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Posted to commits@tamaya.apache.org by an...@apache.org on 2017/09/18 15:15:59 UTC

[1/2] incubator-tamaya-sandbox git commit: TAMAYA-274: Implemented OSGI integration, tested in Karaf (using Karaf shell custom commands).

Repository: incubator-tamaya-sandbox
Updated Branches:
  refs/heads/java8 c345b5c2c -> 920538603


http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertySourceCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertySourceCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertySourceCommand.java
new file mode 100644
index 0000000..fc42c54
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertySourceCommand.java
@@ -0,0 +1,59 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.tamaya.Configuration;
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.spi.PropertySource;
+import org.apache.tamaya.spi.PropertyValue;
+
+import java.io.IOException;
+
+@Command(scope = "tamaya", name = "propertysource", description="Show the current Tamaya entries of a propertysource.")
+@Service
+public class PropertySourceCommand implements Action{
+
+    @Argument(index = 0, name = "propertysource", description = "The target property source id.",
+            required = false, multiValued = false)
+    String propertysource = null;
+
+    public Object execute() throws IOException {
+        Configuration config = ConfigurationProvider.getConfiguration();
+        if(propertysource!=null){
+            PropertySource ps = config.getContext().getPropertySource(propertysource);
+            if(ps==null){
+                System.out.println("No such propertysource: " + propertysource);
+            }else {
+                System.out.println("ID: " + ps.getName());
+                System.out.println("Ordinal: " + ps.getOrdinal());
+                System.out.println("Class: " + ps.getClass().getName());
+                System.out.println("Properties:");
+                for(PropertyValue pv:ps.getProperties().values()) {
+                    System.out.println(pv);
+                }
+            }
+        }
+        return null;
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertySourcesCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertySourcesCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertySourcesCommand.java
new file mode 100644
index 0000000..74c5985
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertySourcesCommand.java
@@ -0,0 +1,48 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.tamaya.Configuration;
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.spi.PropertySource;
+import org.apache.tamaya.spi.PropertyValue;
+
+import java.io.IOException;
+
+@Command(scope = "tamaya", name = "propertysources", description="Get a list of currently registered propertysources.")
+@Service
+public class PropertySourcesCommand implements Action{
+
+    public Object execute() throws IOException {
+        Configuration config = ConfigurationProvider.getConfiguration();
+        for(PropertySource ps:config.getContext().getPropertySources()){
+            System.out.println("ID: " + ps.getName());
+            System.out.println("Ordinal: " + ps.getOrdinal());
+            System.out.println("Class: " + ps.getClass().getName());
+            System.out.println("Property Count:" + ps.getProperties().size());
+            System.out.println("---");
+        }
+        return null;
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/SetPolicyCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/SetPolicyCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/SetPolicyCommand.java
new file mode 100644
index 0000000..0a22c81
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/SetPolicyCommand.java
@@ -0,0 +1,68 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Completion;
+import org.apache.karaf.shell.api.action.lifecycle.Reference;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.karaf.shell.api.console.CommandLine;
+import org.apache.karaf.shell.api.console.Completer;
+import org.apache.karaf.shell.api.console.Session;
+import org.apache.karaf.shell.support.completers.StringsCompleter;
+import org.apache.tamaya.osgi.TamayaConfigPlugin;
+
+import java.io.IOException;
+import java.util.List;
+
+@Command(scope = "tamaya", name = "set-policy", description="Sets the current Tamaya overriding policy.")
+@Service
+public class SetPolicyCommand implements Action{
+
+    @Reference
+    private TamayaConfigPlugin configPlugin;
+
+    @Argument(index = 0, name = "operationPolicy", description = "The operation policy how Tamaya intercepts OSGI configuration.",
+            required = true, multiValued = false)
+    @Completion(OperationModeCompleter.class)
+    String policy = null;
+
+    @Override
+    public Object execute() throws IOException {
+        TamayaConfigPlugin.OperationMode opMode = TamayaConfigPlugin.OperationMode.valueOf(policy);
+        this.configPlugin.setOperationMode(opMode);
+        return null;
+    }
+
+    @Service
+    public static final class OperationModeCompleter implements Completer {
+
+        @Override
+        public int complete(Session session, CommandLine commandLine, List<String> candidates) {
+            StringsCompleter delegate = new StringsCompleter();
+            for(TamayaConfigPlugin.OperationMode mode:TamayaConfigPlugin.OperationMode.values()) {
+                delegate.getStrings().add(mode.toString());
+            }
+            return delegate.complete(session, commandLine, candidates);
+        }
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/resources/META-INF/services/org/apache/tamaya/karaf/shell/commands
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/resources/META-INF/services/org/apache/tamaya/karaf/shell/commands b/osgi/karaf-shell/src/main/resources/META-INF/services/org/apache/tamaya/karaf/shell/commands
new file mode 100644
index 0000000..7c9fb12
--- /dev/null
+++ b/osgi/karaf-shell/src/main/resources/META-INF/services/org/apache/tamaya/karaf/shell/commands
@@ -0,0 +1,27 @@
+#
+# 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 current the License at
+#
+#    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.
+#
+org.apache.tamaya.karaf.shell.ConfigCommand
+org.apache.tamaya.karaf.shell.EvaluateCMConfigCommand
+org.apache.tamaya.karaf.shell.InfoCommand
+org.apache.tamaya.karaf.shell.PropertyCommand
+org.apache.tamaya.karaf.shell.PropertySourceCommand
+org.apache.tamaya.karaf.shell.PropertySourcesCommand
+org.apache.tamaya.karaf.shell.SetPolicyCommand
+org.apache.tamaya.karaf.shell.GetPolicyCommand
+org.apache.tamaya.karaf.shell.DefaultDisableCommand

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/pom.xml
----------------------------------------------------------------------
diff --git a/osgi/pom.xml b/osgi/pom.xml
index ada48f4..4797b94 100644
--- a/osgi/pom.xml
+++ b/osgi/pom.xml
@@ -54,6 +54,16 @@
     </properties>
 
     <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.karaf.tooling</groupId>
+                    <artifactId>karaf-maven-plugin</artifactId>
+                    <version>${dependency.karaf.version}</version>
+                    <extensions>true</extensions>
+                </plugin>
+            </plugins>
+        </pluginManagement>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
@@ -278,111 +288,8 @@
 
     <modules>
         <module>common</module>
+        <module>karaf-shell</module>
         <!--<module>karaf-features</module>-->
     </modules>
 
-    <profiles>
-        <profile>
-            <id>felix-osgi6</id>
-            <activation>
-                <activeByDefault>true</activeByDefault>
-                <property>
-                    <name>pax.exam.framework</name>
-                    <value>felix</value>
-                </property>
-            </activation>
-            <properties>
-                <pax.exam.framework>felix</pax.exam.framework>
-            </properties>
-            <dependencyManagement>
-                <dependencies>
-                    <dependency>
-                        <groupId>org.apache.felix</groupId>
-                        <artifactId>org.apache.felix.framework</artifactId>
-                        <version>4.6.1</version>
-                    </dependency>
-                </dependencies>
-            </dependencyManagement>
-            <dependencies>
-                <dependency>
-                    <groupId>org.apache.felix</groupId>
-                    <artifactId>org.apache.felix.framework</artifactId>
-                </dependency>
-            </dependencies>
-        </profile>
-        <profile>
-            <id>equinox</id>
-            <activation>
-                <activeByDefault>false</activeByDefault>
-                <property>
-                    <name>pax.exam.framework</name>
-                    <value>equinox</value>
-                </property>
-            </activation>
-            <properties>
-                <pax.exam.framework>equinox</pax.exam.framework>
-            </properties>
-            <dependencies>
-                <dependency>
-                    <groupId>org.eclipse.tycho</groupId>
-                    <artifactId>org.eclipse.osgi</artifactId>
-                </dependency>
-            </dependencies>
-        </profile>
-        <profile>
-            <id>equinox-osgi6</id>
-            <activation>
-                <activeByDefault>false</activeByDefault>
-                <property>
-                    <name>pax.exam.framework</name>
-                    <value>equinox</value>
-                </property>
-            </activation>
-            <properties>
-                <pax.exam.framework>equinox</pax.exam.framework>
-            </properties>
-            <dependencyManagement>
-                <dependencies>
-                    <dependency>
-                        <groupId>org.eclipse.tycho</groupId>
-                        <artifactId>org.eclipse.osgi</artifactId>
-                        <version>3.10.0.v20140606-1445</version>
-                    </dependency>
-                </dependencies>
-            </dependencyManagement>
-            <dependencies>
-                <dependency>
-                    <groupId>org.eclipse.tycho</groupId>
-                    <artifactId>org.eclipse.osgi</artifactId>
-                </dependency>
-            </dependencies>
-        </profile>
-        <!--<profile>-->
-            <!--<id>knopflerfish</id>-->
-            <!--<activation>-->
-                <!--<activeByDefault>false</activeByDefault>-->
-                <!--<property>-->
-                    <!--<name>pax.exam.framework</name>-->
-                    <!--<value>knopflerfish</value>-->
-                <!--</property>-->
-            <!--</activation>-->
-            <!--<properties>-->
-                <!--<pax.exam.framework>knopflerfish</pax.exam.framework>-->
-            <!--</properties>-->
-            <!--<repositories>-->
-                <!--<repository>-->
-                    <!--<id>knopflerfish-releases</id>-->
-                    <!--<url>http://www.knopflerfish.org/maven2</url>-->
-                <!--</repository>-->
-            <!--</repositories>-->
-            <!--<dependencies>-->
-                <!--<dependency>-->
-                    <!--<groupId>org.knopflerfish</groupId>-->
-                    <!--<artifactId>framework</artifactId>-->
-                    <!--<version>6.0.4</version>-->
-                <!--</dependency>-->
-            <!--</dependencies>-->
-        <!--</profile>-->
-    </profiles>
-
 </project>


[2/2] incubator-tamaya-sandbox git commit: TAMAYA-274: Implemented OSGI integration, tested in Karaf (using Karaf shell custom commands).

