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Posted to commits@stratos.apache.org by ra...@apache.org on 2015/08/30 20:17:35 UTC
[42/50] [abbrv] stratos git commit: Fixing pom modules structure.
Make it consistent
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/artifacts/executionplans/SecondDerivativeOfHealthRequest.xml
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diff --git a/extensions/cep/modules/artifacts/executionplans/SecondDerivativeOfHealthRequest.xml b/extensions/cep/modules/artifacts/executionplans/SecondDerivativeOfHealthRequest.xml
new file mode 100644
index 0000000..0fa4a0a
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+++ b/extensions/cep/modules/artifacts/executionplans/SecondDerivativeOfHealthRequest.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ 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.
+
+-->
+
+<executionPlan name="SecondDerivativeOfHealthRequest"
+ statistics="disable" trace="disable" xmlns="http://wso2.org/carbon/eventprocessor">
+ <description>This will find the second derivative of health stats over a minute.</description>
+ <siddhiConfiguration>
+ <property name="siddhi.enable.distributed.processing">false</property>
+ <property name="siddhi.persistence.snapshot.time.interval.minutes">0</property>
+ </siddhiConfiguration>
+ <importedStreams>
+ <stream as="health_second_der_request" name="cartridge_agent_health_stats" version="1.0.0"/>
+ </importedStreams>
+ <queryExpressions><![CDATA[
+ from health_second_der_request
+ select member_id, cluster_id, cluster_instance_id, network_partition_id, health_description, value,
+ stratos:concat(cluster_id, '-' ,cluster_instance_id) as health_second_der_cluster_network
+ insert into health_second_der_concat;
+ define partition health_second_der_cluster_partition by health_second_der_concat.health_second_der_cluster_network;
+ from health_second_der_concat [health_description == 'memory_consumption']
+ #window.stratos:secondDerivative(1 min, value) select cluster_id, cluster_instance_id, network_partition_id, value as second_derivative_memory_consumption
+ insert into second_derivative_memory_consumption_stats
+ partition by health_second_der_cluster_partition;
+ from health_second_der_concat [health_description == 'load_average']
+ #window.stratos:secondDerivative(1 min, value) select cluster_id, cluster_instance_id, network_partition_id, value as second_derivative_load_average
+ insert into second_derivative_load_average_stats
+ partition by health_second_der_cluster_partition;
+ define partition health_second_der_member_partition by health_second_der_request.member_id;
+ from health_second_der_request [health_description == 'memory_consumption']
+ #window.stratos:secondDerivative(1 min, value)
+ select member_id, cluster_id, cluster_instance_id, network_partition_id, value as member_second_derivative_memory_consumption
+ insert into member_second_derivative_memory_consumption_stats
+ partition by health_second_der_member_partition;
+ from health_second_der_request [health_description == 'load_average']
+ #window.stratos:secondDerivative(1 min, value)
+ select member_id, cluster_id, cluster_instance_id, network_partition_id, value as member_second_derivative_load_average
+ insert into member_second_derivative_load_average_stats
+ partition by health_second_der_member_partition;]]></queryExpressions>
+ <exportedStreams>
+ <stream name="second_derivative_memory_consumption_stats"
+ valueOf="second_derivative_memory_consumption_stats" version="1.0.0"/>
+ <stream name="second_derivative_load_average_stats"
+ valueOf="second_derivative_load_average_stats" version="1.0.0"/>
+ <stream name="member_second_derivative_memory_consumption_stats"
+ valueOf="member_second_derivative_memory_consumption_stats" version="1.0.0"/>
+ <stream name="member_second_derivative_load_average_stats"
+ valueOf="member_second_derivative_load_average_stats" version="1.0.0"/>
+ </exportedStreams>
+</executionPlan>
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/artifacts/executionplans/SecondDerivativeOfRequestsInFlightFinder.xml
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diff --git a/extensions/cep/modules/artifacts/executionplans/SecondDerivativeOfRequestsInFlightFinder.xml b/extensions/cep/modules/artifacts/executionplans/SecondDerivativeOfRequestsInFlightFinder.xml
new file mode 100644
index 0000000..c8e4ed5
--- /dev/null
+++ b/extensions/cep/modules/artifacts/executionplans/SecondDerivativeOfRequestsInFlightFinder.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ 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.
+
+-->
+
+<executionPlan name="SecondDerivativeOfRequestsInFlightFinder"
+ statistics="disable" trace="enable" xmlns="http://wso2.org/carbon/eventprocessor">
+ <description>This will find the second derivative of the number of requests in flight over a minute.</description>
+ <siddhiConfiguration>
+ <property name="siddhi.enable.distributed.processing">false</property>
+ <property name="siddhi.persistence.snapshot.time.interval.minutes">0</property>
+ </siddhiConfiguration>
+ <importedStreams>
+ <stream as="second_der_rif" name="in_flight_requests" version="1.0.0"/>
+ </importedStreams>
+ <queryExpressions><![CDATA[
+ from second_der_rif
+ select cluster_id, cluster_instance_id, network_partition_id, in_flight_request_count,
+ stratos:concat(cluster_id, '-' ,network_partition_id) as rif_second_der_cluster_network
+ insert into rif_second_der_concat;
+ define partition rif_second_der_cluster_partition by rif_second_der_concat.rif_second_der_cluster_network;
+ from rif_second_der_concat#window.stratos:secondDerivative(1 min, in_flight_request_count)
+ select cluster_id, cluster_instance_id, network_partition_id,in_flight_request_count as count
+ insert into second_derivative_in_flight_requests
+ partition by rif_second_der_cluster_partition;
+ ]]></queryExpressions>
+ <exportedStreams>
+ <stream name="second_derivative_in_flight_requests"
+ valueOf="second_derivative_in_flight_requests" version="1.0.0"/>
+ </exportedStreams>
+</executionPlan>
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/artifacts/inputeventadaptors/DefaultWSO2EventInputAdaptor.xml
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diff --git a/extensions/cep/modules/artifacts/inputeventadaptors/DefaultWSO2EventInputAdaptor.xml b/extensions/cep/modules/artifacts/inputeventadaptors/DefaultWSO2EventInputAdaptor.xml
new file mode 100644
index 0000000..77af463
--- /dev/null
+++ b/extensions/cep/modules/artifacts/inputeventadaptors/DefaultWSO2EventInputAdaptor.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ 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.
