Question

How to configure multiple remote activemq brokers (different IP address) in spring context? Below is the configuration for 1 remote broker. I am using camel to create routes that produce and consume messages from and to different queues in multiple remote brokers. Based on the following routes, how do the system knows which remote broker each queue belongs to?

• List item

  from(“direct:start”).to(“activemq:queue:outgoingRequests”)

• List item

  from(“activemq:queue:incomingOrders”).to(“log:Events?
  showAll=true”).to(“bean:jmsService”)

Spring context for 1 broker

org.camel.routes

<bean id="jmsConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
    <property name="brokerURL" value="tcp://10.1.11.97:61616" />
</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"/>
</bean>

Answer 1

Just add more components with different names

<bean id="activemq" class="org.apache.activemq.camel.component.ActiveMQComponent">
   <property name="configuration" ref="jmsConfig"/>
</bean>

<bean id="activemq2" class="org.apache.activemq.camel.component.ActiveMQComponent">
   <property name="configuration" ref="myOtherJmsConfig"/>
</bean>

Then simply use the names:

<from uri="activemq:queue:MY.QUEUE"/><!-- get from "1st" ActiveMQ -->
<to uri="activemq2:queue:MY.QUEUE"/> <!-- put to same queue name on other ActiveMQ -->

Actually, you can call them whatever you want, like “EuropeanMarketBroker” or whatever fits in.