So in the XML, you can do something like this:
<route>
<from uri="..." />
<choice>
<when>
<header>???</header>
<to uri="..." />
</when>
</choice>
</route>
My question is, what setup do I need to get this to work and what goes
in the ??? -- basically, what is the correct setup and usage for the
<header> element. When running in Java 6 with the camel-script JAR on
the class path, I'm getting this:
[ltMessageListenerContainer-106] DeadLetterChannel ERROR
Failed delivery for exchangeId:
ID-hagrid.local/57149-1214611750742/0-1. On delivery attempt: 0
caught: java.lang.IllegalArgumentException: No script engine could be
created for: header
java.lang.IllegalArgumentException: No script engine could be created
for: header
at
org.apache.camel.builder.script.ScriptBuilder.getEngine(ScriptBuilder.java:381)
at
org.apache.camel.builder.script.ScriptBuilder.getScriptContext(ScriptBuilder.java:422)
at
org.apache.camel.builder.script.ScriptBuilder.evaluateScript(ScriptBuilder.java:484)
at
org.apache.camel.builder.script.ScriptBuilder.matches(ScriptBuilder.java:82)
at
org.apache.camel.builder.script.ScriptBuilder.matches(ScriptBuilder.java:49)
at
org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:47)
at
org.apache.camel.impl.converter.AsyncProcessorTypeConverter$ProcessorToAsynProcessorBridge.process(AsyncProcessorTypeConverter.java:44)
at
org.apache.camel.processor.DeadLetterChannel.process(DeadLetterChannel.java:143)
at
org.apache.camel.processor.DeadLetterChannel.process(DeadLetterChannel.java:87)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:101)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:85)
at
org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:40)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:44)
at
org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:68)
at
org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:66)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:531)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:466)
at
org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:435)
at
org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:316)
at
org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:235)
at
org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:887)
at
org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:822)
at java.lang.Thread.run(Thread.java:637)
Is there some other JAR I need? Something else?
Thanks,
Aaron
