添加心跳到期时验证zlm是否真的离线。

648540858

2021-12-20 22efd0f56c20e1aedb18fa7b9bcdc48007fcc954

 src/main/java/com/genersoft/iot/vmp/storager/impl/VideoManagerStoragerImpl.java

@@ -1,35 +1,58 @@
package com.genersoft.iot.vmp.storager.impl;

import java.util.*;

import com.genersoft.iot.vmp.gb28181.bean.DeviceChannel;
import com.genersoft.iot.vmp.gb28181.bean.ParentPlatform;
import com.genersoft.iot.vmp.gb28181.bean.ParentPlatformCatch;
import com.genersoft.iot.vmp.gb28181.bean.*;
import com.genersoft.iot.vmp.gb28181.session.VideoStreamSessionManager;
import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
import com.genersoft.iot.vmp.media.zlm.dto.StreamProxyItem;
import com.genersoft.iot.vmp.media.zlm.dto.StreamPushItem;
import com.genersoft.iot.vmp.service.IGbStreamService;
import com.genersoft.iot.vmp.storager.IRedisCatchStorage;
import com.genersoft.iot.vmp.storager.dao.DeviceChannelMapper;
import com.genersoft.iot.vmp.storager.dao.DeviceMapper;
import com.genersoft.iot.vmp.storager.dao.ParentPlatformMapper;
import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
import com.genersoft.iot.vmp.storager.dao.*;
import com.genersoft.iot.vmp.vmanager.gb28181.platform.bean.ChannelReduce;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.stereotype.Component;
import org.springframework.transaction.TransactionDefinition;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**    
 * @Description:视频设备数据存储-jdbc实现
 * @description:视频设备数据存储-jdbc实现
 * @author: swwheihei
 * @date:   2020年5月6日 下午2:31:42
 */
@SuppressWarnings("rawtypes")
@Component
public class VideoManagerStoragerImpl implements IVideoManagerStorager {

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

   @Autowired
   DataSourceTransactionManager dataSourceTransactionManager;

   @Autowired
   TransactionDefinition transactionDefinition;

   @Autowired
    private DeviceMapper deviceMapper;

   @Autowired
    private DeviceChannelMapper deviceChannelMapper;
   private DeviceChannelMapper deviceChannelMapper;

   @Autowired
   private DeviceMobilePositionMapper deviceMobilePositionMapper;

   @Autowired
    private ParentPlatformMapper platformMapper;
@@ -37,7 +60,35 @@
   @Autowired
    private IRedisCatchStorage redisCatchStorage;

   @Autowired
    private PlatformChannelMapper platformChannelMapper;

   @Autowired
    private StreamProxyMapper streamProxyMapper;

   @Autowired
    private StreamPushMapper streamPushMapper;

   @Autowired
    private GbStreamMapper gbStreamMapper;
;

   @Autowired
    private PlatformGbStreamMapper platformGbStreamMapper;

   @Autowired
    private IGbStreamService gbStreamService;

   @Autowired
    private ParentPlatformMapper parentPlatformMapper;

   @Autowired
    private VideoStreamSessionManager streamSession;

   @Autowired
    private MediaServerMapper mediaServerMapper;

   private SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");


   /**
@@ -59,6 +110,7 @@
    */
   @Override
   public synchronized boolean create(Device device) {
      redisCatchStorage.updateDevice(device);
      return deviceMapper.add(device) > 0;
   }

@@ -72,12 +124,18 @@
    */
   @Override
   public synchronized boolean updateDevice(Device device) {
      String now = this.format.format(System.currentTimeMillis());
      device.setUpdateTime(now);
      Device deviceByDeviceId = deviceMapper.getDeviceByDeviceId(device.getDeviceId());
      if (deviceByDeviceId == null) {
         device.setCreateTime(now);
         redisCatchStorage.updateDevice(device);
         return deviceMapper.add(device) > 0;
      }else {
         redisCatchStorage.updateDevice(device);
         return deviceMapper.update(device) > 0;
      }


