While Akka HTTP is accessible to Java 8 users I decided to go for an
alternative which I was trying to avoid but at least I know is of high
performance and it fits right my needs.
When a connection is upgraded to websocket it is passed to an actor, also
every message sent is forwarded to an Actor, Java 8 code snippet below:
vertx.createHttpServer().requestHandler(request -> {
if ("/signal".equals(request.path())) {
final ServerWebSocket socket = request.upgrade();
final ActorRef actorRef = context().system().actorOf(
// Using an internal non-blocking bounded mailbox with capacity
reserved (similar to LMAX)
Props.create(new SignalWebsocketCreator(SourceSupervisor.this,
socket)).withMailbox("bounded-mailbox-1024")
);
socket.setWriteQueueMaxSize(1024).
handler(event -> actorRef.tell(event, noSender())).
closeHandler(event -> actorRef.tell(PoisonPill.getInstance(),
noSender()));
log.info("Websocket connection from '{}' to {} established.",
socket.remoteAddress(), socket.localAddress());
} else {
request.response().setStatusCode(400).end();
}
}).listen(config.getInt("http.port"), config.getString("http.host"));
Hope it helps some Java fellows that are stuck on this matter, not ideal if
you want to strictly stick to Akka like I wanted though it is still a
quick, simple and efficient solution,
Guido.
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