Maps the CXF Message to an Event and sends this to a given EvventManipulator
Acts as a callback for the out case and as an PhaseInterceptor in the in case.
Creates a CachedOutPutStream in the message that can be used to
wiretap the content
The interceptor does not yet work streaming so it first copies all
the content to the CachedOutputStream and only then lets CXF
continue on the message