Posted by an...@apache.org.
TAMAYA-274: Implemented OSGI integration, tested in Karaf (using Karaf shell custom commands).


Project: http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/commit/92053860
Tree: http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/tree/92053860
Diff: http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/diff/92053860

Branch: refs/heads/java8
Commit: 920538603ef43802b16f60eb8ef41b55b96e6c15
Parents: c345b5c
Author: anatole <an...@apache.org>
Authored: Mon Sep 18 17:15:43 2017 +0200
Committer: anatole <an...@apache.org>
Committed: Mon Sep 18 17:15:43 2017 +0200

----------------------------------------------------------------------
 osgi/common/bnd.bnd                             |   7 +-
 osgi/common/pom.xml                             |   6 +-
 .../java/org/apache/tamaya/osgi/Activator.java  |  49 +--
 .../tamaya/osgi/DefaultOSGIConfigMapper.java    |  45 +++
 .../apache/tamaya/osgi/OSGIConfigMapper.java    |  38 +++
 .../tamaya/osgi/OSGIConfigRootMapper.java       |  36 ---
 .../tamaya/osgi/TamayaConfigAdminImpl.java      | 170 -----------
 .../apache/tamaya/osgi/TamayaConfigPlugin.java  | 295 +++++++++++++++++++
 .../tamaya/osgi/TamayaOSGIConfiguration.java    | 139 ---------
 .../apache/tamaya/osgi/attic/ConfigPrinter.java | 115 ++++++++
 .../tamaya/osgi/attic/ConfigPrinterService.java |  28 ++
 .../osgi/attic/TamayaConfigAdminImpl.java       | 167 +++++++++++
 .../osgi/attic/TamayaOSGIConfiguration.java     | 139 +++++++++
 .../tamaya/osgi/TamayaConfigAdminImplTest.java  |  75 -----
 osgi/karaf-features/pom.xml                     |  60 +---
 osgi/karaf-shell/bnd.bnd                        |  37 +++
 osgi/karaf-shell/pom.xml                        |  71 +++++
 .../tamaya/karaf/shell/ConfigCommand.java       |  50 ++++
 .../karaf/shell/DefaultDisableCommand.java      |  68 +++++
 .../karaf/shell/EvaluateCMConfigCommand.java    |  63 ++++
 .../tamaya/karaf/shell/GetPolicyCommand.java    |  42 +++
 .../apache/tamaya/karaf/shell/InfoCommand.java  |  46 +++
 .../tamaya/karaf/shell/PropertyCommand.java     |  75 +++++
 .../karaf/shell/PropertySourceCommand.java      |  59 ++++
 .../karaf/shell/PropertySourcesCommand.java     |  48 +++
 .../tamaya/karaf/shell/SetPolicyCommand.java    |  68 +++++
 .../org/apache/tamaya/karaf/shell/commands      |  27 ++
 osgi/pom.xml                                    | 115 +-------
 28 files changed, 1538 insertions(+), 600 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/bnd.bnd
----------------------------------------------------------------------
diff --git a/osgi/common/bnd.bnd b/osgi/common/bnd.bnd
index 56e697f..22c802c 100644
--- a/osgi/common/bnd.bnd
+++ b/osgi/common/bnd.bnd
@@ -10,9 +10,9 @@ javac.source: 1.8
 javac.target: 1.8
 
 Bundle-Version: ${version}.${tstamp}
-Bundle-Name: Apache Tamaya - OSGI ConfigAdmin
+Bundle-Name: Apache Tamaya - OSGI ConfigurationPlugin
 Bundle-SymbolicName: org.apache.tamaya.osgi
-Bundle-Description: Apacha Tamaya Configuration - OSGI ConfigAdmin
+Bundle-Description: Apacha Tamaya Configuration - OSGI ConfigurationPlugin
 Bundle-Category: Implementation
 Bundle-Copyright: (C) Apache Foundation
 Bundle-License: Apache Licence version 2
@@ -29,4 +29,5 @@ Import-Package: \
     org.apache.tamaya.spi,\
     org.apache.tamaya.functions,\
     org.apache.tamaya.spisupport
-Export-Service:   org.osgi.service.cm.ConfigurationAdmin
+Export-Service:   org.osgi.service.cm.ConfigurationPlugin,\
+    org.apache.tamaya.osgi.TamayaConfigPlugin

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/pom.xml
----------------------------------------------------------------------
diff --git a/osgi/common/pom.xml b/osgi/common/pom.xml
index e0a5411..9455104 100644
--- a/osgi/common/pom.xml
+++ b/osgi/common/pom.xml
@@ -29,14 +29,14 @@
 
     <artifactId>tamaya-osgi_alpha</artifactId>
     <packaging>jar</packaging>
-    <name>Apache Tamaya :: OSGi Integration :: ConfigAdmin</name>
-    <description>Tamaya Based OSGI Implementation of ConfigAdmin and Config Injection</description>
+    <name>Apache Tamaya :: OSGi Integration :: ConfigurationPlugin</name>
+    <description>Tamaya Based OSGI ConfigurationPlugin Implementation</description>
 
     <dependencies>
         <dependency>
             <groupId>org.osgi</groupId>
             <artifactId>org.osgi.core</artifactId>
-            <scope>test</scope>
+            <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.osgi</groupId>

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/Activator.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/Activator.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/Activator.java
index 83e1acf..d6c5726 100644
--- a/osgi/common/src/main/java/org/apache/tamaya/osgi/Activator.java
+++ b/osgi/common/src/main/java/org/apache/tamaya/osgi/Activator.java
@@ -18,11 +18,11 @@
  */
 package org.apache.tamaya.osgi;
 
-import org.osgi.framework.BundleActivator;
-import org.osgi.framework.BundleContext;
-import org.osgi.framework.Constants;
-import org.osgi.framework.ServiceRegistration;
+import org.osgi.framework.*;
+import org.osgi.service.cm.Configuration;
 import org.osgi.service.cm.ConfigurationAdmin;
+import org.osgi.service.cm.ConfigurationPlugin;
+import org.osgi.service.component.annotations.Reference;
 
 import java.util.Dictionary;
 import java.util.Hashtable;
@@ -40,31 +40,44 @@ import java.util.logging.Logger;
  */
 public class Activator implements BundleActivator {
 
-    private static final String SERVICE_RANKING_PROP = "org.apache.tamaya.osgi.cm.ranking";
-
-    private static final Integer DEFAULT_RANKING = 10;
+    private static final Integer DEFAULT_RANKING = 100000;
 
     private static final Logger LOG = Logger.getLogger(Activator.class.getName());
 
-    private ServiceRegistration<ConfigurationAdmin> registration;
+    private ServiceRegistration<?> registration;
+
 
     @Override
     public void start(BundleContext context) throws Exception {
-        Dictionary<String, Object> props = new Hashtable<>();
-        String ranking = context.getProperty(SERVICE_RANKING_PROP);
+        ServiceReference<ConfigurationAdmin> cmRef = context.getServiceReference(ConfigurationAdmin.class);
+        ConfigurationAdmin cm = context.getService(cmRef);
+        Configuration configuration = cm.getConfiguration("tamaya-osgi", null);
+        Dictionary<String, Object> props = null;
+        if (configuration != null
+                && configuration.getProperties() != null) {
+            props = configuration.getProperties();
+        } else {
+            props = new Hashtable<>();
+        }
+        String ranking = context.getProperty(Constants.SERVICE_RANKING);
         if (ranking == null) {
-            ranking = System.getProperty(SERVICE_RANKING_PROP);
+            ranking = System.getProperty(Constants.SERVICE_RANKING);
         }
         if (ranking == null) {
-            props.put(Constants.SERVICE_RANKING, DEFAULT_RANKING);
-            LOG.fine("Using default ranking for Tamaya OSGI ConfigAdmin service: " + DEFAULT_RANKING);
+            ranking = DEFAULT_RANKING.toString();
+            LOG.fine("Using default ranking for Tamaya OSGI Config plugin: " + DEFAULT_RANKING);
         } else {
-            props.put(Constants.SERVICE_RANKING, Integer.valueOf(ranking));
-            LOG.fine("Using custom ranking for Tamaya OSGI ConfigAdmin service: " + ranking);
+            ranking = Integer.valueOf(ranking).toString();
+            LOG.fine("Using custom ranking for Tamaya OSGI Config plugin: " + ranking);
         }
-        TamayaConfigAdminImpl cm = new TamayaConfigAdminImpl(context);
-        registration = context.registerService(ConfigurationAdmin.class, cm, props);
-        LOG.info("Registered Tamaya OSGI ConfigAdmin service.");
+        props.put(Constants.SERVICE_RANKING, DEFAULT_RANKING);
+        TamayaConfigPlugin plugin = new TamayaConfigPlugin(context);
+        LOG.info("Registering Tamaya OSGI Config plugin with ranking: " + ranking);
+        registration = context.registerService(
+                TamayaConfigPlugin.class,
+                plugin, props);
+        LOG.info("Registered Tamaya OSGI Config plugin.");
+        configuration.update(props);
     }
 
