Debug logging for WebSocket lifecycle in WebSocketStompClient

[alexandrumm]

@pivotal-issuemaster This is an Obvious Fix

[rstoyanchev]

I think this should be done by decorating the WebSocketHandler, i.e. WebSocketTcpConnectionHandlerAdapter, with LoggingWebSocketHandlerDecorator consistent with what we do in other places like WebSocketConnectionManager and WebSocketHttpRequestHandler.

[alexandrumm]

Hello, @rstoyanchev.
First of all thanks for responding and taking care of this PR.
I have a question with regards to your suggestion, WebSocketTcpConnectionHandlerAdapter it is also implementing the interface ListenableFutureCallback and the LoggingWebSocketHandlerDecorator does not expect or suppose, I think, to cover this type of handler, so could you please give me a hint here on how to proceed?

Thanks in advance!

[rstoyanchev]

This should be fine:

WebSocketTcpConnectionHandlerAdapter adapter =  new WebSocketTcpConnectionHandlerAdapter(session);
getWebSocketClient()
        .doHandshake(new LoggingWebSocketHandlerDecorator(adapter), handshakeHeaders, url)
        .addCallback(adapter);

[alexandrumm]

Right, I missed the obvious solution there. Thanks a lot! 😄