+
+-->
+
+<inputEventAdaptor name="DefaultWSO2EventInputAdaptor"
+ statistics="disable" trace="enable" type="wso2event" xmlns="http://wso2.org/carbon/eventadaptormanager"/>
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/artifacts/outputeventadaptors/DefaultWSO2EventOutputAdaptor.xml
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diff --git a/extensions/cep/modules/artifacts/outputeventadaptors/DefaultWSO2EventOutputAdaptor.xml b/extensions/cep/modules/artifacts/outputeventadaptors/DefaultWSO2EventOutputAdaptor.xml
new file mode 100644
index 0000000..4438d2c
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+++ b/extensions/cep/modules/artifacts/outputeventadaptors/DefaultWSO2EventOutputAdaptor.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ 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.
+
+-->
+
+<outputEventAdaptor name="DefaultWSO2EventOutputAdaptor"
+ statistics="disable" trace="disable" type="wso2event" xmlns="http://wso2.org/carbon/eventadaptormanager">
+ <property name="username">admin</property>
+ <property name="receiverURL">tcp://localhost:7661</property>
+ <property name="password">admin</property>
+ <property name="authenticatorURL">ssl://localhost:7761</property>
+</outputEventAdaptor>
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/artifacts/outputeventadaptors/JMSOutputAdaptor.xml
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diff --git a/extensions/cep/modules/artifacts/outputeventadaptors/JMSOutputAdaptor.xml b/extensions/cep/modules/artifacts/outputeventadaptors/JMSOutputAdaptor.xml
new file mode 100644
index 0000000..59c3653
--- /dev/null
+++ b/extensions/cep/modules/artifacts/outputeventadaptors/JMSOutputAdaptor.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ 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.
+
+-->
+
+<outputEventAdaptor name="JMSOutputAdaptor" statistics="disable"
+ trace="enable" type="jms" xmlns="http://wso2.org/carbon/eventadaptormanager">
+ <!--property name="java.naming.provider.url">CEP_HOME/repository/conf/jndi.properties</property-->
+ <property name="java.naming.provider.url">tcp://localhost:61616</property>
+ <property name="java.naming.factory.initial">org.apache.activemq.jndi.ActiveMQInitialContextFactory</property>
+ <property name="transport.jms.ConnectionFactoryJNDIName">TopicConnectionFactory</property>
+ <property name="transport.jms.DestinationType">topic</property>
+</outputEventAdaptor>
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/artifacts/streamdefinitions/stream-manager-config.xml
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diff --git a/extensions/cep/modules/artifacts/streamdefinitions/stream-manager-config.xml b/extensions/cep/modules/artifacts/streamdefinitions/stream-manager-config.xml
new file mode 100644
index 0000000..4c4c7e0
--- /dev/null
+++ b/extensions/cep/modules/artifacts/streamdefinitions/stream-manager-config.xml
@@ -0,0 +1,309 @@
+<?xml version='1.0'?>
+<!--
+
+ 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.
+
+-->
+
+<streamManagerConfiguration xmlns="http://wso2.org/carbon/streammanager">
+ <!-- in-flight requests stream definitions start -->
+ <streamDefinition name="in_flight_requests" version="1.0.0">
+ <description>in-flight request count</description>
+ <nickName>in-flight requests</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String"/>
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="in_flight_request_count" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="gradient_in_flight_requests" version="1.0.0">
+ <description>gradient of in flight request count</description>
+ <nickName>gradient in flight requests</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String"/>
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="count" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="average_in_flight_requests" version="1.0.0">
+ <description>average of in-flight request count</description>
+ <nickName>average in-flight requests</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String"/>
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="count" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="second_derivative_in_flight_requests" version="1.0.0">
+ <description>second derivative of in-flight request count</description>
+ <nickName>second derivative in-flight requests</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String"/>
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="count" type="double"/>
+ </payloadData>
+ </streamDefinition>
+ <!-- in-flight requests stream definitions end -->
+
+ <!-- cartridge agent health stats stream definitions start -->
+ <streamDefinition name="cartridge_agent_health_stats" version="1.0.0">
+ <description>agent health stats</description>
+ <nickName>agent health stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="member_id" type="String" />
+ <property name="partition_id" type="String" />
+ <property name="health_description" type="String"/>
+ <property name="value" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="average_load_average_stats" version="1.0.0">
+ <description>average load average stats</description>
+ <nickName>average load average stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="average_load_average" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="average_memory_consumption_stats" version="1.0.0">
+ <description>average memory consumption stats</description>
+ <nickName>average memory consumption stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String"/>
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="average_memory_consumption" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="gradient_load_average_stats" version="1.0.0">
+ <description>gradient load average stats</description>
+ <nickName>gradient load average stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="gradient_load_average" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="gradient_memory_consumption_stats" version="1.0.0">
+ <description>gradient memoryconsumption stats</description>
+ <nickName>gradient memoryconsumption stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="gradient_memory_consumption" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="second_derivative_memory_consumption_stats" version="1.0.0">
+ <description>second derivative memory consumption stats</description>
+ <nickName>second derivative memory consumption stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="second_derivative_memory_consumption" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="second_derivative_load_average_stats" version="1.0.0">
+ <description>second derivative load average stats</description>
+ <nickName>second derivative load average stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="second_derivative_load_average" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="fault_message" version="1.0.0">
+ <description>fault message</description>
+ <nickName>fault message</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="cluster_id" type="String"/>
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="member_id" type="String"/>
+ <property name="partition_id" type="String"/>
+ </payloadData>
+ </streamDefinition>
+ <!-- cartridge agent health stats stream definitions end -->
+
+ <!-- This is for member_id wise grouping-->
+ <streamDefinition name="member_average_load_average_stats" version="1.0.0">
+ <description>average load average stats</description>
+ <nickName>average load average stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="member_id" type="String" />
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="member_average_load_average" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="member_average_memory_consumption_stats" version="1.0.0">
+ <description>average memory consumption stats</description>
+ <nickName>average memory consumption stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="member_id" type="String"/>
+ <property name="cluster_id" type="String"/>
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="member_average_memory_consumption" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="member_gradient_load_average_stats" version="1.0.0">
+ <description>gradient load average stats</description>
+ <nickName>gradient load average stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="member_id" type="String" />
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="member_gradient_load_average" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="member_gradient_memory_consumption_stats" version="1.0.0">
+ <description>gradient memoryconsumption stats</description>
+ <nickName>gradient memoryconsumption stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="member_id" type="String" />
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="member_gradient_memory_consumption" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="member_second_derivative_memory_consumption_stats" version="1.0.0">
+ <description>second derivative memory consumption stats</description>
+ <nickName>second derivative memory consumption stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="member_id" type="String" />
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="member_second_derivative_memory_consumption" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+ <streamDefinition name="member_second_derivative_load_average_stats" version="1.0.0">
+ <description>second derivative load average stats</description>
+ <nickName>second derivative load average stats</nickName>
+ <metaData>
+ </metaData>
+ <correlationData>
+ </correlationData>
+ <payloadData>
+ <property name="member_id" type="String" />
+ <property name="cluster_id" type="String" />
+ <property name="cluster_instance_id" type="String"/>
+ <property name="network_partition_id" type="String"/>
+ <property name="member_second_derivative_load_average" type="double"/>
+ </payloadData>
+ </streamDefinition>
+
+</streamManagerConfiguration>
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/distribution/README.md
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diff --git a/extensions/cep/modules/distribution/README.md b/extensions/cep/modules/distribution/README.md
new file mode 100755
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+++ b/extensions/cep/modules/distribution/README.md
@@ -0,0 +1,12 @@
+# Apache Stratos CEP Extensions
+
+Apache Stratos Complex Event Processor (CEP) extensions include Window Processors for processing
+health statistic events. These extensions are available in Stratos binary distribution, in a
+distributed deployment where CEP is run externally, these extensions need to be deployed manually.