     @Override

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/DefaultOSGIConfigMapper.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/DefaultOSGIConfigMapper.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/DefaultOSGIConfigMapper.java
new file mode 100644
index 0000000..861efb2
--- /dev/null
+++ b/osgi/common/src/main/java/org/apache/tamaya/osgi/DefaultOSGIConfigMapper.java
@@ -0,0 +1,45 @@
+/*
+ * 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
+ *
+ * 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.tamaya.osgi;
+
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.functions.ConfigurationFunctions;
+import org.osgi.framework.ServiceReference;
+
+import java.util.Arrays;
+
+/**
+ * Created by atsticks on 18.09.17.
+ */
+public class DefaultOSGIConfigMapper implements OSGIConfigMapper {
+
+    @Override
+    public org.apache.tamaya.Configuration getConfiguration(String pid) {
+        if (pid != null) {
+            return ConfigurationProvider.getConfiguration()
+                    .with(ConfigurationFunctions.section("[" + pid + ']', true));
+        }
+        return null;
+    }
+
+    @Override
+    public String toString() {
+        return "Default OSGIConfigRootMapper([symbolicName:version/properties] -> [bundle:symbolicName]";
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/OSGIConfigMapper.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/OSGIConfigMapper.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/OSGIConfigMapper.java
new file mode 100644
index 0000000..3841d4b
--- /dev/null
+++ b/osgi/common/src/main/java/org/apache/tamaya/osgi/OSGIConfigMapper.java
@@ -0,0 +1,38 @@
+/*
+ * 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
+ *
+ * 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.tamaya.osgi;
+
+import org.apache.tamaya.Configuration;
+import org.osgi.framework.ServiceReference;
+
+/**
+ * Mapping function for mapping Tamaya configuration sections to OSGI pids.
+ */
+public interface OSGIConfigMapper {
+
+    /**
+     * Map the given OSGI pid to a corresponding configuration section in Tamaya. Es an example (and this is also the
+     * default implemented) a configuration mapping for {@code pid/factoryPid==myBundle} could be {@code [bundle:myBundle]}.
+     * This mapping is used as a prefix when collecting the corresponding entries for the OSGI configuration.
+     * @param pid the OSGI pid, or null
+     * @return return the corresponding config root section. For ommitting any root section simply return an empty
+     * String.
+     */
+    Configuration getConfiguration(String pid);
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/OSGIConfigRootMapper.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/OSGIConfigRootMapper.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/OSGIConfigRootMapper.java
deleted file mode 100644
index 79cc387..0000000
--- a/osgi/common/src/main/java/org/apache/tamaya/osgi/OSGIConfigRootMapper.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * 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
- *
- * 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.tamaya.osgi;
-
-/**
- * Mapping function for mapping Tamaya configuration sections to OSGI pids.
- */
-public interface OSGIConfigRootMapper {
-
-    /**
-     * Map the given OSGI pid to a corresponding configuration section in Tamaya. Es an example (and this is also the
-     * default implemented) a configuration mapping for {@code pid/factoryPid==myBundle} could be {@code [bundle:myBundle]}.
-     * This mapping is used as a prefix when collecting the corresponding entries for the OSGI configuration.
-     * @param pid the OSGI pid, or null
-     * @param factoryPid the OSGI factoryPid, or null
-     * @return return the corresponding config root section. For ommitting any root section simply return an empty
-     * String.
-     */
-    String getTamayaConfigRoot(String pid, String factoryPid);
-}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaConfigAdminImpl.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaConfigAdminImpl.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaConfigAdminImpl.java
deleted file mode 100644
index d9ba1bf..0000000
--- a/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaConfigAdminImpl.java
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * 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
- *
- * 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.tamaya.osgi;
-
-import java.io.IOException;
-import java.lang.ref.WeakReference;
-import java.util.*;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import org.osgi.framework.BundleContext;
-import org.osgi.framework.Filter;
-import org.osgi.framework.InvalidSyntaxException;
-import org.osgi.framework.ServiceReference;
-import org.osgi.service.cm.Configuration;
-import org.osgi.service.cm.ConfigurationAdmin;
-
-/**
- * Tamaya based implementation of an OSGI {@link ConfigurationAdmin}.
- */
-public class TamayaConfigAdminImpl implements ConfigurationAdmin {
-    /** the logger. */
-    private static final Logger LOG = Logger.getLogger(TamayaConfigAdminImpl.class.getName());
-
-    /** The OSGI context. */
-    private final BundleContext context;
-    /** THe optional OSGI parent service. */
-    private ConfigurationAdmin parent;
-    /** The cached configurations. */
-    private Map<String,Configuration> configs = new ConcurrentHashMap<>();
-    /** The configuration section mapper. */
-    private OSGIConfigRootMapper configRootMapper;
-
-    /**
-     * Create a new config.
-     * @param context the OSGI context
-     */
-    TamayaConfigAdminImpl(BundleContext context) {
-        this.context = context;
-        this.configRootMapper = loadConfigRootMapper();
-    }
-
-    @Override
-    public Configuration createFactoryConfiguration(String factoryPid) throws IOException {
-        return createFactoryConfiguration(factoryPid, null);
-    }
-
-    @Override
-    public Configuration createFactoryConfiguration(String factoryPid, String location) throws IOException {
-        String key = "factory:"+factoryPid;
-        if(location!=null){
-            key += "::"+location;
-        }
-        Configuration config = this.configs.get(key);
-        if (config == null) {
-            Dictionary<String, Object> parentConfig = getParentConfig(null, factoryPid, location);
-            config = new TamayaOSGIConfiguration(null, factoryPid, configRootMapper, parentConfig);
-            this.configs.put(key, config);
-        }
-        return config;
-    }
-
-    @Override
-    public Configuration getConfiguration(String pid, String location) throws IOException {
-        String key = "config:"+pid;
-        if(location!=null){
-            key += "::"+location;
-        }
-        Configuration  config = this.configs.get(key);
-        if (config == null) {
-            Dictionary<String, Object> parentConfig = getParentConfig(pid, null, location);
-            config = new TamayaOSGIConfiguration(pid, null, configRootMapper, parentConfig);
-            this.configs.put(key, config);
-        }
-        return config;
-    }
-
-    @Override
-    public Configuration getConfiguration(String pid) throws IOException {
-        return getConfiguration(pid, null);
-    }
-
-    private Dictionary<String, Object> getParentConfig(String pid, String factoryPid, String location) {
-        Dictionary<String, Object> parentConfig = null;
-        if (context != null) {
-            try {
-                ServiceReference[] refs = context.getAllServiceReferences(ConfigurationAdmin.class.getName(), null);
-                for (ServiceReference<ConfigurationAdmin> ref : refs) {
-                    ConfigurationAdmin parentCand = context.getService(ref);
-                    if (parentCand != null && !(parentCand instanceof TamayaConfigAdminImpl)) {
-                        try {
-                            parentConfig = parentCand.getConfiguration(pid, factoryPid).getProperties();
-                        } catch (IOException e) {
-                            LOG.log(Level.WARNING, "Error reading parent OSGI config.", e);
-                        }
-                    }
-                }
-            } catch (Exception e) {
-                LOG.log(Level.SEVERE, "Cannot not evaluate parent/base OSGI config.", e);
-            }
-        }
-        return parentConfig;
-    }
-
-    @Override
-    public Configuration[] listConfigurations(String filter) throws IOException, InvalidSyntaxException {
-        List<Configuration> result = new ArrayList<>();
-        if (filter == null || context == null) {
-            return this.configs.values().toArray(new Configuration[this.configs.size()]);
-        } else {
-            Filter flt = context.createFilter(filter);
-            for(Configuration config:this.configs.values()) {
-                if (flt.match(config.getProperties())) {
-                    result.add(config);
-                }
-            }
-            return result.toArray(new Configuration[result.size()]);
-        }
-    }
-
-    /**
-     * Loads the configuration toor mapper using the OSGIConfigRootMapper OSGI service resolving mechanism. If no
-     * such service is available it loads the default mapper.
-     * @return the mapper to be used, bever null.
-     */
-    private OSGIConfigRootMapper loadConfigRootMapper() {
-        OSGIConfigRootMapper mapper = null;
-        if(context!=null) {
-            ServiceReference<OSGIConfigRootMapper> ref = context.getServiceReference(OSGIConfigRootMapper.class);
-            if (ref != null) {
-                mapper = context.getService(ref);
-            }
-        }
-        if(mapper==null){
-            mapper = new OSGIConfigRootMapper() {
-                @Override
-                public String getTamayaConfigRoot(String pid, String factoryPid) {
-                    if(pid!=null) {
-                        return "[" + pid +']';
-                    } else{
-                        return "[" + factoryPid +']';
-                    }
-                }
-                @Override
-                public String toString(){
-                    return "Default OSGIConfigRootMapper(pid -> [bundle:pid], factoryPid -> [bundle:factoryPid]";
-                }
-            };
-        }
-        return mapper;
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaConfigPlugin.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaConfigPlugin.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaConfigPlugin.java
new file mode 100644
index 0000000..509a3d0
--- /dev/null
+++ b/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaConfigPlugin.java
@@ -0,0 +1,295 @@
+/*
+ * 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
+ *
+ * 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.tamaya.osgi;
+
+import org.osgi.framework.*;
+import org.osgi.service.cm.Configuration;
+import org.osgi.service.cm.ConfigurationAdmin;
+import org.osgi.service.cm.ConfigurationPlugin;
+
+import java.io.IOException;
+import java.util.*;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Tamaya plugin that updates/extends the component configurations managed
