|  |  | 
 |  |  | import com.genersoft.iot.vmp.conf.DynamicTask; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.bean.Device; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.bean.DeviceChannel; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.event.DeviceOffLineDetector; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.bean.SubscribeHolder; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.bean.SyncStatus; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.task.ISubscribeTask; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.task.impl.CatalogSubscribeTask; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.task.impl.MobilePositionSubscribeTask; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.transmit.callback.DeferredResultHolder; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.transmit.callback.RequestMessage; | 
 |  |  | import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommander; | 
 |  |  | import com.genersoft.iot.vmp.service.IDeviceService; | 
 |  |  | import com.genersoft.iot.vmp.storager.IRedisCatchStorage; | 
 |  |  | import com.genersoft.iot.vmp.storager.IVideoManagerStorager; | 
 |  |  | import com.genersoft.iot.vmp.vmanager.bean.DeviceChannelTree; | 
 |  |  | import com.genersoft.iot.vmp.storager.IVideoManagerStorage; | 
 |  |  | import com.genersoft.iot.vmp.vmanager.bean.BaseTree; | 
 |  |  | import com.genersoft.iot.vmp.vmanager.bean.WVPResult; | 
 |  |  | import com.github.pagehelper.PageInfo; | 
 |  |  | import io.swagger.annotations.Api; | 
 |  |  | import io.swagger.annotations.ApiImplicitParam; | 
 |  |  | import io.swagger.annotations.ApiImplicitParams; | 
 |  |  | import io.swagger.annotations.ApiOperation; | 
 |  |  | import org.apache.commons.compress.utils.IOUtils; | 
 |  |  | import org.apache.http.HttpResponse; | 
 |  |  | import org.slf4j.Logger; | 
 |  |  | import org.slf4j.LoggerFactory; | 
 |  |  | import org.springframework.beans.factory.annotation.Autowired; | 
 |  |  | import org.springframework.http.HttpStatus; | 
 |  |  | import org.springframework.http.MediaType; | 
 |  |  | import org.springframework.http.ResponseEntity; | 
 |  |  | import org.springframework.util.StringUtils; | 
 |  |  | import org.springframework.web.bind.annotation.*; | 
 |  |  | import org.springframework.web.context.request.async.DeferredResult; | 
 |  |  |  | 
 |  |  | import java.util.List; | 
 |  |  | import java.util.UUID; | 
 |  |  | import javax.servlet.http.HttpServletResponse; | 
 |  |  | import javax.sip.DialogState; | 
 |  |  | import java.io.*; | 
 |  |  | import java.nio.file.Files; | 
 |  |  | import java.util.*; | 
 |  |  |  | 
 |  |  | @Api(tags = "国标设备查询", value = "国标设备查询") | 
 |  |  | @SuppressWarnings("rawtypes") | 
 |  |  | 
 |  |  |    private final static Logger logger = LoggerFactory.getLogger(DeviceQuery.class); | 
 |  |  |     | 
 |  |  |    @Autowired | 
 |  |  |    private IVideoManagerStorager storager; | 
 |  |  |    private IVideoManagerStorage storager; | 
 |  |  |  | 
 |  |  |    @Autowired | 
 |  |  |    private IRedisCatchStorage redisCatchStorage; | 
 |  |  | 
 |  |  |     | 
 |  |  |    @Autowired | 
 |  |  |    private DeferredResultHolder resultHolder; | 
 |  |  | 	 | 
 |  |  |    @Autowired | 
 |  |  |    private DeviceOffLineDetector offLineDetector; | 
 |  |  |  | 
 |  |  |    @Autowired | 
 |  |  |    private IDeviceService deviceService; | 
 |  |  |  | 
 |  |  |    @Autowired | 
 |  |  |    private DynamicTask dynamicTask; | 
 |  |  |  | 
 |  |  |    @Autowired | 
 |  |  |    private SubscribeHolder subscribeHolder; | 
 |  |  |  | 
 |  |  |    /** | 
 |  |  |     * 使用ID查询国标设备 | 
 |  |  | 
 |  |  |          @ApiImplicitParam(name="query", value = "查询内容" ,dataTypeClass = String.class), | 