+
+Please refer below link for more information on WSO2 CEP.
+http://wso2.com/products/complex-event-processor/
+
+
+Thank you for using Apache Stratos!
+The Stratos Team
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/distribution/pom.xml
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diff --git a/extensions/cep/modules/distribution/pom.xml b/extensions/cep/modules/distribution/pom.xml
new file mode 100644
index 0000000..1fe52f0
--- /dev/null
+++ b/extensions/cep/modules/distribution/pom.xml
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!--
+ ~ 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.
+ -->
+<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/maven-v4_0_0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.stratos</groupId>
+ <artifactId>cep-extensions</artifactId>
+ <version>4.1.2</version>
+ <relativePath>../../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>apache-stratos-cep-artifacts</artifactId>
+ <packaging>pom</packaging>
+ <name>Apache Stratos CEP artifacts</name>
+ <description>Apache Stratos CEP artifacts</description>
+
+ <profiles>
+ <profile>
+ <id>default</id>
+ <activation>
+ <activeByDefault>true</activeByDefault>
+ </activation>
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-assembly-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>4-dist</id>
+ <phase>package</phase>
+ <goals>
+ <goal>attached</goal>
+ </goals>
+ <configuration>
+ <descriptors>
+ <descriptor>${basedir}/src/assembly/bin.xml</descriptor>
+ </descriptors>
+ <appendAssemblyId>false</appendAssemblyId>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+ </profile>
+ </profiles>
+</project>
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/distribution/src/assembly/bin.xml
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/distribution/src/assembly/bin.xml b/extensions/cep/modules/distribution/src/assembly/bin.xml
new file mode 100755
index 0000000..509a6e2
--- /dev/null
+++ b/extensions/cep/modules/distribution/src/assembly/bin.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~ Licensed to the Apache Software Foundation (ASF) under one
+ ~ or more contributor license agreements. See the NOTICE file
+ ~ distributed with this work for additional information
+ ~ regarding copyright ownership. The ASF licenses this file
+ ~ to you under the Apache License, Version 2.0 (the
+ ~ "License"); you may not use this file except in compliance
+ ~ with the License. You may obtain a copy of the License at
+ ~
+ ~ http://www.apache.org/licenses/LICENSE-2.0
+ ~
+ ~ Unless required by applicable law or agreed to in writing,
+ ~ software distributed under the License is distributed on an
+ ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ ~ KIND, either express or implied. See the License for the
+ ~ specific language governing permissions and limitations
+ ~ under the License.
+ -->
+<assembly>
+ <id>bin</id>
+ <formats>
+ <format>zip</format>
+ </formats>
+ <includeBaseDirectory>false</includeBaseDirectory>
+ <fileSets>
+ <fileSet>
+ <directory>../artifacts/</directory>
+ <outputDirectory>${project.artifactId}-${project.version}</outputDirectory>
+ <includes>
+ <include>**/*.xml</include>
+ </includes>
+ <excludes>
+ <exclude>pom.xml</exclude>
+ <exclude>src/**</exclude>
+ </excludes>
+ </fileSet>
+ </fileSets>
+ <files>
+ <file>
+ <source>${project.basedir}/README.md</source>
+ <outputDirectory>${project.artifactId}-${project.version}</outputDirectory>
+ <filtered>true</filtered>
+ <fileMode>644</fileMode>
+ </file>
+ <file>
+ <source>src/main/notice/NOTICE</source>
+ <outputDirectory>${project.artifactId}-${project.version}</outputDirectory>
+ <filtered>true</filtered>
+ <fileMode>644</fileMode>
+ </file>
+ <file>
+ <source>src/main/license/LICENSE</source>
+ <outputDirectory>${project.artifactId}-${project.version}</outputDirectory>
+ <filtered>true</filtered>
+ <fileMode>644</fileMode>
+ </file>
+ </files>
+</assembly>
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/distribution/src/main/license/LICENSE
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/distribution/src/main/license/LICENSE b/extensions/cep/modules/distribution/src/main/license/LICENSE
new file mode 100644
index 0000000..25202d8
--- /dev/null
+++ b/extensions/cep/modules/distribution/src/main/license/LICENSE
@@ -0,0 +1,204 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
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+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
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+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed 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.
+
+===================================================================================
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/distribution/src/main/notice/NOTICE
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/distribution/src/main/notice/NOTICE b/extensions/cep/modules/distribution/src/main/notice/NOTICE
new file mode 100644
index 0000000..46ddddd
--- /dev/null
+++ b/extensions/cep/modules/distribution/src/main/notice/NOTICE
@@ -0,0 +1,7 @@
+Apache Stratos CEP Extensions
+Copyright 2015 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
+================================================================================
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/stratos-cep-extension/pom.xml
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/stratos-cep-extension/pom.xml b/extensions/cep/modules/stratos-cep-extension/pom.xml
new file mode 100644
index 0000000..1905ed4
--- /dev/null
+++ b/extensions/cep/modules/stratos-cep-extension/pom.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ # 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.
