package com.genersoft.iot.vmp.media.zlm.event;
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import com.alibaba.fastjson.JSONObject;
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import com.genersoft.iot.vmp.common.VideoManagerConstants;
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import com.genersoft.iot.vmp.conf.RedisKeyExpirationEventMessageListener;
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import com.genersoft.iot.vmp.conf.UserSetting;
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import com.genersoft.iot.vmp.gb28181.event.EventPublisher;
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import com.genersoft.iot.vmp.media.zlm.ZLMRESTfulUtils;
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import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
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import com.genersoft.iot.vmp.service.IMediaServerService;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.redis.connection.Message;
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import org.springframework.data.redis.listener.RedisMessageListenerContainer;
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import org.springframework.stereotype.Component;
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/**
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* @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
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* @author: swwheihei
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* @date: 2020年5月6日 上午11:35:46
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*/
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@Component
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public class ZLMKeepliveTimeoutListener extends RedisKeyExpirationEventMessageListener {
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private Logger logger = LoggerFactory.getLogger(ZLMKeepliveTimeoutListener.class);
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@Autowired
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private EventPublisher publisher;
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@Autowired
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private ZLMRESTfulUtils zlmresTfulUtils;
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@Autowired
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private UserSetting userSetting;
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@Autowired
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private IMediaServerService mediaServerService;
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public ZLMKeepliveTimeoutListener(RedisMessageListenerContainer listenerContainer, UserSetting userSetting) {
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super(listenerContainer, userSetting);
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}
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/**
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* 监听失效的key，key格式为keeplive_deviceId
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* @param message
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* @param pattern
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*/
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@Override
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public void onMessage(Message message, byte[] pattern) {
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// 获取失效的key
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String expiredKey = message.toString();
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String KEEPLIVEKEY_PREFIX = VideoManagerConstants.MEDIA_SERVER_KEEPALIVE_PREFIX + userSetting.getServerId() + "_";
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if(!expiredKey.startsWith(KEEPLIVEKEY_PREFIX)){
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return;
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}
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String mediaServerId = expiredKey.substring(KEEPLIVEKEY_PREFIX.length(),expiredKey.length());
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logger.info("[zlm心跳到期]：" + mediaServerId);
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// 发起http请求验证zlm是否确实无法连接，如果确实无法连接则发送离线事件，否则不作处理
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MediaServerItem mediaServerItem = mediaServerService.getOne(mediaServerId);
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JSONObject mediaServerConfig = zlmresTfulUtils.getMediaServerConfig(mediaServerItem);
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if (mediaServerConfig == null) {
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publisher.zlmOfflineEventPublish(mediaServerId);
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}else {
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logger.info("[zlm心跳到期]：{}验证后zlm仍在线，恢复心跳信息", mediaServerId);
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// 添加zlm信息
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mediaServerService.updateMediaServerKeepalive(mediaServerId, mediaServerConfig);
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}
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}
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}
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