 |  |  |          @ApiImplicitParam(name="online", value = "是否在线"  ,dataTypeClass = Boolean.class), | 
 |  |  |          @ApiImplicitParam(name="channelType", value = "设备/子目录-> false/true" ,dataTypeClass = Boolean.class), | 
 |  |  |          @ApiImplicitParam(name="catalogUnderDevice", value = "是否直属与设备的目录" ,dataTypeClass = Boolean.class), | 
 |  |  |    }) | 
 |  |  |    public ResponseEntity<PageInfo> channels(@PathVariable String deviceId, | 
 |  |  |                                     int page, int count, | 
 |  |  |                                     @RequestParam(required = false) String query, | 
 |  |  |                                     @RequestParam(required = false) Boolean online, | 
 |  |  |                                     @RequestParam(required = false) Boolean channelType) { | 
 |  |  |                                     @RequestParam(required = false) Boolean channelType, | 
 |  |  |                                     @RequestParam(required = false) Boolean catalogUnderDevice) { | 
 |  |  | //      if (logger.isDebugEnabled()) { | 
 |  |  | //         logger.debug("查询视频设备通道API调用"); | 
 |  |  | //      } | 
 |  |  | 
 |  |  |          query = null; | 
 |  |  |       } | 
 |  |  |  | 
 |  |  |       PageInfo pageResult = storager.queryChannelsByDeviceId(deviceId, query, channelType, online, page, count); | 
 |  |  |       PageInfo pageResult = storager.queryChannelsByDeviceId(deviceId, query, channelType, online, catalogUnderDevice, page, count); | 
 |  |  |       return new ResponseEntity<>(pageResult,HttpStatus.OK); | 
 |  |  |    } | 
 |  |  |  | 
 |  |  | 
 |  |  |          @ApiImplicitParam(name="deviceId", value = "设备id", required = true, dataTypeClass = String.class), | 
 |  |  |    }) | 
 |  |  |    @PostMapping("/devices/{deviceId}/sync") | 
 |  |  |    public DeferredResult<ResponseEntity<Device>> devicesSync(@PathVariable String deviceId){ | 
 |  |  |    public WVPResult<SyncStatus> devicesSync(@PathVariable String deviceId){ | 
 |  |  |        | 
 |  |  |       if (logger.isDebugEnabled()) { | 
 |  |  |          logger.debug("设备通道信息同步API调用,deviceId:" + deviceId); | 
 |  |  |       } | 
 |  |  |       Device device = storager.queryVideoDevice(deviceId); | 
 |  |  |       String key = DeferredResultHolder.CALLBACK_CMD_CATALOG + deviceId; | 
 |  |  |       String uuid = UUID.randomUUID().toString(); | 
 |  |  |       // 默认超时时间为30分钟 | 
 |  |  |       DeferredResult<ResponseEntity<Device>> result = new DeferredResult<ResponseEntity<Device>>(30*60*1000L); | 
 |  |  |       result.onTimeout(()->{ | 
 |  |  |          logger.warn("设备[{}]通道信息同步超时", deviceId); | 
 |  |  |          // 释放rtpserver | 
 |  |  |          RequestMessage msg = new RequestMessage(); | 
 |  |  |          msg.setKey(key); | 
 |  |  |          msg.setId(uuid); | 
 |  |  |          WVPResult<Object> wvpResult = new WVPResult<>(); | 
 |  |  |          wvpResult.setCode(-1); | 
 |  |  |          wvpResult.setData(device); | 
 |  |  |          wvpResult.setMsg("更新超时"); | 
 |  |  |          msg.setData(wvpResult); | 
 |  |  |          resultHolder.invokeAllResult(msg); | 
 |  |  |  | 
 |  |  |       }); | 
 |  |  |       // 等待其他相同请求返回时一起返回 | 
 |  |  |       if (resultHolder.exist(key, null)) { | 
 |  |  |          return result; | 
 |  |  |       boolean status = deviceService.isSyncRunning(deviceId); | 
 |  |  |       // 已存在则返回进度 | 
 |  |  |       if (status) { | 
 |  |  |          WVPResult<SyncStatus> wvpResult = new WVPResult<>(); | 
 |  |  |          wvpResult.setCode(0); | 
 |  |  |          SyncStatus channelSyncStatus = deviceService.getChannelSyncStatus(deviceId); | 
 |  |  |          wvpResult.setData(channelSyncStatus); | 
 |  |  |          return wvpResult; | 
 |  |  |       } | 
