com.feingto.iot.server.handler.mqtt.PubackHandler Maven / Gradle / Ivy

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package com.feingto.iot.server.handler.mqtt;

import com.feingto.iot.common.Constants;
import com.feingto.iot.server.cache.MessageCache;
import com.feingto.iot.server.handler.BaseMessageHandler;
import io.netty.channel.Channel;
import io.netty.handler.codec.mqtt.MqttMessage;
import io.netty.handler.codec.mqtt.MqttMessageIdVariableHeader;
import io.netty.handler.codec.mqtt.MqttMessageType;

/**
 * QoS level = 1的PUBLISH消息之后对发送者的响应
 *
 * @author longfei
 */
public class PubackHandler extends BaseMessageHandler {
    public PubackHandler() {
        super(MqttMessageType.PUBACK);
    }

    @Override
    public void handle(Channel channel, Object object) {
        MqttMessage msg = (MqttMessage) object;
        MqttMessageIdVariableHeader variableHeader = (MqttMessageIdVariableHeader) msg.variableHeader();
        // 删除持久化消息
        MessageCache.getInstance(igniteMessage)
                .remove(channel.attr(Constants.KEY_CLIENT_ID).get(), variableHeader.messageId());
    }
}