On Mon, Apr 6, 2009 at 7:01 PM, Joe White <joe.wh...@recondotech.com> wrote: > I would like to send a Map<String,MyCustomObject> through Camel using > ActiveMQ JMS , but Camel inspects the body of the message and notes that > it is an instance of Map (JMSBinding.java line 316 in camel 1.5) wraps > it up in a MapMessage and then sends it along. > > > > The issue is that the MapMessage spec will only handle Primitives as the > values in a MapMessage and ultimately this results in an NPE in > activeMq (below). I need to send a complex object as the value. It would > meet my needs if I could avoid the Camel interpretation of my payload > and simply send along an Object message. Is there any way to force the > use of an Object message and just send the Map as an object? > > > > Also, I think that checking instanceof Map to try and build a Map > message is a defect as it should check that the values in the Map are > primitives. > > > > If anybody knows a way around the MapMessage wrapper code to send a Map > that would be very helpful. I'm using Camel 1.5 and ActiveMQ 5.2 In Camel 2.0 you can set which jmsMessageType to use, eg forcing it to use Object.
The only workaround in Camel 1.x is to wrap it in some other form of object type (non Map) And then unwrap it on the consumer side > > > > Thanks > > Joe > > > > > > > > java.lang.NullPointerException > > at > org.apache.activemq.util.MarshallingSupport.marshalPrimitiveMap(Marshall > ingSupport.java:63) > > at > org.apache.activemq.util.MarshallingSupport.marshalPrimitive(Marshalling > Support.java:142) > > at > org.apache.activemq.util.MarshallingSupport.marshalPrimitiveMap(Marshall > ingSupport.java:67) > > at > org.apache.activemq.command.ActiveMQMapMessage.storeContent(ActiveMQMapM > essage.java:132) > > at > org.apache.activemq.command.ActiveMQMapMessage.copy(ActiveMQMapMessage.j > ava:111) > > at > org.apache.activemq.command.ActiveMQMapMessage.copy(ActiveMQMapMessage.j > ava:106) > > at > org.apache.activemq.ActiveMQSession.send(ActiveMQSession.java:1634) > > at > org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer > .java:227) > > at > org.apache.activemq.ActiveMQMessageProducerSupport.send(ActiveMQMessageP > roducerSupport.java:269) > > at > org.springframework.jms.core.JmsTemplate.doSend(JmsTemplate.java:594) > > at > org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.doSend( > JmsConfiguration.java:219) > > at > org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate$1.doInJ > ms(JmsConfiguration.java:184) > > at > org.springframework.jms.core.JmsTemplate.execute(JmsTemplate.java:471) > > at > org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.send(Jm > sConfiguration.java:173) > > at > org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:172) > > at > com.recondotech.service.common.BaseService.register(BaseService.java:118 > ) > > -- Claus Ibsen Apache Camel Committer Open Source Integration: http://fusesource.com Blog: http://davsclaus.blogspot.com/ Twitter: http://twitter.com/davsclaus Apache Camel Reference Card: http://refcardz.dzone.com/refcardz/enterprise-integration
