+    this.accountExpired = accountExpired;
+  }
+
+  public Set<Role> getRoles() {
+    return roles;
+  }
+
+  public void setRoles(Set<Role> roles) {
+    this.roles = roles;
+  }
+
+  public PrincipalType getPrincipalType() {
+    return principalType;
+  }
+
+  public void setPrincipalType(PrincipalType principalType) {
+    this.principalType = principalType;
+  }
+
+  public Set<String> getGroups() {
+    return groups;
+  }
+
+  public void setGroups(Set<String> groups) {
+    this.groups = groups;
+  }
+
+  public String getUsername() {
+    return username;
+  }
+
+  public void setUsername(String username) {
+    this.username = username;
+  }
+
+  public Set<String> getObjectPermissions() {
+    return objectPermissions;
+  }
+
+  public void setObjectPermissions(Set<String> objectPermissions) {
+    this.objectPermissions = objectPermissions;
+  }
+
+  public String getType() {
+    return type;
+  }
+
+  public void setType(String type) {
+    this.type = type;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/RegistrationData.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/RegistrationData.java
index 3b431d65c..24658a75a 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/RegistrationData.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/RegistrationData.java
@@ -22,45 +22,47 @@ import java.util.List;
 
 public class RegistrationData {
 
-	private String username;
-	private String password;
-	private Role role;
-	
-	private List<String> roles;
-	
-	public RegistrationData()
-	{
-		
-	}
-	
-	public String getUsername() {
-		return username;
-	}
-	public void setUsername(String username) {
-		this.username = username;
-	}
-	public String getPassword() {
-		return password;
-	}
-	public void setPassword(String password) {
-		this.password = password;
-	}
-
-	public List<String> getRoles() {
-		return roles;
-	}
-
-	public void setRoles(List<String> roles) {
-		this.roles = roles;
-	}
-
-	public Role getRole() {
-		return role;
-	}
-
-	public void setRole(Role selectedRole) {
-		this.role = selectedRole;
-	}
-	
-	
+  private String username;
+  private String password;
+  private Role role;
+
+  private List<String> roles;
+
+  public RegistrationData() {
+
+  }
+
+  public String getUsername() {
+    return username;
+  }
+
+  public void setUsername(String username) {
+    this.username = username;
+  }
+
+  public String getPassword() {
+    return password;
+  }
+
+  public void setPassword(String password) {
+    this.password = password;
+  }
+
+  public List<String> getRoles() {
+    return roles;
+  }
+
+  public void setRoles(List<String> roles) {
+    this.roles = roles;
+  }
+
+  public Role getRole() {
+    return role;
+  }
+
+  public void setRole(Role selectedRole) {
+    this.role = selectedRole;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Role.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Role.java
index b9010b7de..7e2747595 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Role.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Role.java
@@ -31,69 +31,69 @@ public enum Role {
   ROLE_SERVICE_ADMIN(Constants.ROLE_SERVICE_ADMIN_VALUE),
 
   ROLE_PIPELINE_ADMIN(
-          Constants.ROLE_PIPELINE_ADMIN_VALUE,
-          Privilege.PRIVILEGE_READ_PIPELINE,
-          Privilege.PRIVILEGE_WRITE_PIPELINE,
-          Privilege.PRIVILEGE_DELETE_PIPELINE,
-          Privilege.PRIVILEGE_READ_PIPELINE_ELEMENT
+      Constants.ROLE_PIPELINE_ADMIN_VALUE,
+      Privilege.PRIVILEGE_READ_PIPELINE,
+      Privilege.PRIVILEGE_WRITE_PIPELINE,
+      Privilege.PRIVILEGE_DELETE_PIPELINE,
+      Privilege.PRIVILEGE_READ_PIPELINE_ELEMENT
   ),
 
   ROLE_DASHBOARD_ADMIN(
-          Constants.ROLE_DASHBOARD_ADMIN_VALUE,
-          Privilege.PRIVILEGE_READ_DASHBOARD,
-          Privilege.PRIVILEGE_WRITE_DASHBOARD,
-          Privilege.PRIVILEGE_DELETE_DASHBOARD
+      Constants.ROLE_DASHBOARD_ADMIN_VALUE,
+      Privilege.PRIVILEGE_READ_DASHBOARD,
+      Privilege.PRIVILEGE_WRITE_DASHBOARD,
+      Privilege.PRIVILEGE_DELETE_DASHBOARD
   ),
 
   ROLE_DATA_EXPLORER_ADMIN(
-          Constants.ROLE_DATA_EXPLORER_ADMIN_VALUE,
-          Privilege.PRIVILEGE_READ_DATA_EXPLORER_VIEW,
-          Privilege.PRIVILEGE_READ_DATA_EXPLORER_WIDGET,
-          Privilege.PRIVILEGE_WRITE_DATA_EXPLORER_VIEW,
-          Privilege.PRIVILEGE_WRITE_DATA_EXPLORER_WIDGET,
-          Privilege.PRIVILEGE_DELETE_DATA_EXPLORER_VIEW,
-          Privilege.PRIVILEGE_DELETE_DATA_EXPLORER_WIDGET,
-          Privilege.PRIVILEGE_READ_PIPELINE
+      Constants.ROLE_DATA_EXPLORER_ADMIN_VALUE,
+      Privilege.PRIVILEGE_READ_DATA_EXPLORER_VIEW,
+      Privilege.PRIVILEGE_READ_DATA_EXPLORER_WIDGET,
+      Privilege.PRIVILEGE_WRITE_DATA_EXPLORER_VIEW,
+      Privilege.PRIVILEGE_WRITE_DATA_EXPLORER_WIDGET,
+      Privilege.PRIVILEGE_DELETE_DATA_EXPLORER_VIEW,
+      Privilege.PRIVILEGE_DELETE_DATA_EXPLORER_WIDGET,
+      Privilege.PRIVILEGE_READ_PIPELINE
   ),
   ROLE_CONNECT_ADMIN(
-          Constants.ROLE_CONNECT_ADMIN_VALUE,
-          Privilege.PRIVILEGE_WRITE_ADAPTER
+      Constants.ROLE_CONNECT_ADMIN_VALUE,
+      Privilege.PRIVILEGE_WRITE_ADAPTER
 
   ),
 
   ROLE_DASHBOARD_USER(
-          Constants.ROLE_DASHBOARD_USER_VALUE,
-          Privilege.PRIVILEGE_READ_DASHBOARD,
-          Privilege.PRIVILEGE_READ_DASHBOARD_WIDGET,
-          Privilege.PRIVILEGE_READ_PIPELINE
+      Constants.ROLE_DASHBOARD_USER_VALUE,
+      Privilege.PRIVILEGE_READ_DASHBOARD,
+      Privilege.PRIVILEGE_READ_DASHBOARD_WIDGET,
+      Privilege.PRIVILEGE_READ_PIPELINE
   ),
 
   ROLE_DATA_EXPLORER_USER(
-          Constants.ROLE_DATA_EXPLORER_USER_VALUE,
-          Privilege.PRIVILEGE_READ_DATA_EXPLORER_VIEW,
-          Privilege.PRIVILEGE_READ_DATA_EXPLORER_WIDGET,
-          Privilege.PRIVILEGE_READ_PIPELINE
+      Constants.ROLE_DATA_EXPLORER_USER_VALUE,
+      Privilege.PRIVILEGE_READ_DATA_EXPLORER_VIEW,
+      Privilege.PRIVILEGE_READ_DATA_EXPLORER_WIDGET,
+      Privilege.PRIVILEGE_READ_PIPELINE
   ),
 
   ROLE_PIPELINE_USER(
-          Constants.ROLE_PIPELINE_USER_VALUE,
-          Privilege.PRIVILEGE_READ_PIPELINE,
-          Privilege.PRIVILEGE_READ_PIPELINE_ELEMENT
+      Constants.ROLE_PIPELINE_USER_VALUE,
+      Privilege.PRIVILEGE_READ_PIPELINE,
+      Privilege.PRIVILEGE_READ_PIPELINE_ELEMENT
   ),
 
   ROLE_APP_USER(Constants.ROLE_APP_USER_VALUE,
-          Privilege.PRIVILEGE_READ_PIPELINE,
-          Privilege.PRIVILEGE_READ_PIPELINE_ELEMENT),
+      Privilege.PRIVILEGE_READ_PIPELINE,
+      Privilege.PRIVILEGE_READ_PIPELINE_ELEMENT),
 
   ROLE_ASSET_USER(Constants.ROLE_ASSET_USER_VALUE,
-          Privilege.PRIVILEGE_READ_GENERIC_STORAGE,
-          Privilege.PRIVILEGE_READ_ASSETS),
+      Privilege.PRIVILEGE_READ_GENERIC_STORAGE,
+      Privilege.PRIVILEGE_READ_ASSETS),
 
   ROLE_ASSET_ADMIN(Constants.ROLE_ASSET_ADMIN_VALUE,
-          Privilege.PRIVILEGE_READ_ASSETS,
-          Privilege.PRIVILEGE_READ_GENERIC_STORAGE,
-          Privilege.PRIVILEGE_WRITE_GENERIC_STORAGE,
-          Privilege.PRIVILEGE_WRITE_ASSETS);
+      Privilege.PRIVILEGE_READ_ASSETS,
+      Privilege.PRIVILEGE_READ_GENERIC_STORAGE,
+      Privilege.PRIVILEGE_WRITE_GENERIC_STORAGE,
+      Privilege.PRIVILEGE_WRITE_ASSETS);
 
   private List<Privilege> privileges;
   private String roleString;
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/ServiceAccount.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/ServiceAccount.java
index ea45b7da4..acc87e799 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/ServiceAccount.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/ServiceAccount.java
@@ -27,9 +27,13 @@ public class ServiceAccount extends Principal {
   private String clientSecret;
   private boolean secretEncrypted;
 
+  public ServiceAccount() {
+    super(PrincipalType.SERVICE_ACCOUNT);
+  }
+
   public static ServiceAccount from(String serviceAccountName,
-                                 String clientSecret,
-                                 Set<Role> roles) {
+                                    String clientSecret,
+                                    Set<Role> roles) {
     ServiceAccount account = new ServiceAccount();
     account.setUsername(serviceAccountName);
     account.setClientSecret(clientSecret);
@@ -40,10 +44,6 @@ public class ServiceAccount extends Principal {
     return account;
   }
 
-  public ServiceAccount() {
-    super(PrincipalType.SERVICE_ACCOUNT);
-  }
-
   public String getClientSecret() {
     return clientSecret;
   }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Token.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Token.java
index 07de07728..a368d7851 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Token.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/Token.java
@@ -20,31 +20,30 @@ package org.apache.streampipes.model.client.user;
 
 public class Token {
 
-	private String principal;
-	private String credentials;
-	
-	public Token(String principal, String credentials) {
-		super();
-		this.principal = principal;
-		this.credentials = credentials;
-	}
-
-	public String getPrincipal() {
-		return principal;
-	}
-
-	public void setPrincipal(String principal) {
-		this.principal = principal;
-	}
-
-	public String getCredentials() {
-		return credentials;
-	}
-
-	public void setCredentials(String credentials) {
-		this.credentials = credentials;
-	}
-	
-	
-	
+  private String principal;
+  private String credentials;
+
+  public Token(String principal, String credentials) {
+    super();
+    this.principal = principal;
+    this.credentials = credentials;
+  }
+
+  public String getPrincipal() {
+    return principal;
+  }
+
+  public void setPrincipal(String principal) {
+    this.principal = principal;
+  }
+
+  public String getCredentials() {
+    return credentials;
+  }
+
+  public void setCredentials(String credentials) {
+    this.credentials = credentials;
+  }
+
+
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/UserAccount.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/UserAccount.java
index 009e156f5..3c6f5d96e 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/UserAccount.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/UserAccount.java
@@ -27,138 +27,133 @@ import java.util.Set;
 @TsModel
 public class UserAccount extends Principal {
 
-	protected String fullName;
-	protected String password;
-
-	protected List<String> preferredDataStreams;
-	protected List<String> preferredDataProcessors;
-	protected List<String> preferredDataSinks;
-
-	protected List<UserApiToken> userApiTokens;
-
-	protected boolean hideTutorial;
-	protected boolean darkMode = false;
-
-	public static UserAccount from(String username,
-																 String encryptedPassword,
-																 Set<Role> roles) {
-		UserAccount account = new UserAccount();
-		account.setUsername(username);
-		account.setPassword(encryptedPassword);
-		account.setRoles(roles);
-		account.setAccountEnabled(true);
-		account.setAccountLocked(false);
-
-		return account;
-	}
-
-	public UserAccount() {
-		super(PrincipalType.USER_ACCOUNT);
-		this.hideTutorial = false;
-		this.userApiTokens = new ArrayList<>();
-		this.preferredDataProcessors = new ArrayList<>();
-		this.preferredDataSinks = new ArrayList<>();
-		this.preferredDataStreams = new ArrayList<>();
-	}
-
-	public void setPassword(String password) {
-		this.password = password;
-	}
-
-	public Set<Role> getRoles() {
-		return roles;
-	}
-
-	public void setRoles(Set<Role> roles) {
-		this.roles = roles;
-	}
-
-	public List<String> getPreferredDataStreams() {
-		return preferredDataStreams;
-	}
-
-	public void setPreferredDataStreams(List<String> preferredDataStreams) {
-		this.preferredDataStreams = preferredDataStreams;
-	}
-
-	public List<String> getPreferredDataProcessors() {
-		return preferredDataProcessors;
-	}
-
-	public void setPreferredDataProcessors(List<String> preferredDataProcessors) {
-		this.preferredDataProcessors = preferredDataProcessors;
-	}
-
-	public List<String> getPreferredDataSinks() {
-		return preferredDataSinks;
-	}
-
-	public void setPreferredDataSinks(List<String> preferredDataSinks) {
-		this.preferredDataSinks = preferredDataSinks;
-	}
-	
-	public void addPreferredDataStream(String elementId)
-	{
-		this.preferredDataStreams.add(elementId);
-	}
-	
-	public void addPreferredDataProcessor(String elementId)
-	{
-		this.preferredDataProcessors.add(elementId);
-	}
-	
-	public void addPreferredDataSink(String elementId)
-	{
-		this.preferredDataSinks.add(elementId);
-	}
-	
-	public void removePreferredDataStream(String elementId) {
-		this.preferredDataStreams.remove(elementId);
-	}
-	
-	public void removePreferredDataProcessor(String elementId)
-	{
-		this.preferredDataProcessors.remove(elementId);
-	}
-	
-	public void removePreferredDataSink(String elementId)
-	{
-		this.preferredDataSinks.remove(elementId);
-	}
-
-	public String getFullName() {
-		return fullName;
-	}
-
-	public void setFullName(String fullName) {
-		this.fullName = fullName;
-	}
-
-	public List<UserApiToken> getUserApiTokens() {
-		return userApiTokens;
-	}
-
-	public void setUserApiTokens(List<UserApiToken> userApiTokens) {
-		this.userApiTokens = userApiTokens;
-	}
-
-	public boolean isHideTutorial() {
-		return hideTutorial;
-	}
-
-	public void setHideTutorial(boolean hideTutorial) {
-		this.hideTutorial = hideTutorial;
-	}
-
-	public boolean isDarkMode() {
-		return darkMode;
-	}
-
-	public void setDarkMode(boolean darkMode) {
-		this.darkMode = darkMode;
-	}
-
-	public String getPassword() {
-		return password;
-	}
+  protected String fullName;
+  protected String password;
+
+  protected List<String> preferredDataStreams;
+  protected List<String> preferredDataProcessors;
+  protected List<String> preferredDataSinks;
+
+  protected List<UserApiToken> userApiTokens;
+
+  protected boolean hideTutorial;
+  protected boolean darkMode = false;
+
+  public UserAccount() {
+    super(PrincipalType.USER_ACCOUNT);
+    this.hideTutorial = false;
+    this.userApiTokens = new ArrayList<>();
+    this.preferredDataProcessors = new ArrayList<>();
+    this.preferredDataSinks = new ArrayList<>();
+    this.preferredDataStreams = new ArrayList<>();
+  }
+
+  public static UserAccount from(String username,
+                                 String encryptedPassword,
+                                 Set<Role> roles) {
+    UserAccount account = new UserAccount();
+    account.setUsername(username);
+    account.setPassword(encryptedPassword);
+    account.setRoles(roles);
+    account.setAccountEnabled(true);
+    account.setAccountLocked(false);
+
+    return account;
+  }
+
+  public Set<Role> getRoles() {
+    return roles;
+  }
+
+  public void setRoles(Set<Role> roles) {
+    this.roles = roles;
+  }
+
+  public List<String> getPreferredDataStreams() {
+    return preferredDataStreams;
+  }
+
+  public void setPreferredDataStreams(List<String> preferredDataStreams) {
+    this.preferredDataStreams = preferredDataStreams;
+  }
+
+  public List<String> getPreferredDataProcessors() {
+    return preferredDataProcessors;
+  }
+
+  public void setPreferredDataProcessors(List<String> preferredDataProcessors) {
+    this.preferredDataProcessors = preferredDataProcessors;
+  }
+
+  public List<String> getPreferredDataSinks() {
+    return preferredDataSinks;
+  }
+
+  public void setPreferredDataSinks(List<String> preferredDataSinks) {
+    this.preferredDataSinks = preferredDataSinks;
+  }
+
+  public void addPreferredDataStream(String elementId) {
+    this.preferredDataStreams.add(elementId);
+  }
+
+  public void addPreferredDataProcessor(String elementId) {
+    this.preferredDataProcessors.add(elementId);
+  }
+
+  public void addPreferredDataSink(String elementId) {
+    this.preferredDataSinks.add(elementId);
+  }
+
+  public void removePreferredDataStream(String elementId) {
+    this.preferredDataStreams.remove(elementId);
+  }
+
+  public void removePreferredDataProcessor(String elementId) {
+    this.preferredDataProcessors.remove(elementId);
+  }
+
+  public void removePreferredDataSink(String elementId) {
+    this.preferredDataSinks.remove(elementId);
+  }
+
+  public String getFullName() {
+    return fullName;
+  }
+
+  public void setFullName(String fullName) {
+    this.fullName = fullName;
+  }
+
+  public List<UserApiToken> getUserApiTokens() {
+    return userApiTokens;
+  }
+
+  public void setUserApiTokens(List<UserApiToken> userApiTokens) {
+    this.userApiTokens = userApiTokens;
+  }
+
+  public boolean isHideTutorial() {
+    return hideTutorial;
+  }
+
+  public void setHideTutorial(boolean hideTutorial) {
+    this.hideTutorial = hideTutorial;
+  }
+
+  public boolean isDarkMode() {
+    return darkMode;
+  }
+
+  public void setDarkMode(boolean darkMode) {
+    this.darkMode = darkMode;
+  }
+
+  public String getPassword() {
+    return password;
+  }
+
+  public void setPassword(String password) {
+    this.password = password;
+  }
 }
diff --git a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/UserActivationToken.java b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/UserActivationToken.java
index 6d713e7db..1fe6ab028 100644
--- a/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/UserActivationToken.java
+++ b/streampipes-model-client/src/main/java/org/apache/streampipes/model/client/user/UserActivationToken.java
@@ -22,7 +22,10 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 public class UserActivationToken extends AbstractMailToken {
 
   @JsonIgnore
-  private String $type = "user-activation";
+  private String type = "user-activation";
+
+  public UserActivationToken() {
+  }
 
   public static UserActivationToken create(String token, String username) {
     UserActivationToken userActivationToken = new UserActivationToken();
@@ -32,14 +35,11 @@ public class UserActivationToken extends AbstractMailToken {
     return userActivationToken;
   }
 
-  public UserActivationToken() {
-  }
-
-  public String get$type() {
-    return $type;
+  public String getType() {
+    return type;
   }
 
-  public void set$type(String $type) {
-    this.$type = $type;
+  public void setType(String type) {
+    this.type = type;
   }
 }
diff --git a/streampipes-model-shared/pom.xml b/streampipes-model-shared/pom.xml
index 6d90b892a..879329471 100644
--- a/streampipes-model-shared/pom.xml
+++ b/streampipes-model-shared/pom.xml
@@ -27,5 +27,12 @@
 
     <artifactId>streampipes-model-shared</artifactId>
 
-
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
\ No newline at end of file
diff --git a/streampipes-model/pom.xml b/streampipes-model/pom.xml
index b36703f3c..e16aac663 100644
--- a/streampipes-model/pom.xml
+++ b/streampipes-model/pom.xml
@@ -16,7 +16,8 @@
   ~
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>streampipes-model</artifactId>
@@ -119,6 +120,10 @@
                     </extensions>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+            </plugin>
         </plugins>
     </build>
 
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/AdapterType.java b/streampipes-model/src/main/java/org/apache/streampipes/model/AdapterType.java
index 3ab4cf486..37bbdf93f 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/AdapterType.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/AdapterType.java
@@ -17,10 +17,11 @@
  */
 package org.apache.streampipes.model;
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.databind.JsonNode;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 @TsModel
 @JsonFormat(shape = JsonFormat.Shape.OBJECT)
@@ -36,14 +37,19 @@ public enum AdapterType {
   Energy("Energy", ""),
   Debugging("Testing & Debugging", "");
 