 |  |  |         cmder.catalogQuery(device, event -> { | 
 |  |  |          RequestMessage msg = new RequestMessage(); | 
 |  |  |          msg.setKey(key); | 
 |  |  |          msg.setId(uuid); | 
 |  |  |          WVPResult<Object> wvpResult = new WVPResult<>(); | 
 |  |  |          wvpResult.setCode(-1); | 
 |  |  |          wvpResult.setData(device); | 
 |  |  |          wvpResult.setMsg(String.format("同步通道失败,错误码: %s, %s", event.statusCode, event.msg)); | 
 |  |  |          msg.setData(wvpResult); | 
 |  |  |          resultHolder.invokeAllResult(msg); | 
 |  |  |       }); | 
 |  |  |       deviceService.sync(device); | 
 |  |  |  | 
 |  |  |         resultHolder.put(key, uuid, result); | 
 |  |  |         return result; | 
 |  |  |       WVPResult<SyncStatus> wvpResult = new WVPResult<>(); | 
 |  |  |       wvpResult.setCode(0); | 
 |  |  |       wvpResult.setMsg("开始同步"); | 
 |  |  |       return wvpResult; | 
 |  |  |    } | 
 |  |  |  | 
 |  |  |    /** | 
 |  |  | 
 |  |  |       if (isSuccess) { | 
 |  |  |          redisCatchStorage.clearCatchByDeviceId(deviceId); | 
 |  |  |          // 停止此设备的订阅更新 | 
 |  |  |          dynamicTask.stop(deviceId); | 
 |  |  |          Set<String> allKeys = dynamicTask.getAllKeys(); | 
 |  |  |          for (String key : allKeys) { | 
 |  |  |             if (key.startsWith(deviceId)) { | 
 |  |  |                Runnable runnable = dynamicTask.get(key); | 
 |  |  |                if (runnable instanceof ISubscribeTask) { | 
 |  |  |                   ISubscribeTask subscribeTask = (ISubscribeTask) runnable; | 
 |  |  |                   subscribeTask.stop(); | 
 |  |  |                } | 
 |  |  |                dynamicTask.stop(key); | 
 |  |  |             } | 
 |  |  |          } | 
 |  |  |          JSONObject json = new JSONObject(); | 
 |  |  |          json.put("deviceId", deviceId); | 
 |  |  |          return new ResponseEntity<>(json.toString(),HttpStatus.OK); | 
 |  |  | 
 |  |  |          @ApiImplicitParam(name="page", value = "当前页", required = true, dataTypeClass = Integer.class), | 
 |  |  |          @ApiImplicitParam(name="count", value = "每页条数", required = true, dataTypeClass = Integer.class), | 
 |  |  |          @ApiImplicitParam(name="query", value = "查询内容", dataTypeClass = String.class), | 
 |  |  |          @ApiImplicitParam(name="online", value = "是否在线", dataTypeClass = String.class), | 
 |  |  |          @ApiImplicitParam(name="online", value = "是否在线", dataTypeClass = Boolean.class), | 
 |  |  |          @ApiImplicitParam(name="channelType", value = "通道类型, 子目录", dataTypeClass = Boolean.class), | 
 |  |  |    }) | 
 |  |  |    @GetMapping("/sub_channels/{deviceId}/{channelId}/channels") | 
 |  |  | 
 |  |  |                                       int page, | 
 |  |  |                                       int count, | 
 |  |  |                                       @RequestParam(required = false) String query, | 
 |  |  |                                       @RequestParam(required = false) String online, | 
 |  |  |                                       @RequestParam(required = false) Boolean online, | 
 |  |  |                                       @RequestParam(required = false) Boolean channelType){ | 
 |  |  |  | 
 |  |  | //      if (logger.isDebugEnabled()) { | 
 |  |  | 
 |  |  |    public ResponseEntity<PageInfo> updateTransport(@PathVariable String deviceId, @PathVariable String streamMode){ | 
 |  |  |       Device device = storager.queryVideoDevice(deviceId); | 
 |  |  |       device.setStreamMode(streamMode); | 
 |  |  |       storager.updateDevice(device); | 
 |  |  | //      storager.updateDevice(device); | 
 |  |  |       deviceService.updateDevice(device); | 
 |  |  |       return new ResponseEntity<>(null,HttpStatus.OK); | 
