package com.genersoft.iot.vmp.gb28181.event.offline;
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import com.genersoft.iot.vmp.conf.UserSetup;
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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.context.ApplicationListener;
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import org.springframework.stereotype.Component;
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import com.genersoft.iot.vmp.common.VideoManagerConstants;
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import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
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import com.genersoft.iot.vmp.utils.redis.RedisUtil;
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/**
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* @description: 离线事件监听器，监听到离线后，修改设备离在线状态。 设备离线有两个来源：
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* 1、设备主动注销，发送注销指令，{@link com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.RegisterRequestProcessor}
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* 2、设备未知原因离线，心跳超时,{@link com.genersoft.iot.vmp.gb28181.event.offline.OfflineEventListener}
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* @author: swwheihei
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* @date: 2020年5月6日 下午1:51:23
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*/
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@Component
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public class OfflineEventListener implements ApplicationListener<OfflineEvent> {
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private final static Logger logger = LoggerFactory.getLogger(OfflineEventListener.class);
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@Autowired
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private IVideoManagerStorager storager;
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@Autowired
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private RedisUtil redis;
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@Autowired
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private UserSetup userSetup;
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@Override
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public void onApplicationEvent(OfflineEvent event) {
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if (logger.isDebugEnabled()) {
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logger.debug("设备离线事件触发，deviceId：" + event.getDeviceId() + ",from:" + event.getFrom());
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}
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String key = VideoManagerConstants.KEEPLIVEKEY_PREFIX + userSetup.getServerId() + "_" + event.getDeviceId();
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switch (event.getFrom()) {
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// 心跳超时触发的离线事件，说明redis中已删除，无需处理
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case VideoManagerConstants.EVENT_OUTLINE_TIMEOUT:
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break;
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// 设备主动注销触发的离线事件，需要删除redis中的超时监听
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case VideoManagerConstants.EVENT_OUTLINE_UNREGISTER:
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redis.del(key);
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break;
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default:
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boolean exist = redis.hasKey(key);
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if (exist) {
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redis.del(key);
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}
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}
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// 处理离线监听
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storager.outline(event.getDeviceId());
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// TODO 离线取消订阅
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}
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}
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