未为共享订阅Paho Java客户端库调用回调

Question

共享订阅Paho Java客户端库未调用回调

需要帮助

https://yogin16.github.io/2017/07/15/mqtt-shared-sub-with-paho/

https://github.com/yogin16/paho-shared-sub-example/blob/master/example/src/src/SharedSubCallbackRouter.java

https://github.com/eclipse/paho.mqtt.java/issues/367

公共类MqttTopicListener实现MqttCallback，IMqttMessageListener {

private static final Logger logger = LogManager.getLogger(MqttTopicListener.class);
private static final ExecutorService executor;

public MqttTopicListener(ApplicationContext applicationContext, String profile){
}


@Override
public void connectionLost(Throwable cause) {
    logger.warn("MQTT: connectionLost :"+cause,cause);


    try {
        MqttListenerConnectionFactory.INSTANCE.connect();
        Map<String, Integer> mqttQosTopicMap = CommunicationFactory.INSTANCE.getMqttQosTopicMap();
        mqttQosTopicMap.forEach((topic, qos) -> {
            try {
                MqttListenerConnectionFactory.INSTANCE.subscribe(topic,qos);
            } catch (MqttException e) {
                logger.error("connectionLost reconnect error :"+e,e);
            }
        });
    } catch (MqttException e) {
        logger.error(e,e);
    }
}

@Override
public void messageArrived(String topic, MqttMessage message) throws Exception {
    logger.error("[MQTT] message"+new String(message.getPayload()));
    if(message.isDuplicate()) {
        logger.warn("[MQTT] Duplicate Message Payload :"+topic);
        return;
    }
    try {
        AbstractTopicHandler abstractTopicHandler = (AbstractTopicHandler)
                CommunicationFactory.INSTANCE.getInstanceOfHandlerByTopic(topic, message);
        executor.submit(abstractTopicHandler);
    }catch (Exception iu){
        logger.error("Not able to launch Handler class"+iu,iu);
    }
}

@Override
public void deliveryComplete(IMqttDeliveryToken token) {
    try {
        logger.info("MQTT: deliveryComplete for token :"+token.getMessage()+"  "+token.getMessageId());
    } catch (MqttException e) {
        logger.error(e,e);
    }
}

}

共享订阅是一种将消息分发给共享订阅主题的一组订阅者的机制，以便每个消息仅由一个订阅者接收。

通过MQTT命令行可以正常工作 mosquitto_sub -h ***** -p 1883 -q 1 -t“ $ share / v1 / server / devices /＃” -i“ terminal1”

这是一条测试消息7