@Override
public void start() throws Exception {
HttpClient client = vertx.createHttpClient().setPort(80).setHost(MTGOX_HOST_NAME);
client.connectWebsocket("/mtgox", new Handler<WebSocket>() {
@Override
public void handle(final WebSocket ws) {
container.getLogger().info("Connected to: " + MTGOX_HOST_NAME);
ws.writeBuffer(new Buffer("{\"op\":\"unsubscribe\",\"channel\":\"" + MTGOX_TICKER_CHANNEL + "\"}"));