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.stratos</groupId>
+ <artifactId>cep-extensions</artifactId>
+ <version>4.1.2</version>
+ <relativePath>../../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>org.apache.stratos.cep.extension</artifactId>
+ <name>Apache Stratos - CEP Extensions</name>
+ <description>Apache Stratos CEP Extensions</description>
+
+ <repositories>
+ <repository>
+ <id>wso2-maven2-repository</id>
+ <name>WSO2 Maven2 Repository</name>
+ <url>http://dist.wso2.org/maven2</url>
+ </repository>
+ </repositories>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.wso2.siddhi</groupId>
+ <artifactId>siddhi-core</artifactId>
+ <version>2.0.0-wso2v5</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.stratos</groupId>
+ <artifactId>org.apache.stratos.messaging</artifactId>
+ <version>${project.version}</version>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-compiler-plugin</artifactId>
+ </plugin>
+ </plugins>
+ </build>
+</project>
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/CEPTopologyEventReceiver.java
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/CEPTopologyEventReceiver.java b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/CEPTopologyEventReceiver.java
new file mode 100644
index 0000000..59c70c5
--- /dev/null
+++ b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/CEPTopologyEventReceiver.java
@@ -0,0 +1,99 @@
+/*
+ * 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.stratos.cep.extension;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.stratos.messaging.event.Event;
+import org.apache.stratos.messaging.event.topology.CompleteTopologyEvent;
+import org.apache.stratos.messaging.event.topology.MemberActivatedEvent;
+import org.apache.stratos.messaging.event.topology.MemberTerminatedEvent;
+import org.apache.stratos.messaging.listener.topology.CompleteTopologyEventListener;
+import org.apache.stratos.messaging.listener.topology.MemberActivatedEventListener;
+import org.apache.stratos.messaging.listener.topology.MemberTerminatedEventListener;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyEventReceiver;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyManager;
+
+/**
+ * CEP Topology Receiver for Fault Handling Window Processor.
+ */
+public class CEPTopologyEventReceiver extends TopologyEventReceiver {
+
+ private static final Log log = LogFactory.getLog(CEPTopologyEventReceiver.class);
+
+ private FaultHandlingWindowProcessor faultHandler;
+
+ public CEPTopologyEventReceiver(FaultHandlingWindowProcessor faultHandler) {
+ this.faultHandler = faultHandler;
+ addEventListeners();
+ }
+
+ @Override
+ public void execute() {
+ super.execute();
+ log.info("CEP topology event receiver thread started");
+ }
+
+ private void addEventListeners() {
+ // Load member time stamp map from the topology as a one time task
+ addEventListener(new CompleteTopologyEventListener() {
+ private boolean initialized;
+
+ @Override
+ protected void onEvent(Event event) {
+ if (!initialized) {
+ try {
+ TopologyManager.acquireReadLock();
+ log.debug("Complete topology event received to fault handling window processor.");
+ CompleteTopologyEvent completeTopologyEvent = (CompleteTopologyEvent) event;
+ initialized = faultHandler.loadTimeStampMapFromTopology(completeTopologyEvent.getTopology());
+ } catch (Exception e) {
+ log.error("Error loading member time stamp map from complete topology event.", e);
+ } finally {
+ TopologyManager.releaseReadLock();
+ }
+ }
+ }
+ });
+
+ // Remove member from the time stamp map when MemberTerminated event is received.
+ addEventListener(new MemberTerminatedEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+ MemberTerminatedEvent memberTerminatedEvent = (MemberTerminatedEvent) event;
+ faultHandler.getMemberTimeStampMap().remove(memberTerminatedEvent.getMemberId());
+ log.debug("Member was removed from the timestamp map: [member] " + memberTerminatedEvent.getMemberId());
+ }
+ });
+
+ // Add member to time stamp map whenever member is activated
+ addEventListener(new MemberActivatedEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+ MemberActivatedEvent memberActivatedEvent = (MemberActivatedEvent) event;
+
+ // do not put this member if we have already received a health event
+ faultHandler.getMemberTimeStampMap().putIfAbsent(memberActivatedEvent.getMemberId(),
+ System.currentTimeMillis());
+ log.debug("Member was added to the timestamp map: [member] " + memberActivatedEvent.getMemberId());
+ }
+ });
+ }
+}
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/ConcatWindowProcessor.java
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/ConcatWindowProcessor.java b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/ConcatWindowProcessor.java
new file mode 100644
index 0000000..699f036
--- /dev/null
+++ b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/ConcatWindowProcessor.java
@@ -0,0 +1,54 @@
+/*
+ * 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.stratos.cep.extension;
+import org.wso2.siddhi.core.config.SiddhiContext;
+import org.wso2.siddhi.core.executor.function.FunctionExecutor;
+import org.wso2.siddhi.query.api.definition.Attribute;
+import org.wso2.siddhi.query.api.extension.annotation.SiddhiExtension;
+
+@SiddhiExtension(namespace = "stratos", function = "concat")
+public class ConcatWindowProcessor extends FunctionExecutor {
+ Attribute.Type returnType = Attribute.Type.STRING;
+ @Override
+ public void init(Attribute.Type[] types, SiddhiContext siddhiContext) {
+ }
+
+ @Override
+ protected Object process(Object obj) {
+ if (obj instanceof Object[]) {
+ StringBuffer sb=new StringBuffer();
+ for (Object aObj : (Object[]) obj) {
+ sb.append(aObj);
+ }
+ return sb.toString();
+ } else {
+ return obj.toString();
+ }
+
+ }
+
+ @Override
+ public void destroy() {
+ }
+
+ @Override
+ public Attribute.Type getReturnType() {
+ return returnType;
+ }
+}
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/FaultHandlingWindowProcessor.java
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/FaultHandlingWindowProcessor.java b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/FaultHandlingWindowProcessor.java
new file mode 100644
index 0000000..0aa01ed
--- /dev/null
+++ b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/FaultHandlingWindowProcessor.java
@@ -0,0 +1,349 @@
+/*
+ * 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.stratos.cep.extension;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.log4j.Logger;
+import org.apache.stratos.common.threading.StratosThreadPool;
+import org.apache.stratos.messaging.broker.publish.EventPublisher;
+import org.apache.stratos.messaging.broker.publish.EventPublisherPool;
+import org.apache.stratos.messaging.domain.topology.*;
+import org.apache.stratos.messaging.event.health.stat.MemberFaultEvent;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyManager;
+import org.apache.stratos.messaging.util.MessagingUtil;
+import org.wso2.siddhi.core.config.SiddhiContext;
+import org.wso2.siddhi.core.event.StreamEvent;
+import org.wso2.siddhi.core.event.in.InEvent;
+import org.wso2.siddhi.core.event.in.InListEvent;
+import org.wso2.siddhi.core.persistence.ThreadBarrier;
+import org.wso2.siddhi.core.query.QueryPostProcessingElement;
+import org.wso2.siddhi.core.query.processor.window.RunnableWindowProcessor;
+import org.wso2.siddhi.core.query.processor.window.WindowProcessor;
+import org.wso2.siddhi.core.util.collection.queue.scheduler.ISchedulerSiddhiQueue;
+import org.wso2.siddhi.core.util.collection.queue.scheduler.SchedulerSiddhiQueue;
+import org.wso2.siddhi.core.util.collection.queue.scheduler.SchedulerSiddhiQueueGrid;
+import org.wso2.siddhi.query.api.definition.AbstractDefinition;
+import org.wso2.siddhi.query.api.expression.Expression;
+import org.wso2.siddhi.query.api.expression.Variable;
+import org.wso2.siddhi.query.api.expression.constant.IntConstant;
+import org.wso2.siddhi.query.api.expression.constant.LongConstant;
+import org.wso2.siddhi.query.api.extension.annotation.SiddhiExtension;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * CEP window processor to handle faulty member instances. This window processor is responsible for
+ * publishing MemberFault event if health stats are not received within a given time window.