   }

@@ -85,12 +143,100 @@
   public synchronized void updateChannel(String deviceId, DeviceChannel channel) {
      String channelId = channel.getChannelId();
      channel.setDeviceId(deviceId);
      channel.setStreamId(streamSession.getStreamId(deviceId, channel.getChannelId()));
      String now = this.format.format(System.currentTimeMillis());
      channel.setUpdateTime(now);
      DeviceChannel deviceChannel = deviceChannelMapper.queryChannel(deviceId, channelId);
      if (deviceChannel == null) {
         channel.setCreateTime(now);
         deviceChannelMapper.add(channel);
      }else {
         deviceChannelMapper.update(channel);
      }
   }

   @Override
   public void updateChannels(String deviceId, List<DeviceChannel> channels) {
      List<DeviceChannel> addChannels = new ArrayList<>();
      List<DeviceChannel> updateChannels = new ArrayList<>();
      HashMap<String, DeviceChannel> channelsInStore = new HashMap<>();
      if (channels != null && channels.size() > 0) {
         List<DeviceChannel> channelList = deviceChannelMapper.queryChannelsByDeviceId(deviceId);
         if (channelList.size() == 0) {
            for (DeviceChannel channel : channels) {
               channel.setDeviceId(deviceId);
               channel.setStreamId(streamSession.getStreamId(deviceId, channel.getChannelId()));
               String now = this.format.format(System.currentTimeMillis());
               channel.setUpdateTime(now);
               channel.setCreateTime(now);
               addChannels.add(channel);
            }
         }else {
            for (DeviceChannel deviceChannel : channelList) {
               channelsInStore.put(deviceChannel.getChannelId(), deviceChannel);
            }
            for (DeviceChannel channel : channels) {
               String channelId = channel.getChannelId();
               channel.setDeviceId(deviceId);
               channel.setStreamId(streamSession.getStreamId(deviceId, channel.getChannelId()));
               String now = this.format.format(System.currentTimeMillis());
               channel.setUpdateTime(now);
               if (channelsInStore.get(channel.getChannelId()) != null) {
                  updateChannels.add(channel);
               }else {
                  addChannels.add(channel);
                  channel.setCreateTime(now);
               }
            }
         }
         int limitCount = 300;
         if (addChannels.size() > 0) {
            if (addChannels.size() > limitCount) {
               for (int i = 0; i < addChannels.size(); i += limitCount) {
                  int toIndex = i + limitCount;
                  if (i + limitCount > addChannels.size()) {
                     toIndex = addChannels.size();
                  }
                  deviceChannelMapper.batchAdd(addChannels.subList(i, toIndex));
               }
            }else {
               deviceChannelMapper.batchAdd(addChannels);
            }
         }
         if (updateChannels.size() > 0) {
            if (updateChannels.size() > limitCount) {
               for (int i = 0; i < updateChannels.size(); i += limitCount) {
                  int toIndex = i + limitCount;
                  if (i + limitCount > updateChannels.size()) {
                     toIndex = updateChannels.size();
                  }
                  deviceChannelMapper.batchAdd(updateChannels.subList(i, toIndex));
               }
            }else {
               deviceChannelMapper.batchUpdate(updateChannels);
            }
         }
      }
   }

   @Override
   public void deviceChannelOnline(String deviceId, String channelId) {
      deviceChannelMapper.online(deviceId, channelId);
   }

   @Override
   public void deviceChannelOffline(String deviceId, String channelId) {
      deviceChannelMapper.offline(deviceId, channelId);
   }

   @Override
   public void startPlay(String deviceId, String channelId, String streamId) {
      deviceChannelMapper.startPlay(deviceId, channelId, streamId);
   }

   @Override
   public void stopPlay(String deviceId, String channelId) {
      deviceChannelMapper.stopPlay(deviceId, channelId);
   }

   /**
@@ -108,21 +254,19 @@
   public PageInfo queryChannelsByDeviceId(String deviceId, String query, Boolean hasSubChannel, Boolean online, int page, int count) {
      // 获取到所有正在播放的流
      PageHelper.startPage(page, count);
      List<DeviceChannel> all = deviceChannelMapper.queryChannelsByDeviceId(deviceId, null, query, hasSubChannel, online);
      List<DeviceChannel> all = deviceChannelMapper.queryChannels(deviceId, null, query, hasSubChannel, online);
      return new PageInfo<>(all);
   }



