As a GUI developer, I would like access to the existing web-socket, so that I can register message handlers on the server side and on the client-side without having to establish my own web-socket.
- Core client and core GUI server set-up a socket with default handlers and default fail-over capability
- Apps register their own server-side handlers on activate and unregister them on deactivate
- App views register their own client-side handlers on load and unregister them on onload
|ONOS-1235 Enhanced UI extension mechanism to provide message handler factory and took a first cut at the core UiWebSocket mechanism.