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.RedisMessageListenerContainer;
|
import org.springframework.stereotype.Component;
|
|
import com.genersoft.iot.vmp.common.VideoManagerConstants;
|
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
|
* @author: swwheihei
|
* @date: 2020年5月6日 上午11:35:46
|
*/
|
@Component
|
public class KeepliveTimeoutListener extends RedisKeyExpirationEventMessageListener {
|
|
private Logger logger = LoggerFactory.getLogger(KeepliveTimeoutListener.class);
|
|
@Autowired
|
private EventPublisher publisher;
|
|
@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
|
* @param message
|
* @param pattern
|
*/
|
@Override
|
public void onMessage(Message message, byte[] pattern) {
|
// 获取失效的key
|
String expiredKey = message.toString();
|
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(KEEPLIVEKEY_PREFIX.length(),expiredKey.length());
|
publisher.outlineEventPublish(deviceId, VideoManagerConstants.EVENT_OUTLINE_TIMEOUT);
|
}
|
}
|