+ * by {@link ConfigurationAdmin}, based on the configured {@link OperationMode}.
+ */
+public class TamayaConfigPlugin {
+    static final String COMPONENTID = "TamayaConfigPlugin";
+    /** the logger. */
+    private static final Logger LOG = Logger.getLogger(TamayaConfigPlugin.class.getName());
+    private static final OSGIConfigMapper DEFAULT_CONFIG_MAPPER = new DefaultOSGIConfigMapper();
+    private static final String TAMAYA_DISABLED = "tamaya.disabled";
+    private boolean disabled = false;
+
+    /**
+     * Operation mode applied to the config read.
+     */
+    public enum OperationMode{
+        /** Only add properties not existing in the config. */
+        EXTEND,
+        /** Only override existing properties, but do not add any new ones. */
+        OVERRIDE,
+        /** Override existing properties and add new properties, but do not remove
+         * properties not existing in Tamaya. */
+        EXTEND_AND_OVERRIDE,
+        /** Use Tamaya config only. */
+        SYNCH
+    }
+
+    private BundleContext context;
+    private OperationMode opMode = OperationMode.EXTEND_AND_OVERRIDE;
+    private ConfigurationAdmin cm;
+
+    /**
+     * Create a new config.
+     * @param context the OSGI context
+     */
+    TamayaConfigPlugin(BundleContext context) {
+        this.context = context;
+        ServiceReference<ConfigurationAdmin> cmRef = context.getServiceReference(ConfigurationAdmin.class);
+        this.cm = context.getService(cmRef);
+        initDefaultOpMode();
+        initConfigs();
+    }
+
+    private void initConfigs() {
+        // Check for matching bundles already installed...
+        for(Bundle bundle:context.getBundles()){
+            switch(bundle.getState()){
+                case Bundle.ACTIVE:
+                    configureBundle(bundle);
+                    break;
+            }
+        }
+    }
+
+    private void configureBundle(Bundle bundle) {
+        // Optional MANIFEST entries
+        String enabledTamaya = bundle.getHeaders().get("Tamaya-Enabled");
+        String disabledTamaya = bundle.getHeaders().get("Tamaya-Disabled");
+
+        if(Boolean.parseBoolean(disabledTamaya)){
+            LOG.finest("Bundle is disabled for Tamaya: " + bundle.getSymbolicName());
+            return;
+        }
+        if(enabledTamaya != null && !Boolean.parseBoolean(enabledTamaya)){
+            LOG.finest("Bundle is disabled for Tamaya: " + bundle.getSymbolicName());
+            return;
+        }
+        if(disabled){
+            LOG.finest("tamaya.disabled=false: not configuring bundle: " + bundle.getSymbolicName());
+            return;
+        }
+
+        String tamayaPid = bundle.getHeaders().get("Tamaya-PID");
+        String pid = tamayaPid!=null?tamayaPid:bundle.getSymbolicName();
+        if(pid==null){
+            pid = bundle.getLocation();
+        }
+        if(pid==null){
+            LOG.finest(() -> "No PID/location for bundle " + bundle.getSymbolicName() + '('+bundle.getBundleId()+')');
+            return;
+        }
+        LOG.finest("Evaluating Tamaya Config for PID: " + pid);
+        org.apache.tamaya.Configuration tamayaConfig = configMapper().getConfiguration(pid);
+        if (tamayaConfig == null) {
+            LOG.finest("No Tamaya configuration for PID: " + pid);
+            return;
+        }
+        try {
+            // TODO Check for Bundle.getLocation() usage here...
+            Configuration osgiConfig = cm.getConfiguration(pid, bundle.getLocation());
+            if(osgiConfig!=null){
+                Dictionary<String, Object> dictionary = osgiConfig.getProperties();
+                if(dictionary==null){
+                    dictionary = new Hashtable<>();
+                }
+                modifyConfiguration(pid, tamayaConfig, dictionary);
+                if(!dictionary.isEmpty()) {
+                    osgiConfig.update(dictionary);
+                    LOG.info("Updated configuration for PID: " + pid + ": " + dictionary);
+                }
+            }
+        } catch (Exception e) {
+            LOG.log(Level.WARNING, "Failed to initialize configuration for PID: " + pid, e);
+        }
+    }
+
+    private void initDefaultOpMode() {
+        String opVal = (String)getConfigValue(OperationMode.class.getName());
+        if(opVal!=null){
+            try{
+                opMode = OperationMode.valueOf(opVal);
+            }catch(Exception e){
+                LOG.warning("Invalid OperationMode: " + opMode +", using default: " + opMode);
+            }
+        }
+    }
+
+    private void initDefaultEnabled() {
+        String disabledVal = (String)getConfigValue("tamaya.disabled");
+        if(disabledVal==null){
+            disabledVal = System.getProperty("tamaya.disabled");
+        }
+        if(disabledVal!=null){
+            this.disabled = Boolean.parseBoolean(disabledVal);
+            if(this.disabled) {
+                LOG.info("Tamaya Config is disabled by default. Add Tamaya-Enabled to your bundle manifests to enable it.");
+            }else{
+                LOG.info("Tamaya Config is enabled by default. Add Tamaya-Disabled to your bundle manifests to disable it.");
+            }
+        }
+    }
+
+
+    void setConfigValue(String key, Object value){
+        Configuration config = null;
+        try {
+            config = cm.getConfiguration(COMPONENTID);
+            Dictionary<String, Object> props = null;
+            if (config != null
+                    && config.getProperties() != null) {
+                props = config.getProperties();
+            } else {
+                props = new Hashtable<String, Object>();
+            }
+            Object val = props.get(key);
+            if(val==null) {
+                props.put(key, value);
+                config.update(props);
+            }
+            LOG.finest("Updated Tamaya Plugin config: "+key + "=" + value);
+        } catch (IOException e) {
+            LOG.log(Level.WARNING, "Error writing Tamaya config.", e);
+        }
+    }
+
+    Object getConfigValue(String key){
+        Configuration config = null;
+        try {
+            config = cm.getConfiguration(COMPONENTID);
+            Dictionary<String, Object> props = null;
+            if (config != null
+                    && config.getProperties() != null) {
+                props = config.getProperties();
+            }
+            if(props!=null){
+                return props.get(key);
+            }
+        } catch (IOException e) {
+            LOG.log(Level.WARNING, "Error reading Tamaya config.", e);
+        }
+        return null;
+    }
+
+    public OperationMode getOperationMode(){
+        return opMode;
+    }
+
+    public void setDefaultDisabled(boolean disabled){
+        this.disabled = disabled;
+        setConfigValue(TAMAYA_DISABLED, disabled);
+    }
+
+    public boolean isDefaultDisabled(){
+        return disabled;
+    }
+
+    public void setOperationMode(OperationMode mode){
+        this.opMode = Objects.requireNonNull(mode);
+        setConfigValue(OperationMode.class.getSimpleName(), opMode.toString());
+    }
+
+    public void modifyConfiguration(String target, org.apache.tamaya.Configuration config, Dictionary<String, Object> dictionary) {
+        LOG.info(() -> "Updating configuration for " + target + "...");
+        dictionary.put("tamaya.opMode", getOperationMode().toString());
+        dictionary.put("tamaya.modified.at", new Date().toString());
+
+        Map<String, Object> dictionaryMap = new HashMap<>();
+        Enumeration<String> keys = dictionary.keys();
+        while (keys.hasMoreElements()) {
+            String key = keys.nextElement();
+            Object value = dictionary.get(key);
+            dictionaryMap.put(key, value);
+        }
+        for (Map.Entry<String, Object> dictEntry : dictionaryMap.entrySet()) {
+            Object configuredValue = config.getOrDefault(dictEntry.getKey(), dictEntry.getValue().getClass(), null);
+            switch (opMode) {
+                case OVERRIDE:
+                case EXTEND_AND_OVERRIDE:
+                    if (configuredValue != null) {
+                        LOG.info(() -> "Setting key " + dictEntry.getKey() + " to " + configuredValue);
+                        dictionary.put(dictEntry.getKey(), configuredValue);
+                    }
+                    break;
+                case SYNCH:
+                    if (configuredValue != null) {
+                        LOG.info(() -> "Setting key " + dictEntry.getKey() + " to " + configuredValue);
+                        dictionary.put(dictEntry.getKey(), configuredValue);
+                    } else {
+                        LOG.info(() -> "Removing key " + dictEntry.getKey());
+                        dictionary.remove(dictEntry.getKey());
+                    }
+            }
+        }
+        for (Map.Entry<String, String> configEntry : config.getProperties().entrySet()) {
+            Object dictValue = dictionary.get(configEntry.getKey());
+            switch (opMode) {
+                case EXTEND:
+                case EXTEND_AND_OVERRIDE:
+                    LOG.info(() -> "Setting key " + configEntry.getKey() + " to " + configEntry.getValue());
+                    dictionary.put(configEntry.getKey(), configEntry.getValue());
+                    break;
+                case SYNCH:
+                    if (dictValue != null) {
+                        LOG.info(() -> "Setting key " + configEntry.getKey() + " to " + configEntry.getValue());
+                        dictionary.put(configEntry.getKey(), configEntry.getValue());
+                    } else {
+                        LOG.info(() -> "Removing key " + configEntry.getKey());
+                        dictionary.remove(configEntry.getKey());
+                    }
+                    break;
+            }
+        }
+    }
+
+    /**
+     * Loads the configuration toor mapper using the OSGIConfigRootMapper OSGI service resolving mechanism. If no
+     * such service is available it loads the default mapper.
+     * @return the mapper to be used, bever null.
+     */
+    private OSGIConfigMapper configMapper() {
+        OSGIConfigMapper mapper = null;
+        if(context!=null) {
+            ServiceReference<OSGIConfigMapper> ref = context.getServiceReference(OSGIConfigMapper.class);
+            if (ref != null) {
+                mapper = context.getService(ref);
+            }
+        }
+        if(mapper==null){
+            return DEFAULT_CONFIG_MAPPER;
+        }
+        return mapper;
+    }
+
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaOSGIConfiguration.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaOSGIConfiguration.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaOSGIConfiguration.java
deleted file mode 100644
index 962cc38..0000000
--- a/osgi/common/src/main/java/org/apache/tamaya/osgi/TamayaOSGIConfiguration.java
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * 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
- *
- * 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.tamaya.osgi;
-
-import java.io.IOException;
-import java.util.*;
-import java.util.logging.Logger;
