648540858
2022-02-24 a42dda2bd3cc1cf8c20cc61e7ad9211eadecbaf3
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package com.genersoft.iot.vmp.gb28181.event.offline;
 
import com.genersoft.iot.vmp.conf.UserSetup;
import com.genersoft.iot.vmp.gb28181.bean.DeviceChannel;
import com.genersoft.iot.vmp.gb28181.event.EventPublisher;
import com.genersoft.iot.vmp.gb28181.event.subscribe.catalog.CatalogEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.context.annotation.DependsOn;
import org.springframework.context.annotation.Lazy;
import org.springframework.stereotype.Component;
 
import com.genersoft.iot.vmp.common.VideoManagerConstants;
import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
import com.genersoft.iot.vmp.utils.redis.RedisUtil;
 
import java.util.List;
 
/**
 * @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:
 *               1、设备主动注销,发送注销指令,{@link com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.RegisterRequestProcessor}
 *               2、设备未知原因离线,心跳超时,{@link com.genersoft.iot.vmp.gb28181.event.offline.OfflineEventListener}
 * @author: swwheihei
 * @date: 2020年5月6日 下午1:51:23
 */
@Component
public class OfflineEventListener implements ApplicationListener<OfflineEvent> {
 
    private final static Logger logger = LoggerFactory.getLogger(OfflineEventListener.class);
    
    @Autowired
    private IVideoManagerStorager storager;
    
    @Autowired
    private RedisUtil redis;
 
    @Autowired
    private UserSetup userSetup;
 
    @Autowired
    private EventPublisher eventPublisher;
 
    @Override
    public void onApplicationEvent(OfflineEvent event) {
        
        if (logger.isDebugEnabled()) {
            logger.debug("设备离线事件触发,deviceId:" + event.getDeviceId() + ",from:" + event.getFrom());
        }
 
        String key = VideoManagerConstants.KEEPLIVEKEY_PREFIX + userSetup.getServerId() + "_" + event.getDeviceId();
 
        switch (event.getFrom()) {
            // 心跳超时触发的离线事件,说明redis中已删除,无需处理
            case VideoManagerConstants.EVENT_OUTLINE_TIMEOUT:
                break;
            // 设备主动注销触发的离线事件,需要删除redis中的超时监听
            case VideoManagerConstants.EVENT_OUTLINE_UNREGISTER:
                redis.del(key);
                break;
            default:
                boolean exist = redis.hasKey(key);
                if (exist) {
                    redis.del(key);
                }
        }
 
        List<DeviceChannel> deviceChannelList = storager.queryOnlineChannelsByDeviceId(event.getDeviceId());
        eventPublisher.catalogEventPublish(null, deviceChannelList, CatalogEvent.OFF);
        // 处理离线监听
        storager.outline(event.getDeviceId());
 
        // TODO 离线取消订阅
 
    }
}