   @Override
   public List<DeviceChannel> queryChannelsByDeviceId(String deviceId) {
      return deviceChannelMapper.queryChannelsByDeviceId(deviceId, null,null, null, null);
      return deviceChannelMapper.queryChannels(deviceId, null,null, null, null);
   }

   @Override
   public PageInfo<DeviceChannel> querySubChannels(String deviceId, String parentChannelId, String query, Boolean hasSubChannel, String online, int page, int count) {
      PageHelper.startPage(page, count);
      List<DeviceChannel> all = deviceChannelMapper.queryChannelsByDeviceId(deviceId, parentChannelId, null, null, null);
      List<DeviceChannel> all = deviceChannelMapper.queryChannels(deviceId, parentChannelId, null, null, null);
      return new PageInfo<>(all);
   }

@@ -131,6 +275,11 @@
      return deviceChannelMapper.queryChannel(deviceId, channelId);
   }


   @Override
   public int delChannel(String deviceId, String channelId) {
      return deviceChannelMapper.del(deviceId, channelId);
   }

   /**
    * 获取多个设备
@@ -166,9 +315,22 @@
    */
   @Override
   public boolean delete(String deviceId) {
      int result = deviceMapper.del(deviceId);

      return result > 0;
      TransactionStatus transactionStatus = dataSourceTransactionManager.getTransaction(transactionDefinition);
      boolean result = false;
      try {
         if (platformChannelMapper.delChannelForDeviceId(deviceId) <0  // 删除与国标平台的关联
               || deviceChannelMapper.cleanChannelsByDeviceId(deviceId) < 0 // 删除他的通道
               || deviceMapper.del(deviceId) < 0 // 移除设备信息
         ) {
            //事务回滚
            dataSourceTransactionManager.rollback(transactionStatus);
         }
         result = true;
         dataSourceTransactionManager.commit(transactionStatus);     //手动提交
      }catch (Exception e) {
         dataSourceTransactionManager.rollback(transactionStatus);
      }
      return result;
   }

   /**
@@ -180,11 +342,12 @@
   @Override
   public synchronized boolean online(String deviceId) {
      Device device = deviceMapper.getDeviceByDeviceId(deviceId);
      device.setOnline(1);
      System.out.println("更新设备在线");
      if (device == null) {
         return false;
      }
      device.setOnline(1);
      logger.info("更新设备在线: " + deviceId);
      redisCatchStorage.updateDevice(device);
      return deviceMapper.update(device) > 0;
   }

@@ -196,16 +359,53 @@
    */
   @Override
   public synchronized boolean outline(String deviceId) {
      logger.info("更新设备离线: " + deviceId);
      Device device = deviceMapper.getDeviceByDeviceId(deviceId);
      if (device == null) return false;
      device.setOnline(0);
      System.out.println("更新设备离线");
      redisCatchStorage.updateDevice(device);
      return deviceMapper.update(device) > 0;
   }

   /**
    * 更新所有设备离线
    *
    * @return true：更新成功  false：更新失败
    */
   @Override
   public synchronized boolean outlineForAll() {
      logger.info("更新所有设备离线");
      int result = deviceMapper.outlineForAll();
      return result > 0;
   }

   /**
    * 清空通道
    * @param deviceId
    */
   @Override
   public void cleanChannelsForDevice(String deviceId) {
      int result = deviceChannelMapper.cleanChannelsByDeviceId(deviceId);
      deviceChannelMapper.cleanChannelsByDeviceId(deviceId);
   }

   /**
    * 添加Mobile Position设备移动位置
    * @param mobilePosition
    */
   @Override
   public synchronized boolean insertMobilePosition(MobilePosition mobilePosition) {
      return deviceMobilePositionMapper.insertNewPosition(mobilePosition) > 0;
   }

   /**
    * 查询移动位置轨迹
    * @param deviceId
    * @param startTime
    * @param endTime
    */
   @Override
   public synchronized List<MobilePosition> queryMobilePositions(String deviceId, String startTime, String endTime) {
      return deviceMobilePositionMapper.queryPositionByDeviceIdAndTime(deviceId, startTime, endTime);
   }