-
-import org.apache.tamaya.ConfigurationProvider;
-import org.apache.tamaya.functions.ConfigurationFunctions;
-import org.osgi.service.cm.Configuration;
-
-/**
- * Tamaya based implementation of an OSGI {@link Configuration}.
- */
-public class TamayaOSGIConfiguration implements Configuration {
-    private static final Logger LOG = Logger.getLogger(TamayaOSGIConfiguration.class.getName());
-    private final Dictionary<String, Object> parentConfig;
-    private final String pid;
-    private final String factoryPid;
-    private OSGIConfigRootMapper rootMapper;
-    private boolean overriding = true;
-    private String bundleLocation;
-
-    /**
-     * Constructor.
-     * @param confPid the OSGI pid
-     * @param factoryPid the factory pid
-     * @param configRootMapper the mapper that maps the pids to a tamaya root section.
-     * @param parentConfig the OSGI config for the given context, may be null..
-     */
-    TamayaOSGIConfiguration(String confPid, String factoryPid, OSGIConfigRootMapper configRootMapper,
-                            Dictionary<String, Object> parentConfig) {
-        this.pid = confPid;
-        this.factoryPid = factoryPid;
-        this.parentConfig = parentConfig;
-        this.rootMapper = Objects.requireNonNull(configRootMapper);
-    }
-
-    public boolean isOverriding() {
-        return overriding;
-    }
-
-    public void setOverriding(boolean overriding){
-        this.overriding = overriding;
-    }
-
-    @Override
-    public String getPid() {
-        return pid;
-    }
-
-    @Override
-    public Dictionary<String, Object> getProperties() {
-        Dictionary<String, Object> properties = new Hashtable<>();
-
-        final String rootKey = this.rootMapper.getTamayaConfigRoot(pid, factoryPid);
-        LOG.info("Configuration: Evaluating Tamaya configuration for '" + rootKey + "'.");
-        org.apache.tamaya.Configuration tamayConfig = ConfigurationProvider.getConfiguration();
-        if(overriding){
-            if(parentConfig!=null) {
-                putAll(properties, parentConfig);
-            }
-            putAll(properties, tamayConfig.with(ConfigurationFunctions.section(rootKey, true)).getProperties());
-        }else{
-            putAll(properties, tamayConfig.with(ConfigurationFunctions.section(rootKey, true)).getProperties());
-            if(parentConfig!=null) {
-                putAll(properties, parentConfig);
-            }
-        }
-        return properties;
-    }
-
-    private void putAll(Dictionary<String, Object> target, Dictionary<String, Object> data) {
-        Enumeration<String> keys = data.keys();
-        while(keys.hasMoreElements()){
-            String key = keys.nextElement();
-            target.put(key, data.get(key));
-        }
-    }
-
-    private void putAll(Dictionary<String, Object> target, Map<String, String> data) {
-        for(Map.Entry<String,String> en:data.entrySet()){
-            target.put(en.getKey(), en.getValue());
-        }
-    }
-
-    @Override
-    public void update(Dictionary<String, ?> properties) throws IOException {
-        throw new UnsupportedOperationException("Mutability is not supported.");
-    }
-
-    @Override
-    public void delete() throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public String getFactoryPid() {
-        return factoryPid;
-    }
-
-    @Override
-    public void update() throws IOException {
-        // Nothing to do since, we load everything dynamically.
-    }
-
-    @Override
-    public void setBundleLocation(String location) {
-        this.bundleLocation = location;
-    }
-
-    @Override
-    public String getBundleLocation() {
-        return this.bundleLocation;
-    }
-
-    @Override
-    public long getChangeCount() {
-        return 0;
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/ConfigPrinter.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/ConfigPrinter.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/ConfigPrinter.java
new file mode 100644
index 0000000..519ea04
--- /dev/null
+++ b/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/ConfigPrinter.java
@@ -0,0 +1,115 @@
+///*
+// * 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
+// *
+// * 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.tamaya.osgi;
+//
+//import org.osgi.service.cm.ConfigurationAdmin;
+//import org.osgi.service.component.annotations.*;
+//
+//import java.util.Map;
+//import java.util.concurrent.ExecutorService;
+//import java.util.concurrent.Executors;
+//import java.util.logging.Logger;
+//
+///**
+// * Created by atsticks on 06.09.17.
+// */
+//@Component(name = ConfigPrinter.COMPONENT_NAME,
+//        configurationPolicy = ConfigurationPolicy.OPTIONAL,
+//        configurationPid = ConfigPrinter.COMPONENT_NAME,
+//        service = ConfigPrinterService.class)
+//public class ConfigPrinter implements ConfigPrinterService {
+//
+//    public static final String COMPONENT_NAME = "ConfigPrinter";
+//    public static final String COMPONENT_LABEL = "Managed ConfigPrinter Service";
+//
+//    private static final Logger LOG = Logger.getLogger(ConfigPrinter.class.getName());
+//
+//    private static ExecutorService executor = Executors.newCachedThreadPool();
+//    private Worker worker = new Worker();
+//
+//    private ConfigurationAdmin cm;
+//
+//    @Reference
+//    void setConfigurationAdmin(ConfigurationAdmin cm) {
+//        this.cm = cm;
+//    }
+//
+//    /**
+//     * Called when all of the SCR Components required dependencies have been
+//     * satisfied.
+//     */
+//    @Activate
+//    @Modified
+//    public void updateConfig(final Map<String,String> properties) {
+//        LOG.info("Activating the " + COMPONENT_LABEL);
+//        if(properties!=null) {
+//            worker.setConfig(properties.toString());
+//        }else{
+//            worker.setConfig("no config.");
+//        }
+//    }
+//
+//    /**
+//     * Called when any of the SCR Components required dependencies become
+//     * unsatisfied.
+//     */
+//    @Deactivate
+//    public void deactivate() {
+//        LOG.info("Deactivating the " + COMPONENT_LABEL);
+//    }
+//
+//    @Override
+//    public void startPrinter() {
+//        executor.execute(worker);
+//    }
+//
+//    @Override
+//    public void stopPrinter() {
+//        if (!executor.isTerminated()) {
+//            executor.shutdownNow();
+//        }
+//    }
+//
+//    /**
+//     * Thread worker that continuously prints a message.
+//     */
+//    private static class Worker implements Runnable {
+//
+//        private String config;
+//
+//        public void run() {
+//            boolean running = true;
+//            int messageCount = 0;
+//            while (running) {
+//                try {
+//                    LOG.info("Config " + (++messageCount) + ": " + config);
+//                    Thread.sleep(1000);
+//                } catch (InterruptedException e) {
+//                    running = false;
+//                    LOG.info("Thread shutting down");
+//                }
+//            }
+//        }
+//
+//        public void setConfig(String config) {
+//            this.config = config;
+//        }
+//
+//    }
+//}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/ConfigPrinterService.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/ConfigPrinterService.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/ConfigPrinterService.java
new file mode 100644
index 0000000..9eb7033
--- /dev/null
+++ b/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/ConfigPrinterService.java
@@ -0,0 +1,28 @@
+///*
+// * 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
+// *
+// * 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.tamaya.osgi;
+//
+///**
+// * Created by atsticks on 06.09.17.
+// */
+//public interface ConfigPrinterService {
+//    void startPrinter();
+//
+//    void stopPrinter();
+//}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/TamayaConfigAdminImpl.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/TamayaConfigAdminImpl.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/TamayaConfigAdminImpl.java
new file mode 100644
index 0000000..757c3be
--- /dev/null
+++ b/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/TamayaConfigAdminImpl.java
@@ -0,0 +1,167 @@
+///*
+// * 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
+// *
+// * 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.tamaya.osgi;
+//
+//import java.io.IOException;
+//import java.util.*;
+//import java.util.concurrent.ConcurrentHashMap;
+//import java.util.logging.Level;
+//import java.util.logging.Logger;
+//
+//import org.osgi.framework.BundleContext;
+//import org.osgi.framework.Filter;
+//import org.osgi.framework.InvalidSyntaxException;
+//import org.osgi.framework.ServiceReference;
+//import org.osgi.service.cm.Configuration;
+//import org.osgi.service.cm.ConfigurationAdmin;
+//
+///**
+// * Tamaya based implementation of an OSGI {@link ConfigurationAdmin}.
+// */
+//public class TamayaConfigAdminImpl implements ConfigurationAdmin {
+//    /** the logger. */
+//    private static final Logger LOG = Logger.getLogger(TamayaConfigAdminImpl.class.getName());
+//
+//    /** The OSGI context. */
+//    private final BundleContext context;
+//    /** The cached configurations. */
+//    private Map<String,Configuration> configs = new ConcurrentHashMap<>();
+//    /** The configuration section mapper. */
+//    private OSGIConfigMapper configRootMapper;
+//
+//    /**
+//     * Create a new config.
+//     * @param context the OSGI context
+//     */
+//    TamayaConfigAdminImpl(BundleContext context) {
+//        this.context = context;
+//        this.configRootMapper = loadConfigRootMapper();
+//    }
+//
+//    @Override
+//    public Configuration createFactoryConfiguration(String factoryPid) throws IOException {
+//        return createFactoryConfiguration(factoryPid, null);
+//    }
+//
+//    @Override
+//    public Configuration createFactoryConfiguration(String factoryPid, String location) throws IOException {
+//        String key = "factory:"+factoryPid;
+//        if(location!=null){
+//            key += "::"+location;
+//        }
+//        Configuration config = this.configs.get(key);
+//        if (config == null) {
+//            Dictionary<String, Object> parentConfig = getParentConfig(null, factoryPid, location);
+//            config = new TamayaOSGIConfiguration(null, factoryPid, configRootMapper, parentConfig);
+//            this.configs.put(key, config);
+//        }
+//        return config;
+//    }
+//
+//    @Override
+//    public Configuration getConfiguration(String pid, String location) throws IOException {
+//        String key = "config:"+pid;
+//        if(location!=null){
+//            key += "::"+location;
+//        }
+//        Configuration  config = this.configs.get(key);
+//        if (config == null) {
+//            Dictionary<String, Object> parentConfig = getParentConfig(pid, null, location);
+//            config = new TamayaOSGIConfiguration(pid, null, configRootMapper, parentConfig);
+//            this.configs.put(key, config);
+//        }
+//        return config;
