Vertx Core - Client Verticle

import org.vertx.java.core.Handler;
import org.vertx.java.core.buffer.Buffer;
import org.vertx.java.core.http.HttpServer;
import org.vertx.java.core.http.ServerWebSocket;
import org.vertx.java.platform.Verticle;

public class ClientCommunicationVerticle extends Verticle {

    private HttpServer httpServer = null;

    public void start() {
        httpServer = vertx.createHttpServer()
                .websocketHandler(new ServerWebsocketHandler()).listen(9090);
    }

    class ServerWebsocketHandler implements Handler<ServerWebSocket> {
        public void handle(final ServerWebSocket ws) {
            ws.dataHandler(new Handler<Buffer>() {
                public void handle(Buffer data) {
                    container.logger().info("--->" + data.toString() + "<---");
                }
            });
        }
    }

    public void close() {
        if (httpServer != null)
            httpServer.close();
    }

}