+ */
+@SiddhiExtension(namespace = "stratos", function = "faultHandling")
+public class FaultHandlingWindowProcessor extends WindowProcessor implements RunnableWindowProcessor {
+
+ private static final Logger log = Logger.getLogger(FaultHandlingWindowProcessor.class);
+
+ private static final int TIME_OUT = 60 * 1000;
+ public static final String CEP_EXTENSION_THREAD_POOL_KEY = "cep.extension.thread.pool";
+ public static final int CEP_EXTENSION_THREAD_POOL_SIZE = 10;
+
+ private ExecutorService executorService;
+ private ScheduledExecutorService faultHandleScheduler;
+ private ScheduledFuture<?> lastSchedule;
+ private ThreadBarrier threadBarrier;
+ private long timeToKeep;
+ private ISchedulerSiddhiQueue<StreamEvent> window;
+ private EventPublisher healthStatPublisher =
+ EventPublisherPool.getPublisher(MessagingUtil.Topics.HEALTH_STAT_TOPIC.getTopicName());
+ private Map<String, Object> MemberFaultEventMap = new HashMap<String, Object>();
+ private Map<String, Object> memberFaultEventMessageMap = new HashMap<String, Object>();
+
+ // Map of member id's to their last received health event time stamp
+ private ConcurrentHashMap<String, Long> memberTimeStampMap = new ConcurrentHashMap<String, Long>();
+
+ // Event receiver to receive topology events published by cloud-controller
+ private CEPTopologyEventReceiver cepTopologyEventReceiver = new CEPTopologyEventReceiver(this);
+
+ // Stratos member id attribute index in stream execution plan
+ private int memberIdAttrIndex;
+
+ @Override
+ protected void processEvent(InEvent event) {
+ addDataToMap(event);
+ }
+
+ @Override
+ protected void processEvent(InListEvent listEvent) {
+ for (int i = 0, size = listEvent.getActiveEvents(); i < size; i++) {
+ addDataToMap((InEvent) listEvent.getEvent(i));
+ }
+ }
+
+ /**
+ * Add new entry to time stamp map from the received event.
+ *
+ * @param event Event received by Siddhi.
+ */
+ protected void addDataToMap(InEvent event) {
+ String id = (String) event.getData()[memberIdAttrIndex];
+ //checking whether this member is the topology.
+ //sometimes there can be a delay between publishing member terminated events
+ //and actually terminating instances. Hence CEP might get events for already terminated members
+ //so we are checking the topology for the member existence
+ Member member = getMemberFromId(id);
+ if (null == member) {
+ log.debug("Member not found in the topology. Event rejected");
+ return;
+ }
+ if (StringUtils.isNotEmpty(id)) {
+ memberTimeStampMap.put(id, event.getTimeStamp());
+ } else {
+ log.warn("NULL member id found in the event received. Event rejected.");
+ }
+ if (log.isDebugEnabled()){
+ log.debug("Event received from [member-id] " + id + " [time-stamp] " + event.getTimeStamp());
+ }
+ }
+
+ @Override
+ public Iterator<StreamEvent> iterator() {
+ return window.iterator();
+ }
+
+ @Override
+ public Iterator<StreamEvent> iterator(String predicate) {
+ if (siddhiContext.isDistributedProcessingEnabled()) {
+ return ((SchedulerSiddhiQueueGrid<StreamEvent>) window).iterator(predicate);
+ } else {
+ return window.iterator();
+ }
+ }
+
+ /**
+ * Retrieve the current activated members from the topology and initialize the timestamp map.