+//    }
+//
+//    @Override
+//    public Configuration getConfiguration(String pid) throws IOException {
+//        return getConfiguration(pid, null);
+//    }
+//
+//    private Dictionary<String, Object> getParentConfig(String pid, String factoryPid, String location) {
+//        Dictionary<String, Object> parentConfig = null;
+//        if (context != null) {
+//            try {
+//                ServiceReference[] refs = context.getAllServiceReferences(ConfigurationAdmin.class.getName(), null);
+//                for (ServiceReference<ConfigurationAdmin> ref : refs) {
+//                    ConfigurationAdmin parentCand = context.getService(ref);
+//                    if (parentCand != null && !(parentCand instanceof TamayaConfigAdminImpl)) {
+//                        try {
+//                            parentConfig = parentCand.getConfiguration(pid, factoryPid).getProperties();
+//                        } catch (IOException e) {
+//                            LOG.log(Level.WARNING, "Error reading parent OSGI config.", e);
+//                        }
+//                    }
+//                }
+//            } catch (Exception e) {
+//                LOG.log(Level.SEVERE, "Cannot not evaluate parent/base OSGI config.", e);
+//            }
+//        }
+//        return parentConfig;
+//    }
+//
+//    @Override
+//    public Configuration[] listConfigurations(String filter) throws IOException, InvalidSyntaxException {
+//        List<Configuration> result = new ArrayList<>();
+//        if (filter == null || context == null) {
+//            return this.configs.values().toArray(new Configuration[this.configs.size()]);
+//        } else {
+//            Filter flt = context.createFilter(filter);
+//            for(Configuration config:this.configs.values()) {
+//                if (flt.match(config.getProperties())) {
+//                    result.add(config);
+//                }
+//            }
+//            return result.toArray(new Configuration[result.size()]);
+//        }
+//    }
+//
+//    /**
+//     * Loads the configuration toor mapper using the OSGIConfigRootMapper OSGI service resolving mechanism. If no
+//     * such service is available it loads the default mapper.
+//     * @return the mapper to be used, bever null.
+//     */
+//    private OSGIConfigMapper loadConfigRootMapper() {
+//        OSGIConfigMapper mapper = null;
+//        if(context!=null) {
+//            ServiceReference<OSGIConfigMapper> ref = context.getServiceReference(OSGIConfigMapper.class);
+//            if (ref != null) {
+//                mapper = context.getService(ref);
+//            }
+//        }
+//        if(mapper==null){
+//            mapper = new OSGIConfigMapper() {
+//                @Override
+//                public String getTamayaConfigRoot(String pid, String factoryPid) {
+//                    if(pid!=null) {
+//                        return "[" + pid +']';
+//                    } else{
+//                        return "[" + factoryPid +']';
+//                    }
+//                }
+//                @Override
+//                public String toString(){
+//                    return "Default OSGIConfigRootMapper(pid -> [bundle:pid], factoryPid -> [bundle:factoryPid]";
+//                }
+//            };
+//        }
+//        return mapper;
+//    }
+//
+//}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/TamayaOSGIConfiguration.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/TamayaOSGIConfiguration.java b/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/TamayaOSGIConfiguration.java
new file mode 100644
index 0000000..dfadfb8
--- /dev/null
+++ b/osgi/common/src/main/java/org/apache/tamaya/osgi/attic/TamayaOSGIConfiguration.java
@@ -0,0 +1,139 @@
+///*
+// * 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
+// *
+// * 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.tamaya.osgi;
+//
+//import java.io.IOException;
+//import java.util.*;
+//import java.util.logging.Logger;
+//
+//import org.apache.tamaya.ConfigurationProvider;
+//import org.apache.tamaya.functions.ConfigurationFunctions;
+//import org.osgi.service.cm.Configuration;
+//
+///**
+// * Tamaya based implementation of an OSGI {@link Configuration}.
+// */
+//public class TamayaOSGIConfiguration implements Configuration {
+//    private static final Logger LOG = Logger.getLogger(TamayaOSGIConfiguration.class.getName());
+//    private final Dictionary<String, Object> parentConfig;
+//    private final String pid;
+//    private final String factoryPid;
+//    private OSGIConfigMapper rootMapper;
+//    private boolean overriding = true;
+//    private String bundleLocation;
+//
+//    /**
+//     * Constructor.
+//     * @param confPid the OSGI pid
+//     * @param factoryPid the factory pid
+//     * @param configRootMapper the mapper that maps the pids to a tamaya root section.
+//     * @param parentConfig the OSGI config for the given context, may be null..
+//     */
+//    TamayaOSGIConfiguration(String confPid, String factoryPid, OSGIConfigMapper configRootMapper,
+//                            Dictionary<String, Object> parentConfig) {
+//        this.pid = confPid;
+//        this.factoryPid = factoryPid;
+//        this.parentConfig = parentConfig;
+//        this.rootMapper = Objects.requireNonNull(configRootMapper);
+//    }
+//
+//    public boolean isOverriding() {
+//        return overriding;
+//    }
+//
+//    public void setOverriding(boolean overriding){
+//        this.overriding = overriding;
+//    }
+//
+//    @Override
+//    public String getPid() {
+//        return pid;
+//    }
+//
+//    @Override
+//    public Dictionary<String, Object> getProperties() {
+//        Dictionary<String, Object> properties = new Hashtable<>();
+//
+//        final String rootKey = this.rootMapper.getTamayaConfigRoot(pid, factoryPid);
+//        LOG.info("Configuration: Evaluating Tamaya configuration for '" + rootKey + "'.");
+//        org.apache.tamaya.Configuration tamayConfig = ConfigurationProvider.getConfiguration();
+//        if(overriding){
+//            if(parentConfig!=null) {
+//                putAll(properties, parentConfig);
+//            }
+//            putAll(properties, tamayConfig.with(ConfigurationFunctions.section(rootKey, true)).getProperties());
+//        }else{
+//            putAll(properties, tamayConfig.with(ConfigurationFunctions.section(rootKey, true)).getProperties());
+//            if(parentConfig!=null) {
+//                putAll(properties, parentConfig);
+//            }
+//        }
+//        return properties;
+//    }
+//
+//    private void putAll(Dictionary<String, Object> target, Dictionary<String, Object> data) {
+//        Enumeration<String> keys = data.keys();
+//        while(keys.hasMoreElements()){
+//            String key = keys.nextElement();
+//            target.put(key, data.get(key));
+//        }
+//    }
+//
+//    private void putAll(Dictionary<String, Object> target, Map<String, String> data) {
+//        for(Map.Entry<String,String> en:data.entrySet()){
+//            target.put(en.getKey(), en.getValue());
+//        }
+//    }
+//
+//    @Override
+//    public void update(Dictionary<String, ?> properties) throws IOException {
+//        throw new UnsupportedOperationException("Mutability is not supported.");
+//    }
+//
+//    @Override
+//    public void delete() throws IOException {
+//        throw new UnsupportedOperationException();
+//    }
+//
+//    @Override
+//    public String getFactoryPid() {
+//        return factoryPid;
+//    }
+//
+//    @Override
+//    public void update() throws IOException {
+//        // Nothing to do since, we load everything dynamically.
+//    }
+//
+//    @Override
+//    public void setBundleLocation(String location) {
+//        this.bundleLocation = location;
+//    }
+//
+//    @Override
+//    public String getBundleLocation() {
+//        return this.bundleLocation;
+//    }
+//
+//    @Override
+//    public long getChangeCount() {
+//        return 0;
+//    }
+//
+//}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/common/src/test/java/org/apache/tamaya/osgi/TamayaConfigAdminImplTest.java
----------------------------------------------------------------------
diff --git a/osgi/common/src/test/java/org/apache/tamaya/osgi/TamayaConfigAdminImplTest.java b/osgi/common/src/test/java/org/apache/tamaya/osgi/TamayaConfigAdminImplTest.java
deleted file mode 100644
index 93f98d0..0000000
--- a/osgi/common/src/test/java/org/apache/tamaya/osgi/TamayaConfigAdminImplTest.java
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * 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
- *
- * 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.tamaya.osgi;
-
-import org.junit.Test;
-import org.osgi.service.cm.Configuration;
-
-import static org.junit.Assert.*;
-
-/**
- * Created by atsticks on 10.12.16.
- */
-public class TamayaConfigAdminImplTest {
-
-    private TamayaConfigAdminImpl configAdmin = new TamayaConfigAdminImpl(null);
-
-    @Test
-    public void createFactoryConfiguration() throws Exception {
-        Configuration config = configAdmin.createFactoryConfiguration("tamaya");
-        assertNotNull(config);
-        assertFalse(config.getProperties().isEmpty());
-        assertEquals(config.getProperties().size(), 4);
-        assertEquals(config.getProperties().get("my.testProperty1"), "success1");
-    }
-
-    @Test
-    public void createFactoryConfigurationWithLocation() throws Exception {
-        Configuration config = configAdmin.createFactoryConfiguration("tamaya", "location");
-        assertNotNull(config);
-        assertFalse(config.getProperties().isEmpty());
-        assertEquals(config.getProperties().size(), 4);
-        assertEquals(config.getProperties().get("my.testProperty2"), "success2");
-    }
-
-    @Test
-    public void getConfiguration() throws Exception {
-        Configuration config = configAdmin.getConfiguration("tamaya");
-        assertNotNull(config);
-        assertFalse(config.getProperties().isEmpty());
-        assertEquals(config.getProperties().size(), 4);
-        assertEquals(config.getProperties().get("my.testProperty3"), "success3");
-    }
-
-    @Test
-    public void getConfigurationWithLocation() throws Exception {
-        Configuration config = configAdmin.getConfiguration("tamaya", "location");
-        assertNotNull(config);
-        assertFalse(config.getProperties().isEmpty());
-        assertEquals(config.getProperties().size(), 4);
-        assertEquals(config.getProperties().get("my.testProperty4"), "success4");
-    }
-
-    @Test
-    public void listConfigurations() throws Exception {
-        Configuration[] configs = configAdmin.listConfigurations(".*");
-        assertNotNull(configs);
-    }
-
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-features/pom.xml
----------------------------------------------------------------------
diff --git a/osgi/karaf-features/pom.xml b/osgi/karaf-features/pom.xml
index b7cc919..eb4c7e1 100644
--- a/osgi/karaf-features/pom.xml
+++ b/osgi/karaf-features/pom.xml
@@ -27,63 +27,19 @@ limitations under the License.
     </parent>
 