-  private String label;
-  private String description;
+  private final String label;
+  private final String description;
 
   AdapterType(String label, String description) {
     this.label = label;
     this.description = description;
   }
 
+  @JsonCreator
+  public static AdapterType fromString(JsonNode json) {
+    return AdapterType.valueOf(json.get("code").asText());
+  }
+
   public String getCode() {
     return this.name();
   }
@@ -55,9 +61,4 @@ public enum AdapterType {
   public String getDescription() {
     return description;
   }
-
-  @JsonCreator
-  public static AdapterType fromString(JsonNode json) {
-    return AdapterType.valueOf(json.get("code").asText());
-  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/ApplicationLink.java b/streampipes-model/src/main/java/org/apache/streampipes/model/ApplicationLink.java
index 24340b1e1..08fec232f 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/ApplicationLink.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/ApplicationLink.java
@@ -22,73 +22,74 @@ import org.apache.streampipes.model.base.UnnamedStreamPipesEntity;
 
 public class ApplicationLink extends UnnamedStreamPipesEntity {
 
-    private String applicationName;
+  private String applicationName;
 
-    private String applicationDescription;
+  private String applicationDescription;
 
-    private String applicationUrl;
+  private String applicationUrl;
 
-    private String applicationIconUrl;
+  private String applicationIconUrl;
 
-    private String applicationLinkType;
+  private String applicationLinkType;
 
-    public ApplicationLink() {
-        super();
-    }
+  public ApplicationLink() {
+    super();
+  }
 
-    public ApplicationLink(String applicationName, String applicationDescription, String applicationUrl, String applicationIconUrl) {
-        super();
-        this.applicationName = applicationName;
-        this.applicationDescription = applicationDescription;
-        this.applicationUrl = applicationUrl;
-        this.applicationIconUrl = applicationIconUrl;
-    }
+  public ApplicationLink(String applicationName, String applicationDescription, String applicationUrl,
+                         String applicationIconUrl) {
+    super();
+    this.applicationName = applicationName;
+    this.applicationDescription = applicationDescription;
+    this.applicationUrl = applicationUrl;
+    this.applicationIconUrl = applicationIconUrl;
+  }
 
-    public ApplicationLink(ApplicationLink other) {
-        super(other);
-        this.applicationName = other.getApplicationName();
-        this.applicationDescription = other.getApplicationDescription();
-        this.applicationUrl = other.getApplicationUrl();
-        this.applicationIconUrl = other.getApplicationIconUrl();
-    }
+  public ApplicationLink(ApplicationLink other) {
+    super(other);
+    this.applicationName = other.getApplicationName();
+    this.applicationDescription = other.getApplicationDescription();
+    this.applicationUrl = other.getApplicationUrl();
+    this.applicationIconUrl = other.getApplicationIconUrl();
+  }
 
-    public String getApplicationName() {
-        return applicationName;
-    }
+  public String getApplicationName() {
+    return applicationName;
+  }
 
-    public void setApplicationName(String applicationName) {
-        this.applicationName = applicationName;
-    }
+  public void setApplicationName(String applicationName) {
+    this.applicationName = applicationName;
+  }
 
-    public String getApplicationDescription() {
-        return applicationDescription;
-    }
+  public String getApplicationDescription() {
+    return applicationDescription;
+  }
 
-    public void setApplicationDescription(String applicationDescription) {
-        this.applicationDescription = applicationDescription;
-    }
+  public void setApplicationDescription(String applicationDescription) {
+    this.applicationDescription = applicationDescription;
+  }
 
-    public String getApplicationUrl() {
-        return applicationUrl;
-    }
+  public String getApplicationUrl() {
+    return applicationUrl;
+  }
 
-    public void setApplicationUrl(String applicationUrl) {
-        this.applicationUrl = applicationUrl;
-    }
+  public void setApplicationUrl(String applicationUrl) {
+    this.applicationUrl = applicationUrl;
+  }
 
-    public String getApplicationIconUrl() {
-        return applicationIconUrl;
-    }
+  public String getApplicationIconUrl() {
+    return applicationIconUrl;
+  }
 
-    public void setApplicationIconUrl(String applicationIconUrl) {
-        this.applicationIconUrl = applicationIconUrl;
-    }
+  public void setApplicationIconUrl(String applicationIconUrl) {
+    this.applicationIconUrl = applicationIconUrl;
+  }
 
-    public String getApplicationLinkType() {
-        return applicationLinkType;
-    }
+  public String getApplicationLinkType() {
+    return applicationLinkType;
+  }
 
-    public void setApplicationLinkType(String applicationLinkType) {
-        this.applicationLinkType = applicationLinkType;
-    }
+  public void setApplicationLinkType(String applicationLinkType) {
+    this.applicationLinkType = applicationLinkType;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/DataProcessorType.java b/streampipes-model/src/main/java/org/apache/streampipes/model/DataProcessorType.java
index cef2fcc98..7dc650636 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/DataProcessorType.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/DataProcessorType.java
@@ -18,55 +18,56 @@
 
 package org.apache.streampipes.model;
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.databind.JsonNode;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 @TsModel
 @JsonFormat(shape = JsonFormat.Shape.OBJECT)
 public enum DataProcessorType {
 
-	FILTER("Filters and Thresholds", "b"),
-	BOOLEAN_OPERATOR("Boolean Operators", ""),
-	STRING_OPERATOR("Text/String Operators", ""),
-	COUNT_OPERATOR("Count Operators", ""),
-	AGGREGATE("Aggregation", ""),
-	ENRICH_TEXT("Text/NLP Operators", ""),
-	ENRICH("Enrichment", ""),
-	GEO("Geospatial Operations", ""),
-	IMAGE_PROCESSING("Image Processing", ""),
-	PATTERN_DETECT("Pattern Detection", ""),
-	ALGORITHM("Algorithm", ""),
-	VALUE_OBSERVER("Value Observation", ""),
-	STRUCTURE_ANALYTICS("Structure/Stream Analytics", ""),
-	TRANSFORM("Transformation", ""),
-	TIME("Time Operators", ""),
-	SCRIPTING("Scripting/Code", ""),
-	UNCATEGORIZED("Uncategorized", "");
-	
-	private String label;
-	private String description;
-	
-	DataProcessorType(String label, String description) {
-		this.label = label;
-		this.description = description;
-	}
+  FILTER("Filters and Thresholds", "b"),
+  BOOLEAN_OPERATOR("Boolean Operators", ""),
+  STRING_OPERATOR("Text/String Operators", ""),
+  COUNT_OPERATOR("Count Operators", ""),
+  AGGREGATE("Aggregation", ""),
+  ENRICH_TEXT("Text/NLP Operators", ""),
+  ENRICH("Enrichment", ""),
+  GEO("Geospatial Operations", ""),
+  IMAGE_PROCESSING("Image Processing", ""),
+  PATTERN_DETECT("Pattern Detection", ""),
+  ALGORITHM("Algorithm", ""),
+  VALUE_OBSERVER("Value Observation", ""),
+  STRUCTURE_ANALYTICS("Structure/Stream Analytics", ""),
+  TRANSFORM("Transformation", ""),
+  TIME("Time Operators", ""),
+  SCRIPTING("Scripting/Code", ""),
+  UNCATEGORIZED("Uncategorized", "");
+
+  private String label;
+  private String description;
+
+  DataProcessorType(String label, String description) {
+    this.label = label;
+    this.description = description;
+  }
 
-	public String getCode() {
-		return this.name();
-	}
+  @JsonCreator
+  public static AdapterType fromString(JsonNode json) {
+    return AdapterType.valueOf(json.get("code").asText());
+  }
 
-	public String getLabel() {
-		return label;
-	}
+  public String getCode() {
+    return this.name();
+  }
 
-	public String getDescription() {
-		return description;
-	}
+  public String getLabel() {
+    return label;
+  }
 
-	@JsonCreator
-	public static AdapterType fromString(JsonNode json) {
-		return AdapterType.valueOf(json.get("code").asText());
-	}
+  public String getDescription() {
+    return description;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/DataSinkType.java b/streampipes-model/src/main/java/org/apache/streampipes/model/DataSinkType.java
index 482d27aea..64b6417b3 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/DataSinkType.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/DataSinkType.java
@@ -18,10 +18,11 @@
 
 package org.apache.streampipes.model;
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.databind.JsonNode;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 @TsModel
 @JsonFormat(shape = JsonFormat.Shape.OBJECT)
@@ -46,6 +47,11 @@ public enum DataSinkType {
     this.description = description;
   }
 
+  @JsonCreator
+  public static AdapterType fromString(JsonNode json) {
+    return AdapterType.valueOf(json.get("code").asText());
+  }
+
   public String getCode() {
     return this.name();
   }
@@ -57,9 +63,4 @@ public enum DataSinkType {
   public String getDescription() {
     return description;
   }
-
-  @JsonCreator
-  public static AdapterType fromString(JsonNode json) {
-    return AdapterType.valueOf(json.get("code").asText());
-  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/NotificationCount.java b/streampipes-model/src/main/java/org/apache/streampipes/model/NotificationCount.java
index 90986abc8..50748eb63 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/NotificationCount.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/NotificationCount.java
@@ -1,19 +1,21 @@
 /*
- *   Licensed to the Apache Software Foundation (ASF) under one or more
- *   contributor license agreements.  See the NOTICE file distributed with
- *   this work for additional information regarding copyright ownership.
- *   The ASF licenses this file to You under the Apache License, Version 2.0
- *   (the "License"); you may not use this file except in compliance with
- *   the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
  */
+
 package org.apache.streampipes.model;
 
 public class NotificationCount {
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/Response.java b/streampipes-model/src/main/java/org/apache/streampipes/model/Response.java
index c1a8fa00d..de4feeb23 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/Response.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/Response.java
@@ -20,80 +20,85 @@ package org.apache.streampipes.model;
 
 public class Response {
 
-	private Boolean success;
-	private String elementId;
-	private String optionalMessage;
-
-	public Response() {
-
-	}
-	
-	public Response(String elementId, boolean success)
-	{
-        this(elementId, success, "");
-	}
-	
-	public Response(String elementId, boolean success, String optionalMessage)
-	{
-		this.elementId = elementId;
-		this.success = success;
-		this.optionalMessage = optionalMessage;
-	}
-
-	public Boolean isSuccess() {
-		return success;
-	}
-
-	public String getElementId() {
-		return elementId;
-	}
-
-	public String getOptionalMessage() {
-		return optionalMessage;
-	}
-
-	public void setSuccess(Boolean success) {
-		this.success = success;
-	}
-
-	public void setElementId(String elementId) {
-		this.elementId = elementId;
-	}
-
-	public void setOptionalMessage(String optionalMessage) {
-		this.optionalMessage = optionalMessage;
-	}
-
-	@Override
-	public int hashCode() {
-		final int prime = 31;
-		int result = 1;
-		result = prime * result + ((elementId == null) ? 0 : elementId.hashCode());
-		result = prime * result + ((optionalMessage == null) ? 0 : optionalMessage.hashCode());
-		result = prime * result + (success ? 1231 : 1237);
-		return result;
-	}
-
-	@Override
-	public boolean equals(Object obj) {
-		if (this == obj)
-			return true;
-		if (obj == null)
-			return false;
-		if (getClass() != obj.getClass())
-			return false;
-		Response other = (Response) obj;
-		if (elementId == null) {
-			if (other.elementId != null)
-				return false;
-		} else if (!elementId.equals(other.elementId))
-			return false;
-		if (optionalMessage == null) {
-			if (other.optionalMessage != null)
-				return false;
-		} else if (!optionalMessage.equals(other.optionalMessage))
-			return false;
-		return success == other.success;
-	}
+  private Boolean success;
+  private String elementId;
+  private String optionalMessage;
+
+  public Response() {
+
+  }
+
+  public Response(String elementId, boolean success) {
+    this(elementId, success, "");
+  }
+
+  public Response(String elementId, boolean success, String optionalMessage) {
+    this.elementId = elementId;
+    this.success = success;
+    this.optionalMessage = optionalMessage;
+  }
+
+  public Boolean isSuccess() {
+    return success;
+  }
+
+  public String getElementId() {
+    return elementId;
+  }
+
+  public void setElementId(String elementId) {
+    this.elementId = elementId;
+  }
+
+  public String getOptionalMessage() {
+    return optionalMessage;
+  }
+
+  public void setOptionalMessage(String optionalMessage) {
+    this.optionalMessage = optionalMessage;
+  }
+
+  public void setSuccess(Boolean success) {
+    this.success = success;
+  }
+
+  @Override
+  public int hashCode() {
+    final int prime = 31;
+    int result = 1;
+    result = prime * result + ((elementId == null) ? 0 : elementId.hashCode());
+    result = prime * result + ((optionalMessage == null) ? 0 : optionalMessage.hashCode());
+    result = prime * result + (success ? 1231 : 1237);
+    return result;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (this == obj) {
+      return true;
+    }
+    if (obj == null) {
+      return false;
+    }
+    if (getClass() != obj.getClass()) {
+      return false;
+    }
+    Response other = (Response) obj;
+    if (elementId == null) {
+      if (other.elementId != null) {
+        return false;
+      }
+    } else if (!elementId.equals(other.elementId)) {
+      return false;
+    }
+    if (optionalMessage == null) {
+      if (other.optionalMessage != null) {
+        return false;
+      }
+    } else if (!optionalMessage.equals(other.optionalMessage)) {
+      return false;
+    }
+    return success == other.success;
+  }
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataSet.java b/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataSet.java
index 3bbf25c1a..c997d8219 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataSet.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataSet.java
@@ -33,14 +33,13 @@ public class SpDataSet extends SpDataStream {
   private String selectedEndpointUrl;
 
   public SpDataSet(String uri, String name, String description, String iconUrl, List<EventStreamQualityDefinition>
-          hasEventStreamQualities,
+      hasEventStreamQualities,
                    EventGrounding eventGrounding,
                    EventSchema eventSchema) {
     super(uri, name, description, iconUrl, hasEventStreamQualities, eventGrounding, eventSchema);
   }
 
-  public SpDataSet(String uri, String name, String description, EventSchema eventSchema)
-  {
+  public SpDataSet(String uri, String name, String description, EventSchema eventSchema) {
     super(uri, name, description, eventSchema);
   }
 
@@ -52,12 +51,14 @@ public class SpDataSet extends SpDataStream {
   public SpDataSet(SpDataSet other) {
     super(other);
     this.datasetInvocationId = other.getDatasetInvocationId();
-    if (other.getSupportedGrounding() != null) this.supportedGrounding = new EventGrounding(other.getSupportedGrounding());
+    if (other.getSupportedGrounding() != null) {
+      this.supportedGrounding = new EventGrounding(other.getSupportedGrounding());
+    }
   }
 
   public String getBrokerHostname() {
-    if (getEventGrounding() == null || getEventGrounding().getTransportProtocol() == null ||
-            getEventGrounding().getTransportProtocol().getBrokerHostname() == null) {
+    if (getEventGrounding() == null || getEventGrounding().getTransportProtocol() == null
+        || getEventGrounding().getTransportProtocol().getBrokerHostname() == null) {
       return "";
     } else {
       return getEventGrounding().getTransportProtocol().getBrokerHostname();
@@ -65,12 +66,11 @@ public class SpDataSet extends SpDataStream {
   }
 
   public String getActualTopicName() {
-    if (getEventGrounding() == null || getEventGrounding().getTransportProtocol() == null ||
-            getEventGrounding().getTransportProtocol().getTopicDefinition() == null) {
+    if (getEventGrounding() == null || getEventGrounding().getTransportProtocol() == null
+        || getEventGrounding().getTransportProtocol().getTopicDefinition() == null) {
       return "";
     } else {
-      return getEventGrounding().getTransportProtocol().getTopicDefinition()
-              .getActualTopicName();
+      return getEventGrounding().getTransportProtocol().getTopicDefinition().getActualTopicName();
     }
   }
 
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataStream.java b/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataStream.java
index 2205c3abe..5aed03ccf 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataStream.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataStream.java
@@ -18,8 +18,6 @@
 
 package org.apache.streampipes.model;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
-import org.apache.commons.lang3.RandomStringUtils;
 import org.apache.streampipes.model.base.NamedStreamPipesEntity;
 import org.apache.streampipes.model.grounding.EventGrounding;
 import org.apache.streampipes.model.quality.EventStreamQualityDefinition;
@@ -29,13 +27,16 @@ import org.apache.streampipes.model.quality.MeasurementObject;
 import org.apache.streampipes.model.schema.EventSchema;
 import org.apache.streampipes.model.util.Cloner;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import org.apache.commons.lang3.RandomStringUtils;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Collectors;
 
 @JsonSubTypes({
-        @JsonSubTypes.Type(SpDataStream.class),
-        @JsonSubTypes.Type(SpDataSet.class)
+    @JsonSubTypes.Type(SpDataStream.class),
+    @JsonSubTypes.Type(SpDataSet.class)
 })
 public class SpDataStream extends NamedStreamPipesEntity {
 
@@ -54,14 +55,12 @@ public class SpDataStream extends NamedStreamPipesEntity {
   protected List<MeasurementCapability> measurementCapability;
 
   protected List<MeasurementObject> measurementObject;
-
+  protected List<String> category;
   private int index;
-
   private String correspondingAdapterId;
 
-  protected List<String> category;
-
-  public SpDataStream(String uri, String name, String description, String iconUrl, List<EventStreamQualityDefinition> hasEventStreamQualities,
+  public SpDataStream(String uri, String name, String description, String iconUrl,
+                      List<EventStreamQualityDefinition> hasEventStreamQualities,
                       EventGrounding eventGrounding,
                       EventSchema eventSchema) {
     super(uri, name, description, iconUrl);
@@ -92,10 +91,13 @@ public class SpDataStream extends NamedStreamPipesEntity {
       this.eventSchema = new EventSchema(other.getEventSchema());
     }
     if (other.getHasEventStreamQualities() != null) {
-      this.hasEventStreamQualities = other.getHasEventStreamQualities().stream().map(EventStreamQualityDefinition::new).collect(Collectors.toCollection(ArrayList::new));
+      this.hasEventStreamQualities = other.getHasEventStreamQualities().stream().map(EventStreamQualityDefinition::new)
+          .collect(Collectors.toCollection(ArrayList::new));
     }
     if (other.getRequiresEventStreamQualities() != null) {
-      this.requiresEventStreamQualities = other.getRequiresEventStreamQualities().stream().map(EventStreamQualityRequirement::new).collect(Collectors.toCollection(ArrayList::new));
+      this.requiresEventStreamQualities =
+          other.getRequiresEventStreamQualities().stream().map(EventStreamQualityRequirement::new)
+              .collect(Collectors.toCollection(ArrayList::new));
     }
     if (other.getMeasurementCapability() != null) {
       this.measurementCapability = new Cloner().mc(other.getMeasurementCapability());
@@ -110,7 +112,7 @@ public class SpDataStream extends NamedStreamPipesEntity {
   }
 
   public void setHasEventStreamQualities(
-          List<EventStreamQualityDefinition> hasEventStreamQualities) {
+      List<EventStreamQualityDefinition> hasEventStreamQualities) {
     this.hasEventStreamQualities = hasEventStreamQualities;
   }
 
@@ -120,7 +122,7 @@ public class SpDataStream extends NamedStreamPipesEntity {
   }
 
   public void setRequiresEventStreamQualities(
-          List<EventStreamQualityRequirement> requiresEventStreamQualities) {
+      List<EventStreamQualityRequirement> requiresEventStreamQualities) {
     this.requiresEventStreamQualities = requiresEventStreamQualities;
   }
 
@@ -145,7 +147,7 @@ public class SpDataStream extends NamedStreamPipesEntity {
   }
 
   public void setMeasurementCapability(
-          List<MeasurementCapability> measurementCapability) {
+      List<MeasurementCapability> measurementCapability) {
     this.measurementCapability = measurementCapability;
   }
 
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataStreamContainer.java b/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataStreamContainer.java
index 93bf310af..075f303f9 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataStreamContainer.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/SpDataStreamContainer.java
@@ -27,8 +27,8 @@ public class SpDataStreamContainer extends UnnamedStreamPipesEntity {
   private List<SpDataStream> list;
 
   public SpDataStreamContainer() {
-      super();
-      this.list = new ArrayList<>();
+    super();
+    this.list = new ArrayList<>();
   }
 
   public SpDataStreamContainer(List<SpDataStream> dataStreams) {
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/StreamPipesErrorMessage.java b/streampipes-model/src/main/java/org/apache/streampipes/model/StreamPipesErrorMessage.java
index aa25b5bc2..a52ee29e3 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/StreamPipesErrorMessage.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/StreamPipesErrorMessage.java
@@ -18,9 +18,10 @@
 
 package org.apache.streampipes.model;
 
-import org.apache.commons.lang3.exception.ExceptionUtils;
 import org.apache.streampipes.model.shared.annotation.TsModel;
 
+import org.apache.commons.lang3.exception.ExceptionUtils;
+
 @TsModel
 public class StreamPipesErrorMessage {
 
