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Complex Event Processing with Esper and WSO2 ESB

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Prabath Siriwardena
Prabath Siriwardena

by Paul Fremantle, CTO, WSO2

TechnologieBusiness
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Complex Event Processing with Esper and WSO2 ESB Paul Fremantle, CTO, WSO2 29 th July 2008
ESB 1.7 Webinar Series ,[object Object],[object Object],[object Object],[object Object],[object Object]
WSO2 ESB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
WSO2 ESB Configured through the simple UI
What is Complex Event Processing? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Complex Event Processing in Open Source ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Esper in action ,[object Object],[object Object]
Esper Configuration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Esper continued ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Esper support for Axiom ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Esper config for Axiom <esper-configuration xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot; xmlns=&quot;http://www.espertech.com/schema/esper&quot; xsi:noNamespaceSchemaLocation=&quot;esper-configuration-2-0.xsd&quot;> <plugin-event-representation uri=&quot;type://xml/apacheaxiom/OMNode&quot; class-name=&quot;com.espertech.esperio.representation.axiom.AxiomEventRepresentation&quot;/> <plugin-event-type alias=“Ticker&quot;> <resolution-uri value=&quot;type://xml/apacheaxiom/OMNode&quot;/> <initializer> <xml-axiom root-element-name=&quot;getQuote&quot; default-namespace=&quot;http://mycom.com/ns/tick&quot;> <namespace-prefix prefix=“t&quot; namespace= &quot; http://mycom.com/ns/tick&quot;/> <xpath-property property-name=&quot;symbol“ xpath=&quot;//t:tick/t:s&quot; type=&quot;string&quot;/> <xpath-property property-name=“price“ xpath=&quot;//t:tick/t:p&quot; type=“number&quot;/> </xml-axiom> </initializer> </plugin-event-type> </esper-configuration>
Why use Esper with Synapse/WSO2 ESB? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Events in WSO2 ESB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Esper Axiom Mediator ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Getting the Axiom mediator working ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Simple example <task class=&quot;org.apache.synapse.startup.tasks.MessageInjector&quot; name=&quot;Tick&quot;> <property name=&quot;to&quot; value=&quot;urn:tick&quot;/> <property name=&quot;soapAction&quot; value=&quot;urn:tick&quot;/> <property name=&quot;message&quot;> <tick xmlns=&quot;http://mycom.com/ns/tick&quot;> <s>IBM</s> <p>89.6</p> </tick> </property> <trigger interval=&quot;1&quot;/> </task>
In the console
Simple example continued <filter source=&quot;get-property('To')&quot; regex=&quot;urn:tick&quot;> <class name=&quot;org.sciflex.plugins.synapse.esper.mediators.AxiomMediator&quot;> <property name=&quot;Configuration&quot;> <esper-configuration> <!-- AS ON PREVIOUS SLIDE --> </esper-configuration> </property> <property name=&quot;statement&quot; value=&quot;select * from Ticker.win:length_batch(10)&quot;/> <property name=&quot;EventToAddress&quot; value=&quot;urn:newevent&quot;/> </class> </filter> <filter source=&quot;get-property('To')&quot; regex=&quot;urn:newevent&quot;> <log level=&quot;full&quot;/> </filter> RESULT: Every ten ticks one event gets logged
What happens when Esper generates a new Event? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example: Looking for system monitoring events http://ganglia.info Synapse Task Ganglia gmond telnet 8649 <GANGLIA_XML> GMondPoller Job Esper Mediator SELECT AVG(CPU_USER) FROM GANGLIA urn:gmond Log Mediator urn:cpu
Sharing an Esper instance across two mediators ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
FIX example FIX Endpoint (Order generator) WSO2 ESB FIX Endpoint (Order acceptor) Fix Proxy <class AxiomEsperMediator..> <send/> Esper New Event JMS Topic
Futures ,[object Object],[object Object],[object Object]
Questions
Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Complex Event Processing with Esper and WSO2 ESB

  • 1. Complex Event Processing with Esper and WSO2 ESB Paul Fremantle, CTO, WSO2 29 th July 2008
  • 2.
  • 3.
  • 4. WSO2 ESB Configured through the simple UI
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11. Esper config for Axiom <esper-configuration xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot; xmlns=&quot;http://www.espertech.com/schema/esper&quot; xsi:noNamespaceSchemaLocation=&quot;esper-configuration-2-0.xsd&quot;> <plugin-event-representation uri=&quot;type://xml/apacheaxiom/OMNode&quot; class-name=&quot;com.espertech.esperio.representation.axiom.AxiomEventRepresentation&quot;/> <plugin-event-type alias=“Ticker&quot;> <resolution-uri value=&quot;type://xml/apacheaxiom/OMNode&quot;/> <initializer> <xml-axiom root-element-name=&quot;getQuote&quot; default-namespace=&quot;http://mycom.com/ns/tick&quot;> <namespace-prefix prefix=“t&quot; namespace= &quot; http://mycom.com/ns/tick&quot;/> <xpath-property property-name=&quot;symbol“ xpath=&quot;//t:tick/t:s&quot; type=&quot;string&quot;/> <xpath-property property-name=“price“ xpath=&quot;//t:tick/t:p&quot; type=“number&quot;/> </xml-axiom> </initializer> </plugin-event-type> </esper-configuration>
  • 12.
  • 13.
  • 14.
  • 15.
  • 16. Simple example <task class=&quot;org.apache.synapse.startup.tasks.MessageInjector&quot; name=&quot;Tick&quot;> <property name=&quot;to&quot; value=&quot;urn:tick&quot;/> <property name=&quot;soapAction&quot; value=&quot;urn:tick&quot;/> <property name=&quot;message&quot;> <tick xmlns=&quot;http://mycom.com/ns/tick&quot;> <s>IBM</s> <p>89.6</p> </tick> </property> <trigger interval=&quot;1&quot;/> </task>
  • 18. Simple example continued <filter source=&quot;get-property('To')&quot; regex=&quot;urn:tick&quot;> <class name=&quot;org.sciflex.plugins.synapse.esper.mediators.AxiomMediator&quot;> <property name=&quot;Configuration&quot;> <esper-configuration> <!-- AS ON PREVIOUS SLIDE --> </esper-configuration> </property> <property name=&quot;statement&quot; value=&quot;select * from Ticker.win:length_batch(10)&quot;/> <property name=&quot;EventToAddress&quot; value=&quot;urn:newevent&quot;/> </class> </filter> <filter source=&quot;get-property('To')&quot; regex=&quot;urn:newevent&quot;> <log level=&quot;full&quot;/> </filter> RESULT: Every ten ticks one event gets logged
  • 19.
  • 20. Example: Looking for system monitoring events http://ganglia.info Synapse Task Ganglia gmond telnet 8649 <GANGLIA_XML> GMondPoller Job Esper Mediator SELECT AVG(CPU_USER) FROM GANGLIA urn:gmond Log Mediator urn:cpu
  • 21.
  • 22. FIX example FIX Endpoint (Order generator) WSO2 ESB FIX Endpoint (Order acceptor) Fix Proxy <class AxiomEsperMediator..> <send/> Esper New Event JMS Topic
  • 23.
  • 25.