I was able to build a thing that does what I need but with *akka-http* and
crappy Java code for the WebSocket part with Jetty.
- The *Relay* uses an *HttpReceiver* and *WebSocketEmitter**.*
1) When the *WebsocketEmiter* receive a WebSocket connection, it store it
in a *Map*[*TeamId*, *WebSocketConnection*]*.*
2) When the *HttpReceiver* receive a *Command* it create a *Request*(
*Command*)* and *execute a callback method on the relay that start a new
*Handler*(*Request*, *Emitter*)*. *
3) The *Handler* :
3.1) forward the request to *WebSocketEmitter* that send it on the
*WebSocketConnection* and wait for a response* (blocking).
3.2) send the response to the *Request* which success a *Promise*
4) The *HttpReceiver* complete the request by wirting the response.
* The *WebSocketConnection* don't really wait for a reponse, it send the
*Command
*to the remote and set itslef in waiting state (*Object.wait*). When the
*WebSocketConnection* receive a message he parse and store the result and
notify itself to return the result :
Result send(final Command command) {
write(command);
wait();
return this.result;
}
void onWebSocketText(String message) {
this.result = parse(message);
notify();
}
I really would like to replace this part with akka-websocket but
definitively lacks of knowledge on this subject.
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