I have a Spring XML DSL route that runs as a JMS consumer in request/reply
mode. This route is intended to write a JMS message as a JMS Producer that
will send a request message to a downstream process, with a ReplyTo queue
designated. The reply will however be processed by yet another route that
consumes from the static reply-to queue in use with that downstream process.
My problem is that I can't get the IBM MQ message to accept and pass a
replyToQueue name.
I've setup MQ as follows: ***********
<bean id="springMQConnectionFactory"
class="com.ibm.mq.jms.MQQueueConnectionFactory">
<property name="transportType" value="1" />
<property name="queueManager" value="${qmgr.name}" />
<property name="hostName" value="${qmgr.hostname}" />
<property name="port" value="${qmgr.port}" />
<property name="channel" value="${qmgr.channel}" />
</bean>
<bean id="ibmmq" class="org.apache.camel.component.jms.JmsComponent">
<property name="connectionFactory" ref="springMQConnectionFactory" />
</bean>
Then, the code looks like this **************
<setHeader headerName="CamelJMSDestinationName">
<simple>queue:///MY.REQUEST.Q?targetClient=1</simple>
</setHeader>
<setHeader headerName="JMS_IBM_MsgType">
<simple resultType="java.lang.Integer">1</simple>
</setHeader>
...
<to uri="ibmmq:queue:dummy?replyTo=MY.REPLY.Q&disableReplyTo=true" />
In this mode, the message send fails with IBM MQ return code 2027, meaning
I've tried to send a "request/reply" type message, but without specifying a
replyQ name., which I obviously did.
(I also tried putting the "queue:///" prefix on the replyq name)
I tried the following also.
<setHeader headerName="JMSReplyTo">
<constant>MQ.REPLY.Q</constant>
</setHeader>
But this didn't help.
One interesting thing. When I did not set the JMS_IBM_MsgType at all, the
message was put successfully with the replyTo set in the "to" URI string,
but no replyq was sent with the message. (The message was defaulting to the
"datagram" type.) But when setting the JMSReplyTo header, again the message
was sent with no replyq in it, but after sending the message, but before
returning control to the route, I got an exception thrown as follows.
Exception: java.lang.ClassCastException:
org.apache.activemq.command.ActiveMQQueue cannot be cast to
com.ibm.mq.jms.MQQueue
This makes me think there is some internal conflict between running as a
request/reply JMS consumer on activeMQ, and then attempting to be a Producer
using IBM MQ.
I'm running Camel 2.15.1, MQ 8.0, and ActiveMQ 5.11.0 on Linux and JbossEAP
6
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