使用阿里代码规范。规范代码写法

648540858

2022-05-06 5d901b5e3f033e8b04e53420d68626cbd87431c8

 src/main/java/com/genersoft/iot/vmp/gb28181/event/offline/KeepliveTimeoutListener.java

@@ -1,10 +1,11 @@
package com.genersoft.iot.vmp.gb28181.event.offline;



import com.genersoft.iot.vmp.conf.RedisKeyExpirationEventMessageListener;

import com.genersoft.iot.vmp.conf.UserSetting;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.data.redis.connection.Message;

import org.springframework.data.redis.listener.KeyExpirationEventMessageListener;

import org.springframework.data.redis.listener.RedisMessageListenerContainer;

import org.springframework.stereotype.Component;



@@ -12,21 +13,34 @@
import com.genersoft.iot.vmp.gb28181.event.EventPublisher;



/**    

 * @Description:设备心跳超时监听,借助redis过期特性，进行监听，监听到说明设备心跳超时，发送离线事件

 * @description:设备心跳超时监听,借助redis过期特性，进行监听，监听到说明设备心跳超时，发送离线事件

 * @author: swwheihei

 * @date:   2020年5月6日 上午11:35:46     

 */

@Component

public class KeepliveTimeoutListener extends KeyExpirationEventMessageListener {

public class KeepliveTimeoutListener extends RedisKeyExpirationEventMessageListener {



    private Logger logger = LoggerFactory.getLogger(KeepliveTimeoutListener.class);



   @Autowired

   private EventPublisher publisher;



   public KeepliveTimeoutListener(RedisMessageListenerContainer listenerContainer) {

      super(listenerContainer);

   }

   @Autowired

   private UserSetting userSetting;



    public KeepliveTimeoutListener(RedisMessageListenerContainer listenerContainer, UserSetting userSetting) {

        super(listenerContainer, userSetting);

    }



    @Override

    public void init() {

        if (!userSetting.getRedisConfig()) {

            // 配置springboot默认Config为空，即不让应用去修改redis的默认配置，因为Redis服务出于安全会禁用CONFIG命令给远程用户使用

            setKeyspaceNotificationsConfigParameter("");

        }

        super.init();

    }





   /**

     * 监听失效的key，key格式为keeplive_deviceId

@@ -37,12 +51,13 @@
    public void onMessage(Message message, byte[] pattern) {

        //  获取失效的key

        String expiredKey = message.toString();

        if(!expiredKey.startsWith(VideoManagerConstants.KEEPLIVEKEY_PREFIX)){

           logger.info("收到redis过期监听，但开头不是"+VideoManagerConstants.KEEPLIVEKEY_PREFIX+"，忽略");

        String KEEPLIVEKEY_PREFIX = VideoManagerConstants.KEEPLIVEKEY_PREFIX + userSetting.getServerId() + "_";

        if(!expiredKey.startsWith(KEEPLIVEKEY_PREFIX)){

           logger.debug("收到redis过期监听，但开头不是"+KEEPLIVEKEY_PREFIX+"，忽略");

           return;

        }

        

        String deviceId = expiredKey.substring(VideoManagerConstants.KEEPLIVEKEY_PREFIX.length(),expiredKey.length());

        String deviceId = expiredKey.substring(KEEPLIVEKEY_PREFIX.length(),expiredKey.length());

        publisher.outlineEventPublish(deviceId, VideoManagerConstants.EVENT_OUTLINE_TIMEOUT);

    }

}