| package com.genersoft.iot.vmp.vmanager.gb28181.device; | 
|   | 
| import com.alibaba.fastjson2.JSONObject; | 
| import com.genersoft.iot.vmp.conf.DynamicTask; | 
| import com.genersoft.iot.vmp.conf.exception.ControllerException; | 
| import com.genersoft.iot.vmp.gb28181.bean.Device; | 
| import com.genersoft.iot.vmp.gb28181.bean.DeviceChannel; | 
| 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.IDeviceChannelService; | 
| import com.genersoft.iot.vmp.service.IDeviceService; | 
| import com.genersoft.iot.vmp.storager.IRedisCatchStorage; | 
| import com.genersoft.iot.vmp.storager.IVideoManagerStorage; | 
| import com.genersoft.iot.vmp.vmanager.bean.BaseTree; | 
| import com.genersoft.iot.vmp.vmanager.bean.ErrorCode; | 
| import com.genersoft.iot.vmp.vmanager.bean.WVPResult; | 
| import com.github.pagehelper.PageInfo; | 
| import io.swagger.v3.oas.annotations.Operation; | 
| import io.swagger.v3.oas.annotations.Parameter; | 
| import io.swagger.v3.oas.annotations.tags.Tag; | 
| import org.apache.commons.compress.utils.IOUtils; | 
| import org.apache.ibatis.annotations.Options; | 
| 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.ObjectUtils; | 
| import org.springframework.web.bind.annotation.*; | 
| import org.springframework.web.context.request.async.DeferredResult; | 
|   | 
| import javax.servlet.http.HttpServletResponse; | 
| import javax.sip.InvalidArgumentException; | 
| import javax.sip.SipException; | 
| import java.io.File; | 
| import java.io.IOException; | 
| import java.io.InputStream; | 
| import java.nio.file.Files; | 
| import java.text.ParseException; | 
| import java.util.*; | 
|   | 
| @Tag(name  = "国标设备查询", description = "国标设备查询") | 
| @SuppressWarnings("rawtypes") | 
|   | 
| @RestController | 
| @RequestMapping("/api/device/query") | 
| public class DeviceQuery { | 
|      | 
|     private final static Logger logger = LoggerFactory.getLogger(DeviceQuery.class); | 
|      | 
|     @Autowired | 
|     private IVideoManagerStorage storager; | 
|   | 
|     @Autowired | 
|     private IDeviceChannelService deviceChannelService; | 
|   | 
|     @Autowired | 
|     private IRedisCatchStorage redisCatchStorage; | 
|      | 
|     @Autowired | 
|     private SIPCommander cmder; | 
|      | 
|     @Autowired | 
|     private DeferredResultHolder resultHolder; | 
|   | 
|     @Autowired | 
|     private IDeviceService deviceService; | 
|   | 
|     @Autowired | 
|     private DynamicTask dynamicTask; | 
|   | 
|     /** | 
|      * 使用ID查询国标设备 | 
|      * @param deviceId 国标ID | 
|      * @return 国标设备 | 
|      */ | 
|     @Operation(summary = "查询国标设备") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @GetMapping("/devices/{deviceId}") | 
|     public Device devices(@PathVariable String deviceId){ | 
|          | 
|         return storager.queryVideoDevice(deviceId); | 
|     } | 
|   | 
|     /** | 
|      * 分页查询国标设备 | 
|      * @param page 当前页 | 
|      * @param count 每页查询数量 | 
|      * @return 分页国标列表 | 
|      */ | 
|     @Operation(summary = "分页查询国标设备") | 
|     @Parameter(name = "page", description = "当前页", required = true) | 
|     @Parameter(name = "count", description = "每页查询数量", required = true) | 
|     @GetMapping("/devices") | 
|     @Options() | 
|     public PageInfo<Device> devices(int page, int count){ | 
| //        if (page == null) page = 0; | 
| //        if (count == null) count = 20; | 
|         return storager.queryVideoDeviceList(page, count,null); | 
|     } | 
|   | 
|     /** | 
|      * 分页查询通道数 | 
|      * | 
|      * @param deviceId 设备id | 
|      * @param page 当前页 | 
|      * @param count 每页条数 | 
|      * @param query 查询内容 | 
|      * @param online 是否在线  在线 true / 离线 false | 
|      * @param channelType 设备 false/子目录 true | 
|      * @param catalogUnderDevice 是否直属与设备的目录 | 
|      * @return 通道列表 | 
|      */ | 
|     @GetMapping("/devices/{deviceId}/channels") | 
|     @Operation(summary = "分页查询通道") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @Parameter(name = "page", description = "当前页", required = true) | 
|     @Parameter(name = "count", description = "每页查询数量", required = true) | 
|     @Parameter(name = "query", description = "查询内容") | 
|     @Parameter(name = "online", description = "是否在线") | 
|     @Parameter(name = "channelType", description = "设备/子目录-> false/true") | 
|     @Parameter(name = "catalogUnderDevice", description = "是否直属与设备的目录") | 
|     public PageInfo<DeviceChannel> 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 catalogUnderDevice) { | 
|         if (ObjectUtils.isEmpty(query)) { | 
|             query = null; | 
|         } | 
|   | 
|         return storager.queryChannelsByDeviceId(deviceId, query, channelType, online, catalogUnderDevice, page, count); | 
|     } | 
|   | 
|     /** | 
|      * 同步设备通道 | 
|      * @param deviceId 设备id | 
|      * @return | 
