Java Code Examples for io.netty.handler.codec.mqtt.MqttMessageType#SUBACK

The following examples show how to use io.netty.handler.codec.mqtt.MqttMessageType#SUBACK . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: MqttMessageFactory.java    From lannister with Apache License 2.0 5 votes vote down vote up 
public static MqttSubAckMessage suback(int messageId, List<Integer> grantedQoSLevels) {
	MqttFixedHeader fixedHeader = new MqttFixedHeader(MqttMessageType.SUBACK, false, MqttQoS.AT_MOST_ONCE, false,
			2 + grantedQoSLevels.size());
	MqttMessageIdVariableHeader variableHeader = MqttMessageIdVariableHeader.from(messageId);
	MqttSubAckPayload payload = new MqttSubAckPayload(grantedQoSLevels);

	return new MqttSubAckMessage(fixedHeader, variableHeader, payload);
}
Example 2
Source File: MQTTProtocolHandler.java    From activemq-artemis with Apache License 2.0 5 votes vote down vote up 
void handleSubscribe(MqttSubscribeMessage message) throws Exception {
   MQTTSubscriptionManager subscriptionManager = session.getSubscriptionManager();
   int[] qos = subscriptionManager.addSubscriptions(message.payload().topicSubscriptions());

   MqttFixedHeader header = new MqttFixedHeader(MqttMessageType.SUBACK, false, MqttQoS.AT_MOST_ONCE, false, 0);
   MqttSubAckMessage ack = new MqttSubAckMessage(header, message.variableHeader(), new MqttSubAckPayload(qos));
   sendToClient(ack);
}
Example 3
Source File: MessageUtil.java    From iot-mqtt with Apache License 2.0 4 votes vote down vote up 
public static MqttMessage getSubAckMessage(int messageId, List<Integer> qos){
    MqttFixedHeader fixedHeader = new MqttFixedHeader(MqttMessageType.SUBACK,false,MqttQoS.AT_MOST_ONCE,false,0);
    MqttMessageIdVariableHeader idVariableHeader = MqttMessageIdVariableHeader.from(messageId);
    MqttSubAckPayload subAckPayload = new MqttSubAckPayload(qos);
    return new MqttSubAckMessage(fixedHeader,idVariableHeader,subAckPayload);
}
Example 4
Source File: MqttProtocolHandler.java    From joyqueue with Apache License 2.0 4 votes vote down vote up 
public void processSubscribe(Channel client, MqttSubscribeMessage subscribeMessage) {
    List<Integer> resultCodes = new ArrayList<>();
    String clientID = NettyAttrManager.getAttrClientId(client);
    if (connectionManager.isConnected(clientID)) {
        MqttConnection connection = connectionManager.getConnection(clientID);

        if (LOG.isDebugEnabled()) {
            LOG.debug("处理subscribe数据包, clientID: {}, cleanSession: {}", clientID, connection.isCleanSession());
        }

        List<MqttTopicSubscription> topicSubscribes = subscribeMessage.payload().topicSubscriptions();
        LOG.info("Subscribe topics: {}, clientID: {}", topicSubscribes, clientID);

        try {
            if (null != topicSubscribes) {
                Set<MqttSubscription> topicFilters = subscribe(topicSubscribes, clientID, connection.getClientGroupName(), resultCodes);
                MqttSession session = sessionManager.getSession(clientID);
                if (session != null) {
                    for (MqttSubscription subscription : topicFilters) {
                        session.addSubscription(subscription);
                    }
                }
            } else {
                // The payload of a SUBSCRIBE packet MUST contain at least one Topic Filter / QoS pair. A SUBSCRIBE packet with no payload is a protocol violation
                // it MUST close the Network Connection on which it received that Control Packet which caused the protocol violation
                consumerManager.stopConsume(clientID);
                sessionManager.removeSession(clientID);
                connection.getChannel().close().addListener(CLOSE_ON_FAILURE);
                connectionManager.removeConnection(connection);
                client.close().addListener(CLOSE_ON_FAILURE);
            }
        } catch (Exception e) {
            LOG.error("subscribe is error!");
            if (resultCodes.size() < topicSubscribes.size()) {
                int minus = topicSubscribes.size() - resultCodes.size();
                for (; minus > 0; minus--) {
                    resultCodes.add(MqttQoS.FAILURE.value());
                }
            }
        }
    }

    MqttFixedHeader mqttFixedHeader = new MqttFixedHeader(MqttMessageType.SUBACK, false, MqttQoS.AT_MOST_ONCE, false, 0);
    MqttSubAckMessage subAckMessage = (MqttSubAckMessage) MqttMessageFactory.newMessage(
            mqttFixedHeader,
            MqttMessageIdVariableHeader.from(subscribeMessage.variableHeader().messageId()),
            new MqttSubAckPayload(resultCodes));
    LOG.info("SUBSCRIBE successful, subscribe result: {}", resultCodes);
    client.writeAndFlush(subAckMessage);
}
Example 5
Source File: MqttEndpointImpl.java    From vertx-mqtt with Apache License 2.0 3 votes vote down vote up 
public MqttEndpointImpl subscribeAcknowledge(int subscribeMessageId, List<MqttQoS> grantedQoSLevels) {

    MqttFixedHeader fixedHeader =
      new MqttFixedHeader(MqttMessageType.SUBACK, false, MqttQoS.AT_MOST_ONCE, false, 0);
    MqttMessageIdVariableHeader variableHeader =
      MqttMessageIdVariableHeader.from(subscribeMessageId);

    MqttSubAckPayload payload = new MqttSubAckPayload(grantedQoSLevels.stream().mapToInt(MqttQoS::value).toArray());

    io.netty.handler.codec.mqtt.MqttMessage suback = MqttMessageFactory.newMessage(fixedHeader, variableHeader, payload);

    this.write(suback);

    return this;
  }