Examples with Mqtt3SubAck com.hivemq.client.mqtt.mqtt3.message.subscribe.suback.Mqtt3SubAck used on opensource projects

Example 1 with Mqtt3SubAck

use of com.hivemq.client.mqtt.mqtt3.message.subscribe.suback.Mqtt3SubAck in project openremote by openremote.

the class AbstractMQTT_IOClient method doClientSubscription.

protected synchronized boolean doClientSubscription(String topic, Set<Consumer<MQTTMessage<S>>> consumers) {
    Consumer<MQTTMessage<S>> messageConsumer = message -> {
        if (!topicConsumerMap.containsKey(topic)) {
            return;
        }
        consumers.forEach(consumer -> {
            try {
                consumer.accept(message);
            } catch (Exception e) {
                LOG.log(Level.WARNING, "Message consumer threw an exception", e);
            }
        });
    };
    if (this.connectionStatus != ConnectionStatus.CONNECTED) {
        // Just return true and let connection logic sort out actual subscription
        return true;
    }
    try {
        Mqtt3SubAck subAck = client.subscribeWith().topicFilter(topic).callback(publish -> {
            try {
                String topicStr = publish.getTopic().toString();
                S payload = messageFromBytes(publish.getPayloadAsBytes());
                MQTTMessage<S> message = new MQTTMessage<>(topicStr, payload);
                messageConsumer.accept(message);
            } catch (Exception e) {
                LOG.log(Level.WARNING, "Failed to process published message on client '" + getClientUri() + "'", e);
            }
        }).send().get();
        LOG.fine("Subscribed to topic '" + topic + "' on client '" + getClientUri() + "'");
        return true;
    } catch (Exception e) {
        LOG.log(Level.WARNING, "Failed to subscribe to topic '" + topic + "' on client '" + getClientUri() + "'", e);
        executorService.execute(() -> onSubscribeFailed(topic));
    }
    return false;
}