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package com.feingto.iot.client.service;

import com.feingto.iot.common.model.mqtt.MqttConnectOptions;
import io.netty.channel.Channel;
import io.netty.handler.codec.mqtt.MqttConnAckMessage;
import io.netty.handler.codec.mqtt.MqttMessage;
import io.netty.handler.codec.mqtt.MqttSubAckMessage;

/**
 * 消息接口
 *
 * @author longfei
 */
public interface IMqttMessage {
    /**
     * 连接
     */
    void connect(Channel channel, MqttConnectOptions options);

    /**
     * 连接响应
     */
    void connack(MqttConnAckMessage msg);

    /**
     * 推送消息
     */
    void publish(Channel channel, MqttMessage msg);

    /**
     * QoS level = 1的消息响应
     */
    void puback(Channel channel, MqttMessage msg);

    /**
     * Qos level = 2的协议流的第二个消息，确认已经收到
     */
    void pubrec(Channel channel, MqttMessage msg);

    /**
     * Qos level = 2的协议流的第三个消息
     */
    void pubrel(Channel channel, MqttMessage msg);

    /**
     * Qos level = 2的协议流的第三个消息响应
     */
    void pubcomp(Channel channel, MqttMessage msg);

    /**
     * 订阅响应
     */
    void suback(Channel channel, MqttSubAckMessage msg);

    /**
     * 取消订阅响应
     */
    void unsubBack(Channel channel, MqttMessage msg);

    /**
     * PING请求
     */
    void pingreq(Channel channel);

    /**
     * 断开连接消息
     */
    void disconnect(Channel channel);

    /**
     * 异常处理
     */
    void exceptionCaught(Throwable cause);
}