@@ -31,16 +32,6 @@ public class StreamPipesErrorMessage {
   private String cause;
   private String fullStackTrace;
 
-  public static StreamPipesErrorMessage from(Exception exception) {
-    String cause = exception.getCause() != null ? exception.getCause().getMessage() : exception.getMessage();
-    return new StreamPipesErrorMessage(
-      "error",
-      exception.getMessage(),
-      "",
-      ExceptionUtils.getStackTrace(exception),
-      cause);
-  }
-
   public StreamPipesErrorMessage() {
 
   }
@@ -65,6 +56,16 @@ public class StreamPipesErrorMessage {
     this.cause = cause;
   }
 
+  public static StreamPipesErrorMessage from(Exception exception) {
+    String cause = exception.getCause() != null ? exception.getCause().getMessage() : exception.getMessage();
+    return new StreamPipesErrorMessage(
+        "error",
+        exception.getMessage(),
+        "",
+        ExceptionUtils.getStackTrace(exception),
+        cause);
+  }
+
   public String getLevel() {
     return level;
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/Tuple2.java b/streampipes-model/src/main/java/org/apache/streampipes/model/Tuple2.java
index 11b783f05..ef5fe5b17 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/Tuple2.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/Tuple2.java
@@ -17,30 +17,36 @@
  */
 package org.apache.streampipes.model;
 
-public class Tuple2<A, B> {
+public class Tuple2<K, V> {
 
-  public final A a;
-  public final B b;
+  public final K k;
+  public final V v;
 
-  public Tuple2(A a, B b) {
-    this.a = a;
-    this.b = b;
+  public Tuple2(K k, V v) {
+    this.k = k;
+    this.v = v;
   }
 
   @Override
   public boolean equals(Object o) {
-    if (this == o) return true;
-    if (o == null || getClass() != o.getClass()) return false;
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
 
     Tuple2<?, ?> tuple = (Tuple2<?, ?>) o;
-    if (!a.equals(tuple.a)) return false;
-    return b.equals(tuple.b);
+    if (!k.equals(tuple.k)) {
+      return false;
+    }
+    return v.equals(tuple.v);
   }
 
   @Override
   public int hashCode() {
-    int result = a.hashCode();
-    result = 31 * result + b.hashCode();
+    int result = k.hashCode();
+    result = 31 * result + v.hashCode();
     return result;
   }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/VirtualSensor.java b/streampipes-model/src/main/java/org/apache/streampipes/model/VirtualSensor.java
index 177cdb3cb..0034a96f8 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/VirtualSensor.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/VirtualSensor.java
@@ -22,31 +22,29 @@ import org.apache.streampipes.model.pipeline.ElementComposition;
 
 public class VirtualSensor extends ElementComposition {
 
-	protected String createdBy;
-	
-	protected int outputIndex;
-	
-	public VirtualSensor()
-	{
-		super();
-	}
-
-	public String getCreatedBy() {
-		return createdBy;
-	}
-
-	public void setCreatedBy(String createdBy) {
-		this.createdBy = createdBy;
-	}
-
-	public int getOutputIndex() {
-		return outputIndex;
-	}
-
-	public void setOutputIndex(int outputIndex) {
-		this.outputIndex = outputIndex;
-	}
-	
-	
-	
+  protected String createdBy;
+
+  protected int outputIndex;
+
+  public VirtualSensor() {
+    super();
+  }
+
+  public String getCreatedBy() {
+    return createdBy;
+  }
+
+  public void setCreatedBy(String createdBy) {
+    this.createdBy = createdBy;
+  }
+
+  public int getOutputIndex() {
+    return outputIndex;
+  }
+
+  public void setOutputIndex(int outputIndex) {
+    this.outputIndex = outputIndex;
+  }
+
+
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/assets/AssetLink.java b/streampipes-model/src/main/java/org/apache/streampipes/model/assets/AssetLink.java
index 74d15f002..3617dc52f 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/assets/AssetLink.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/assets/AssetLink.java
@@ -73,8 +73,12 @@ public class AssetLink {
 
   @Override
   public boolean equals(Object o) {
-    if (this == o) return true;
-    if (o == null || getClass() != o.getClass()) return false;
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
     AssetLink assetLink = (AssetLink) o;
     return resourceId.equals(assetLink.resourceId) && queryHint.equals(assetLink.queryHint);
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/assets/AssetLinkType.java b/streampipes-model/src/main/java/org/apache/streampipes/model/assets/AssetLinkType.java
index 79d6c2687..f2b045e97 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/assets/AssetLinkType.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/assets/AssetLinkType.java
@@ -18,9 +18,10 @@
 
 package org.apache.streampipes.model.assets;
 
+import org.apache.streampipes.commons.constants.GenericDocTypes;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.commons.constants.GenericDocTypes;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/assets/SpAssetModel.java b/streampipes-model/src/main/java/org/apache/streampipes/model/assets/SpAssetModel.java
index 99787aa0b..0140eafdf 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/assets/SpAssetModel.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/assets/SpAssetModel.java
@@ -18,13 +18,14 @@
 
 package org.apache.streampipes.model.assets;
 
+import org.apache.streampipes.commons.constants.GenericDocTypes;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.commons.constants.GenericDocTypes;
 
 public class SpAssetModel extends SpAsset {
 
-  public static final String appDocType = GenericDocTypes.DOC_ASSET_MANGEMENT;
+  public static final String APP_DOC_TYPE = GenericDocTypes.DOC_ASSET_MANGEMENT;
 
   @JsonProperty("_id")
   private @SerializedName("_id") String id;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/base/AbstractStreamPipesEntity.java b/streampipes-model/src/main/java/org/apache/streampipes/model/base/AbstractStreamPipesEntity.java
index d73a47642..0c1165d78 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/base/AbstractStreamPipesEntity.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/base/AbstractStreamPipesEntity.java
@@ -19,9 +19,10 @@
 package org.apache.streampipes.model.base;
 
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 import java.io.Serializable;
 import java.util.Objects;
@@ -31,36 +32,40 @@ import java.util.Objects;
  * top-level StreamPipes element
  */
 
-@JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, property="@class")
+@JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, property = "@class")
 @TsModel
 public class AbstractStreamPipesEntity implements Serializable {
 
-	private static final long serialVersionUID = -8593749314663582071L;
+  private static final long serialVersionUID = -8593749314663582071L;
 
-	protected @SerializedName("_id") String elementId;
+  protected @SerializedName("_id") String elementId;
 
-	AbstractStreamPipesEntity() {
+  AbstractStreamPipesEntity() {
 
-	}
+  }
 
-	AbstractStreamPipesEntity(AbstractStreamPipesEntity other) {
-		this.elementId = other.getElementId();
-	}
+  AbstractStreamPipesEntity(AbstractStreamPipesEntity other) {
+    this.elementId = other.getElementId();
+  }
 
-	public String getElementId() {
-		return elementId;
-	}
+  public String getElementId() {
+    return elementId;
+  }
 
-	public void setElementId(String elementId) {
-		this.elementId = elementId;
-	}
+  public void setElementId(String elementId) {
+    this.elementId = elementId;
+  }
 
-	@Override
-	public boolean equals(Object o) {
-		if (this == o) return true;
-		if (o == null || getClass() != o.getClass()) return false;
-		AbstractStreamPipesEntity that = (AbstractStreamPipesEntity) o;
-		return Objects.equals(elementId, that.elementId);
-	}
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    AbstractStreamPipesEntity that = (AbstractStreamPipesEntity) o;
+    return Objects.equals(elementId, that.elementId);
+  }
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/base/InvocableStreamPipesEntity.java b/streampipes-model/src/main/java/org/apache/streampipes/model/base/InvocableStreamPipesEntity.java
index e4a75171e..3a87cc5ba 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/base/InvocableStreamPipesEntity.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/base/InvocableStreamPipesEntity.java
@@ -73,7 +73,7 @@ public abstract class InvocableStreamPipesEntity extends NamedStreamPipesEntity
     if (other.getStaticProperties() != null) {
       this.staticProperties = new Cloner().staticProperties(other.getStaticProperties());
     }
-    this.DOM = other.getDOM();
+    this.dom = other.getDom();
     if (other.getSupportedGrounding() != null) {
       this.supportedGrounding = new EventGrounding(other.getSupportedGrounding());
     }
@@ -178,7 +178,7 @@ public abstract class InvocableStreamPipesEntity extends NamedStreamPipesEntity
 
   //public Logger getLogger(Class clazz, PeConfig peConfig) {
   public Logger getLogger(Class clazz) {
-    //	return LoggerFactory.getPeLogger(clazz, getCorrespondingPipeline(), getUri(), peConfig);
+    //return LoggerFactory.getPeLogger(clazz, getCorrespondingPipeline(), getUri(), peConfig);
     return LoggerFactory.getPeLogger(clazz, getCorrespondingPipeline(), getUri());
   }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/base/NamedStreamPipesEntity.java b/streampipes-model/src/main/java/org/apache/streampipes/model/base/NamedStreamPipesEntity.java
index b714d5985..7d6aedfd3 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/base/NamedStreamPipesEntity.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/base/NamedStreamPipesEntity.java
@@ -19,11 +19,12 @@
 package org.apache.streampipes.model.base;
 
 
-import com.fasterxml.jackson.annotation.JsonProperty;
-import com.google.gson.annotations.SerializedName;
 import org.apache.streampipes.model.ApplicationLink;
 import org.apache.streampipes.model.util.Cloner;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.gson.annotations.SerializedName;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -36,30 +37,19 @@ public abstract class NamedStreamPipesEntity extends AbstractStreamPipesEntity {
 
   @JsonProperty("_rev")
   protected @SerializedName("_rev") String rev;
-
+  protected String dom;
+  protected List<String> connectedTo;
   private String name;
-
   private String description;
-
   private String iconUrl;
-
   private String appId;
-
   private boolean includesAssets;
-
   private boolean includesLocales;
-
   private List<String> includedAssets;
-
   private List<String> includedLocales;
-
   private List<ApplicationLink> applicationLinks;
-
   private boolean internallyManaged;
 
-  protected String DOM;
-  protected List<String> connectedTo;
-
 
   public NamedStreamPipesEntity() {
     super();
@@ -95,7 +85,7 @@ public abstract class NamedStreamPipesEntity extends AbstractStreamPipesEntity {
     this.name = other.getName();
     this.iconUrl = other.getIconUrl();
     this.elementId = other.getElementId();
-    this.DOM = other.getDOM();
+    this.dom = other.getDom();
     this.internallyManaged = other.isInternallyManaged();
     this.connectedTo = other.getConnectedTo();
     if (other.getApplicationLinks() != null) {
@@ -146,12 +136,12 @@ public abstract class NamedStreamPipesEntity extends AbstractStreamPipesEntity {
     this.elementId = uri;
   }
 
-  public void setDOM(String DOM) {
-    this.DOM = DOM;
+  public String getDom() {
+    return dom;
   }
 
-  public String getDOM() {
-    return DOM;
+  public void setDom(String dom) {
+    this.dom = dom;
   }
 
   public List<String> getConnectedTo() {
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/canvas/PipelineCanvasMetadata.java b/streampipes-model/src/main/java/org/apache/streampipes/model/canvas/PipelineCanvasMetadata.java
index d22c9be92..c110f4a6d 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/canvas/PipelineCanvasMetadata.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/canvas/PipelineCanvasMetadata.java
@@ -17,9 +17,10 @@
  */
 package org.apache.streampipes.model.canvas;
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 import java.util.List;
 import java.util.Map;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterDescription.java
index 613730ca4..efbcb7e1c 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterDescription.java
@@ -18,7 +18,6 @@
 
 package org.apache.streampipes.model.connect.adapter;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
 import org.apache.streampipes.model.base.NamedStreamPipesEntity;
 import org.apache.streampipes.model.connect.rules.TransformationRuleDescription;
 import org.apache.streampipes.model.connect.rules.schema.SchemaTransformationRuleDescription;
@@ -35,6 +34,8 @@ import org.apache.streampipes.model.shared.annotation.TsModel;
 import org.apache.streampipes.model.staticproperty.StaticProperty;
 import org.apache.streampipes.model.util.Cloner;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -143,14 +144,14 @@ public abstract class AdapterDescription extends NamedStreamPipesEntity {
     return config;
   }
 
-  public void addConfig(StaticProperty sp) {
-    this.config.add(sp);
-  }
-
   public void setConfig(List<StaticProperty> config) {
     this.config = config;
   }
 
+  public void addConfig(StaticProperty sp) {
+    this.config.add(sp);
+  }
+
   public String getAdapterType() {
     return adapterType;
   }
@@ -207,10 +208,7 @@ public abstract class AdapterDescription extends NamedStreamPipesEntity {
 
   @Override
   public String toString() {
-    return "AdapterDescription{"
-        + ", elementId='" + elementId + '\''
-        + ", DOM='" + DOM + '\''
-        + '}';
+    return String.format("AdapterDescription{elementId= '%s', DOM= '%s'}", elementId, dom);
   }
 
   public long getCreatedAt() {
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterSetDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterSetDescription.java
index 6d83ba869..1239c2cf9 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterSetDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterSetDescription.java
@@ -18,37 +18,40 @@
 
 package org.apache.streampipes.model.connect.adapter;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
 import org.apache.streampipes.model.SpDataSet;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 @JsonSubTypes({
-        @JsonSubTypes.Type(GenericAdapterSetDescription.class),
-        @JsonSubTypes.Type(SpecificAdapterSetDescription.class)
+    @JsonSubTypes.Type(GenericAdapterSetDescription.class),
+    @JsonSubTypes.Type(SpecificAdapterSetDescription.class)
 })
 public abstract class AdapterSetDescription extends AdapterDescription {
 
-    public AdapterSetDescription() {
-        this.dataSet = new SpDataSet();
-    }
+  private SpDataSet dataSet;
 
-    public AdapterSetDescription(String uri, String name, String description) {
-        super(uri, name, description);
-        this.dataSet = new SpDataSet();
-    }
+  public AdapterSetDescription() {
+    this.dataSet = new SpDataSet();
+  }
 
-    public AdapterSetDescription(AdapterSetDescription other) {
-        super(other);
-        if (other.getDataSet() != null) this.setDataSet(new SpDataSet(other.getDataSet()));
-    }
-
-    private SpDataSet dataSet;
+  public AdapterSetDescription(String uri, String name, String description) {
+    super(uri, name, description);
+    this.dataSet = new SpDataSet();
+  }
 
-    public SpDataSet getDataSet() {
-        return dataSet;
+  public AdapterSetDescription(AdapterSetDescription other) {
+    super(other);
+    if (other.getDataSet() != null) {
+      this.setDataSet(new SpDataSet(other.getDataSet()));
     }
+  }
 
-    public void setDataSet(SpDataSet dataSet) {
-        this.dataSet = dataSet;
-    }
+  public SpDataSet getDataSet() {
+    return dataSet;
+  }
+
+  public void setDataSet(SpDataSet dataSet) {
+    this.dataSet = dataSet;
+  }
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterStreamDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterStreamDescription.java
index 0598ad86f..c047a69c9 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterStreamDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/AdapterStreamDescription.java
@@ -17,50 +17,52 @@
  */
 
 package org.apache.streampipes.model.connect.adapter;
-import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 import org.apache.streampipes.model.SpDataStream;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 @JsonSubTypes({
-        @JsonSubTypes.Type(SpecificAdapterStreamDescription.class),
-        @JsonSubTypes.Type(SpecificAdapterStreamDescription.class)
+    @JsonSubTypes.Type(SpecificAdapterStreamDescription.class),
+    @JsonSubTypes.Type(SpecificAdapterStreamDescription.class)
 })
 public abstract class AdapterStreamDescription extends AdapterDescription {
 
-    private SpDataStream dataStream;
+  private SpDataStream dataStream;
 
-    private boolean running;
+  private boolean running;
 
-    public AdapterStreamDescription() {
-        super();
-        this.dataStream = new SpDataStream();
-    }
+  public AdapterStreamDescription() {
+    super();
+    this.dataStream = new SpDataStream();
+  }
 
-    public AdapterStreamDescription(String elementId, String name, String description) {
-        super(elementId, name, description);
-        this.dataStream = new SpDataStream();
-    }
+  public AdapterStreamDescription(String elementId, String name, String description) {
+    super(elementId, name, description);
+    this.dataStream = new SpDataStream();
+  }
 
-    public AdapterStreamDescription(AdapterStreamDescription other) {
-        super(other);
-        this.running = other.isRunning();
-        if (other.getDataStream() != null) {
-            this.dataStream = new SpDataStream(other.getDataStream());
-        }
+  public AdapterStreamDescription(AdapterStreamDescription other) {
+    super(other);
+    this.running = other.isRunning();
+    if (other.getDataStream() != null) {
+      this.dataStream = new SpDataStream(other.getDataStream());
     }
+  }
 
-    public SpDataStream getDataStream() {
-        return dataStream;
-    }
+  public SpDataStream getDataStream() {
+    return dataStream;
+  }
 
-    public void setDataStream(SpDataStream dataStream) {
-        this.dataStream = dataStream;
-    }
+  public void setDataStream(SpDataStream dataStream) {
+    this.dataStream = dataStream;
+  }
 
-    public boolean isRunning() {
-        return running;
-    }
+  public boolean isRunning() {
+    return running;
+  }
 
-    public void setRunning(boolean running) {
-        this.running = running;
-    }
+  public void setRunning(boolean running) {
+    this.running = running;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterDescription.java
index 3d4699fb5..7468b79fa 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterDescription.java
@@ -27,13 +27,13 @@ import java.util.List;
 
 public interface GenericAdapterDescription {
 
-    ProtocolDescription getProtocolDescription();
+  ProtocolDescription getProtocolDescription();
 
-    FormatDescription getFormatDescription();
+  FormatDescription getFormatDescription();
 
-    List<TransformationRuleDescription> getRules();
+  List<TransformationRuleDescription> getRules();
 
-    EventSchema getEventSchema();
+  EventSchema getEventSchema();
 
 }
 
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterSetDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterSetDescription.java
index a26cfd24b..0779f7ae1 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterSetDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterSetDescription.java
@@ -28,55 +28,59 @@ import org.apache.streampipes.model.util.ElementIdGenerator;
 @TsModel
 public class GenericAdapterSetDescription extends AdapterSetDescription implements GenericAdapterDescription {
 
-    public static final String ID = ElementIdGenerator.makeFixedElementId(GenericAdapterSetDescription.class);
+  public static final String ID = ElementIdGenerator.makeFixedElementId(GenericAdapterSetDescription.class);
 
 //    private String sourceType = "org.apache.streampipes.model.connect.adapter.GenericAdapterSetDescription";
 
-    private FormatDescription formatDescription;
+  private FormatDescription formatDescription;
 
-    private ProtocolDescription protocolDescription;
+  private ProtocolDescription protocolDescription;
 
 
-    public GenericAdapterSetDescription() {
-        super(ID, "GenericAdapterSetDescription", "");
-    }
+  public GenericAdapterSetDescription() {
+    super(ID, "GenericAdapterSetDescription", "");
+  }
 
 
-    public GenericAdapterSetDescription(FormatDescription formatDescription, ProtocolSetDescription protocolDescription) {
-        this.formatDescription = formatDescription;
-        this.protocolDescription = protocolDescription;
-    }
+  public GenericAdapterSetDescription(FormatDescription formatDescription, ProtocolSetDescription protocolDescription) {
+    this.formatDescription = formatDescription;
+    this.protocolDescription = protocolDescription;
+  }
 
-    public GenericAdapterSetDescription(GenericAdapterSetDescription other) {
-        super(other);
+  public GenericAdapterSetDescription(GenericAdapterSetDescription other) {
+    super(other);
 
-        if (other.getFormatDescription() != null) this.formatDescription = new FormatDescription(other.getFormatDescription());
-        if (other.getProtocolDescription() != null) this.protocolDescription = new ProtocolSetDescription(other.getProtocolDescription());
+    if (other.getFormatDescription() != null) {
+      this.formatDescription = new FormatDescription(other.getFormatDescription());
     }
-
-    public FormatDescription getFormatDescription() {
-        return formatDescription;
+    if (other.getProtocolDescription() != null) {
+      this.protocolDescription = new ProtocolSetDescription(other.getProtocolDescription());
     }
+  }
 
-    @Override
-    public EventSchema getEventSchema() {
-        if (this.getDataSet() != null) {
-            return this.getDataSet().getEventSchema();
-        }
-        return null;
-    }
+  public FormatDescription getFormatDescription() {
+    return formatDescription;
+  }
 
-    public void setFormatDescription(FormatDescription formatDescription) {
-        this.formatDescription = formatDescription;
-    }
+  public void setFormatDescription(FormatDescription formatDescription) {
+    this.formatDescription = formatDescription;
+  }
 
-    public ProtocolDescription getProtocolDescription() {
-        return protocolDescription;
+  @Override
+  public EventSchema getEventSchema() {
+    if (this.getDataSet() != null) {
+      return this.getDataSet().getEventSchema();
     }
+    return null;
+  }
 
