Examples with DefaultPromise io.netty.util.concurrent.DefaultPromise used on opensource projects

Example 16 with DefaultPromise

use of io.netty.util.concurrent.DefaultPromise in project thingsboard by thingsboard.

the class MqttClientImpl method connect.

private Future<MqttConnectResult> connect(String host, int port, boolean reconnect) {
    if (this.eventLoop == null) {
        this.eventLoop = new NioEventLoopGroup();
    }
    this.host = host;
    this.port = port;
    Promise<MqttConnectResult> connectFuture = new DefaultPromise<>(this.eventLoop.next());
    Bootstrap bootstrap = new Bootstrap();
    bootstrap.group(this.eventLoop);
    bootstrap.channel(clientConfig.getChannelClass());
    bootstrap.remoteAddress(host, port);
    bootstrap.handler(new MqttChannelInitializer(connectFuture, host, port, clientConfig.getSslContext()));
    ChannelFuture future = bootstrap.connect();
    future.addListener((ChannelFutureListener) f -> {
        if (f.isSuccess()) {
            MqttClientImpl.this.channel = f.channel();
            MqttClientImpl.this.channel.closeFuture().addListener((ChannelFutureListener) channelFuture -> {
                if (isConnected()) {
                    return;
                }
                ChannelClosedException e = new ChannelClosedException("Channel is closed!");
                if (callback != null) {
                    callback.connectionLost(e);
                }
                pendingSubscriptions.forEach((id, mqttPendingSubscription) -> mqttPendingSubscription.onChannelClosed());
                pendingSubscriptions.clear();
                serverSubscriptions.clear();
                subscriptions.clear();
                pendingServerUnsubscribes.forEach((id, mqttPendingServerUnsubscribes) -> mqttPendingServerUnsubscribes.onChannelClosed());
                pendingServerUnsubscribes.clear();
                qos2PendingIncomingPublishes.clear();
                pendingPublishes.forEach((id, mqttPendingPublish) -> mqttPendingPublish.onChannelClosed());
                pendingPublishes.clear();
                pendingSubscribeTopics.clear();
                handlerToSubscribtion.clear();
                scheduleConnectIfRequired(host, port, true);
            });
        } else {
            scheduleConnectIfRequired(host, port, reconnect);
        }
    });
    return connectFuture;
}