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This section describes how to configure WSO2 ESB to work as a JMS-to-JMS proxy service.

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Follow the steps below to configure WSO2 ESB to listen to a JMS queue and consume messages and then send those messages to another JMS queue.

Configure WSO2 ESB with Apache ActiveMQ and set up the JMS listener and sender. For instructions, see Configure with ActiveMQ.

Create a proxy service with the following configuration.To create a proxy service using ESB Tooling, see Working with Proxy Services via ESB Tooling.

Code Block

language	html/xml
title	Example code 3

<proxy name="StockQuoteProxy" transports="jms">
   <target>
       <inSequence>
           <property action="set" name="OUT_ONLY" value="true"/>
           <send>
               <endpoint>
                  <address uri="jms:/SimpleStockQuoteService?transport.jms.ConnectionFactoryJNDIName=QueueConnectionFactory&            java.naming.factory.initial=org.apache.activemq.jndi.ActiveMQInitialContextFactory&java.naming.provider.url=tcp://localhost:61616"/>
               </endpoint>
           </send>
       </inSequence>
   </target>
</proxy>

Note
When entering the above URLs in the management console, replace '`&`' character in the endpoint URL with '`&`'

Tip
In the sample configuration above, ESB listens to a JMS queue named `StockQuoteProxy` and sends messages to another queue named `SimpleStockQuoteService.`

To place a message into a JMS queue, execute following command from <ESB_HOME>/samples/axis2Client directory.

Code Block

ant stockquote -Dmode=placeorder -Dtrpurl="jms:/StockQuoteProxy?transport.jms.ConnectionFactoryJNDIName=QueueConnectionFactory&java.naming.factory.initial=org.apache.activemq.jndi.ActiveMQInitialContextFactory&java.naming.provider.url=tcp://localhost:61616&transport.jms.ContentTypeProperty=Content-Type&transport.jms.DestinationType=queue"

Tip
You can view the ActiveMQ queues by accessing the ActiveMQ management console using the URL `http://0.0.0.0:8161/admin` and using `admin` as both the username and password.

Generally, JMS is used for one-way, asynchronous message exchange. However you can perform synchronous messaging also with JMS. For more information, see JMS Synchronous Invocations : Dual Channel HTTP-to-JMS and JMS Synchronous Invocations : Quad Channel JMS-to-JMS.

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