-    public void setProtocolDescription(ProtocolDescription protocolDescription) {
-        this.protocolDescription = protocolDescription;
-    }
+  public ProtocolDescription getProtocolDescription() {
+    return protocolDescription;
+  }
+
+  public void setProtocolDescription(ProtocolDescription protocolDescription) {
+    this.protocolDescription = protocolDescription;
+  }
 
 //    public String getSourceType() {
 //        return sourceType;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterStreamDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterStreamDescription.java
index b116caae0..67a88aa87 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterStreamDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/GenericAdapterStreamDescription.java
@@ -47,18 +47,22 @@ public class GenericAdapterStreamDescription extends AdapterStreamDescription im
   public GenericAdapterStreamDescription(GenericAdapterStreamDescription other) {
     super(other);
 
-      if (other.getFormatDescription() != null) {
-          this.formatDescription = new FormatDescription(other.getFormatDescription());
-      }
-      if (other.getProtocolDescription() != null) {
-          this.protocolDescription = new ProtocolStreamDescription(other.getProtocolDescription());
-      }
+    if (other.getFormatDescription() != null) {
+      this.formatDescription = new FormatDescription(other.getFormatDescription());
+    }
+    if (other.getProtocolDescription() != null) {
+      this.protocolDescription = new ProtocolStreamDescription(other.getProtocolDescription());
+    }
   }
 
   public FormatDescription getFormatDescription() {
     return formatDescription;
   }
 
+  public void setFormatDescription(FormatDescription formatDescription) {
+    this.formatDescription = formatDescription;
+  }
+
   @Override
   public EventSchema getEventSchema() {
     if (this.getDataStream() != null) {
@@ -67,10 +71,6 @@ public class GenericAdapterStreamDescription extends AdapterStreamDescription im
     return null;
   }
 
-  public void setFormatDescription(FormatDescription formatDescription) {
-    this.formatDescription = formatDescription;
-  }
-
   public ProtocolDescription getProtocolDescription() {
     return protocolDescription;
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/SpecificAdapterSetDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/SpecificAdapterSetDescription.java
index a3fb416fe..6052a85a3 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/SpecificAdapterSetDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/adapter/SpecificAdapterSetDescription.java
@@ -23,10 +23,10 @@ import org.apache.streampipes.model.shared.annotation.TsModel;
 @TsModel
 public class SpecificAdapterSetDescription extends AdapterSetDescription {
 
-    public SpecificAdapterSetDescription() {
-    }
+  public SpecificAdapterSetDescription() {
+  }
 
-    public SpecificAdapterSetDescription(AdapterSetDescription other) {
-        super(other);
-    }
+  public SpecificAdapterSetDescription(AdapterSetDescription other) {
+    super(other);
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/FormatDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/FormatDescription.java
index ba6bb4094..a63472521 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/FormatDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/FormatDescription.java
@@ -28,57 +28,55 @@ import java.util.List;
 
 public class FormatDescription extends NamedStreamPipesEntity {
 
-    private List<StaticProperty> config;
-
-    private String formatType = "";
-
-    public FormatDescription() {
-        super();
-        this.config = new ArrayList<>();
-    }
-
-    public FormatDescription(String uri, String name, String description) {
-        super(uri, name, description);
-        this.config = new ArrayList<>();
-    }
-
-    public FormatDescription(String uri, String name, String description, List<StaticProperty> config, String formatType) {
-        super(uri, name, description);
-        this.config = config;
-        this.formatType = formatType;
-    }
-
-    public FormatDescription(FormatDescription other) {
-        super(other);
-        this.config = new Cloner().staticProperties(other.getConfig());
-        this.formatType = other.getFormatType();
-    }
-
-    public void addConfig(StaticProperty sp) {
-        this.config.add(sp);
-    }
-
-    public List<StaticProperty> getConfig() {
-        return config;
-    }
-
-    public void setConfig(List<StaticProperty> config) {
-        this.config = config;
-    }
-
-    public String getFormatType() {
-        return formatType;
-    }
-
-    public void setFormatType(String formatType) {
-        this.formatType = formatType;
-    }
-
-    @Override
-    public String toString() {
-        return "FormatDescription{" +
-                "formatType=" + formatType +
-                "config=" + config +
-                '}';
-    }
+  private List<StaticProperty> config;
+
+  private String formatType = "";
+
+  public FormatDescription() {
+    super();
+    this.config = new ArrayList<>();
+  }
+
+  public FormatDescription(String uri, String name, String description) {
+    super(uri, name, description);
+    this.config = new ArrayList<>();
+  }
+
+  public FormatDescription(String uri, String name, String description, List<StaticProperty> config,
+                           String formatType) {
+    super(uri, name, description);
+    this.config = config;
+    this.formatType = formatType;
+  }
+
+  public FormatDescription(FormatDescription other) {
+    super(other);
+    this.config = new Cloner().staticProperties(other.getConfig());
+    this.formatType = other.getFormatType();
+  }
+
+  public void addConfig(StaticProperty sp) {
+    this.config.add(sp);
+  }
+
+  public List<StaticProperty> getConfig() {
+    return config;
+  }
+
+  public void setConfig(List<StaticProperty> config) {
+    this.config = config;
+  }
+
+  public String getFormatType() {
+    return formatType;
+  }
+
+  public void setFormatType(String formatType) {
+    this.formatType = formatType;
+  }
+
+  @Override
+  public String toString() {
+    return String.format("FormatDescription{formatType='%s', config='%s'}", formatType, config);
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolDescription.java
index c643aa3c3..fe3efc108 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolDescription.java
@@ -29,63 +29,63 @@ import java.util.List;
 @TsModel
 public class ProtocolDescription extends NamedStreamPipesEntity {
 
-    @Deprecated
-    String sourceType;
+  @Deprecated
+  String sourceType;
 
-    List<StaticProperty> config;
+  List<StaticProperty> config;
 
-    private List<String> category;
+  private List<String> category;
 
-    public ProtocolDescription() {
-        this.config = new ArrayList<>();
-    }
+  public ProtocolDescription() {
+    this.config = new ArrayList<>();
+  }
 
-    public ProtocolDescription(String uri, String name, String description) {
-        super(uri, name, description);
-        this.config = new ArrayList<>();
-        this.category = new ArrayList<>();
-    }
+  public ProtocolDescription(String uri, String name, String description) {
+    super(uri, name, description);
+    this.config = new ArrayList<>();
+    this.category = new ArrayList<>();
+  }
 
-    public ProtocolDescription(String uri, String name, String description, List<StaticProperty> config) {
-        super(uri, name, description);
-        this.config = config;
-        this.category = new ArrayList<>();
-    }
+  public ProtocolDescription(String uri, String name, String description, List<StaticProperty> config) {
+    super(uri, name, description);
+    this.config = config;
+    this.category = new ArrayList<>();
+  }
 
-    public ProtocolDescription(ProtocolDescription other) {
-        super(other);
+  public ProtocolDescription(ProtocolDescription other) {
+    super(other);
 
-        this.config = new Cloner().staticProperties(other.getConfig());
-        if (other.getCategory() != null) {
-            this.category = new Cloner().epaTypes(other.getCategory());
-        }
+    this.config = new Cloner().staticProperties(other.getConfig());
+    if (other.getCategory() != null) {
+      this.category = new Cloner().epaTypes(other.getCategory());
     }
+  }
 
-    public void addConfig(StaticProperty sp) {
-        this.config.add(sp);
-    }
+  public void addConfig(StaticProperty sp) {
+    this.config.add(sp);
+  }
 
-    public List<StaticProperty> getConfig() {
-        return config;
-    }
+  public List<StaticProperty> getConfig() {
+    return config;
+  }
 
-    public void setConfig(List<StaticProperty> config) {
-        this.config = config;
-    }
+  public void setConfig(List<StaticProperty> config) {
+    this.config = config;
+  }
 
-    public String getSourceType() {
-        return sourceType;
-    }
+  public String getSourceType() {
+    return sourceType;
+  }
 
-    public void setSourceType(String sourceType) {
-        this.sourceType = sourceType;
-    }
+  public void setSourceType(String sourceType) {
+    this.sourceType = sourceType;
+  }
 
-    public List<String> getCategory() {
-        return category;
-    }
+  public List<String> getCategory() {
+    return category;
+  }
 
-    public void setCategory(List<String> category) {
-        this.category = category;
-    }
+  public void setCategory(List<String> category) {
+    this.category = category;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolSetDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolSetDescription.java
index ea5e9e6b2..6aece7d8c 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolSetDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolSetDescription.java
@@ -24,18 +24,18 @@ import java.util.List;
 
 public class ProtocolSetDescription extends ProtocolDescription {
 
-    public ProtocolSetDescription() {
-    }
+  public ProtocolSetDescription() {
+  }
 
-    public ProtocolSetDescription(String uri, String name, String description) {
-        super(uri, name, description);
-    }
+  public ProtocolSetDescription(String uri, String name, String description) {
+    super(uri, name, description);
+  }
 
-    public ProtocolSetDescription(String uri, String name, String description, List<StaticProperty> config) {
-        super(uri, name, description, config);
-    }
+  public ProtocolSetDescription(String uri, String name, String description, List<StaticProperty> config) {
+    super(uri, name, description, config);
+  }
 
-    public ProtocolSetDescription(ProtocolDescription other) {
-        super(other);
-    }
+  public ProtocolSetDescription(ProtocolDescription other) {
+    super(other);
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolStreamDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolStreamDescription.java
index b67f9c33d..0e3899f6a 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolStreamDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/grounding/ProtocolStreamDescription.java
@@ -24,18 +24,18 @@ import java.util.List;
 
 public class ProtocolStreamDescription extends ProtocolDescription {
 
-    public ProtocolStreamDescription() {
-    }
+  public ProtocolStreamDescription() {
+  }
 
-    public ProtocolStreamDescription(String uri, String name, String description) {
-        super(uri, name, description);
-    }
+  public ProtocolStreamDescription(String uri, String name, String description) {
+    super(uri, name, description);
+  }
 
-    public ProtocolStreamDescription(String uri, String name, String description, List<StaticProperty> config) {
-        super(uri, name, description, config);
-    }
+  public ProtocolStreamDescription(String uri, String name, String description, List<StaticProperty> config) {
+    super(uri, name, description, config);
+  }
 
-    public ProtocolStreamDescription(ProtocolDescription other) {
-        super(other);
-    }
+  public ProtocolStreamDescription(ProtocolDescription other) {
+    super(other);
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/guess/FieldStatusInfo.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/guess/FieldStatusInfo.java
index a66b83ddb..66599bcf0 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/guess/FieldStatusInfo.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/guess/FieldStatusInfo.java
@@ -24,6 +24,9 @@ public class FieldStatusInfo {
   private String additionalInfo;
   private boolean changesRequired;
 
+  public FieldStatusInfo() {
+  }
+
   public static FieldStatusInfo good() {
     var info = new FieldStatusInfo();
     info.setFieldStatus(FieldStatus.GOOD);
@@ -40,9 +43,6 @@ public class FieldStatusInfo {
     return info;
   }
 
-  public FieldStatusInfo() {
-  }
-
   public FieldStatus getFieldStatus() {
     return fieldStatus;
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/guess/GuessSchema.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/guess/GuessSchema.java
index ba39f8925..020de7710 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/guess/GuessSchema.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/guess/GuessSchema.java
@@ -30,47 +30,48 @@ import java.util.Map;
 @TsModel
 public class GuessSchema extends UnnamedStreamPipesEntity {
 
-    public EventSchema eventSchema;
-
-    public List<Map<String, GuessTypeInfo>> eventPreview;
-
-    public Map<String, FieldStatusInfo> fieldStatusInfo;
-
-    public GuessSchema() {
-        super();
-        this.eventPreview = new ArrayList<>();
-        this.fieldStatusInfo = new HashMap<>();
-    }
-
-    public GuessSchema(GuessSchema other) {
-        super(other);
-        this.eventSchema = other.getEventSchema() != null ? new EventSchema(other.getEventSchema()) : null;
-        this.eventPreview = other.getEventPreview();
-        this.fieldStatusInfo = other.getFieldStatusInfo();
-    }
-    public EventSchema getEventSchema() {
-        return eventSchema;
-    }
-
-    public void setEventSchema(EventSchema eventSchema) {
-        this.eventSchema = eventSchema;
-    }
-
-    public List<Map<String, GuessTypeInfo>> getEventPreview() {
-        return eventPreview;
-    }
-
-    public void setEventPreview(List<Map<String, GuessTypeInfo>> eventPreview) {
-        this.eventPreview = eventPreview;
-    }
-
-    public Map<String, FieldStatusInfo> getFieldStatusInfo() {
-        return fieldStatusInfo;
-    }
-
-    public void setFieldStatusInfo(Map<String, FieldStatusInfo> fieldStatusInfo) {
-        this.fieldStatusInfo = fieldStatusInfo;
-    }
+  public EventSchema eventSchema;
+
+  public List<Map<String, GuessTypeInfo>> eventPreview;
+
+  public Map<String, FieldStatusInfo> fieldStatusInfo;
+
+  public GuessSchema() {
+    super();
+    this.eventPreview = new ArrayList<>();
+    this.fieldStatusInfo = new HashMap<>();
+  }
+
+  public GuessSchema(GuessSchema other) {
+    super(other);
+    this.eventSchema = other.getEventSchema() != null ? new EventSchema(other.getEventSchema()) : null;
+    this.eventPreview = other.getEventPreview();
+    this.fieldStatusInfo = other.getFieldStatusInfo();
+  }
+
+  public EventSchema getEventSchema() {
+    return eventSchema;
+  }
+
+  public void setEventSchema(EventSchema eventSchema) {
+    this.eventSchema = eventSchema;
+  }
+
+  public List<Map<String, GuessTypeInfo>> getEventPreview() {
+    return eventPreview;
+  }
+
+  public void setEventPreview(List<Map<String, GuessTypeInfo>> eventPreview) {
+    this.eventPreview = eventPreview;
+  }
+
+  public Map<String, FieldStatusInfo> getFieldStatusInfo() {
+    return fieldStatusInfo;
+  }
+
+  public void setFieldStatusInfo(Map<String, FieldStatusInfo> fieldStatusInfo) {
+    this.fieldStatusInfo = fieldStatusInfo;
+  }
 
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/DebugSinkRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/DebugSinkRuleDescription.java
index 41d1c6280..71ce76760 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/DebugSinkRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/DebugSinkRuleDescription.java
@@ -21,7 +21,7 @@ import org.apache.streampipes.model.shared.annotation.TsModel;
 
 @TsModel
 public class DebugSinkRuleDescription extends TransformationRuleDescription {
-    public DebugSinkRuleDescription() {
-        super();
-    }
+  public DebugSinkRuleDescription() {
+    super();
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/TransformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/TransformationRuleDescription.java
index 6042022e0..443f53601 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/TransformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/TransformationRuleDescription.java
@@ -18,7 +18,6 @@
 
 package org.apache.streampipes.model.connect.rules;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
 import org.apache.streampipes.model.base.UnnamedStreamPipesEntity;
 import org.apache.streampipes.model.connect.rules.schema.CreateNestedRuleDescription;
 import org.apache.streampipes.model.connect.rules.schema.DeleteRuleDescription;
@@ -26,33 +25,40 @@ import org.apache.streampipes.model.connect.rules.schema.MoveRuleDescription;
 import org.apache.streampipes.model.connect.rules.schema.RenameRuleDescription;
 import org.apache.streampipes.model.connect.rules.stream.EventRateTransformationRuleDescription;
 import org.apache.streampipes.model.connect.rules.stream.RemoveDuplicatesTransformationRuleDescription;
-import org.apache.streampipes.model.connect.rules.value.*;
+import org.apache.streampipes.model.connect.rules.value.AddTimestampRuleDescription;
+import org.apache.streampipes.model.connect.rules.value.AddValueTransformationRuleDescription;
+import org.apache.streampipes.model.connect.rules.value.ChangeDatatypeTransformationRuleDescription;
+import org.apache.streampipes.model.connect.rules.value.CorrectionValueTransformationRuleDescription;
+import org.apache.streampipes.model.connect.rules.value.TimestampTranfsformationRuleDescription;
+import org.apache.streampipes.model.connect.rules.value.UnitTransformRuleDescription;
 import org.apache.streampipes.model.shared.annotation.TsModel;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 @TsModel
 @JsonSubTypes({
-        @JsonSubTypes.Type(AddTimestampRuleDescription.class),
-        @JsonSubTypes.Type(AddValueTransformationRuleDescription.class),
-        @JsonSubTypes.Type(TimestampTranfsformationRuleDescription.class),
-        @JsonSubTypes.Type(UnitTransformRuleDescription.class),
-        @JsonSubTypes.Type(EventRateTransformationRuleDescription.class),
-        @JsonSubTypes.Type(RemoveDuplicatesTransformationRuleDescription.class),
-        @JsonSubTypes.Type(CreateNestedRuleDescription.class),
-        @JsonSubTypes.Type(DeleteRuleDescription.class),
-        @JsonSubTypes.Type(RenameRuleDescription.class),
-        @JsonSubTypes.Type(MoveRuleDescription.class),
-        @JsonSubTypes.Type(ChangeDatatypeTransformationRuleDescription.class),
-        @JsonSubTypes.Type(CorrectionValueTransformationRuleDescription.class),
-        @JsonSubTypes.Type(DebugSinkRuleDescription.class)
+    @JsonSubTypes.Type(AddTimestampRuleDescription.class),
+    @JsonSubTypes.Type(AddValueTransformationRuleDescription.class),
+    @JsonSubTypes.Type(TimestampTranfsformationRuleDescription.class),
+    @JsonSubTypes.Type(UnitTransformRuleDescription.class),
+    @JsonSubTypes.Type(EventRateTransformationRuleDescription.class),
+    @JsonSubTypes.Type(RemoveDuplicatesTransformationRuleDescription.class),
+    @JsonSubTypes.Type(CreateNestedRuleDescription.class),
+    @JsonSubTypes.Type(DeleteRuleDescription.class),
+    @JsonSubTypes.Type(RenameRuleDescription.class),
+    @JsonSubTypes.Type(MoveRuleDescription.class),
+    @JsonSubTypes.Type(ChangeDatatypeTransformationRuleDescription.class),
+    @JsonSubTypes.Type(CorrectionValueTransformationRuleDescription.class),
+    @JsonSubTypes.Type(DebugSinkRuleDescription.class)
 })
 public abstract class TransformationRuleDescription extends UnnamedStreamPipesEntity {
 
 
-    public TransformationRuleDescription() {
-        super();
-    }
+  public TransformationRuleDescription() {
+    super();
+  }
 
-    public TransformationRuleDescription(TransformationRuleDescription other) {
-        super();
-    }
+  public TransformationRuleDescription(TransformationRuleDescription other) {
+    super();
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/DeleteRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/DeleteRuleDescription.java
index 9dafc166c..219cd84a9 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/DeleteRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/DeleteRuleDescription.java
@@ -20,28 +20,28 @@ package org.apache.streampipes.model.connect.rules.schema;
 
 public class DeleteRuleDescription extends SchemaTransformationRuleDescription {
 
-    private String runtimeKey;
+  private String runtimeKey;
 
 
-    public DeleteRuleDescription() {
-        super();
-    }
+  public DeleteRuleDescription() {
+    super();
+  }
 
-    public DeleteRuleDescription(String runtimeKey) {
-        super();
-        this.runtimeKey = runtimeKey;
-    }
+  public DeleteRuleDescription(String runtimeKey) {
+    super();
+    this.runtimeKey = runtimeKey;
+  }
 
-    public DeleteRuleDescription(DeleteRuleDescription other) {
-        super(other);
-        this.runtimeKey = other.getRuntimeKey();
-    }
+  public DeleteRuleDescription(DeleteRuleDescription other) {
+    super(other);
+    this.runtimeKey = other.getRuntimeKey();
+  }
 
-    public String getRuntimeKey() {
-        return runtimeKey;
-    }
+  public String getRuntimeKey() {
+    return runtimeKey;
+  }
 
-    public void setRuntimeKey(String runtimeKey) {
-        this.runtimeKey = runtimeKey;
-    }
+  public void setRuntimeKey(String runtimeKey) {
+    this.runtimeKey = runtimeKey;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/RenameRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/RenameRuleDescription.java
index 1634e8dd7..b6ccf443a 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/RenameRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/RenameRuleDescription.java
@@ -20,39 +20,39 @@ package org.apache.streampipes.model.connect.rules.schema;
 
 public class RenameRuleDescription extends SchemaTransformationRuleDescription {
 
-    private String oldRuntimeKey;
+  private String oldRuntimeKey;
 
-    private String newRuntimeKey;
+  private String newRuntimeKey;
 
-    public RenameRuleDescription() {
-        super();
-    }
+  public RenameRuleDescription() {
+    super();
+  }
 
-    public RenameRuleDescription(String oldRuntimeKey, String newRuntimeKey) {
-        super();
-        this.oldRuntimeKey = oldRuntimeKey;
-        this.newRuntimeKey = newRuntimeKey;
-    }
+  public RenameRuleDescription(String oldRuntimeKey, String newRuntimeKey) {
+    super();
+    this.oldRuntimeKey = oldRuntimeKey;
+    this.newRuntimeKey = newRuntimeKey;
+  }
 