+ * This will allow the system to recover from a restart
+ *
+ * @param topology Topology model object
+ */
+ boolean loadTimeStampMapFromTopology(Topology topology){
+
+ long currentTimeStamp = System.currentTimeMillis();
+ if (topology == null || topology.getServices() == null){
+ return false;
+ }
+ // TODO make this efficient by adding APIs to messaging component
+ for (Service service : topology.getServices()) {
+ if (service.getClusters() != null) {
+ for (Cluster cluster : service.getClusters()) {
+ if (cluster.getMembers() != null) {
+ for (Member member : cluster.getMembers()) {
+ // we are checking faulty status only in previously activated members
+ if (member != null && MemberStatus.Active.equals(member.getStatus())) {
+ // Initialize the member time stamp map from the topology at the beginning
+ memberTimeStampMap.putIfAbsent(member.getMemberId(), currentTimeStamp);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (log.isDebugEnabled()){
+ log.debug("Member timestamps were successfully loaded from the topology: [timestamps] " +
+ memberTimeStampMap);
+ }
+ return true;
+ }
+
+ private Member getMemberFromId(String memberId){
+ if (StringUtils.isEmpty(memberId)){
+ return null;
+ }
+ if (TopologyManager.getTopology().isInitialized()){
+ try {
+ TopologyManager.acquireReadLock();
+ if (TopologyManager.getTopology().getServices() == null){
+ return null;
+ }
+ // TODO make this efficient by adding APIs to messaging component
+ for (Service service : TopologyManager.getTopology().getServices()) {
+ if (service.getClusters() != null) {
+ for (Cluster cluster : service.getClusters()) {
+ if (cluster.getMembers() != null) {
+ for (Member member : cluster.getMembers()){
+ if (memberId.equals(member.getMemberId())){
+ return member;
+ }
+ }
+ }
+ }
+ }
+ }
+ } catch (Exception e) {
+ log.error("Error while reading topology" + e);
+ } finally {
+ TopologyManager.releaseReadLock();
+ }
+ }
+ return null;
+ }
+
+ private void publishMemberFault(String memberId){
+ Member member = getMemberFromId(memberId);
+ if (member == null){
+ log.warn("Failed to publish member fault event. Member having [member-id] " + memberId +
+ " does not exist in topology");
+ return;
+ }
+ log.info("Publishing member fault event for [member-id] " + memberId);
+
+ MemberFaultEvent memberFaultEvent = new MemberFaultEvent(member.getClusterId(), member.getClusterInstanceId(),
+ member.getMemberId(), member.getPartitionId(),
+ member.getNetworkPartitionId(), 0);
+
+ memberFaultEventMessageMap.put("message", memberFaultEvent);
+ healthStatPublisher.publish(MemberFaultEventMap, true);
+ }
+
+ @Override
+ public void run() {
+ try {
+ threadBarrier.pass();
+
+ for (Object o : memberTimeStampMap.entrySet()) {
+ Map.Entry pair = (Map.Entry) o;
+ long currentTime = System.currentTimeMillis();
+ Long eventTimeStamp = (Long) pair.getValue();
+
+ if ((currentTime - eventTimeStamp) > TIME_OUT) {
+ log.info("Faulty member detected [member-id] " + pair.getKey() + " with [last time-stamp] " +
+ eventTimeStamp + " [time-out] " + TIME_OUT + " milliseconds");
+ publishMemberFault((String) pair.getKey());
+ }
+ }
+ if (log.isDebugEnabled()){
+ log.debug("Fault handling processor iteration completed with [time-stamp map length] " +
+ memberTimeStampMap.size() + " [time-stamp map] " + memberTimeStampMap);
+ }
+ } catch (Throwable t) {
+ log.error(t.getMessage(), t);
+ } finally {
+ if (lastSchedule != null) {
+ lastSchedule.cancel(false);
+ }
+ lastSchedule = faultHandleScheduler.schedule(this, timeToKeep, TimeUnit.MILLISECONDS);
+ }
+ }
+
+ @Override
+ protected Object[] currentState() {
+ return new Object[]{window.currentState()};
+ }
+
+ @Override
+ protected void restoreState(Object[] data) {
+ window.restoreState(data);
+ window.restoreState((Object[]) data[0]);
+ window.reSchedule();
+ }
+
+ @Override
+ protected void init(Expression[] parameters, QueryPostProcessingElement nextProcessor,
+ AbstractDefinition streamDefinition, String elementId, boolean async, SiddhiContext siddhiContext) {
+
+ if (parameters[0] instanceof IntConstant) {
+ timeToKeep = ((IntConstant) parameters[0]).getValue();
+ } else {
+ timeToKeep = ((LongConstant) parameters[0]).getValue();
+ }
+
+ String memberIdAttrName = ((Variable) parameters[1]).getAttributeName();
+ memberIdAttrIndex = streamDefinition.getAttributePosition(memberIdAttrName);
+
+ if (this.siddhiContext.isDistributedProcessingEnabled()) {
+ window = new SchedulerSiddhiQueueGrid<StreamEvent>(elementId, this, this.siddhiContext, this.async);
+ } else {
+ window = new SchedulerSiddhiQueue<StreamEvent>(this);
+ }
+ MemberFaultEventMap.put("org.apache.stratos.messaging.event.health.stat.MemberFaultEvent", memberFaultEventMessageMap);
+
+ executorService = StratosThreadPool.getExecutorService(CEP_EXTENSION_THREAD_POOL_KEY,
+ CEP_EXTENSION_THREAD_POOL_SIZE);
+ cepTopologyEventReceiver.setExecutorService(executorService);
+ cepTopologyEventReceiver.execute();
+
+ //Ordinary scheduling
+ window.schedule();
+ if (log.isDebugEnabled()){
+ log.debug("Fault handling window processor initialized with [timeToKeep] " + timeToKeep +
+ ", [memberIdAttrName] " + memberIdAttrName + ", [memberIdAttrIndex] " + memberIdAttrIndex +
+ ", [distributed-enabled] " + this.siddhiContext.isDistributedProcessingEnabled());
+ }
+ }
+
+ @Override
+ public void schedule() {
+ if (lastSchedule != null) {
+ lastSchedule.cancel(false);
+ }
+ lastSchedule = faultHandleScheduler.schedule(this, timeToKeep, TimeUnit.MILLISECONDS);
+ }
+
+ @Override
+ public void scheduleNow() {
+ if (lastSchedule != null) {
+ lastSchedule.cancel(false);
+ }
+ lastSchedule = faultHandleScheduler.schedule(this, 0, TimeUnit.MILLISECONDS);
+ }
+
+ @Override
+ public void setScheduledExecutorService(ScheduledExecutorService scheduledExecutorService) {
+ this.faultHandleScheduler = scheduledExecutorService;
+ }
+
+ @Override
+ public void setThreadBarrier(ThreadBarrier threadBarrier) {