     <artifactId>tamaya-karaf-features</artifactId>
-    <packaging>jar</packaging>
-    <description>Tamaya Karaf Integration Tests Suite.</description>
+    <packaging>feature</packaging>
     <name>Apache Tamaya :: Karaf :: Features</name>
-
-    <properties>
-        <karaf.version>4.0.7</karaf.version>
-        <pax.exam.version>4.5.0</pax.exam.version>
-    </properties>
+    <description>Tamaya Karaf Feature Descriptor.</description>
 
     <build>
         <plugins>
-
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-resources-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <id>features</id>
-                        <phase>generate-resources</phase>
-                        <goals>
-                            <goal>copy-resources</goal>
-                        </goals>
-                        <configuration>
-                            <resources>
-                                <resource>
-                                    <directory>src/main/features</directory>
-                                    <filtering>true</filtering>
-                                </resource>
-                            </resources>
-                            <outputDirectory>target/features</outputDirectory>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-
             <plugin>
-                <groupId>org.codehaus.mojo</groupId>
-                <artifactId>build-helper-maven-plugin</artifactId>
-                <version>1.12</version>
-                <executions>
-                    <execution>
-                        <id>attach-artifacts</id>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>attach-artifact</goal>
-                        </goals>
-                        <configuration>
-                            <artifacts>
-                                <artifact>
-                                    <file>target/features/features.xml</file>
-                                    <type>xml</type>
-                                    <classifier>features</classifier>
-                                </artifact>
-                            </artifacts>
-                        </configuration>
-                    </execution>
-                </executions>
+                <groupId>org.apache.karaf.tooling</groupId>
+                <artifactId>karaf-maven-plugin</artifactId>
+                <configuration>
+                    <startLevel>80</startLevel>
+                    <aggregateFeatures>true</aggregateFeatures>
+                </configuration>
             </plugin>
         </plugins>
     </build>