-    public RenameRuleDescription(RenameRuleDescription other) {
-        super(other);
-        this.oldRuntimeKey = other.getOldRuntimeKey();
-        this.newRuntimeKey = other.getNewRuntimeKey();
-    }
+  public RenameRuleDescription(RenameRuleDescription other) {
+    super(other);
+    this.oldRuntimeKey = other.getOldRuntimeKey();
+    this.newRuntimeKey = other.getNewRuntimeKey();
+  }
 
-    public String getOldRuntimeKey() {
-        return oldRuntimeKey;
-    }
+  public String getOldRuntimeKey() {
+    return oldRuntimeKey;
+  }
 
-    public void setOldRuntimeKey(String oldRuntimeKey) {
-        this.oldRuntimeKey = oldRuntimeKey;
-    }
+  public void setOldRuntimeKey(String oldRuntimeKey) {
+    this.oldRuntimeKey = oldRuntimeKey;
+  }
 
-    public String getNewRuntimeKey() {
-        return newRuntimeKey;
-    }
+  public String getNewRuntimeKey() {
+    return newRuntimeKey;
+  }
 
-    public void setNewRuntimeKey(String newRuntimeKey) {
-        this.newRuntimeKey = newRuntimeKey;
-    }
+  public void setNewRuntimeKey(String newRuntimeKey) {
+    this.newRuntimeKey = newRuntimeKey;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/SchemaTransformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/SchemaTransformationRuleDescription.java
index a996c8080..ce9b7f252 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/SchemaTransformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/schema/SchemaTransformationRuleDescription.java
@@ -22,12 +22,12 @@ import org.apache.streampipes.model.connect.rules.TransformationRuleDescription;
 
 public abstract class SchemaTransformationRuleDescription extends TransformationRuleDescription {
 
-    public SchemaTransformationRuleDescription() {
-        super();
-    }
+  public SchemaTransformationRuleDescription() {
+    super();
+  }
 
-    public SchemaTransformationRuleDescription(TransformationRuleDescription other) {
-        super();
-    }
+  public SchemaTransformationRuleDescription(TransformationRuleDescription other) {
+    super();
+  }
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/EventRateTransformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/EventRateTransformationRuleDescription.java
index c37a889a0..8d73a3d4c 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/EventRateTransformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/EventRateTransformationRuleDescription.java
@@ -20,35 +20,35 @@ package org.apache.streampipes.model.connect.rules.stream;
 
 public class EventRateTransformationRuleDescription extends StreamTransformationRuleDescription {
 
-    private long aggregationTimeWindow;
+  private long aggregationTimeWindow;
 
-    //None (Values from last event), max, min, mean, sum (of the values in the time window)
-    private String aggregationType;
+  //None (Values from last event), max, min, mean, sum (of the values in the time window)
+  private String aggregationType;
 
 
-    public EventRateTransformationRuleDescription() {
+  public EventRateTransformationRuleDescription() {
 
-    }
+  }
 
-    public EventRateTransformationRuleDescription(EventRateTransformationRuleDescription other) {
-        super(other);
-        this.aggregationTimeWindow = other.getAggregationTimeWindow();
-        this.aggregationType = other.getAggregationType();
-    }
+  public EventRateTransformationRuleDescription(EventRateTransformationRuleDescription other) {
+    super(other);
+    this.aggregationTimeWindow = other.getAggregationTimeWindow();
+    this.aggregationType = other.getAggregationType();
+  }
 
-    public long getAggregationTimeWindow() {
-        return aggregationTimeWindow;
-    }
+  public long getAggregationTimeWindow() {
+    return aggregationTimeWindow;
+  }
 
-    public void setAggregationTimeWindow(long aggregationTimeWindow) {
-        this.aggregationTimeWindow = aggregationTimeWindow;
-    }
+  public void setAggregationTimeWindow(long aggregationTimeWindow) {
+    this.aggregationTimeWindow = aggregationTimeWindow;
+  }
 
-    public String getAggregationType() {
-        return aggregationType;
-    }
+  public String getAggregationType() {
+    return aggregationType;
+  }
 
-    public void setAggregationType(String aggregationTypes) {
-        this.aggregationType = aggregationTypes;
-    }
+  public void setAggregationType(String aggregationTypes) {
+    this.aggregationType = aggregationTypes;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/RemoveDuplicatesTransformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/RemoveDuplicatesTransformationRuleDescription.java
index 0a69a1bee..0c67496d4 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/RemoveDuplicatesTransformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/RemoveDuplicatesTransformationRuleDescription.java
@@ -20,22 +20,22 @@ package org.apache.streampipes.model.connect.rules.stream;
 
 public class RemoveDuplicatesTransformationRuleDescription extends StreamTransformationRuleDescription {
 
-    private String filterTimeWindow;
+  private String filterTimeWindow;
 
-    public RemoveDuplicatesTransformationRuleDescription() {
-        super();
-    }
+  public RemoveDuplicatesTransformationRuleDescription() {
+    super();
+  }
 
-    public RemoveDuplicatesTransformationRuleDescription(RemoveDuplicatesTransformationRuleDescription other) {
-        super(other);
-        this.filterTimeWindow = other.getFilterTimeWindow();
-    }
+  public RemoveDuplicatesTransformationRuleDescription(RemoveDuplicatesTransformationRuleDescription other) {
+    super(other);
+    this.filterTimeWindow = other.getFilterTimeWindow();
+  }
 
-    public String getFilterTimeWindow() {
-        return filterTimeWindow;
-    }
+  public String getFilterTimeWindow() {
+    return filterTimeWindow;
+  }
 
-    public void setFilterTimeWindow(String filterTimeWindow) {
-        this.filterTimeWindow = filterTimeWindow;
-    }
+  public void setFilterTimeWindow(String filterTimeWindow) {
+    this.filterTimeWindow = filterTimeWindow;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/StreamTransformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/StreamTransformationRuleDescription.java
index 5e6bca24c..76d3436e2 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/StreamTransformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/stream/StreamTransformationRuleDescription.java
@@ -18,20 +18,21 @@
 
 package org.apache.streampipes.model.connect.rules.stream;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
 import org.apache.streampipes.model.connect.rules.TransformationRuleDescription;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 @JsonSubTypes({
-        @JsonSubTypes.Type(EventRateTransformationRuleDescription.class),
-        @JsonSubTypes.Type(RemoveDuplicatesTransformationRuleDescription.class),
+    @JsonSubTypes.Type(EventRateTransformationRuleDescription.class),
+    @JsonSubTypes.Type(RemoveDuplicatesTransformationRuleDescription.class),
 })
 public abstract class StreamTransformationRuleDescription extends TransformationRuleDescription {
 
-    public StreamTransformationRuleDescription() {
-        super();
-    }
+  public StreamTransformationRuleDescription() {
+    super();
+  }
 
-    public StreamTransformationRuleDescription(TransformationRuleDescription other) {
-        super();
-    }
+  public StreamTransformationRuleDescription(TransformationRuleDescription other) {
+    super();
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/AddTimestampRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/AddTimestampRuleDescription.java
index 572c37c70..fcfd3a3f8 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/AddTimestampRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/AddTimestampRuleDescription.java
@@ -20,22 +20,22 @@ package org.apache.streampipes.model.connect.rules.value;
 
 public class AddTimestampRuleDescription extends ValueTransformationRuleDescription {
 
-    private String runtimeKey;
+  private String runtimeKey;
 
-    public AddTimestampRuleDescription() {
-        super();
-    }
+  public AddTimestampRuleDescription() {
+    super();
+  }
 
-    public AddTimestampRuleDescription(AddTimestampRuleDescription other) {
-        super(other);
-        this.runtimeKey = other.getRuntimeKey();
-    }
+  public AddTimestampRuleDescription(AddTimestampRuleDescription other) {
+    super(other);
+    this.runtimeKey = other.getRuntimeKey();
+  }
 
-    public String getRuntimeKey() {
-        return runtimeKey;
-    }
+  public String getRuntimeKey() {
+    return runtimeKey;
+  }
 
-    public void setRuntimeKey(String runtimeKey) {
-        this.runtimeKey = runtimeKey;
-    }
+  public void setRuntimeKey(String runtimeKey) {
+    this.runtimeKey = runtimeKey;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/AddValueTransformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/AddValueTransformationRuleDescription.java
index 19e068b42..d2adb1094 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/AddValueTransformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/AddValueTransformationRuleDescription.java
@@ -20,33 +20,33 @@ package org.apache.streampipes.model.connect.rules.value;
 
 public class AddValueTransformationRuleDescription extends ValueTransformationRuleDescription {
 
-    private String runtimeKey;
+  private String runtimeKey;
 
-    private String staticValue;
+  private String staticValue;
 
-    public AddValueTransformationRuleDescription() {
-        super();
-    }
+  public AddValueTransformationRuleDescription() {
+    super();
+  }
 
-    public AddValueTransformationRuleDescription(AddValueTransformationRuleDescription other) {
-        super(other);
-        this.runtimeKey = other.getRuntimeKey();
-        this.staticValue = other.getStaticValue();
-    }
+  public AddValueTransformationRuleDescription(AddValueTransformationRuleDescription other) {
+    super(other);
+    this.runtimeKey = other.getRuntimeKey();
+    this.staticValue = other.getStaticValue();
+  }
 
-    public String getRuntimeKey() {
-        return runtimeKey;
-    }
+  public String getRuntimeKey() {
+    return runtimeKey;
+  }
 
-    public void setRuntimeKey(String runtimeKey) {
-        this.runtimeKey = runtimeKey;
-    }
+  public void setRuntimeKey(String runtimeKey) {
+    this.runtimeKey = runtimeKey;
+  }
 
-    public String getStaticValue() {
-        return staticValue;
-    }
+  public String getStaticValue() {
+    return staticValue;
+  }
 
-    public void setStaticValue(String staticValue) {
-        this.staticValue = staticValue;
-    }
+  public void setStaticValue(String staticValue) {
+    this.staticValue = staticValue;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/CorrectionValueTransformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/CorrectionValueTransformationRuleDescription.java
index 2041482e5..774775121 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/CorrectionValueTransformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/CorrectionValueTransformationRuleDescription.java
@@ -1,4 +1,4 @@
-package org.apache.streampipes.model.connect.rules.value;/*
+/*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
@@ -16,52 +16,54 @@ package org.apache.streampipes.model.connect.rules.value;/*
  *
  */
 
+package org.apache.streampipes.model.connect.rules.value;
+
 public class CorrectionValueTransformationRuleDescription extends ValueTransformationRuleDescription {
 
-    private String runtimeKey;
+  private String runtimeKey;
 
-    private double correctionValue;
+  private double correctionValue;
 
-    private String operator;
+  private String operator;
 
-    public CorrectionValueTransformationRuleDescription() {
-        super();
-    }
+  public CorrectionValueTransformationRuleDescription() {
+    super();
+  }
 
-    public CorrectionValueTransformationRuleDescription(String runtimeKey, double correctionValue, String operator) {
-        this.runtimeKey = runtimeKey;
-        this.correctionValue = correctionValue;
-        this.operator = operator;
-    }
+  public CorrectionValueTransformationRuleDescription(String runtimeKey, double correctionValue, String operator) {
+    this.runtimeKey = runtimeKey;
+    this.correctionValue = correctionValue;
+    this.operator = operator;
+  }
 
-    public CorrectionValueTransformationRuleDescription(CorrectionValueTransformationRuleDescription other) {
-        super(other);
-        this.runtimeKey = other.getRuntimeKey();
-        this.correctionValue = other.getCorrectionValue();
-        this.operator = other.getOperator();
-    }
+  public CorrectionValueTransformationRuleDescription(CorrectionValueTransformationRuleDescription other) {
+    super(other);
+    this.runtimeKey = other.getRuntimeKey();
+    this.correctionValue = other.getCorrectionValue();
+    this.operator = other.getOperator();
+  }
 
-    public String getRuntimeKey() {
-        return runtimeKey;
-    }
+  public String getRuntimeKey() {
+    return runtimeKey;
+  }
 
-    public void setRuntimeKey(String runtimeKey) {
-        this.runtimeKey = runtimeKey;
-    }
+  public void setRuntimeKey(String runtimeKey) {
+    this.runtimeKey = runtimeKey;
+  }
 
-    public double getCorrectionValue() {
-        return correctionValue;
-    }
+  public double getCorrectionValue() {
+    return correctionValue;
+  }
 
-    public void setCorrectionValue(double correctionValue) {
-        this.correctionValue = correctionValue;
-    }
+  public void setCorrectionValue(double correctionValue) {
+    this.correctionValue = correctionValue;
+  }
 
-    public String getOperator() {
-        return operator;
-    }
+  public String getOperator() {
+    return operator;
+  }
 
-    public void setOperator(String operator) {
-        this.operator = operator;
-    }
+  public void setOperator(String operator) {
+    this.operator = operator;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/TimestampTranfsformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/TimestampTranfsformationRuleDescription.java
index 951fa218a..dd19158fc 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/TimestampTranfsformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/TimestampTranfsformationRuleDescription.java
@@ -20,63 +20,63 @@ package org.apache.streampipes.model.connect.rules.value;
 
 public class TimestampTranfsformationRuleDescription extends ValueTransformationRuleDescription {
 
-    private String runtimeKey;
+  private String runtimeKey;
 
-    private String mode;
+  private String mode;
 
-    private String formatString;
+  private String formatString;
 
-    private long multiplier;
+  private long multiplier;
 
-    public TimestampTranfsformationRuleDescription() {
-        super();
-    }
+  public TimestampTranfsformationRuleDescription() {
+    super();
+  }
 
-    public TimestampTranfsformationRuleDescription(String runtimeKey, String mode,
-                                                   String formatString, Long multiplier) {
-        this.runtimeKey = runtimeKey;
-        this.mode = mode;
-        this.formatString = formatString;
-        this.multiplier = multiplier;
-    }
+  public TimestampTranfsformationRuleDescription(String runtimeKey, String mode,
+                                                 String formatString, Long multiplier) {
+    this.runtimeKey = runtimeKey;
+    this.mode = mode;
+    this.formatString = formatString;
+    this.multiplier = multiplier;
+  }
 
-    public TimestampTranfsformationRuleDescription(TimestampTranfsformationRuleDescription other) {
-        super(other);
-        this.runtimeKey = other.getRuntimeKey();
-        this.mode = other.getMode();
-        this.formatString = other.getFormatString();
-        this.multiplier = other.getMultiplier();
-    }
+  public TimestampTranfsformationRuleDescription(TimestampTranfsformationRuleDescription other) {
+    super(other);
+    this.runtimeKey = other.getRuntimeKey();
+    this.mode = other.getMode();
+    this.formatString = other.getFormatString();
+    this.multiplier = other.getMultiplier();
+  }
 
-    public String getRuntimeKey() {
-        return runtimeKey;
-    }
+  public String getRuntimeKey() {
+    return runtimeKey;
+  }
 
-    public void setRuntimeKey(String runtimeKey) {
-        this.runtimeKey = runtimeKey;
-    }
+  public void setRuntimeKey(String runtimeKey) {
+    this.runtimeKey = runtimeKey;
+  }
 
-    public String getMode() {
-        return mode;
-    }
+  public String getMode() {
+    return mode;
+  }
 
-    public void setMode(String mode) {
-        this.mode = mode;
-    }
+  public void setMode(String mode) {
+    this.mode = mode;
+  }
 
-    public String getFormatString() {
-        return formatString;
-    }
+  public String getFormatString() {
+    return formatString;
+  }
 
-    public void setFormatString(String formatString) {
-        this.formatString = formatString;
-    }
+  public void setFormatString(String formatString) {
+    this.formatString = formatString;
+  }
 
-    public long getMultiplier() {
-        return multiplier;
-    }
+  public long getMultiplier() {
+    return multiplier;
+  }
 
-    public void setMultiplier(long multiplier) {
-        this.multiplier = multiplier;
-    }
+  public void setMultiplier(long multiplier) {
+    this.multiplier = multiplier;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/TimestampTransformationRuleMode.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/TimestampTransformationRuleMode.java
index 2afd46bf9..fbec7e64d 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/TimestampTransformationRuleMode.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/TimestampTransformationRuleMode.java
@@ -21,6 +21,6 @@ package org.apache.streampipes.model.connect.rules.value;
 
 public class TimestampTransformationRuleMode {
 
-    public static final String FORMAT_STRING = "formatString";
-    public static final String TIME_UNIT = "timeUnit";
+  public static final String FORMAT_STRING = "formatString";
+  public static final String TIME_UNIT = "timeUnit";
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/UnitTransformRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/UnitTransformRuleDescription.java
index 6641f47ff..ae5c56cfb 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/UnitTransformRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/UnitTransformRuleDescription.java
@@ -20,51 +20,51 @@ package org.apache.streampipes.model.connect.rules.value;
 
 public class UnitTransformRuleDescription extends ValueTransformationRuleDescription {
 
-    private String runtimeKey;
+  private String runtimeKey;
 
-    private String fromUnitRessourceURL;
+  private String fromUnitRessourceURL;
 
-    private String toUnitRessourceURL;
+  private String toUnitRessourceURL;
 
-    public UnitTransformRuleDescription() {
-        super();
-    }
+  public UnitTransformRuleDescription() {
+    super();
+  }
 
-    public UnitTransformRuleDescription(String runtimeKey, String fromUnitRessourceURL, String toUnit) {
-        super();
-        this.runtimeKey = runtimeKey;
-        this.fromUnitRessourceURL = fromUnitRessourceURL;
-        this.toUnitRessourceURL = toUnit;
-    }
+  public UnitTransformRuleDescription(String runtimeKey, String fromUnitRessourceURL, String toUnit) {
+    super();
+    this.runtimeKey = runtimeKey;
+    this.fromUnitRessourceURL = fromUnitRessourceURL;
+    this.toUnitRessourceURL = toUnit;
+  }
 
-    public UnitTransformRuleDescription(UnitTransformRuleDescription other) {
-        super(other);
-        this.runtimeKey = other.getRuntimeKey();
-        this.fromUnitRessourceURL = other.getFromUnitRessourceURL();
-        this.toUnitRessourceURL = other.getToUnitRessourceURL();
-    }
+  public UnitTransformRuleDescription(UnitTransformRuleDescription other) {
+    super(other);
+    this.runtimeKey = other.getRuntimeKey();
+    this.fromUnitRessourceURL = other.getFromUnitRessourceURL();
+    this.toUnitRessourceURL = other.getToUnitRessourceURL();
+  }
 
-    public String getRuntimeKey() {
-        return runtimeKey;
-    }
+  public String getRuntimeKey() {
+    return runtimeKey;
+  }
 
-    public void setRuntimeKey(String runtimeKey) {
-        this.runtimeKey = runtimeKey;
-    }
+  public void setRuntimeKey(String runtimeKey) {
+    this.runtimeKey = runtimeKey;
+  }
 
-    public String getFromUnitRessourceURL() {
-        return fromUnitRessourceURL;
-    }
+  public String getFromUnitRessourceURL() {
+    return fromUnitRessourceURL;
+  }
 
-    public void setFromUnitRessourceURL(String fromUnitRessourceURL) {
-        this.fromUnitRessourceURL = fromUnitRessourceURL;
-    }
+  public void setFromUnitRessourceURL(String fromUnitRessourceURL) {
+    this.fromUnitRessourceURL = fromUnitRessourceURL;
+  }
 
-    public String getToUnitRessourceURL() {
-        return toUnitRessourceURL;
-    }
+  public String getToUnitRessourceURL() {
+    return toUnitRessourceURL;
+  }
 
-    public void setToUnitRessourceURL(String toUnitRessourceURL) {
-        this.toUnitRessourceURL = toUnitRessourceURL;
-    }
+  public void setToUnitRessourceURL(String toUnitRessourceURL) {
+    this.toUnitRessourceURL = toUnitRessourceURL;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/ValueTransformationRuleDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/ValueTransformationRuleDescription.java
index e3063b07e..dee07a215 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/ValueTransformationRuleDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/rules/value/ValueTransformationRuleDescription.java
@@ -18,23 +18,24 @@
 
 package org.apache.streampipes.model.connect.rules.value;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
 import org.apache.streampipes.model.connect.rules.TransformationRuleDescription;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 @JsonSubTypes({
-        @JsonSubTypes.Type(AddTimestampRuleDescription.class),
-        @JsonSubTypes.Type(AddValueTransformationRuleDescription.class),
-        @JsonSubTypes.Type(TimestampTranfsformationRuleDescription.class),
-        @JsonSubTypes.Type(UnitTransformRuleDescription.class),
-        @JsonSubTypes.Type(CorrectionValueTransformationRuleDescription.class),
+    @JsonSubTypes.Type(AddTimestampRuleDescription.class),
+    @JsonSubTypes.Type(AddValueTransformationRuleDescription.class),
+    @JsonSubTypes.Type(TimestampTranfsformationRuleDescription.class),
+    @JsonSubTypes.Type(UnitTransformRuleDescription.class),
+    @JsonSubTypes.Type(CorrectionValueTransformationRuleDescription.class),
 })
 public abstract class ValueTransformationRuleDescription extends TransformationRuleDescription {
 