+ this.threadBarrier = threadBarrier;
+ }
+
+ @Override
+ public void destroy(){
+ // terminate topology listener thread
+ cepTopologyEventReceiver.terminate();
+ window = null;
+
+ // Shutdown executor service
+ if(executorService != null) {
+ try {
+ executorService.shutdownNow();
+ } catch (Exception e) {
+ log.warn("An error occurred while shutting down cep extension executor service", e);
+ }
+ }
+ }
+
+ public ConcurrentHashMap<String, Long> getMemberTimeStampMap() {
+ return memberTimeStampMap;
+ }
+}
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/GradientFinderWindowProcessor.java
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/GradientFinderWindowProcessor.java b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/GradientFinderWindowProcessor.java
new file mode 100644
index 0000000..dff0f79
--- /dev/null
+++ b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/GradientFinderWindowProcessor.java
@@ -0,0 +1,283 @@
+/*
+ * 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.stratos.cep.extension;
+
+import org.apache.log4j.Logger;
+import org.wso2.siddhi.core.config.SiddhiContext;
+import org.wso2.siddhi.core.event.StreamEvent;
+import org.wso2.siddhi.core.event.in.InEvent;
+import org.wso2.siddhi.core.event.in.InListEvent;
+import org.wso2.siddhi.core.event.remove.RemoveEvent;
+import org.wso2.siddhi.core.event.remove.RemoveListEvent;
+import org.wso2.siddhi.core.persistence.ThreadBarrier;
+import org.wso2.siddhi.core.query.QueryPostProcessingElement;
+import org.wso2.siddhi.core.query.processor.window.RunnableWindowProcessor;
+import org.wso2.siddhi.core.query.processor.window.WindowProcessor;
+import org.wso2.siddhi.core.util.collection.queue.scheduler.ISchedulerSiddhiQueue;
+import org.wso2.siddhi.core.util.collection.queue.scheduler.SchedulerSiddhiQueue;
+import org.wso2.siddhi.core.util.collection.queue.scheduler.SchedulerSiddhiQueueGrid;
+import org.wso2.siddhi.query.api.definition.AbstractDefinition;
+import org.wso2.siddhi.query.api.definition.Attribute;
+import org.wso2.siddhi.query.api.definition.Attribute.Type;
+import org.wso2.siddhi.query.api.expression.Expression;
+import org.wso2.siddhi.query.api.expression.Variable;
+import org.wso2.siddhi.query.api.expression.constant.IntConstant;
+import org.wso2.siddhi.query.api.expression.constant.LongConstant;
+import org.wso2.siddhi.query.api.extension.annotation.SiddhiExtension;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.concurrent.RejectedExecutionException;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
+@SiddhiExtension(namespace = "stratos", function = "gradient")
+public class GradientFinderWindowProcessor extends WindowProcessor implements RunnableWindowProcessor {
+
+ static final Logger log = Logger.getLogger(GradientFinderWindowProcessor.class);
+ private ScheduledExecutorService eventRemoverScheduler;
+ private ScheduledFuture<?> lastSchedule;
+ private long timeToKeep;
+ private int subjectedAttrIndex;
+ private Attribute.Type subjectedAttrType;
+ private List<InEvent> newEventList;
+ private List<RemoveEvent> oldEventList;
+ private ThreadBarrier threadBarrier;
+ private ISchedulerSiddhiQueue<StreamEvent> window;
+
+ @Override
+ protected void processEvent(InEvent event) {
+ acquireLock();
+ try {
+ newEventList.add(event);
+ } finally {
+ releaseLock();
+ }
+ }
+
+ @Override
+ protected void processEvent(InListEvent listEvent) {
+ acquireLock();
+ try {
+ System.out.println(listEvent);
+ for (int i = 0, size = listEvent.getActiveEvents(); i < size; i++) {
+ newEventList.add((InEvent) listEvent.getEvent(i));
+ }
+ } finally {
+ releaseLock();
+ }
+ }
+
+ @Override
+ public Iterator<StreamEvent> iterator() {
+ return window.iterator();
+ }
+
+ @Override
+ public Iterator<StreamEvent> iterator(String predicate) {
+ if (siddhiContext.isDistributedProcessingEnabled()) {
+ return ((SchedulerSiddhiQueueGrid<StreamEvent>) window).iterator(predicate);
+ } else {
+ return window.iterator();
+ }
+ }
+
+
+ @Override
+ public void run() {
+ acquireLock();
+ try {
+ long scheduledTime = System.currentTimeMillis();
+ try {
+ oldEventList.clear();
+ while (true) {
+ threadBarrier.pass();
+ RemoveEvent removeEvent = (RemoveEvent) window.poll();
+ if (removeEvent == null) {
+ if (oldEventList.size() > 0) {
+ nextProcessor.process(new RemoveListEvent(
+ oldEventList.toArray(new RemoveEvent[oldEventList.size()])));
+ oldEventList.clear();
+ }
+
+ if (newEventList.size() > 0) {
+ InEvent[] inEvents =
+ newEventList.toArray(new InEvent[newEventList.size()]);
+ for (InEvent inEvent : inEvents) {
+ window.put(new RemoveEvent(inEvent, -1));
+ }
+
+ InEvent[] gradientEvents = gradient(inEvents[0], inEvents[newEventList.size() - 1]);
+
+ for (InEvent inEvent : gradientEvents) {
+ window.put(new RemoveEvent(inEvent, -1));
+ }
+ nextProcessor.process(new InListEvent(gradientEvents));
+
+ newEventList.clear();
+ }
+
+ long diff = timeToKeep - (System.currentTimeMillis() - scheduledTime);
+ if (diff > 0) {
+ try {
+ if (lastSchedule != null) {
+ lastSchedule.cancel(false);
+ }
+ lastSchedule = eventRemoverScheduler.schedule(this, diff, TimeUnit.MILLISECONDS);
+ } catch (RejectedExecutionException ex) {
+ log.warn("scheduling cannot be accepted for execution: elementID " +
+ elementId);
+ }
+ break;
+ }
+ scheduledTime = System.currentTimeMillis();
+ } else {
+ oldEventList.add(new RemoveEvent(removeEvent, System.currentTimeMillis()));
+ }
+ }
+ } catch (Throwable t) {
+ log.error(t.getMessage(), t);
+ }
+ } finally {
+ releaseLock();
+ }
+ }
+
+
+ /**
+ * This function will calculate the linear gradient (per second) of the events received during
+ * a specified time period.
+ */
+ private InEvent[] gradient(InEvent firstInEvent, InEvent lastInEvent) {
+ double firstVal = 0.0, lastVal = 0.0;
+ // FIXME I'm not sure whether there's some other good way to do correct casting,
+ // based on the type.