   @Override
@@ -217,27 +417,45 @@
   @Override
   public boolean updateParentPlatform(ParentPlatform parentPlatform) {
      int result = 0;
      ParentPlatformCatch parentPlatformCatch = redisCatchStorage.queryPlatformCatchInfo(parentPlatform.getDeviceGBId());
      if ( platformMapper.getParentPlatById(parentPlatform.getDeviceGBId()) == null) {
      ParentPlatformCatch parentPlatformCatch = redisCatchStorage.queryPlatformCatchInfo(parentPlatform.getServerGBId()); // .getDeviceGBId());
      if (parentPlatform.getId() == null ) {
         result = platformMapper.addParentPlatform(parentPlatform);

         if (parentPlatformCatch == null) {
            parentPlatformCatch = new ParentPlatformCatch();
            parentPlatformCatch.setParentPlatform(parentPlatform);
            parentPlatformCatch.setId(parentPlatform.getDeviceGBId());
            parentPlatformCatch.setId(parentPlatform.getServerGBId());
         }
      }else {
         if (parentPlatformCatch == null) { // serverGBId 已变化
            ParentPlatform parentPlatById = platformMapper.getParentPlatById(parentPlatform.getId());
            // 使用旧的查出缓存ID
            parentPlatformCatch = redisCatchStorage.queryPlatformCatchInfo(parentPlatById.getServerGBId());
            parentPlatformCatch.setId(parentPlatform.getServerGBId());
            redisCatchStorage.delPlatformCatchInfo(parentPlatById.getServerGBId());
         }
         result = platformMapper.updateParentPlatform(parentPlatform);
      }
      // 更新缓存
      parentPlatformCatch.setParentPlatform(parentPlatform);
      redisCatchStorage.updatePlatformCatchInfo(parentPlatformCatch);
      // 共享所有视频流，需要将现有视频流添加到此平台
      List<GbStream> gbStreams = gbStreamMapper.selectAll();
      if (gbStreams.size() > 0) {
         if (parentPlatform.isShareAllLiveStream()) {
            gbStreamService.addPlatformInfo(gbStreams, parentPlatform.getServerGBId());
         }else {
            gbStreamService.delPlatformInfo(gbStreams);
         }
      }
      return result > 0;
   }

   @Transactional
   @Override
   public boolean deleteParentPlatform(ParentPlatform parentPlatform) {
      int result = platformMapper.delParentPlatform(parentPlatform);
      // 删除关联的通道
      platformChannelMapper.cleanChannelForGB(parentPlatform.getServerGBId());
      return result > 0;
   }

@@ -249,8 +467,8 @@
   }

   @Override
   public ParentPlatform queryParentPlatById(String platformGbId) {
      return platformMapper.getParentPlatById(platformGbId);
   public ParentPlatform queryParentPlatByServerGBId(String platformGbId) {
      return platformMapper.getParentPlatByServerGBId(platformGbId);
   }

   @Override
@@ -262,4 +480,290 @@
   public void outlineForAllParentPlatform() {
      platformMapper.outlineForAllParentPlatform();
   }


   @Override
   public PageInfo<ChannelReduce> queryAllChannelList(int page, int count, String query, Boolean online,
                                          Boolean channelType, String platformId, Boolean inPlatform) {
      PageHelper.startPage(page, count);
      List<ChannelReduce> all = deviceChannelMapper.queryChannelListInAll(query, online, channelType, platformId, inPlatform);
      return new PageInfo<>(all);
   }

   @Override
   public List<ChannelReduce> queryChannelListInParentPlatform(String platformId) {

      return deviceChannelMapper.queryChannelListInAll(null, null, null, platformId, true);
   }

   @Override
   public int updateChannelForGB(String platformId, List<ChannelReduce> channelReduces) {

