优化目录订阅时父节点的更新

src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java

@@ -247,4 +247,13 @@ public interface DeviceChannelMapper {
             "<foreach collection='channels'  item='item'  open='(' separator=',' close=')' > #{item.channelId}</foreach>" +
             " </script>"})
     int cleanChannelsNotInList(String deviceId, List<DeviceChannel> channels);
+
+    @Update(" update device_channel" +
+            " set subCount = (select *" +
+            "                from (select count(0)" +
+            "                      from device_channel" +
+            "                      where deviceId = #{deviceId} and parentId = #{channelId}) as temp)" +
+            " where deviceId = #{deviceId} " +
+            " and channelId = #{channelId}")
+    int updateChannelSubCount(String deviceId, String channelId);
 }

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

@@ -42,7 +42,7 @@ import java.util.*;
 @Component
 public class VideoManagerStoragerImpl implements IVideoManagerStorager {
 
-	private Logger logger = LoggerFactory.getLogger(VideoManagerStoragerImpl.class);
+	private final Logger logger = LoggerFactory.getLogger(VideoManagerStoragerImpl.class);
 
 	@Autowired
 	EventPublisher eventPublisher;
@@ -171,6 +171,7 @@ public class VideoManagerStoragerImpl implements IVideoManagerStorager {
 		}else {
 			deviceChannelMapper.update(channel);
 		}
+		deviceChannelMapper.updateChannelSubCount(deviceId,channel.getParentId());
 	}
 
 	@Override