 |  |  |    } | 
 |  |  |  | 
 |  |  | 
 |  |  |    public ResponseEntity<WVPResult<String>> updateDevice(Device device){ | 
 |  |  |  | 
 |  |  |       if (device != null && device.getDeviceId() != null) { | 
 |  |  |          Device deviceInStore = storager.queryVideoDevice(device.getDeviceId()); | 
 |  |  |          if (!StringUtils.isEmpty(device.getName())) deviceInStore.setName(device.getName()); | 
 |  |  |          if (!StringUtils.isEmpty(device.getCharset())) deviceInStore.setCharset(device.getCharset()); | 
 |  |  |          if (!StringUtils.isEmpty(device.getMediaServerId())) deviceInStore.setMediaServerId(device.getMediaServerId()); | 
 |  |  |  | 
 |  |  |          if (device.getSubscribeCycleForCatalog() > 0) { | 
 |  |  |             if (deviceInStore.getSubscribeCycleForCatalog() == 0 || deviceInStore.getSubscribeCycleForCatalog() != device.getSubscribeCycleForCatalog()) { | 
 |  |  |                // 开启订阅 | 
 |  |  |                deviceService.addCatalogSubscribe(deviceInStore); | 
 |  |  |             } | 
 |  |  |          }else if (device.getSubscribeCycleForCatalog() == 0) { | 
 |  |  |             if (deviceInStore.getSubscribeCycleForCatalog() != 0) { | 
 |  |  |                // 取消订阅 | 
 |  |  |                deviceService.removeCatalogSubscribe(deviceInStore); | 
 |  |  |             } | 
 |  |  |          } | 
 |  |  |  | 
 |  |  |          storager.updateDevice(device); | 
 |  |  |          cmder.deviceInfoQuery(device); | 
 |  |  |          deviceService.updateDevice(device); | 
 |  |  |       } | 
 |  |  |       WVPResult<String> result = new WVPResult<>(); | 
 |  |  |       result.setCode(0); | 
 |  |  | 
 |  |  |       Device device = storager.queryVideoDevice(deviceId); | 
 |  |  |       String uuid = UUID.randomUUID().toString(); | 
 |  |  |       String key = DeferredResultHolder.CALLBACK_CMD_DEVICESTATUS + deviceId; | 
 |  |  |       DeferredResult<ResponseEntity<String>> result = new DeferredResult<ResponseEntity<String>>(2*1000L); | 
 |  |  |       if(device == null) { | 
 |  |  |          result.setResult(new ResponseEntity(String.format("设备%s不存在", deviceId),HttpStatus.OK)); | 
 |  |  |          return result; | 
 |  |  |       } | 
 |  |  |       cmder.deviceStatusQuery(device, event -> { | 
 |  |  |          RequestMessage msg = new RequestMessage(); | 
 |  |  |          msg.setId(uuid); | 
 |  |  | 
 |  |  |          msg.setData(String.format("获取设备状态失败,错误码: %s, %s", event.statusCode, event.msg)); | 
 |  |  |          resultHolder.invokeResult(msg); | 
 |  |  |       }); | 
 |  |  |         DeferredResult<ResponseEntity<String>> result = new DeferredResult<ResponseEntity<String>>(2*1000L); | 
 |  |  |       result.onTimeout(()->{ | 
 |  |  |          logger.warn(String.format("获取设备状态超时")); | 
 |  |  |          // 释放rtpserver | 
 |  |  | 
 |  |  |       return result; | 
 |  |  |    } | 
 |  |  |  | 
 |  |  |    @GetMapping("/{deviceId}/tree") | 
 |  |  |    @ApiOperation(value = "通道树形结构", notes = "通道树形结构") | 
 |  |  |    public WVPResult<List<DeviceChannelTree>> tree(@PathVariable String deviceId) { | 
 |  |  |       return WVPResult.Data(storager.tree(deviceId)); | 
 |  |  |  | 
 |  |  |    @GetMapping("/{deviceId}/sync_status") | 
 |  |  |    @ApiOperation(value = "获取通道同步进度", notes = "获取通道同步进度") | 
 |  |  |    public WVPResult<SyncStatus> getSyncStatus(@PathVariable String deviceId) { | 
 |  |  |       SyncStatus channelSyncStatus = deviceService.getChannelSyncStatus(deviceId); | 
 |  |  |       WVPResult<SyncStatus> wvpResult = new WVPResult<>(); | 
 |  |  |       if (channelSyncStatus == null) { | 
 |  |  |          wvpResult.setCode(-1); | 
 |  |  |          wvpResult.setMsg("同步尚未开始"); | 
 |  |  |       }else { | 