-    public ValueTransformationRuleDescription() {
-        super();
-    }
+  public ValueTransformationRuleDescription() {
+    super();
+  }
 
-    public ValueTransformationRuleDescription(TransformationRuleDescription other) {
-        super();
-    }
+  public ValueTransformationRuleDescription(TransformationRuleDescription other) {
+    super();
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/unit/UnitDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/unit/UnitDescription.java
index 28a0cbac1..41ea29328 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/connect/unit/UnitDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/connect/unit/UnitDescription.java
@@ -20,31 +20,31 @@ package org.apache.streampipes.model.connect.unit;
 
 public class UnitDescription {
 
-    private String resource;
-    private String label;
+  private String resource;
+  private String label;
 
-    public UnitDescription() {
-    }
+  public UnitDescription() {
+  }
 
-    public UnitDescription(String resource, String label) {
-        this.resource = resource;
-        this.label = label;
-    }
+  public UnitDescription(String resource, String label) {
+    this.resource = resource;
+    this.label = label;
+  }
 
-    public String getResource() {
-        return resource;
-    }
+  public String getResource() {
+    return resource;
+  }
 
-    public void setResource(String resource) {
-        this.resource = resource;
-    }
+  public void setResource(String resource) {
+    this.resource = resource;
+  }
 
-    public String getLabel() {
-        return label;
-    }
+  public String getLabel() {
+    return label;
+  }
 
-    public void setLabel(String label) {
-        this.label = label;
-    }
+  public void setLabel(String label) {
+    this.label = label;
+  }
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardEntity.java b/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardEntity.java
index dca69f2a4..5ef0f8e09 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardEntity.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardEntity.java
@@ -18,14 +18,15 @@
 
 package org.apache.streampipes.model.dashboard;
 
+import org.apache.streampipes.model.datalake.DataExplorerWidgetModel;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.model.datalake.DataExplorerWidgetModel;
 
 @JsonSubTypes({
-        @JsonSubTypes.Type(DashboardWidgetModel.class),
-        @JsonSubTypes.Type(DataExplorerWidgetModel.class)
+    @JsonSubTypes.Type(DashboardWidgetModel.class),
+    @JsonSubTypes.Type(DataExplorerWidgetModel.class)
 })
 public abstract class DashboardEntity {
 
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardItem.java b/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardItem.java
index 1de237bc7..c7962b041 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardItem.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardItem.java
@@ -59,7 +59,7 @@ public class DashboardItem {
   public void setComponent(String component) {
     this.component = component;
   }
-  
+
   public List<String> getSettings() {
     return settings;
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardModel.java b/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardModel.java
index dcf43e681..5c001011c 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardModel.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardModel.java
@@ -18,9 +18,10 @@
 
 package org.apache.streampipes.model.dashboard;
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 import java.util.HashMap;
 import java.util.List;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardWidgetModel.java b/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardWidgetModel.java
index 7f7e732b4..5308789df 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardWidgetModel.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/dashboard/DashboardWidgetModel.java
@@ -25,7 +25,7 @@ public class DashboardWidgetModel extends DashboardEntity {
 
   private String widgetId;
 
-  private String  widgetType;
+  private String widgetType;
 
   private DashboardWidgetSettings dashboardWidgetSettings;
 
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataExplorerWidgetModel.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataExplorerWidgetModel.java
index 0934c9a2b..2371363ac 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataExplorerWidgetModel.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataExplorerWidgetModel.java
@@ -18,9 +18,10 @@
 
 package org.apache.streampipes.model.datalake;
 
-import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 import org.apache.streampipes.model.dashboard.DashboardEntity;
 
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+
 import java.util.HashMap;
 import java.util.Map;
 
@@ -30,20 +31,19 @@ public class DataExplorerWidgetModel extends DashboardEntity {
 
   private String widgetType;
 
-  @JsonSerialize(using = CustomMapSerializer.class, as=Map.class)
+  @JsonSerialize(using = CustomMapSerializer.class, as = Map.class)
   private Map<String, Object> baseAppearanceConfig;
 
-  @JsonSerialize(using = CustomMapSerializer.class, as=Map.class)
+  @JsonSerialize(using = CustomMapSerializer.class, as = Map.class)
   private Map<String, Object> visualizationConfig;
 
-  @JsonSerialize(using = CustomMapSerializer.class, as=Map.class)
+  @JsonSerialize(using = CustomMapSerializer.class, as = Map.class)
   private Map<String, Object> dataConfig;
 
   private String pipelineId;
   private String measureName;
 
 
-
   public DataExplorerWidgetModel() {
     super();
     this.baseAppearanceConfig = new HashMap<>();
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeConfiguration.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeConfiguration.java
index 06d649145..a36e05788 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeConfiguration.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeConfiguration.java
@@ -23,56 +23,57 @@ import java.util.List;
 
 public class DataLakeConfiguration {
 
-    private Integer batchSize;
-    private Integer flushDuration;
+  private Integer batchSize;
+  private Integer flushDuration;
 
-    private List<DataLakeRetentionPolicy> retentionPolicies;
+  private List<DataLakeRetentionPolicy> retentionPolicies;
 
-    public DataLakeConfiguration() {
-        this.batchSize = 2000;
-        this.flushDuration = 500;
-        this.retentionPolicies = new ArrayList<DataLakeRetentionPolicy>();
-    }
+  public DataLakeConfiguration() {
+    this.batchSize = 2000;
+    this.flushDuration = 500;
+    this.retentionPolicies = new ArrayList<DataLakeRetentionPolicy>();
+  }
 
-    public DataLakeConfiguration(List<DataLakeRetentionPolicy> retentionPolicies) {
-        this.batchSize = 2000;
-        this.flushDuration = 500;
-        this.retentionPolicies = retentionPolicies;
-    }
+  public DataLakeConfiguration(List<DataLakeRetentionPolicy> retentionPolicies) {
+    this.batchSize = 2000;
+    this.flushDuration = 500;
+    this.retentionPolicies = retentionPolicies;
+  }
 
-    public DataLakeConfiguration(Integer batchSize, Integer flushDuration) {
-        this.batchSize = batchSize;
-        this.flushDuration = flushDuration;
-        this.retentionPolicies = new ArrayList<DataLakeRetentionPolicy>();
-    }
+  public DataLakeConfiguration(Integer batchSize, Integer flushDuration) {
+    this.batchSize = batchSize;
+    this.flushDuration = flushDuration;
+    this.retentionPolicies = new ArrayList<DataLakeRetentionPolicy>();
+  }
 
-    public DataLakeConfiguration(Integer batchSize, Integer flushDuration, List<DataLakeRetentionPolicy> retentionPolicies) {
-        this.batchSize = batchSize;
-        this.flushDuration = flushDuration;
-        this.retentionPolicies = retentionPolicies;
-    }
+  public DataLakeConfiguration(Integer batchSize, Integer flushDuration,
+                               List<DataLakeRetentionPolicy> retentionPolicies) {
+    this.batchSize = batchSize;
+    this.flushDuration = flushDuration;
+    this.retentionPolicies = retentionPolicies;
+  }
 
-    public List<DataLakeRetentionPolicy> getRetentionPolicies() {
-        return retentionPolicies;
-    }
+  public List<DataLakeRetentionPolicy> getRetentionPolicies() {
+    return retentionPolicies;
+  }
 
-    public void setRetentionPolicies(List<DataLakeRetentionPolicy> retentionPolicies) {
-        this.retentionPolicies = retentionPolicies;
-    }
+  public void setRetentionPolicies(List<DataLakeRetentionPolicy> retentionPolicies) {
+    this.retentionPolicies = retentionPolicies;
+  }
 
-    public Integer getBatchSize() {
-        return batchSize;
-    }
+  public Integer getBatchSize() {
+    return batchSize;
+  }
 
-    public void setBatchSize(Integer batchSize) {
-        this.batchSize = batchSize;
-    }
+  public void setBatchSize(Integer batchSize) {
+    this.batchSize = batchSize;
+  }
 
-    public Integer getFlushDuration() {
-        return flushDuration;
-    }
+  public Integer getFlushDuration() {
+    return flushDuration;
+  }
 
-    public void setFlushDuration(Integer flushDuration) {
-        this.flushDuration = flushDuration;
-    }
+  public void setFlushDuration(Integer flushDuration) {
+    this.flushDuration = flushDuration;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeMeasure.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeMeasure.java
index fbc2ef863..ed15c746d 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeMeasure.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeMeasure.java
@@ -18,23 +18,21 @@
 
 package org.apache.streampipes.model.datalake;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
-import com.fasterxml.jackson.annotation.JsonProperty;
-import com.google.gson.annotations.SerializedName;
 import org.apache.streampipes.model.base.UnnamedStreamPipesEntity;
 import org.apache.streampipes.model.schema.EventSchema;
 import org.apache.streampipes.model.shared.annotation.TsIgnore;
 import org.apache.streampipes.model.shared.annotation.TsModel;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.gson.annotations.SerializedName;
+
 @TsModel
 public class DataLakeMeasure extends UnnamedStreamPipesEntity {
 
   public static final String CURRENT_SCHEMA_VERSION = "1.1";
-
-  private static final String STREAM_PREFIX_DELIMITER = "::";
-
   public static final String ASSERTION_ERROR_MESSAGE = "timestamp field requires a stream prefix (e.g. s0::timestamp)";
-
+  private static final String STREAM_PREFIX_DELIMITER = "::";
   @JsonProperty("_rev")
   private @SerializedName("_rev") String rev;
 
@@ -122,9 +120,14 @@ public class DataLakeMeasure extends UnnamedStreamPipesEntity {
     return timestampField;
   }
 
+  public void setTimestampField(String timestampField) {
+    assert timestampField.split(STREAM_PREFIX_DELIMITER).length == 2 : ASSERTION_ERROR_MESSAGE;
+    this.timestampField = timestampField;
+  }
 
   /**
    * This can be used to get the name of the timestamp property without the stream prefix
+   *
    * @return the name of the timestamp property
    */
   @TsIgnore
@@ -133,11 +136,6 @@ public class DataLakeMeasure extends UnnamedStreamPipesEntity {
     return timestampField.split(STREAM_PREFIX_DELIMITER)[1];
   }
 
-  public void setTimestampField(String timestampField) {
-    assert timestampField.split(STREAM_PREFIX_DELIMITER).length == 2 : ASSERTION_ERROR_MESSAGE;
-    this.timestampField = timestampField;
-  }
-
   public String getRev() {
     return rev;
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeRetentionPolicy.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeRetentionPolicy.java
index b24352280..bcff21c9a 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeRetentionPolicy.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataLakeRetentionPolicy.java
@@ -20,61 +20,58 @@ package org.apache.streampipes.model.datalake;
 
 public class DataLakeRetentionPolicy {
 
-    private String name;
-    private String durationLiteral;
-    private boolean isDefault;
+  private String name;
+  private String durationLiteral;
+  private boolean isDefault;
 
-    public DataLakeRetentionPolicy(String name, int duration, String durationUnit, boolean isDefault) {
-        this.name = name;
-        this.durationLiteral = duration + durationUnit;
-        this.isDefault = isDefault;
-    }
+  public DataLakeRetentionPolicy(String name, int duration, String durationUnit, boolean isDefault) {
+    this.name = name;
+    this.durationLiteral = duration + durationUnit;
+    this.isDefault = isDefault;
+  }
 
-    public DataLakeRetentionPolicy(String name) {
-        this.name = name;
-        this.isDefault = false;
-        setDurationLiteralToInfinity();
-    }
+  public DataLakeRetentionPolicy(String name) {
+    this.name = name;
+    this.isDefault = false;
+    setDurationLiteralToInfinity();
+  }
 
-    public DataLakeRetentionPolicy(String name, String durationLiteral, boolean isDefault) {
-        this.name = name;
-        this.durationLiteral = durationLiteral;
-        this.isDefault = isDefault;
-    }
+  public DataLakeRetentionPolicy(String name, String durationLiteral, boolean isDefault) {
+    this.name = name;
+    this.durationLiteral = durationLiteral;
+    this.isDefault = isDefault;
+  }
 
-    public String getDurationLiteral() {
-        return durationLiteral;
-    }
+  public String getDurationLiteral() {
+    return durationLiteral;
+  }
 
-    public void setDurationLiteral(int duration, String durationUnit) {
-        this.durationLiteral = duration + durationUnit;
-    }
+  public void setDurationLiteral(int duration, String durationUnit) {
+    this.durationLiteral = duration + durationUnit;
+  }
 
-    public void setDurationLiteralToInfinity() {
-        this.durationLiteral = "INF";
-    }
+  public void setDurationLiteralToInfinity() {
+    this.durationLiteral = "INF";
+  }
 
-    public String getName() {
-        return name;
-    }
+  public String getName() {
+    return name;
+  }
 
-    public void setName(String name) {
-        this.name = name;
-    }
+  public void setName(String name) {
+    this.name = name;
+  }
 
-    public boolean isDefault() {
-        return isDefault;
-    }
+  public boolean isDefault() {
+    return isDefault;
+  }
 
-    public void setDefault(boolean isDefault) {
-        this.isDefault = isDefault;
-    }
+  public void setDefault(boolean isDefault) {
+    this.isDefault = isDefault;
+  }
 
-    @Override
-    public String toString() {
-        return "DataLakeRetentionPolicy{" +
-                "name='" + name + '\'' +
-                ", durationLiteral='" + durationLiteral + '\'' +
-                '}';
-    }
+  @Override
+  public String toString() {
+    return String.format("DataLakeRetentionPolicy{name='%s', durationLiteral='%s'}", name, durationLiteral);
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataSeries.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataSeries.java
index 14834ee76..13693a633 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataSeries.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/DataSeries.java
@@ -27,37 +27,37 @@ import java.util.Map;
 @TsModel
 public class DataSeries {
 
-    private int total;
-    private List<List<Object>> rows;
-    private Map<String, String> tags;
-    private List<String> headers;
-
-    public DataSeries() {
-        this.total = 0;
-        this.tags = new HashMap<>();
-    }
-
-    public DataSeries(int total, List<List<Object>> rows, List<String> headers, Map<String, String> tags) {
-        this.total = total;
-        this.rows = rows;
-        this.headers = headers;
-        this.tags = tags;
-    }
-
-    public int getTotal() {
-        return total;
-    }
-
-    public Map<String, String> getTags() {
-        return tags;
-    }
-
-    public List<String> getHeaders() {
-        return headers;
-    }
-
-    public List<List<Object>> getRows() {
-        return rows;
-    }
+  private int total;
+  private List<List<Object>> rows;
+  private Map<String, String> tags;
+  private List<String> headers;
+
+  public DataSeries() {
+    this.total = 0;
+    this.tags = new HashMap<>();
+  }
+
+  public DataSeries(int total, List<List<Object>> rows, List<String> headers, Map<String, String> tags) {
+    this.total = total;
+    this.rows = rows;
+    this.headers = headers;
+    this.tags = tags;
+  }
+
+  public int getTotal() {
+    return total;
+  }
+
+  public Map<String, String> getTags() {
+    return tags;
+  }
+
+  public List<String> getHeaders() {
+    return headers;
+  }
+
+  public List<List<Object>> getRows() {
+    return rows;
+  }
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/LabelDefinition.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/LabelDefinition.java
index 60eb7dbda..3f9dc9e97 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/LabelDefinition.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/LabelDefinition.java
@@ -20,27 +20,27 @@ package org.apache.streampipes.model.datalake;
 
 public class LabelDefinition {
 
-    private String classLabel;
-    private String labelColumn;
+  private String classLabel;
+  private String labelColumn;
 
-    public LabelDefinition(String classLabel, String labelColumn) {
-        this.classLabel = classLabel;
-        this.labelColumn = labelColumn;
-    }
+  public LabelDefinition(String classLabel, String labelColumn) {
+    this.classLabel = classLabel;
+    this.labelColumn = labelColumn;
+  }
 
-    public String getClassLabel() {
-        return classLabel;
-    }
+  public String getClassLabel() {
+    return classLabel;
+  }
 
-    public void setClassLabel(String classLabel) {
-        this.classLabel = classLabel;
-    }
+  public void setClassLabel(String classLabel) {
+    this.classLabel = classLabel;
+  }
 
-    public String getLabelColumn() {
-        return labelColumn;
-    }
+  public String getLabelColumn() {
+    return labelColumn;
+  }
 
-    public void setLabelColumn(String labelColumn) {
-        this.labelColumn = labelColumn;
-    }
+  public void setLabelColumn(String labelColumn) {
+    this.labelColumn = labelColumn;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/PageResult.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/PageResult.java
index be8b4c517..280b6e8e8 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/PageResult.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/PageResult.java
@@ -26,29 +26,30 @@ import java.util.Map;
 @TsModel
 public class PageResult extends DataSeries {
 
-    private int page;
+  private int page;
 
-    private int pageSum;
+  private int pageSum;
 
-    public PageResult(int total, List<String> headers, List<List<Object>> rows, int page, int pageSum, Map<String, String> tags) {
-        super(total, rows, headers, tags);
-        this.page = page;
-        this.pageSum = pageSum;
-    }
+  public PageResult(int total, List<String> headers, List<List<Object>> rows, int page, int pageSum,
+                    Map<String, String> tags) {
+    super(total, rows, headers, tags);
+    this.page = page;
+    this.pageSum = pageSum;
+  }
 
-    public int getPage() {
-        return page;
-    }
+  public int getPage() {
+    return page;
+  }
 
-    public void setPage(int page) {
-        this.page = page;
-    }
+  public void setPage(int page) {
+    this.page = page;
+  }
 
-    public int getPageSum() {
-        return pageSum;
-    }
+  public int getPageSum() {
+    return pageSum;
+  }
 
-    public void setPageSum(int pageSum) {
-        this.pageSum = pageSum;
-    }
+  public void setPageSum(int pageSum) {
+    this.pageSum = pageSum;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/SpQueryResult.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/SpQueryResult.java
index c3c9ef7e8..d65142d33 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/SpQueryResult.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/SpQueryResult.java
@@ -26,79 +26,79 @@ import java.util.List;
 @TsModel
 public class SpQueryResult {
 
-    private int total;
-    private List<String> headers;
-    private List<DataSeries> allDataSeries;
-    private int sourceIndex;
-    private SpQueryStatus spQueryStatus;
-    private String forId;
-
-    public SpQueryResult() {
-        this.total = 0;
-        this.allDataSeries = new ArrayList<>();
-        this.spQueryStatus = SpQueryStatus.OK;
+  private int total;
+  private List<String> headers;
+  private List<DataSeries> allDataSeries;
+  private int sourceIndex;
+  private SpQueryStatus spQueryStatus;
+  private String forId;
+
+  public SpQueryResult() {
+    this.total = 0;
+    this.allDataSeries = new ArrayList<>();
+    this.spQueryStatus = SpQueryStatus.OK;
+  }
+
+  public SpQueryResult(int total, List<String> headers, List<DataSeries> allDataSeries) {
+    this.total = total;
+    this.allDataSeries = allDataSeries;
+    this.headers = headers;
+    this.spQueryStatus = SpQueryStatus.OK;
+  }
+
+  public int getTotal() {
+    return total;
+  }
+
+  public void setTotal(int total) {
+    this.total = total;
+  }
+
+  public void addDataResult(DataSeries dataSeries) {
+    if (this.allDataSeries == null) {
+      this.allDataSeries = new ArrayList<>();
     }
 
-    public SpQueryResult(int total, List<String> headers, List<DataSeries> allDataSeries) {
-        this.total = total;
-        this.allDataSeries = allDataSeries;
-        this.headers = headers;
-        this.spQueryStatus = SpQueryStatus.OK;
-    }
-
-    public int getTotal() {
-        return total;
-    }
+    this.allDataSeries.add(dataSeries);
+  }
 
-    public void addDataResult(DataSeries dataSeries) {
-        if (this.allDataSeries == null) {
-            this.allDataSeries = new ArrayList<>();
-        }
-
-        this.allDataSeries.add(dataSeries);
-    }
-
-    public List<DataSeries> getAllDataSeries() {
-        return allDataSeries;
-    }
-
-    public List<String> getHeaders() {
-        return headers;
-    }
+  public List<DataSeries> getAllDataSeries() {
+    return allDataSeries;
+  }
 
-    public void setHeaders(List<String> headers) {
-        this.headers = headers;
-    }
+  public void setAllDataSeries(List<DataSeries> allDataSeries) {
+    this.allDataSeries = allDataSeries;
+  }
 
-    public void setTotal(int total) {
-        this.total = total;
-    }
+  public List<String> getHeaders() {
+    return headers;
+  }
 
-    public int getSourceIndex() {
-        return sourceIndex;
-    }
+  public void setHeaders(List<String> headers) {
+    this.headers = headers;
+  }
 
-    public void setSourceIndex(int sourceIndex) {
-        this.sourceIndex = sourceIndex;
-    }
+  public int getSourceIndex() {
+    return sourceIndex;
+  }
 
-    public void setAllDataSeries(List<DataSeries> allDataSeries) {
-        this.allDataSeries = allDataSeries;
-    }
+  public void setSourceIndex(int sourceIndex) {
+    this.sourceIndex = sourceIndex;
+  }
 
