HTTP request info cannot be accessed with REST binding in SwitchYard

Issue

• I have a SwitchYard project with a REST binding that is using a custom message composer.
• I'm trying to get the remote caller IP address and the path info in the compose method but so far I haven't found a way to do it.
• My custom imput message composer extends the RESTEasyMessageComposer. I've tried to get it from the source headers but this info is not there.
• Is there any way to access the original request's HttpRequestInfo at this point? This way I could easily get the path info and the remote address.