+ if (Type.DOUBLE.equals(subjectedAttrType)) {
+ firstVal = (Double) firstInEvent.getData()[subjectedAttrIndex];
+ lastVal = (Double) lastInEvent.getData()[subjectedAttrIndex];
+ } else if (Type.INT.equals(subjectedAttrType)) {
+ firstVal = (Integer) firstInEvent.getData()[subjectedAttrIndex];
+ lastVal = (Integer) lastInEvent.getData()[subjectedAttrIndex];
+ } else if (Type.LONG.equals(subjectedAttrType)) {
+ firstVal = (Long) firstInEvent.getData()[subjectedAttrIndex];
+ lastVal = (Long) lastInEvent.getData()[subjectedAttrIndex];
+ } else if (Type.FLOAT.equals(subjectedAttrType)) {
+ firstVal = (Float) firstInEvent.getData()[subjectedAttrIndex];
+ lastVal = (Float) lastInEvent.getData()[subjectedAttrIndex];
+ }
+
+ long t1 = firstInEvent.getTimeStamp();
+ long t2 = lastInEvent.getTimeStamp();
+ long millisecondsForASecond = 1000;
+ long tGap = t2 - t1 > millisecondsForASecond ? t2 - t1 : millisecondsForASecond;
+ double gradient = 0.0;
+ if (tGap > 0) {
+ gradient = ((lastVal - firstVal) * millisecondsForASecond) / tGap;
+ }
+ if (log.isDebugEnabled()) {
+ log.debug("Gradient: " + gradient + " Last val: " + lastVal +
+ " First val: " + firstVal + " Time Gap: " + tGap + " t1: "+t1+ " t2: "+
+ t2+" hash: "+this.hashCode());
+ }
+ Object[] data = firstInEvent.getData().clone();
+ data[subjectedAttrIndex] = gradient;
+ InEvent gradientEvent =
+ new InEvent(firstInEvent.getStreamId(), (t1+t2)/2,
+ data);
+ InEvent[] output = new InEvent[1];
+ output[0] = gradientEvent;
+ return output;
+ }
+
+ @Override
+ protected Object[] currentState() {
+ return new Object[]{window.currentState(), oldEventList, newEventList};
+ }
+
+ @Override
+ protected void restoreState(Object[] data) {
+ window.restoreState(data);
+ window.restoreState((Object[]) data[0]);
+ oldEventList = ((ArrayList<RemoveEvent>) data[1]);
+ newEventList = ((ArrayList<InEvent>) data[2]);
+ window.reSchedule();
+ }
+
+ @Override
+ protected void init(Expression[] parameters, QueryPostProcessingElement nextProcessor, AbstractDefinition streamDefinition, String elementId, boolean async, SiddhiContext siddhiContext) {
+ if (parameters[0] instanceof IntConstant) {
+ timeToKeep = ((IntConstant) parameters[0]).getValue();
+ } else {
+ timeToKeep = ((LongConstant) parameters[0]).getValue();
+ }
+
+ String subjectedAttr = ((Variable)parameters[1]).getAttributeName();
+ subjectedAttrIndex = streamDefinition.getAttributePosition(subjectedAttr);
+ subjectedAttrType = streamDefinition.getAttributeType(subjectedAttr);
+
+ oldEventList = new ArrayList<RemoveEvent>();
+ if (this.siddhiContext.isDistributedProcessingEnabled()) {
+ newEventList = this.siddhiContext.getHazelcastInstance().getList(elementId + "-newEventList");
+ } else {
+ newEventList = new ArrayList<InEvent>();
+ }
+
+ if (this.siddhiContext.isDistributedProcessingEnabled()) {
+ window = new SchedulerSiddhiQueueGrid<StreamEvent>(elementId, this, this.siddhiContext, this.async);
+ } else {
+ window = new SchedulerSiddhiQueue<StreamEvent>(this);
+ }
+ //Ordinary scheduling
+ window.schedule();
+
+ }
+
+ @Override
+ public void schedule() {
+ if (lastSchedule != null) {
+ lastSchedule.cancel(false);
+ }
+ lastSchedule = eventRemoverScheduler.schedule(this, timeToKeep, TimeUnit.MILLISECONDS);
+ }
+
+ public void scheduleNow() {
+ if (lastSchedule != null) {
+ lastSchedule.cancel(false);
+ }
+ lastSchedule = eventRemoverScheduler.schedule(this, 0, TimeUnit.MILLISECONDS);
+ }
+
+ @Override
+ public void setScheduledExecutorService(ScheduledExecutorService scheduledExecutorService) {
+ this.eventRemoverScheduler = scheduledExecutorService;
+ }
+
+ public void setThreadBarrier(ThreadBarrier threadBarrier) {
+ this.threadBarrier = threadBarrier;
+ }
+
+ @Override
+ public void destroy(){
+ oldEventList = null;
+ newEventList = null;
+ window = null;
+ }
+}
http://git-wip-us.apache.org/repos/asf/stratos/blob/d97d9c78/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/MemeberRequestHandlingCapabilityWindowProcessor.java
----------------------------------------------------------------------
diff --git a/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/MemeberRequestHandlingCapabilityWindowProcessor.java b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/MemeberRequestHandlingCapabilityWindowProcessor.java
new file mode 100755
index 0000000..0dc24bd
--- /dev/null
+++ b/extensions/cep/modules/stratos-cep-extension/src/main/java/org/apache/stratos/cep/extension/MemeberRequestHandlingCapabilityWindowProcessor.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.stratos.cep.extension;
+
+/**
+ * Member Request Handling Capability Window Processor
+ */
+
+import org.wso2.siddhi.core.config.SiddhiContext;
+import org.wso2.siddhi.core.executor.function.FunctionExecutor;
+import org.wso2.siddhi.query.api.definition.Attribute;
+import org.wso2.siddhi.query.api.extension.annotation.SiddhiExtension;
+
+@SiddhiExtension(namespace = "stratos", function = "divider")
+public class MemeberRequestHandlingCapabilityWindowProcessor extends FunctionExecutor {
+
+ Attribute.Type returnType = Attribute.Type.DOUBLE;
+
+ @Override
+ public void init(Attribute.Type[] types, SiddhiContext siddhiContext) {
+ }
+
+ @Override
+ protected Object process(Object obj) {
+
+ double[] value = new double[2];
+ if (obj instanceof Object[]) {
+ int i=0;
+ for (Object aObj : (Object[]) obj) {
+ value[i]= Double.parseDouble(String.valueOf(aObj));
+ i++;
+ }
+ }//to do avoid deviding zero number of active instances won't be zero cz there is min
+ Double unit = (value[0] / value[1]);
+ if(!unit.isNaN() && !unit.isInfinite())
+ return unit;
+ else
+ return 0.0;
+
+ }
+
+ @Override
+ public void destroy() {
+
+ }
+
+ @Override
+ public Attribute.Type getReturnType() {
+ return returnType;
+ }
+}