-    public SpQueryStatus getSpQueryStatus() {
-        return spQueryStatus;
-    }
+  public SpQueryStatus getSpQueryStatus() {
+    return spQueryStatus;
+  }
 
-    public void setSpQueryStatus(SpQueryStatus spQueryStatus) {
-        this.spQueryStatus = spQueryStatus;
-    }
+  public void setSpQueryStatus(SpQueryStatus spQueryStatus) {
+    this.spQueryStatus = spQueryStatus;
+  }
 
-    public String getForId() {
-        return forId;
-    }
+  public String getForId() {
+    return forId;
+  }
 
-    public void setForId(String forId) {
-        this.forId = forId;
-    }
+  public void setForId(String forId) {
+    this.forId = forId;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/SpQueryStatus.java b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/SpQueryStatus.java
index c61b9a8bd..96187b3b8 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/SpQueryStatus.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/datalake/SpQueryStatus.java
@@ -19,6 +19,6 @@
 package org.apache.streampipes.model.datalake;
 
 public enum SpQueryStatus {
-    OK,
-    TOO_MUCH_DATA
+  OK,
+  TOO_MUCH_DATA
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/file/FileMetadata.java b/streampipes-model/src/main/java/org/apache/streampipes/model/file/FileMetadata.java
index 8675f8319..656ea6861 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/file/FileMetadata.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/file/FileMetadata.java
@@ -17,17 +17,16 @@
  */
 package org.apache.streampipes.model.file;
 
-import com.google.gson.annotations.SerializedName;
 import org.apache.streampipes.model.shared.annotation.TsModel;
 
+import com.google.gson.annotations.SerializedName;
+
 @TsModel
 public class FileMetadata {
 
-  private @SerializedName("_id")
-  String fileId;
+  private @SerializedName("_id") String fileId;
 
-  private @SerializedName("_rev")
-  String rev;
+  private @SerializedName("_rev") String rev;
 
   private String internalFilename;
   private String originalFilename;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/function/FunctionDefinition.java b/streampipes-model/src/main/java/org/apache/streampipes/model/function/FunctionDefinition.java
index 2d0ad972f..d759c9ceb 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/function/FunctionDefinition.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/function/FunctionDefinition.java
@@ -55,9 +55,9 @@ public class FunctionDefinition {
 
   @Override
   public String toString() {
-    return "FunctionDefinition{" +
-        "functionId=" + functionId.toString() +
-        ", consumedStreams=" + consumedStreams.toString() +
-        '}';
+    return String.format("FunctionDefinition{functionId='%s',consumedStreams='%s'}",
+        functionId.toString(),
+        consumedStreams.toString()
+    );
   }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/function/FunctionId.java b/streampipes-model/src/main/java/org/apache/streampipes/model/function/FunctionId.java
index bf5d7b687..262c54e09 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/function/FunctionId.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/function/FunctionId.java
@@ -26,11 +26,6 @@ public class FunctionId {
   private String id;
   private int version;
 
-  public static FunctionId from(String id,
-                                int version) {
-    return new FunctionId(id, version);
-  }
-
   public FunctionId() {
   }
 
@@ -40,27 +35,29 @@ public class FunctionId {
     this.version = version;
   }
 
-  public String getId() {
-    return id;
+  public static FunctionId from(String id,
+                                int version) {
+    return new FunctionId(id, version);
   }
 
-  public int getVersion() {
-    return version;
+  public String getId() {
+    return id;
   }
 
   public void setId(String id) {
     this.id = id;
   }
 
+  public int getVersion() {
+    return version;
+  }
+
   public void setVersion(int version) {
     this.version = version;
   }
 
   @Override
   public String toString() {
-    return "FunctionId{" +
-        "id='" + id + '\'' +
-        ", version=" + version +
-        '}';
+    return String.format("FunctionId{id='%s', version=%d}", id, version);
   }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataProcessorDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataProcessorDescription.java
index e63d33972..0899eea57 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataProcessorDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataProcessorDescription.java
@@ -50,7 +50,9 @@ public class DataProcessorDescription extends ConsumableStreamPipesEntity {
     this.category = new ArrayList<>();
   }
 
-  public DataProcessorDescription(String uri, String name, String description, String iconUrl, List<SpDataStream> spDataStreams, List<StaticProperty> staticProperties, List<OutputStrategy> outputStrategies) {
+  public DataProcessorDescription(String uri, String name, String description, String iconUrl,
+                                  List<SpDataStream> spDataStreams, List<StaticProperty> staticProperties,
+                                  List<OutputStrategy> outputStrategies) {
     super(uri, name, description, iconUrl);
     this.pathName = uri;
     this.spDataStreams = spDataStreams;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataProcessorInvocation.java b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataProcessorInvocation.java
index d09eb6831..89cac11df 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataProcessorInvocation.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataProcessorInvocation.java
@@ -71,7 +71,7 @@ public class DataProcessorInvocation extends InvocableStreamPipesEntity implemen
 
   public DataProcessorInvocation(DataProcessorDescription sepa, String domId) {
     this(sepa);
-    this.DOM = domId;
+    this.dom = domId;
   }
 
   public DataProcessorInvocation() {
@@ -79,7 +79,8 @@ public class DataProcessorInvocation extends InvocableStreamPipesEntity implemen
     inputStreams = new ArrayList<>();
   }
 
-  public DataProcessorInvocation(String uri, String name, String description, String iconUrl, String pathName, List<SpDataStream> spDataStreams, List<StaticProperty> staticProperties) {
+  public DataProcessorInvocation(String uri, String name, String description, String iconUrl, String pathName,
+                                 List<SpDataStream> spDataStreams, List<StaticProperty> staticProperties) {
     super(uri, name, description, iconUrl);
     this.pathName = pathName;
     this.inputStreams = spDataStreams;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSinkDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSinkDescription.java
index 6703e83f4..40aa13ddd 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSinkDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSinkDescription.java
@@ -25,43 +25,39 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class DataSinkDescription extends ConsumableStreamPipesEntity {
-	
-	private static final long serialVersionUID = -6553066396392585731L;
 
-	private List<String> category;
-	
-	public DataSinkDescription(String uri, String name, String description, String iconUrl)
-	{
-		super(uri, name, description, iconUrl);
-		this.spDataStreams = new ArrayList<>();
-		this.category = new ArrayList<>();
-	}
-	
-	public DataSinkDescription(DataSinkDescription other)
-	{
-		super(other);
-		this.category = new Cloner().ecTypes(other.getCategory());
-	}
-	
-	public DataSinkDescription(String uri, String name, String description)
-	{
-		this(uri, name, description, "");
-		this.category = new ArrayList<>();
-	}
-	
-	public DataSinkDescription()
-	{
-		super();
-		this.category = new ArrayList<>();
-	}
+  private static final long serialVersionUID = -6553066396392585731L;
 
-	public List<String> getCategory() {
-		return category;
-	}
+  private List<String> category;
+
+  public DataSinkDescription(String uri, String name, String description, String iconUrl) {
+    super(uri, name, description, iconUrl);
+    this.spDataStreams = new ArrayList<>();
+    this.category = new ArrayList<>();
+  }
+
+  public DataSinkDescription(DataSinkDescription other) {
+    super(other);
+    this.category = new Cloner().ecTypes(other.getCategory());
+  }
+
+  public DataSinkDescription(String uri, String name, String description) {
+    this(uri, name, description, "");
+    this.category = new ArrayList<>();
+  }
+
+  public DataSinkDescription() {
+    super();
+    this.category = new ArrayList<>();
+  }
+
+  public List<String> getCategory() {
+    return category;
+  }
+
+  public void setCategory(List<String> category) {
+    this.category = category;
+  }
 
-	public void setCategory(List<String> category) {
-		this.category = category;
-	}
 
-	
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSinkInvocation.java b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSinkInvocation.java
index eaf8142bd..f33477850 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSinkInvocation.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSinkInvocation.java
@@ -55,7 +55,7 @@ public class DataSinkInvocation extends InvocableStreamPipesEntity {
 
   public DataSinkInvocation(DataSinkDescription sec, String domId) {
     this(sec);
-    this.setDOM(domId);
+    this.setDom(domId);
   }
 
   public DataSinkInvocation() {
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSourceDescription.java b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSourceDescription.java
index 320dada35..a22e5f9e5 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSourceDescription.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/DataSourceDescription.java
@@ -30,8 +30,13 @@ import java.util.List;
 /**
  * class that represents Semantic Event Producers.
  */
+
+
+/**
+ * @deprecated  As of release 0.90.0, replaced by {@link DataSourceDescription}
+ */
 @TsModel
-@Deprecated
+@Deprecated(since = "0.90.0", forRemoval = true)
 public class DataSourceDescription extends NamedStreamPipesEntity {
 
   private static final long serialVersionUID = 5607030219013954697L;
@@ -51,7 +56,8 @@ public class DataSourceDescription extends NamedStreamPipesEntity {
     this.spDataStreams.forEach(e -> e.setCategory(Arrays.asList(this.getElementId())));
   }
 
-  public DataSourceDescription(String uri, String name, String description, String iconUrl, List<SpDataStream> spDataStreams) {
+  public DataSourceDescription(String uri, String name, String description, String iconUrl,
+                               List<SpDataStream> spDataStreams) {
     super(uri, name, description, iconUrl);
     this.spDataStreams = spDataStreams;
     this.setAppId(uri);
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/PipelineElementContainer.java b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/PipelineElementContainer.java
index c77769cb1..b427c887f 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/graph/PipelineElementContainer.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/graph/PipelineElementContainer.java
@@ -34,8 +34,7 @@ public class PipelineElementContainer extends NamedStreamPipesEntity {
     }
   }
 
-  public PipelineElementContainer(String containerId, String name, String description)
-  {
+  public PipelineElementContainer(String containerId, String name, String description) {
     super(containerId, name, description);
     this.pipelineElementDescriptions = new ArrayList<>();
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/EventGrounding.java b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/EventGrounding.java
index 3a8ff4ede..2a32bdce9 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/EventGrounding.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/EventGrounding.java
@@ -18,10 +18,11 @@
 
 package org.apache.streampipes.model.grounding;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.apache.streampipes.model.base.UnnamedStreamPipesEntity;
 import org.apache.streampipes.model.util.Cloner;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -29,55 +30,53 @@ import java.util.List;
 
 public class EventGrounding extends UnnamedStreamPipesEntity {
 
-	private static final long serialVersionUID = 3149070517282698799L;
-
-	private List<TransportProtocol> transportProtocols;
-
-	private List<TransportFormat> transportFormats;
-	
-	public EventGrounding()
-	{
-		super();
-		this.transportFormats = new ArrayList<>();
-	}
-	
-	public EventGrounding(TransportProtocol transportProtocol, TransportFormat transportFormat)
-	{
-		this();
-		this.transportFormats = new ArrayList<>();
-		this.transportFormats.add(transportFormat);
-		this.transportProtocols = Arrays.asList(transportProtocol);
-	}
-
-	public EventGrounding(EventGrounding other) {
-		super(other);
-		this.transportProtocols = new Cloner().protocols(other.getTransportProtocols());
-		this.transportFormats = new Cloner().transportFormats(other.getTransportFormats());
-	}
-
-	public List<TransportProtocol> getTransportProtocols() {
-		return transportProtocols;
-	}
-
-	public void setTransportProtocols(List<TransportProtocol> transportProtocols) {
-		this.transportProtocols = transportProtocols;
-	}
-
-	public void setTransportProtocol(TransportProtocol transportProtocol) {
-		this.transportProtocols = Collections.singletonList(transportProtocol);
-	}
-
-	@JsonIgnore
-	public TransportProtocol getTransportProtocol() {
-		return transportProtocols.get(0);
-	}
-	
-	public List<TransportFormat> getTransportFormats() {
-		return transportFormats;
-	}
-
-	public void setTransportFormats(List<TransportFormat> transportFormats) {
-		this.transportFormats = transportFormats;
-	}
-	
+  private static final long serialVersionUID = 3149070517282698799L;
+
+  private List<TransportProtocol> transportProtocols;
+
+  private List<TransportFormat> transportFormats;
+
+  public EventGrounding() {
+    super();
+    this.transportFormats = new ArrayList<>();
+  }
+
+  public EventGrounding(TransportProtocol transportProtocol, TransportFormat transportFormat) {
+    this();
+    this.transportFormats = new ArrayList<>();
+    this.transportFormats.add(transportFormat);
+    this.transportProtocols = Arrays.asList(transportProtocol);
+  }
+
+  public EventGrounding(EventGrounding other) {
+    super(other);
+    this.transportProtocols = new Cloner().protocols(other.getTransportProtocols());
+    this.transportFormats = new Cloner().transportFormats(other.getTransportFormats());
+  }
+
+  public List<TransportProtocol> getTransportProtocols() {
+    return transportProtocols;
+  }
+
+  public void setTransportProtocols(List<TransportProtocol> transportProtocols) {
+    this.transportProtocols = transportProtocols;
+  }
+
+  @JsonIgnore
+  public TransportProtocol getTransportProtocol() {
+    return transportProtocols.get(0);
+  }
+
+  public void setTransportProtocol(TransportProtocol transportProtocol) {
+    this.transportProtocols = Collections.singletonList(transportProtocol);
+  }
+
+  public List<TransportFormat> getTransportFormats() {
+    return transportFormats;
+  }
+
+  public void setTransportFormats(List<TransportFormat> transportFormats) {
+    this.transportFormats = transportFormats;
+  }
+
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/JmsTransportProtocol.java b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/JmsTransportProtocol.java
index b15686190..35f50275b 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/JmsTransportProtocol.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/JmsTransportProtocol.java
@@ -20,37 +20,34 @@ package org.apache.streampipes.model.grounding;
 
 public class JmsTransportProtocol extends TransportProtocol {
 
-	private static final long serialVersionUID = -5650426611208789835L;
-
-	private int port;
-	
-	public JmsTransportProtocol(String uri, int port, String topicName)
-	{
-		super(uri, new SimpleTopicDefinition(topicName));
-		this.port = port;
-	}
-	
-	public JmsTransportProtocol(JmsTransportProtocol other)
-	{
-		super(other);
-		this.port = other.getPort();
-	}
-	
-	public JmsTransportProtocol() 
-	{
-		super();
-	}
-	
-	public int getPort() {
-		return port;
-	}
-
-	public void setPort(int port) {
-		this.port = port;
-	}
-
-	@Override
-	public String toString() {
-		return getBrokerHostname() + ":" + getPort();
-	}
+  private static final long serialVersionUID = -5650426611208789835L;
+
+  private int port;
+
+  public JmsTransportProtocol(String uri, int port, String topicName) {
+    super(uri, new SimpleTopicDefinition(topicName));
+    this.port = port;
+  }
+
+  public JmsTransportProtocol(JmsTransportProtocol other) {
+    super(other);
+    this.port = other.getPort();
+  }
+
+  public JmsTransportProtocol() {
+    super();
+  }
+
+  public int getPort() {
+    return port;
+  }
+
+  public void setPort(int port) {
+    this.port = port;
+  }
+
+  @Override
+  public String toString() {
+    return getBrokerHostname() + ":" + getPort();
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/KafkaTransportProtocol.java b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/KafkaTransportProtocol.java
index a37a7121a..9fe5228ab 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/KafkaTransportProtocol.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/KafkaTransportProtocol.java
@@ -49,7 +49,8 @@ public class KafkaTransportProtocol extends TransportProtocol {
     this.kafkaPort = kafkaPort;
   }
 
-  public KafkaTransportProtocol(String kafkaHost, int kafkaPort, String topic, String zookeeperHost, int zookeeperPort) {
+  public KafkaTransportProtocol(String kafkaHost, int kafkaPort, String topic, String zookeeperHost,
+                                int zookeeperPort) {
     super(kafkaHost, new SimpleTopicDefinition(topic));
     this.zookeeperHost = zookeeperHost;
     this.zookeeperPort = zookeeperPort;
@@ -81,6 +82,10 @@ public class KafkaTransportProtocol extends TransportProtocol {
     super();
   }
 
+  public static long getSerialVersionUID() {
+    return serialVersionUID;
+  }
+
   public String getZookeeperHost() {
     return zookeeperHost;
   }
@@ -105,10 +110,6 @@ public class KafkaTransportProtocol extends TransportProtocol {
     this.kafkaPort = kafkaPort;
   }
 
-  public static long getSerialVersionUID() {
-    return serialVersionUID;
-  }
-
   public Integer getLingerMs() {
     return lingerMs;
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/MqttTransportProtocol.java b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/MqttTransportProtocol.java
index 5377f3f4a..8bd09cb39 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/MqttTransportProtocol.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/MqttTransportProtocol.java
@@ -1,19 +1,21 @@
 /*
- *   Licensed to the Apache Software Foundation (ASF) under one or more
- *   contributor license agreements.  See the NOTICE file distributed with
- *   this work for additional information regarding copyright ownership.
- *   The ASF licenses this file to You under the Apache License, Version 2.0
- *   (the "License"); you may not use this file except in compliance with
- *   the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
  */
+
 package org.apache.streampipes.model.grounding;
 
 public class MqttTransportProtocol extends TransportProtocol {
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/NatsTransportProtocol.java b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/NatsTransportProtocol.java
index 9e56b2fac..4b450b5f4 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/NatsTransportProtocol.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/NatsTransportProtocol.java
@@ -1,18 +1,19 @@
 /*
- *   Licensed to the Apache Software Foundation (ASF) under one or more
- *   contributor license agreements.  See the NOTICE file distributed with
- *   this work for additional information regarding copyright ownership.
- *   The ASF licenses this file to You under the Apache License, Version 2.0
- *   (the "License"); you may not use this file except in compliance with
- *   the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
  */
 
 package org.apache.streampipes.model.grounding;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TopicDefinition.java b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TopicDefinition.java
index caa05d82a..e57e4fe05 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TopicDefinition.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TopicDefinition.java
@@ -18,12 +18,13 @@
 
 package org.apache.streampipes.model.grounding;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
 import org.apache.streampipes.model.base.UnnamedStreamPipesEntity;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 @JsonSubTypes({
-        @JsonSubTypes.Type(SimpleTopicDefinition.class),
-        @JsonSubTypes.Type(WildcardTopicDefinition.class)
+    @JsonSubTypes.Type(SimpleTopicDefinition.class),
+    @JsonSubTypes.Type(WildcardTopicDefinition.class)
 })
 public abstract class TopicDefinition extends UnnamedStreamPipesEntity {
 
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TransportFormat.java b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TransportFormat.java
index 2fc003118..93d9a66ce 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TransportFormat.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TransportFormat.java
@@ -25,36 +25,33 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class TransportFormat extends UnnamedStreamPipesEntity {
-	
-	private static final long serialVersionUID = -525073244975968386L;
-
-	private List<URI> rdfType;
-
-	public TransportFormat()
-	{
-		super();
-		this.rdfType = new ArrayList<>();
-	}
-
-	public TransportFormat(String transportFormatType)
-	{
-		super();
-		this.rdfType = new ArrayList<>();
-		this.rdfType.add(URI.create(transportFormatType));
-	}
-	
-	public TransportFormat(TransportFormat other)
-	{
-		super(other);
-		this.rdfType = other.getRdfType();
-	}
-
-	public List<URI> getRdfType() {
-		return rdfType;
-	}
-
-	public void setRdfType(List<URI> rdfType) {
-		this.rdfType = rdfType;
-	}
+
+  private static final long serialVersionUID = -525073244975968386L;
+
+  private List<URI> rdfType;
+
+  public TransportFormat() {
+    super();
+    this.rdfType = new ArrayList<>();
+  }
+
+  public TransportFormat(String transportFormatType) {
+    super();
+    this.rdfType = new ArrayList<>();
+    this.rdfType.add(URI.create(transportFormatType));
+  }
+
+  public TransportFormat(TransportFormat other) {
+    super(other);
+    this.rdfType = other.getRdfType();
+  }
+
+  public List<URI> getRdfType() {
+    return rdfType;
+  }
+
+  public void setRdfType(List<URI> rdfType) {
+    this.rdfType = rdfType;
+  }
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TransportProtocol.java b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TransportProtocol.java
index b1f57f9a2..29c30a8f5 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TransportProtocol.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/grounding/TransportProtocol.java
@@ -18,57 +18,57 @@
 
 package org.apache.streampipes.model.grounding;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
 import org.apache.streampipes.model.base.UnnamedStreamPipesEntity;
 import org.apache.streampipes.model.util.Cloner;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 @JsonSubTypes({
-				@JsonSubTypes.Type(JmsTransportProtocol.class),
-				@JsonSubTypes.Type(KafkaTransportProtocol.class),
-				@JsonSubTypes.Type(MqttTransportProtocol.class),
-				@JsonSubTypes.Type(NatsTransportProtocol.class)
+    @JsonSubTypes.Type(JmsTransportProtocol.class),
+    @JsonSubTypes.Type(KafkaTransportProtocol.class),
+    @JsonSubTypes.Type(MqttTransportProtocol.class),
+    @JsonSubTypes.Type(NatsTransportProtocol.class)
 })
 public abstract class TransportProtocol extends UnnamedStreamPipesEntity {
-	
-	private static final long serialVersionUID = 7625791395504335184L;
 
