WSO2 Complex Event Processor is succeeded by WSO2 Stream Processor. To view the latest documentation for WSO2 SP, see WSO2 Stream Processor Documentation.
Complex Event Processor 4.2.0

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Introduction

This sample demonstrates how to receive incoming Map, Text  events adheres WSO2 Event format via jms transport. Here we do not do any processing on the incoming event and to verify the messages we use log event publisher to log the received event.

Prerequisites

Follow the steps below to set up the prerequisites before starting the configuration.

  1. Before you configure the WSO2 CEP:

    • Start WSO2 MB 3.1.0

  2. Configure WSO2 CEP by adding relevant libraries to support JMS transport.

  3. Configure sample client by adding relevant jars. See setting up JMS for JMS sample clients.

  4. Open the  <CEP_HOME>/repository/conf/jndi.properties file and register a connection factory named TopicConnectionFactory by entering the following in the register some connection factories section. 

     

    connectionfactory.TopicConnectionFactory=amqp://admin:[email protected]/carbon?brokerlist='tcp://localhost:5672'

Building the sample 

Start the WSO2 CEP server with the sample configuration numbered 0013 with an off-port since the WSO2 MB has started in the default port. For instructions, see Starting sample CEP configurations and append -DportOffset=1 -Dqpid.dest_syntax=BURL to the command as follows.

./wso2cep-samples.sh -sn 0013 -DportOffset=1 -Dqpid.dest_syntax=BURL

This sample configuration does the following:

  • Changes the default Axis2 repo from  <CEP_HOME>/repository/deployment/server to <CEP_HOME>/samples/cep/artifacts/0013
  • Creates a stream with id org.wso2.event.sensor.stream:1.0.0.
  • Create two event receivers named jmsReceiverMap and jmsReceiverText.
  • Create and event publisher to log the received messages with name jmsLogger.
  • portOffset=1 property, the ports used in CEP server are offset by 1 to avoid port conflicts with MB
  • forcing the usage of Binding URL(BURL) address syntax by setting  qpid.dest_syntax system property to BURL .

Executing the sample

  1. Wait until the CEP terminal prompts a message similar as follows.

  2. Open another terminal and navigate to the <CEP_HOME>/samples/cep/producers/jms directory.

    and run one of the  the following commands according to the type of event format to be published:

    ant -DtopicName=topicMap -Dformat=map -Dbroker=mb -Dsn=0013
    ant -DtopicName=topicText -Dformat=text -Dbroker=mb -Dsn=0013

    It builds the jms client and publishes the events at  <CEP_HOME>/samples/cep/artifacts/0013/topicMap.csv and topicText.txt to the jms receiver endpoint.

  3. You can see the events getting received by CEP by the logs in its console.

    for Map formatted events: 



    for Text formatted events:
     

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