 |  |  |          wvpResult.setCode(0); | 
 |  |  |          wvpResult.setData(channelSyncStatus); | 
 |  |  |          if (channelSyncStatus.getErrorMsg() != null) { | 
 |  |  |             wvpResult.setMsg(channelSyncStatus.getErrorMsg()); | 
 |  |  |          } | 
 |  |  |       } | 
 |  |  |       return wvpResult; | 
 |  |  |    } | 
 |  |  |  | 
 |  |  |    @GetMapping("/{deviceId}/subscribe_info") | 
 |  |  |    @ApiOperation(value = "获取设备的订阅状态", notes = "获取设备的订阅状态") | 
 |  |  |    public WVPResult<Map<String, String>> getSubscribeInfo(@PathVariable String deviceId) { | 
 |  |  |       Set<String> allKeys = dynamicTask.getAllKeys(); | 
 |  |  |       Map<String, String> dialogStateMap = new HashMap<>(); | 
 |  |  |       for (String key : allKeys) { | 
 |  |  |          if (key.startsWith(deviceId)) { | 
 |  |  |             ISubscribeTask subscribeTask = (ISubscribeTask)dynamicTask.get(key); | 
 |  |  |             DialogState dialogState = subscribeTask.getDialogState(); | 
 |  |  |             if (dialogState == null) { | 
 |  |  |                continue; | 
 |  |  |             } | 
 |  |  |             if (subscribeTask instanceof CatalogSubscribeTask) { | 
 |  |  |                dialogStateMap.put("catalog", dialogState.toString()); | 
 |  |  |             }else if (subscribeTask instanceof MobilePositionSubscribeTask) { | 
 |  |  |                dialogStateMap.put("mobilePosition", dialogState.toString()); | 
 |  |  |             } | 
 |  |  |          } | 
 |  |  |       } | 
 |  |  |       WVPResult<Map<String, String>> wvpResult = new WVPResult<>(); | 
 |  |  |       wvpResult.setCode(0); | 
 |  |  |       wvpResult.setData(dialogStateMap); | 
 |  |  |       return wvpResult; | 
 |  |  |    } | 
 |  |  |  | 
 |  |  |    @GetMapping("/snap/{deviceId}/{channelId}") | 
 |  |  |    @ApiOperation(value = "请求截图", notes = "请求截图") | 
 |  |  |    public void getSnap(HttpServletResponse resp, @PathVariable String deviceId, @PathVariable String channelId) { | 
 |  |  |  | 
 |  |  |       try { | 
 |  |  |          final InputStream in = Files.newInputStream(new File("snap" + File.separator + deviceId + "_" + channelId + ".jpg").toPath()); | 
 |  |  |          resp.setContentType(MediaType.IMAGE_PNG_VALUE); | 
 |  |  |          IOUtils.copy(in, resp.getOutputStream()); | 
 |  |  |       } catch (IOException e) { | 
 |  |  |          resp.setStatus(HttpServletResponse.SC_NOT_FOUND); | 
 |  |  |       } | 
 |  |  |    } | 
 |  |  |  | 
 |  |  |    /** | 
 |  |  |     * 查询国标树 | 
 |  |  |     * @param deviceId 设备ID | 
 |  |  |     * @param parentId 父ID | 
 |  |  |     * @param page 当前页 | 
 |  |  |     * @param count 每页条数 | 
 |  |  |     * @return 国标设备 | 
 |  |  |     */ | 
 |  |  |    @ApiOperation("查询国标树") | 
 |  |  |    @ApiImplicitParams({ | 
 |  |  |          @ApiImplicitParam(name = "deviceId", value = "设备ID", required = true, dataTypeClass = String.class), | 
 |  |  |          @ApiImplicitParam(name = "parentId", value = "父ID", required = false, dataTypeClass = String.class), | 
 |  |  |          @ApiImplicitParam(name = "onlyCatalog", value = "只获取目录", required = false, dataTypeClass = Boolean.class), | 
 |  |  |          @ApiImplicitParam(name="page", value = "当前页", required = true, dataTypeClass = Integer.class), | 
 |  |  |          @ApiImplicitParam(name="count", value = "每页条数", required = true, dataTypeClass = Integer.class), | 
 |  |  |    }) | 
 |  |  |    @GetMapping("/tree/{deviceId}") | 
 |  |  |    public ResponseEntity<PageInfo> getTree(@PathVariable String deviceId, @RequestParam(required = false) String parentId, @RequestParam(required = false) Boolean onlyCatalog, int page, int count){ | 
 |  |  |  | 
 |  |  |  | 
 |  |  |       if (page <= 0) { | 