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/bnd.bnd
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/bnd.bnd b/osgi/karaf-shell/bnd.bnd
new file mode 100644
index 0000000..a7c8013
--- /dev/null
+++ b/osgi/karaf-shell/bnd.bnd
@@ -0,0 +1,37 @@
+-buildpath: \
+	osgi.annotation; version=6.0.0,\
+	osgi.core; version=6.0,\
+	osgi.cmpn; version=6.0
+
+-testpath: \
+	${junit}
+
+javac.source: 1.8
+javac.target: 1.8
+
+Bundle-Version: ${version}.${tstamp}
+Bundle-Name: Apache Tamaya - Karaf Shell Commands
+Bundle-SymbolicName: org.apache.tamaya.osgi.karaf.shell
+Bundle-Description: Apacha Tamaya Configuration - Karaf Shell Extensions
+Bundle-Category: Implementation
+Bundle-Copyright: (C) Apache Foundation
+Bundle-License: Apache Licence version 2
+Bundle-Vendor: Apache Software Foundation
+Bundle-ContactAddress: dev-tamaya@incubator.apache.org
+Bundle-DocURL: http://tamaya.apache.org
+Export-Package: \
+	org.apache.tamaya.karaf.shell
+Import-Package: \
+    org.osgi.service.cm,\
+    org.osgi.framework,\
+    org.apache.tamaya,\
+    org.apache.tamaya.spi,\
+    org.apache.tamaya.functions,\
+    org.apache.tamaya.spisupport,\
+    org.apache.tamaya.osgi,\
+    org.apache.felix.service.command,\
+    org.apache.karaf.shell.api.console,\
+    org.apache.karaf.shell.api.action,\
+    org.apache.karaf.shell.api.action.lifecycle,\
+    org.apache.karaf.shell.support.completers
+Karaf-Commands: org.apache.tamaya.karaf.shell
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/pom.xml
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/pom.xml b/osgi/karaf-shell/pom.xml
new file mode 100644
index 0000000..cb857dc
--- /dev/null
+++ b/osgi/karaf-shell/pom.xml
@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-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">
+
+    <!--
+
+        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
+
+        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.
+    -->
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.apache.tamaya.ext</groupId>
+        <artifactId>tamaya-osgi-all</artifactId>
+        <version>0.4-incubating-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>tamaya-karaf-shell_alpha</artifactId>
+    <packaging>jar</packaging>
+    <name>Apache Tamaya :: Karaf :: Shell</name>
+    <description>Tamaya Karaf Shell Commands</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.tamaya.ext</groupId>
+            <artifactId>tamaya-osgi_alpha</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.compendium</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.karaf.shell</groupId>
+            <artifactId>org.apache.karaf.shell.core</artifactId>
+            <version>${dependency.karaf.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.karaf.shell</groupId>
+            <artifactId>org.apache.karaf.shell.console</artifactId>
+            <version>${dependency.karaf.version}</version>
+            <scope>provided</scope>
+        </dependency>
+
+
+        <!-- Testing -->
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>java-hamcrest</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/ConfigCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/ConfigCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/ConfigCommand.java
new file mode 100644
index 0000000..84a862c
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/ConfigCommand.java
@@ -0,0 +1,50 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.tamaya.Configuration;
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.functions.ConfigurationFunctions;
+
+import java.io.IOException;
+
+@Command(scope = "tamaya", name = "config", description="Show the current Tamaya configuration.")
+@Service
+public class ConfigCommand implements Action{
+
+    @Argument(index = 0, name = "section", description = "A regular expression selecting the section to be filtered.",
+            required = false, multiValued = false)
+    String section = null;
+
+    public Object execute() throws IOException {
+        Configuration config = ConfigurationProvider.getConfiguration();
+        if(section!=null){
+            return config
+                    .with(ConfigurationFunctions.section(section))
+                    .query(ConfigurationFunctions.textInfo());
+        }
+        System.out.println(config.query(ConfigurationFunctions.textInfo()));
+        return null;
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/DefaultDisableCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/DefaultDisableCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/DefaultDisableCommand.java
new file mode 100644
index 0000000..0c14da5
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/DefaultDisableCommand.java
@@ -0,0 +1,68 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Completion;
+import org.apache.karaf.shell.api.action.lifecycle.Reference;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.karaf.shell.api.console.CommandLine;
+import org.apache.karaf.shell.api.console.Completer;
+import org.apache.karaf.shell.api.console.Session;
+import org.apache.karaf.shell.support.completers.StringsCompleter;
+import org.apache.tamaya.osgi.TamayaConfigPlugin;
+
+import java.io.IOException;
+import java.util.List;
+
+@Command(scope = "tamaya", name = "disable-by-default", description="Disables Tamaya by default for all bundles/services (default=false)." +
+        " Disabling it allows to explicitly enable bundles using 'Tamaya-Enable^manifest entries.")
+@Service
+public class DefaultDisableCommand implements Action{
+
+    @Reference
+    private TamayaConfigPlugin configPlugin;
+
+    @Argument(index = 0, name = "disabled", description = "The boolean value to disable Tamaya by default.",
+            required = true, multiValued = false)
+    @Completion(OperationModeCompleter.class)
+    boolean disabled;
+
+    @Override
+    public Object execute() throws IOException {
+        this.configPlugin.setDefaultDisabled(disabled);
+        return null;
+    }
+
+    @Service
+    public static final class OperationModeCompleter implements Completer {
+
+        @Override
+        public int complete(Session session, CommandLine commandLine, List<String> candidates) {
+            StringsCompleter delegate = new StringsCompleter();
+            for(TamayaConfigPlugin.OperationMode mode:TamayaConfigPlugin.OperationMode.values()) {
+                delegate.getStrings().add(mode.toString());
+            }
+            return delegate.complete(session, commandLine, candidates);
+        }
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/EvaluateCMConfigCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/EvaluateCMConfigCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/EvaluateCMConfigCommand.java
new file mode 100644
index 0000000..d22022a
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/EvaluateCMConfigCommand.java
@@ -0,0 +1,63 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Reference;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.osgi.service.cm.Configuration;
+import org.osgi.service.cm.ConfigurationAdmin;
+
+import java.io.IOException;
+
+@Command(scope = "tamaya", name = "cm-config", description="Show the current Tamaya configuration.")
+@Service
+public class EvaluateCMConfigCommand implements Action{
+
+    @Argument(index = 0, name = "pid", description = "The component's PID.",
+            required = true, multiValued = false)
+    String pid = null;
+
+    @Argument(index = 1, name = "location", description = "The component's configuration location.",
+            required = false, multiValued = false)
+    String location = null;
+
+    @Reference
+    private ConfigurationAdmin cm;
+
+    public Object execute() throws IOException {
+        Configuration config = cm.getConfiguration(pid, location);
+        System.out.println("OSGI Configuration for PID: " + pid);
+        System.out.println("----------------------------------------------------------");
+        if(config!=null){
+            System.out.println("PID: " + config.getPid());
+            System.out.println("Factory-PID: " + config.getFactoryPid());
+            System.out.println("Location: " + config.getBundleLocation());
+            System.out.println("Change Count: " + config.getChangeCount());
+            System.out.println("Properties:");
+            System.out.println(config.getProperties());
+        }else{
+            System.out.println("No OSGI Config found for PID: " + config.getPid());
+        }
+        return null;
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/GetPolicyCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/GetPolicyCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/GetPolicyCommand.java
new file mode 100644
index 0000000..3f1f1f0
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/GetPolicyCommand.java
@@ -0,0 +1,42 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Reference;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.tamaya.osgi.TamayaConfigPlugin;
+
+import java.io.IOException;
+
+@Command(scope = "tamaya", name = "get-policy", description="Get the current Tamaya overriding policy.")
+@Service
+public class GetPolicyCommand implements Action{
+
+    @Reference
+    private TamayaConfigPlugin configPlugin;
+
+    @Override
+    public Object execute() throws IOException {
+        System.out.println(this.configPlugin.getOperationMode());
+        return null;
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/InfoCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/InfoCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/InfoCommand.java
new file mode 100644
index 0000000..f9dafed
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/InfoCommand.java
@@ -0,0 +1,46 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import java.io.IOException;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Reference;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.tamaya.Configuration;
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.osgi.TamayaConfigPlugin;
+
+@Command(scope = "tamaya", name = "info", description="Show he current Tamaya status.")
+@Service
+public class InfoCommand  implements Action {
+
+    @Reference
+    private TamayaConfigPlugin configPlugin;
+
+    public Object execute() throws IOException {
+        Configuration config = ConfigurationProvider.getConfiguration();
+        System.out.println(config.toString() + "\n\n"
+        + "OSGI OperationPolicy: " + configPlugin.getOperationMode() + '\n'
+        + "Default Disabled    : " + configPlugin.isDefaultDisabled());
+        return null;
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/92053860/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertyCommand.java
----------------------------------------------------------------------
diff --git a/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertyCommand.java b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertyCommand.java
new file mode 100644
index 0000000..04c792e
--- /dev/null
+++ b/osgi/karaf-shell/src/main/java/org/apache/tamaya/karaf/shell/PropertyCommand.java
@@ -0,0 +1,75 @@
+/*
+ * 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
+ *
+ * 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.tamaya.karaf.shell;
+
+import org.apache.karaf.shell.api.action.Action;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Option;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.tamaya.Configuration;
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.functions.ConfigurationFunctions;
+import org.apache.tamaya.spi.PropertySource;
+import org.apache.tamaya.spi.PropertyValue;
+
+import java.io.IOException;
+
+@Command(scope = "tamaya", name = "property", description="Show the current Tamaya configuration.")
+@Service
+public class PropertyCommand implements Action{
+
+    @Argument(index = 0, name = "key", description = "The target property source id.",
+            required = false, multiValued = false)
+    String key = null;
+
+    @Option(name = "propertysource", aliases = "ps", description = "The target property source id.",
+            required = false, multiValued = false)
+    String propertysource = null;
+
+    public Object execute() throws IOException {
+        Configuration config = ConfigurationProvider.getConfiguration();
+        if(propertysource!=null){
+            PropertySource ps = config.getContext().getPropertySource(propertysource);
+            if(ps==null){
+                System.out.println("No such propertysource: " + propertysource);
+            }else {
+                PropertyValue val = ps.get(key);
+                if(val==null){
+                    System.out.println("PropertySource: " + propertysource + "\nUndefined key: " + key);
+                }else {
+                    System.out.println("PropertySource: " + propertysource + "\n" +
+                            ps.get(key));
+                }
+            }
+        }else{
+            for(PropertySource ps:config.getContext().getPropertySources()){
+                PropertyValue val = ps.get(key);
+                if(val==null){
+                    System.out.println("PropertySource: " + propertysource + "\nUndefined key: " + key);
+                }else {
+                    System.out.println("PropertySource: " + propertysource + "\n" +
+                            ps.get(key));
+                }
+            }
+        }
+        return null;
+    }
+
+}
\ No newline at end of file