      Map<String, ChannelReduce> deviceAndChannels = new HashMap<>();
      for (ChannelReduce channelReduce : channelReduces) {
         deviceAndChannels.put(channelReduce.getDeviceId() + "_" + channelReduce.getChannelId(), channelReduce);
      }
      List<String> deviceAndChannelList = new ArrayList<>(deviceAndChannels.keySet());
      // 查询当前已经存在的
      List<String> relatedPlatformchannels = platformChannelMapper.findChannelRelatedPlatform(platformId, deviceAndChannelList);
      if (relatedPlatformchannels != null) {
         deviceAndChannelList.removeAll(relatedPlatformchannels);
      }
      for (String relatedPlatformchannel : relatedPlatformchannels) {
         deviceAndChannels.remove(relatedPlatformchannel);
      }
      List<ChannelReduce> channelReducesToAdd = new ArrayList<>(deviceAndChannels.values());
      // 对剩下的数据进行存储
      int result = 0;
      if (channelReducesToAdd.size() > 0) {
         result = platformChannelMapper.addChannels(platformId, channelReducesToAdd);
      }

      return result;
   }


   @Override
   public int delChannelForGB(String platformId, List<ChannelReduce> channelReduces) {

      int result = platformChannelMapper.delChannelForGB(platformId, channelReduces);

      return result;
   }

   @Override
   public DeviceChannel queryChannelInParentPlatform(String platformId, String channelId) {
      DeviceChannel channel = platformChannelMapper.queryChannelInParentPlatform(platformId, channelId);
      return channel;
   }

   @Override
   public Device queryVideoDeviceByPlatformIdAndChannelId(String platformId, String channelId) {
      Device device = platformChannelMapper.queryVideoDeviceByPlatformIdAndChannelId(platformId, channelId);
      return device;
   }

   /**
    * 查询最新移动位置
    * @param deviceId
    */
   @Override
   public MobilePosition queryLatestPosition(String deviceId) {
      return deviceMobilePositionMapper.queryLatestPositionByDevice(deviceId);
   }

   /**
    * 删除指定设备的所有移动位置
    * @param deviceId
    */
   public int clearMobilePositionsByDeviceId(String deviceId) {
      return deviceMobilePositionMapper.clearMobilePositionsByDeviceId(deviceId);
   }

   /**
    * 新增代理流
    * @param streamProxyItem
    * @return
    */
   @Override
   public boolean addStreamProxy(StreamProxyItem streamProxyItem) {
      TransactionStatus transactionStatus = dataSourceTransactionManager.getTransaction(transactionDefinition);
      boolean result = false;
      streamProxyItem.setStreamType("proxy");
      streamProxyItem.setStatus(true);
      String now = this.format.format(System.currentTimeMillis());
      streamProxyItem.setCreateTime(now);
      try {
         if (gbStreamMapper.add(streamProxyItem)<0 || streamProxyMapper.add(streamProxyItem) < 0) {
            //事务回滚
            dataSourceTransactionManager.rollback(transactionStatus);
         }
         result = true;
         dataSourceTransactionManager.commit(transactionStatus);     //手动提交
      }catch (Exception e) {
         logger.error("向数据库添加流代理失败：", e);
         dataSourceTransactionManager.rollback(transactionStatus);
      }


      return result;
   }

   /**
    * 更新代理流
    * @param streamProxyItem
    * @return
    */
   @Override
   public boolean updateStreamProxy(StreamProxyItem streamProxyItem) {
      TransactionStatus transactionStatus = dataSourceTransactionManager.getTransaction(transactionDefinition);
      boolean result = false;
      streamProxyItem.setStreamType("proxy");
      try {
         if (gbStreamMapper.update(streamProxyItem)<0 || streamProxyMapper.update(streamProxyItem) < 0) {
            //事务回滚
            dataSourceTransactionManager.rollback(transactionStatus);
         }
         dataSourceTransactionManager.commit(transactionStatus);     //手动提交
         result = true;
      }catch (Exception e) {
         e.printStackTrace();
         dataSourceTransactionManager.rollback(transactionStatus);
      }
      return result;
   }

   /**
    * 移除代理流
    * @param app
    * @param stream
    * @return
    */
   @Override
   public int deleteStreamProxy(String app, String stream) {
      return streamProxyMapper.del(app, stream);
   }

   /**
    * 根据是否启用获取代理流列表
    * @param enable
    * @return
    */
   @Override
   public List<StreamProxyItem> getStreamProxyListForEnable(boolean enable) {
      return streamProxyMapper.selectForEnable(enable);
   }

   /**
    * 分页查询代理流列表
    * @param page
    * @param count
    * @return
    */
   @Override
   public PageInfo<StreamProxyItem> queryStreamProxyList(Integer page, Integer count) {
      PageHelper.startPage(page, count);
      List<StreamProxyItem> all = streamProxyMapper.selectAll();
      return new PageInfo<>(all);
   }