 |  |  |          page = 1; | 
 |  |  |       } | 
 |  |  |       if (onlyCatalog == null) { | 
 |  |  |          onlyCatalog = false; | 
 |  |  |       } | 
 |  |  |  | 
 |  |  |       List<BaseTree<DeviceChannel>> treeData = deviceService.queryVideoDeviceTree(deviceId, parentId, onlyCatalog); | 
 |  |  |       if (treeData == null || (page - 1) * count > treeData.size()) { | 
 |  |  |          PageInfo<BaseTree<DeviceChannel>> pageInfo = new PageInfo<>(); | 
 |  |  |          pageInfo.setPageNum(page); | 
 |  |  |          pageInfo.setTotal(treeData == null? 0 : treeData.size()); | 
 |  |  |          pageInfo.setSize(0); | 
 |  |  |          pageInfo.setList(new ArrayList<>()); | 
 |  |  |          return new ResponseEntity<>(pageInfo,HttpStatus.OK); | 
 |  |  |       } | 
 |  |  |  | 
 |  |  |       int toIndex = Math.min(page * count, treeData.size()); | 
 |  |  |       // 处理分页 | 
 |  |  |       List<BaseTree<DeviceChannel>> trees = treeData.subList((page - 1) * count, toIndex); | 
 |  |  |       PageInfo<BaseTree<DeviceChannel>> pageInfo = new PageInfo<>(); | 
 |  |  |       pageInfo.setPageNum(page); | 
 |  |  |       pageInfo.setTotal(treeData.size()); | 
 |  |  |       pageInfo.setSize(trees.size()); | 
 |  |  |       pageInfo.setList(trees); | 
 |  |  |  | 
 |  |  |       return new ResponseEntity<>(pageInfo,HttpStatus.OK); | 
 |  |  |    } | 
 |  |  |  | 
 |  |  |  | 
 |  |  |    /** | 
 |  |  |     * 查询国标树下的通道 | 
 |  |  |     * @param deviceId 设备ID | 
 |  |  |     * @param parentId 父ID | 
 |  |  |     * @param page 当前页 | 
 |  |  |     * @param count 每页条数 | 
 |  |  |     * @return 国标设备 | 
 |  |  |     */ | 
 |  |  |    @ApiOperation("查询国标树下的通道") | 
 |  |  |    @ApiImplicitParams({ | 
 |  |  |          @ApiImplicitParam(name = "deviceId", value = "设备ID", required = true, dataTypeClass = String.class), | 
 |  |  |          @ApiImplicitParam(name = "parentId", value = "父ID", required = false, dataTypeClass = String.class), | 
 |  |  |          @ApiImplicitParam(name="page", value = "当前页", required = true, dataTypeClass = Integer.class), | 
 |  |  |          @ApiImplicitParam(name="count", value = "每页条数", required = true, dataTypeClass = Integer.class), | 
 |  |  |    }) | 
 |  |  |    @GetMapping("/tree/channel/{deviceId}") | 
 |  |  |    public ResponseEntity<PageInfo> getChannelInTreeNode(@PathVariable String deviceId, @RequestParam(required = false) String parentId, int page, int count){ | 
 |  |  |  | 
 |  |  |  | 
 |  |  |       if (page <= 0) { | 
 |  |  |          page = 1; | 
 |  |  |       } | 
 |  |  |  | 
 |  |  |       List<DeviceChannel> treeData = deviceService.queryVideoDeviceInTreeNode(deviceId, parentId); | 
 |  |  |       if (treeData == null || (page - 1) * count > treeData.size()) { | 
 |  |  |          PageInfo<BaseTree<DeviceChannel>> pageInfo = new PageInfo<>(); | 
 |  |  |          pageInfo.setPageNum(page); | 
 |  |  |          pageInfo.setTotal(treeData == null? 0 : treeData.size()); | 
 |  |  |          pageInfo.setSize(0); | 
 |  |  |          pageInfo.setList(new ArrayList<>()); | 
 |  |  |          return new ResponseEntity<>(pageInfo,HttpStatus.OK); | 
 |  |  |       } | 
 |  |  |  | 
 |  |  |       int toIndex = Math.min(page * count, treeData.size()); | 
 |  |  |       // 处理分页 | 
 |  |  |       List<DeviceChannel> trees = treeData.subList((page - 1) * count, toIndex); | 
 |  |  |       PageInfo<DeviceChannel> pageInfo = new PageInfo<>(); | 
 |  |  |       pageInfo.setPageNum(page); | 
 |  |  |       pageInfo.setTotal(treeData.size()); | 
 |  |  |       pageInfo.setSize(trees.size()); | 
 |  |  |       pageInfo.setList(trees); | 
 |  |  |  | 
 |  |  |       return new ResponseEntity<>(pageInfo,HttpStatus.OK); | 
 |  |  |    } | 
 |  |  | } |