Thursday, January 30, 2014

Camel cxfendpoint to ActiveMQ queue


  • cxfendpoint expects an outgoing message to be present in order to be sent back; if an out endpoint posting the message to an ActiveMQ  broker is used this will not happen and a timeout error will occur
  • By default output of cxfendpoint message  payload  is of java.io.InputStream. An outgoing ActiveMQ endpoint will just ignore the payload and will save just the headers.
Below is the solution to above mentioned problems 9this must be included in the master ActiveMQ configuration file):
<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:cxf="http://camel.apache.org/schema/cxf"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd
       http://camel.apache.org/schema/cxf http://camel.apache.org/schema/cxf/camel-cxf.xsd">


      <bean id="jmsConnectionFactory" 
         class="org.apache.activemq.ActiveMQConnectionFactory">
         <property name="brokerURL" value="vm://amq-broker?create=false" />
      </bean>
       
      <bean id="pooledConnectionFactory" 
         class="org.apache.activemq.pool.PooledConnectionFactory" init-method="start" destroy-method="stop">
         <property name="maxConnections" value="8" />
         <property name="connectionFactory" ref="jmsConnectionFactory" />
      </bean>
       
      <bean id="jmsConfig" 
         class="org.apache.camel.component.jms.JmsConfiguration">
         <property name="connectionFactory" ref="pooledConnectionFactory"/>
         <property name="concurrentConsumers" value="10"/>
      </bean>
       
      <bean id="activemq" 
          class="org.apache.activemq.camel.component.ActiveMQComponent">
          <property name="configuration" ref="jmsConfig"/>
       
          <!-- if we are using transacted then enable CACHE_CONSUMER (if not using XA) to run faster
               see more details at: http://camel.apache.org/jms 
          <property name="transacted" value="true"/>
          <property name="cacheLevelName" value="CACHE_CONSUMER" />
         -->
      </bean>      

    <!-- camelContext is the Camel runtime, where we can host Camel routes -->    
    <cxf:cxfEndpoint id="server"
                     address="http://localhost:8085/OTRS/service"
                     endpointName="s:BasicHttpBinding_ChangeStateOperations"
                     serviceName="s:ChangeStateService"
                     wsdlURL="examples\conf\wsdl\server.wsdl"
                     xmlns:s="http://tempuri.org/"/>
    
    
    
    <camelContext xmlns="http://camel.apache.org/schema/spring">
         <route>
            <from uri="cxf:bean:server?dataFormat=MESSAGE"/>
                <transform>
                  <simple>${bodyAs(String)}</simple>
                </transform>
                <wireTap uri="activemq:topic:otrs.statusChanged"/>
                <wireTap uri="stream:out"/>
                <transform>
                    <simple>
                        <![CDATA[
    <?xml version="1.0" encoding="utf-8"?>
    <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
      <s:Body>
        <TestWm1Response xmlns="http://tempuri.org/" />
      </s:Body>
    </s:Envelope>
                        ]]>
                    </simple>
                </transform>
            <!--to uri="cxf:bean:ocalculator?dataFormat=MESSAGE"/-->
        </route>
    </camelContext>
</beans>

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