   /**
    * 根据国标ID获取平台关联的直播流
    * @param platformId
    * @param gbId
    * @return
    */
   @Override
   public List<GbStream> queryStreamInParentPlatform(String platformId, String gbId) {
      return gbStreamMapper.queryStreamInPlatform(platformId, gbId);
   }

   /**
    * 获取平台关联的直播流
    * @param platformId
    * @return
    */
   @Override
   public List<GbStream> queryGbStreamListInPlatform(String platformId) {
      return gbStreamMapper.queryGbStreamListInPlatform(platformId);
   }

   /**
    * 按照是app和stream获取代理流
    * @param app
    * @param stream
    * @return
    */
   @Override
   public StreamProxyItem queryStreamProxy(String app, String stream){
      return streamProxyMapper.selectOne(app, stream);
   }

   @Override
   public void updateMediaList(List<StreamPushItem> streamPushItems) {
      if (streamPushItems == null || streamPushItems.size() == 0) return;
      logger.info("updateMediaList:  " + streamPushItems.size());
      streamPushMapper.addAll(streamPushItems);
      // TODO 待优化
      for (int i = 0; i < streamPushItems.size(); i++) {
         gbStreamMapper.setStatus(streamPushItems.get(i).getApp(), streamPushItems.get(i).getStream(), true);
      }
   }

   @Override
   public void updateMedia(StreamPushItem streamPushItem) {
      streamPushMapper.del(streamPushItem.getApp(), streamPushItem.getStream());
      streamPushMapper.add(streamPushItem);
      gbStreamMapper.setStatus(streamPushItem.getApp(), streamPushItem.getStream(), true);
      if(!StringUtils.isEmpty(streamPushItem.getGbId() )){
         // 查找开启了全部直播流共享的上级平台
         List<ParentPlatform> parentPlatforms = parentPlatformMapper.selectAllAhareAllLiveStream();
         if (parentPlatforms.size() > 0) {
            for (ParentPlatform parentPlatform : parentPlatforms) {
               streamPushItem.setPlatformId(parentPlatform.getServerGBId());
               String stream = streamPushItem.getStream();
               StreamProxyItem streamProxyItems = platformGbStreamMapper.selectOne(streamPushItem.getApp(), stream, parentPlatform.getServerGBId());
               if (streamProxyItems == null) {
                  platformGbStreamMapper.add(streamPushItem);
               }

            }
         }
      }

   }

   @Override
   public int removeMedia(String app, String stream) {
      return streamPushMapper.del(app, stream);
   }

   @Override
   public void clearMediaList() {
      streamPushMapper.clear();
   }

   @Override
   public int mediaOutline(String app, String streamId) {
      return gbStreamMapper.setStatus(app, streamId, false);
   }

   @Override
   public void updateParentPlatformStatus(String platformGbID, boolean online) {
      platformMapper.updateParentPlatformStatus(platformGbID, online);
   }

   @Override
   public void updateMediaServer(MediaServerItem mediaServerItem) {
      String now = this.format.format(System.currentTimeMillis());
      mediaServerItem.setUpdateTime(now);
      if (mediaServerMapper.queryOne(mediaServerItem.getId()) != null) {
         mediaServerMapper.update(mediaServerItem);
      }else {
         mediaServerItem.setCreateTime(now);
         mediaServerMapper.add(mediaServerItem);
      }
   }

   @Override
   public List<StreamProxyItem> getStreamProxyListForEnableInMediaServer(String id, boolean enable) {
      return streamProxyMapper.selectForEnableInMediaServer(id, enable);
   }


   @Override
   public Device queryVideoDeviceByChannelId( String channelId) {
      Device result = null;
      List<DeviceChannel> channelList = deviceChannelMapper.queryChannelByChannelId(channelId);
      if (channelList.size() == 1) {
         result = deviceMapper.getDeviceByDeviceId(channelList.get(0).getDeviceId());
      }
      return result;
   }

   @Override
   public StreamProxyItem getStreamProxyByAppAndStream(String app, String streamId) {
      return streamProxyMapper.selectOne(app, streamId);
   }

}