-	private String brokerHostname;
+  private static final long serialVersionUID = 7625791395504335184L;
+
+  private String brokerHostname;
+
+  private TopicDefinition topicDefinition;
+
+  public TransportProtocol() {
+    super();
+  }
+
+  public TransportProtocol(String hostname, TopicDefinition topicDefinition) {
+    super();
+    this.brokerHostname = hostname;
+    this.topicDefinition = topicDefinition;
+  }
 
-	private TopicDefinition topicDefinition;
-	
-	public TransportProtocol() {
-		super();
-	}
-	
-	public TransportProtocol(String hostname, TopicDefinition topicDefinition)
-	{
-		super();
-		this.brokerHostname = hostname;
-		this.topicDefinition = topicDefinition;
-	}
+  public TransportProtocol(TransportProtocol other) {
+    super(other);
+    this.brokerHostname = other.getBrokerHostname();
+    if (other.getTopicDefinition() != null) {
+      this.topicDefinition = new Cloner().topicDefinition(other.getTopicDefinition());
+    }
+  }
 
-	public TransportProtocol(TransportProtocol other) {
-		super(other);
-		this.brokerHostname = other.getBrokerHostname();
-		if (other.getTopicDefinition() != null) {
-			this.topicDefinition = new Cloner().topicDefinition(other.getTopicDefinition());
-		}
-	}
+  public String getBrokerHostname() {
+    return brokerHostname;
+  }
 
-	public String getBrokerHostname() {
-		return brokerHostname;
-	}
+  public void setBrokerHostname(String uri) {
+    this.brokerHostname = uri;
+  }
 
-	public void setBrokerHostname(String uri) {
-		this.brokerHostname = uri;
-	}
-	
-	public TopicDefinition getTopicDefinition() {
-		return topicDefinition;
-	}
+  public TopicDefinition getTopicDefinition() {
+    return topicDefinition;
+  }
 
-	public void setTopicDefinition(TopicDefinition topicDefinition) {
-		this.topicDefinition = topicDefinition;
-	}
+  public void setTopicDefinition(TopicDefinition topicDefinition) {
+    this.topicDefinition = topicDefinition;
+  }
 
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/labeling/Category.java b/streampipes-model/src/main/java/org/apache/streampipes/model/labeling/Category.java
index 48416ef4d..b5b3b45e4 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/labeling/Category.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/labeling/Category.java
@@ -18,50 +18,63 @@
 
 package org.apache.streampipes.model.labeling;
 
-import com.fasterxml.jackson.annotation.JsonProperty;
-import com.google.gson.annotations.SerializedName;
 import org.apache.streampipes.model.shared.annotation.TsModel;
 
-import java.util.List;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.gson.annotations.SerializedName;
 
 @TsModel
 public class Category {
-    private String name;
-    private String internalName;
-    private String superLabelId;
-
-    @JsonProperty("_id")
-    private @SerializedName("_id") String id;
-
-    @JsonProperty("_rev")
-    private @SerializedName("_rev") String rev;
-
-    public Category() { }
-
-    public String getName() { return name; }
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    public String getInternalName() {
-        return internalName;
-    }
-    public void setInternalName(String internalName) {
-        this.internalName = internalName;
-    }
-
-    public String getSuperLabelId() { return superLabelId; }
-    public void setSuperLabel(String superLabelId) { this.superLabelId = superLabelId; }
-
-    public String getId() {
-        return id;
-    }
-    public void setId(String id) { this.id = id; }
-
-    public String getRev() {
-        return rev;
-    }
-    public void setRev(String rev) {
-        this.rev = rev;
-    }
+  private String name;
+  private String internalName;
+  private String superLabelId;
+
+  @JsonProperty("_id")
+  private @SerializedName("_id") String id;
+
+  @JsonProperty("_rev")
+  private @SerializedName("_rev") String rev;
+
+  public Category() {
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public String getInternalName() {
+    return internalName;
+  }
+
+  public void setInternalName(String internalName) {
+    this.internalName = internalName;
+  }
+
+  public String getSuperLabelId() {
+    return superLabelId;
+  }
+
+  public void setSuperLabel(String superLabelId) {
+    this.superLabelId = superLabelId;
+  }
+
+  public String getId() {
+    return id;
+  }
+
+  public void setId(String id) {
+    this.id = id;
+  }
+
+  public String getRev() {
+    return rev;
+  }
+
+  public void setRev(String rev) {
+    this.rev = rev;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/labeling/Label.java b/streampipes-model/src/main/java/org/apache/streampipes/model/labeling/Label.java
index 07bfd29ea..91b4c68fa 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/labeling/Label.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/labeling/Label.java
@@ -18,55 +18,72 @@
 
 package org.apache.streampipes.model.labeling;
 
+import org.apache.streampipes.model.shared.annotation.TsModel;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.gson.annotations.SerializedName;
-import org.apache.streampipes.model.shared.annotation.TsModel;
 
 @TsModel
 public class Label {
-    private String name;
-    private String color;
-    private String internalName;
-    private String categoryId;
-
-    @JsonProperty("_id")
-    private @SerializedName("_id") String id;
-
-    @JsonProperty("_rev")
-    private @SerializedName("_rev") String rev;
-
-    public Label() {
-    }
-
-    public String getName() { return name; }
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    public String getColor() { return color; }
-    public void setColor(String color) {
-        this.color = color;
-    }
-
-    public String getInternalName() {
-        return internalName;
-    }
-    public void setInternalName(String internalName) {
-        this.internalName = internalName;
-    }
-
-    public String getId() {
-        return id;
-    }
-    public void setId(String id) { this.id = id; }
-
-    public String getRev() {
-        return rev;
-    }
-    public void setRev(String rev) {
-        this.rev = rev;
-    }
-
-    public String getCategoryId() { return categoryId; };
-    public void setCategoryId(String categoryId) { this.categoryId = categoryId; }
+  private String name;
+  private String color;
+  private String internalName;
+  private String categoryId;
+
+  @JsonProperty("_id")
+  private @SerializedName("_id") String id;
+
+  @JsonProperty("_rev")
+  private @SerializedName("_rev") String rev;
+
+  public Label() {
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public String getColor() {
+    return color;
+  }
+
+  public void setColor(String color) {
+    this.color = color;
+  }
+
+  public String getInternalName() {
+    return internalName;
+  }
+
+  public void setInternalName(String internalName) {
+    this.internalName = internalName;
+  }
+
+  public String getId() {
+    return id;
+  }
+
+  public void setId(String id) {
+    this.id = id;
+  }
+
+  public String getRev() {
+    return rev;
+  }
+
+  public void setRev(String rev) {
+    this.rev = rev;
+  }
+
+  public String getCategoryId() {
+    return categoryId;
+  }
+
+  public void setCategoryId(String categoryId) {
+    this.categoryId = categoryId;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/mail/SpEmail.java b/streampipes-model/src/main/java/org/apache/streampipes/model/mail/SpEmail.java
index 3cfcaf657..a1a1efd61 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/mail/SpEmail.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/mail/SpEmail.java
@@ -25,23 +25,23 @@ public class SpEmail {
   private String subject;
   private String message;
 
-  public static SpEmail from(List<String> recipients,
-                             String subject,
-                             String message) {
-    return new SpEmail(recipients, subject, message);
-  }
-
   public SpEmail() {
   }
 
   public SpEmail(List<String> recipients,
-                  String subject,
-                  String message) {
+                 String subject,
+                 String message) {
     this.recipients = recipients;
     this.subject = subject;
     this.message = message;
   }
 
+  public static SpEmail from(List<String> recipients,
+                             String subject,
+                             String message) {
+    return new SpEmail(recipients, subject, message);
+  }
+
   public List<String> getRecipients() {
     return recipients;
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/message/DataSetModificationMessage.java b/streampipes-model/src/main/java/org/apache/streampipes/model/message/DataSetModificationMessage.java
index bf1aaeb38..ae0cc4798 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/message/DataSetModificationMessage.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/message/DataSetModificationMessage.java
@@ -27,7 +27,7 @@ public class DataSetModificationMessage extends Message {
   private String invocationId;
 
   public DataSetModificationMessage(
-          EventGrounding eventGrounding, String invocationId) {
+      EventGrounding eventGrounding, String invocationId) {
     super(true);
     this.eventGrounding = eventGrounding;
     this.invocationId = invocationId;
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/message/EdgeValidationStatus.java b/streampipes-model/src/main/java/org/apache/streampipes/model/message/EdgeValidationStatus.java
index 26448aa93..36e68cf16 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/message/EdgeValidationStatus.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/message/EdgeValidationStatus.java
@@ -29,7 +29,7 @@ public class EdgeValidationStatus {
   }
 
   public EdgeValidationStatus(EdgeValidationStatusType validationStatusType,
-                       List<Notification> notifications) {
+                              List<Notification> notifications) {
     this.validationStatusType = validationStatusType;
     this.notifications = notifications;
   }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/message/ErrorMessage.java b/streampipes-model/src/main/java/org/apache/streampipes/model/message/ErrorMessage.java
index 890043fbe..de399eea5 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/message/ErrorMessage.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/message/ErrorMessage.java
@@ -25,19 +25,20 @@ import java.util.List;
 @TsModel
 public class ErrorMessage extends Message {
 
-	public ErrorMessage() {
-		super();
-
-	}
-	public ErrorMessage(Notification...notifications) {
-		super(false, notifications);
-	}	
-	
-	public ErrorMessage(List<Notification> notifications) {
-		super(false, notifications.toArray(new Notification[0]));
-	}
-	
-	public ErrorMessage(String elementName, List<Notification> notifications) {
-		super(false, notifications, elementName);
-	}
+  public ErrorMessage() {
+    super();
+
+  }
+
+  public ErrorMessage(Notification... notifications) {
+    super(false, notifications);
+  }
+
+  public ErrorMessage(List<Notification> notifications) {
+    super(false, notifications.toArray(new Notification[0]));
+  }
+
+  public ErrorMessage(String elementName, List<Notification> notifications) {
+    super(false, notifications, elementName);
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/message/Message.java b/streampipes-model/src/main/java/org/apache/streampipes/model/message/Message.java
index a3c274002..68d2beaaf 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/message/Message.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/message/Message.java
@@ -18,85 +18,80 @@
 
 package org.apache.streampipes.model.message;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
 import org.apache.streampipes.model.shared.annotation.TsModel;
 
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
 @TsModel
 @JsonSubTypes({
-				@JsonSubTypes.Type(DataSetModificationMessage.class),
-				@JsonSubTypes.Type(ErrorMessage.class),
-				@JsonSubTypes.Type(SuccessMessage.class),
-				@JsonSubTypes.Type(PipelineModificationMessage.class),
+    @JsonSubTypes.Type(DataSetModificationMessage.class),
+    @JsonSubTypes.Type(ErrorMessage.class),
+    @JsonSubTypes.Type(SuccessMessage.class),
+    @JsonSubTypes.Type(PipelineModificationMessage.class),
 })
 public abstract class Message {
 
-	private boolean success;
-	private String elementName;
-	
-	private List<Notification> notifications;
-	
-	public Message(){
+  private boolean success;
+  private String elementName;
+
+  private List<Notification> notifications;
+
+  public Message() {
+
+  }
+
+  public Message(boolean success) {
+    this.success = success;
+    this.notifications = null;
+  }
+
+  public Message(boolean success, List<Notification> notifications) {
+    super();
+    this.success = success;
+    this.notifications = notifications;
+  }
+
+  public Message(boolean success, List<Notification> notifications, String elementName) {
+    this(success, notifications);
+    this.elementName = elementName;
+  }
+
 
+  public Message(boolean success, Notification... notifications) {
+    this.success = success;
+    this.notifications = new ArrayList<>();
+    this.notifications.addAll(Arrays.asList(notifications));
   }
 
-	public Message(boolean success){
-		this.success = success;
-		this.notifications = null;
-	}
-	
-	public Message(boolean success, List<Notification> notifications) {
-		super();
-		this.success = success;
-		this.notifications = notifications;
-	}
-	
-	public Message(boolean success, List<Notification> notifications, String elementName) {
-		this(success, notifications);
-		this.elementName = elementName;
-	}
-	
-	
-	public Message(boolean success, Notification...notifications)
-	{
-		this.success = success;
-		this.notifications = new ArrayList<>();
-		this.notifications.addAll(Arrays.asList(notifications));
-	}
-
-	public boolean isSuccess() {
-		return success;
-	}
-
-	public void setSuccess(boolean success) {
-		this.success = success;
-	}
-
-	public List<Notification> getNotifications() {
-		return notifications;
-	}
-
-	public void setNotifications(List<Notification> notifications) {
-		this.notifications = notifications;
-	}
-	
-	public boolean addNotification(Notification notification)
-	{
-		return notifications.add(notification);
-	}
-
-	public String getElementName() {
-		return elementName;
-	}
-
-	public void setElementName(String elementName) {
-		this.elementName = elementName;
-	}
-
-	
-	
-	
+  public boolean isSuccess() {
+    return success;
+  }
+
+  public void setSuccess(boolean success) {
+    this.success = success;
+  }
+
+  public List<Notification> getNotifications() {
+    return notifications;
+  }
+
+  public void setNotifications(List<Notification> notifications) {
+    this.notifications = notifications;
+  }
+
+  public boolean addNotification(Notification notification) {
+    return notifications.add(notification);
+  }
+
+  public String getElementName() {
+    return elementName;
+  }
+
+  public void setElementName(String elementName) {
+    this.elementName = elementName;
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/message/NotificationType.java b/streampipes-model/src/main/java/org/apache/streampipes/model/message/NotificationType.java
index b0a24bd89..17b187cc9 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/message/NotificationType.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/message/NotificationType.java
@@ -19,76 +19,75 @@
 package org.apache.streampipes.model.message;
 
 public enum NotificationType {
-	STORAGE_SUCCESS("Success", "Entity successfully stored"), 
-	URIOFFLINE("URI not available", "Content could not be retrieved."), 
-	NOSEPAFORMAT("Wrong Format", "Entity could not be recognized."), 
-	UNKNOWN_ERROR("Unknown Error", "An unforeseen error has occurred."), 
-	STORAGE_ERROR("Storage Error", "Entity could not be stored."),
-	PIPELINE_STORAGE_SUCCESS("Success", "Pipeline stored successfully"), 
-	PIPELINE_START_SUCCESS("Started", "Pipeline successfully started"), 
-	PIPELINE_STOP_SUCCESS("Stopped", "Pipeline stopped successfully"),
-	NO_VALID_CONNECTION("Not a valid connection", "Expected input event type does not match computed output type"),
-	NO_SEPA_FOUND("No element found", "Could not find any element that matches the output of this element."), 
-	NO_MATCHING_FORMAT_CONNECTION("Not a valid connection", "No supported input format matches produced output format"),
-	NO_MATCHING_PROTOCOL_CONNECTION("Not a valid connection", "No supported input protocol matches provided output protocol"),
-	REMOTE_SERVER_NOT_ACCESSIBLE("Can't connect to remote server", "Please contact the admin of the system"),
-	NO_MATCHING_SCHEME("The JSON from the server is not valid", "The keys in the element description don't map the keys in the JSON response"),
-
-	LOGIN_FAILED("Login failed", "Please re-enter your password"),
-	LOGIN_SUCCESS("Login success", ""),
-	REGISTRATION_FAILED("Registration failed", "Please re-enter your password"),
-	REGISTRATION_SUCCESS("Registered user successfully", ""),
-	UNAUTHORIZED("Not authorized", ""),
-	
-	ALREADY_LOGGED_IN("User already logged in", ""),
-	NOT_LOGGED_IN("User not logged in", ""),
-	LOGOUT_SUCCESS("Successfully logged out", ""),
-	
-	OPERATION_SUCCESS("Success", ""),
-	
-	VIRTUAL_SENSOR_STORAGE_SUCCESS("Success", "Pipeline block stored successfully"),
-	
-	PARSE_ERROR("Parse Exception", "Could not parse element description"),
-	WARNING_NO_ICON("Icon missing", ""),
-	WARNING_NO_NAME("Name missing", ""),
-	WARNING_NO_LABEL("Description missing", ""),
-
-	NOT_REMEMBERED("User not remembered", ""),
-	REMEMBERED("User remembered", ""),
-
-	NOT_REMOVED("Could not remove element", ""),
-	REMOVED_ACTION("Action removed", ""),
-	REMOVED_SOURCE("Source removed", ""),
-	REMOVED_SEPA("Sepa removed", ""),
-
-	ADDED_CONFIGURATION("Configuration added", ""), 
-	INSTALLATION_SUCCESSFUL("Installation successful", ""), 
-	
-	PROPERTY_FILE_WRITTEN("Writing properties file...", ""), 
-	ADMIN_USER_CREATED("Creating admin user...", ""),
-
-	PASSWORD_RECOVERY_LINK_SENT("Check your mail inbox for instructions how to reset your password", "");
-
-	private final String title;
-	private final String description;
-	
-	NotificationType(String title, String description) {
-		this.title = title;
-		this.description = description;
-	}
-	
-	public String title()
-	{
-		return title;
-	}
-	
-	public String description()
-	{
-		return description;
-	}
-	
-	public Notification uiNotification()
-	{
-		return new Notification(title, description);
-	}
+  STORAGE_SUCCESS("Success", "Entity successfully stored"),
+  URIOFFLINE("URI not available", "Content could not be retrieved."),
+  NOSEPAFORMAT("Wrong Format", "Entity could not be recognized."),
+  UNKNOWN_ERROR("Unknown Error", "An unforeseen error has occurred."),
+  STORAGE_ERROR("Storage Error", "Entity could not be stored."),
+  PIPELINE_STORAGE_SUCCESS("Success", "Pipeline stored successfully"),
+  PIPELINE_START_SUCCESS("Started", "Pipeline successfully started"),
+  PIPELINE_STOP_SUCCESS("Stopped", "Pipeline stopped successfully"),
+  NO_VALID_CONNECTION("Not a valid connection", "Expected input event type does not match computed output type"),
+  NO_SEPA_FOUND("No element found", "Could not find any element that matches the output of this element."),
+  NO_MATCHING_FORMAT_CONNECTION("Not a valid connection", "No supported input format matches produced output format"),
+  NO_MATCHING_PROTOCOL_CONNECTION("Not a valid connection",
+      "No supported input protocol matches provided output protocol"),
+  REMOTE_SERVER_NOT_ACCESSIBLE("Can't connect to remote server", "Please contact the admin of the system"),
+  NO_MATCHING_SCHEME("The JSON from the server is not valid",
+      "The keys in the element description don't map the keys in the JSON response"),
+
+  LOGIN_FAILED("Login failed", "Please re-enter your password"),
+  LOGIN_SUCCESS("Login success", ""),
+  REGISTRATION_FAILED("Registration failed", "Please re-enter your password"),
+  REGISTRATION_SUCCESS("Registered user successfully", ""),
+  UNAUTHORIZED("Not authorized", ""),
+
+  ALREADY_LOGGED_IN("User already logged in", ""),
+  NOT_LOGGED_IN("User not logged in", ""),
+  LOGOUT_SUCCESS("Successfully logged out", ""),
+
+  OPERATION_SUCCESS("Success", ""),
+
+  VIRTUAL_SENSOR_STORAGE_SUCCESS("Success", "Pipeline block stored successfully"),
+
+  PARSE_ERROR("Parse Exception", "Could not parse element description"),
+  WARNING_NO_ICON("Icon missing", ""),
+  WARNING_NO_NAME("Name missing", ""),
+  WARNING_NO_LABEL("Description missing", ""),
+
+  NOT_REMEMBERED("User not remembered", ""),
+  REMEMBERED("User remembered", ""),
+
+  NOT_REMOVED("Could not remove element", ""),
+  REMOVED_ACTION("Action removed", ""),
+  REMOVED_SOURCE("Source removed", ""),
+  REMOVED_SEPA("Sepa removed", ""),
+
+  ADDED_CONFIGURATION("Configuration added", ""),
+  INSTALLATION_SUCCESSFUL("Installation successful", ""),
+
+  PROPERTY_FILE_WRITTEN("Writing properties file...", ""),
+  ADMIN_USER_CREATED("Creating admin user...", ""),
+
+  PASSWORD_RECOVERY_LINK_SENT("Check your mail inbox for instructions how to reset your password", "");
+
+  private final String title;
+  private final String description;
+
+  NotificationType(String title, String description) {
+    this.title = title;
+    this.description = description;
+  }
+
+  public String title() {
+    return title;
+  }
+
+  public String description() {
+    return description;
+  }
+
+  public Notification uiNotification() {
+    return new Notification(title, description);
+  }
 }
diff --git a/streampipes-model/src/main/java/org/apache/streampipes/model/message/Notifications.java b/streampipes-model/src/main/java/org/apache/streampipes/model/message/Notifications.java
index 66dbe16ce..4e14af926 100644
--- a/streampipes-model/src/main/java/org/apache/streampipes/model/message/Notifications.java
+++ b/streampipes-model/src/main/java/org/apache/streampipes/model/message/Notifications.java
... 5259 lines suppressed ...