Stacktrace from Camel Context onException

Question

I'm trying to retrieve the stacktrace from the onException handler in Apache Camel:

   <onException>             <exception>java.lang.Exception</exception>             <handled>                 <constant>true</constant>             </handled>              <setHeader headerName="exception">                 <simple>${exception}</simple>             </setHeader>    </onException> 

However, the above only shows the exception rather than the entire stacktrace.

I understand that Camel stores the caught exception as a property on the Exchange with the key: Exchange.EXCEPTION_CAUGHT, but how can this be retrieved from the camel context routes file ?

Answer 1

Use exception.stacktrace to get the stacktrace. See the variables listed in the table at this page: http://camel.apache.org/simple

<simple>${exception.stacktrace}</simple> 

There is also a ${exception.message} to refer to the exception message itself.