|      */ | 
|     @Operation(summary = "同步设备通道") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @GetMapping("/devices/{deviceId}/sync") | 
|     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); | 
|         boolean status = deviceService.isSyncRunning(deviceId); | 
|         // 已存在则返回进度 | 
|         if (status) { | 
|             SyncStatus channelSyncStatus = deviceService.getChannelSyncStatus(deviceId); | 
|             return WVPResult.success(channelSyncStatus); | 
|         } | 
|         deviceService.sync(device); | 
|   | 
|         WVPResult<SyncStatus> wvpResult = new WVPResult<>(); | 
|         wvpResult.setCode(0); | 
|         wvpResult.setMsg("开始同步"); | 
|         return wvpResult; | 
|     } | 
|   | 
|     /** | 
|      * 移除设备 | 
|      * @param deviceId 设备id | 
|      * @return | 
|      */ | 
|     @Operation(summary = "移除设备") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @DeleteMapping("/devices/{deviceId}/delete") | 
|     public String delete(@PathVariable String deviceId){ | 
|          | 
|         if (logger.isDebugEnabled()) { | 
|             logger.debug("设备信息删除API调用,deviceId:" + deviceId); | 
|         } | 
|   | 
|         // 清除redis记录 | 
|         boolean isSuccess = deviceService.delete(deviceId); | 
|         if (isSuccess) { | 
|             redisCatchStorage.clearCatchByDeviceId(deviceId); | 
|             // 停止此设备的订阅更新 | 
|             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 json.toString(); | 
|         } else { | 
|             logger.warn("设备信息删除API调用失败!"); | 
|             throw new ControllerException(ErrorCode.ERROR100.getCode(), "设备信息删除API调用失败!"); | 
|         } | 
|     } | 
|   | 
|     /** | 
|      * 分页查询子目录通道 | 
|      * @param deviceId 通道id | 
|      * @param channelId 通道id | 
|      * @param page 当前页 | 
|      * @param count 每页条数 | 
|      * @param query 查询内容 | 
|      * @param online 是否在线 | 
|      * @param channelType 通道类型 | 
|      * @return 子通道列表 | 
|      */ | 
|     @Operation(summary = "分页查询子目录通道") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @Parameter(name = "channelId", description = "通道国标编号", required = true) | 
|     @Parameter(name = "page", description = "当前页", required = true) | 
|     @Parameter(name = "count", description = "每页查询数量", required = true) | 
|     @Parameter(name = "query", description = "查询内容") | 
|     @Parameter(name = "online", description = "是否在线") | 
|     @Parameter(name = "channelType", description = "设备/子目录-> false/true") | 
|     @GetMapping("/sub_channels/{deviceId}/{channelId}/channels") | 
|     public PageInfo<DeviceChannel> subChannels(@PathVariable String deviceId, | 
|                                                   @PathVariable String channelId, | 
|                                                   int page, | 
|                                                   int count, | 
|                                                   @RequestParam(required = false) String query, | 
|                                                   @RequestParam(required = false) Boolean online, | 
|                                                   @RequestParam(required = false) Boolean channelType){ | 
|   | 
|         DeviceChannel deviceChannel = storager.queryChannel(deviceId,channelId); | 
|         if (deviceChannel == null) { | 
|             PageInfo<DeviceChannel> deviceChannelPageResult = new PageInfo<>(); | 
|             return deviceChannelPageResult; | 
|         } | 
|   | 
|         return storager.querySubChannels(deviceId, channelId, query, channelType, online, page, count); | 
|     } | 
|   | 
|     /** | 
|      * 更新通道信息 | 
|      * @param deviceId 设备id | 
|      * @param channel 通道 | 
|      * @return | 
|      */ | 
|     @Operation(summary = "更新通道信息") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @Parameter(name = "channel", description = "通道信息", required = true) | 
|     @PostMapping("/channel/update/{deviceId}") | 
|     public void updateChannel(@PathVariable String deviceId,DeviceChannel channel){ | 
|         deviceChannelService.updateChannel(deviceId, channel); | 
|     } | 
|   | 
|     /** | 
|      * 修改数据流传输模式 | 
|      * @param deviceId 设备id | 
|      * @param streamMode 数据流传输模式 | 
|      * @return | 
|      */ | 
|     @Operation(summary = "修改数据流传输模式") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @Parameter(name = "streamMode", description = "数据流传输模式, 取值:" + | 
|             "UDP(udp传输),TCP-ACTIVE(tcp主动模式,暂不支持),TCP-PASSIVE(tcp被动模式)", required = true) | 
|     @PostMapping("/transport/{deviceId}/{streamMode}") | 
|     public void updateTransport(@PathVariable String deviceId, @PathVariable String streamMode){ | 
|         Device device = deviceService.getDevice(deviceId); | 
|         device.setStreamMode(streamMode); | 
|         deviceService.updateCustomDevice(device); | 
|     } | 
|   | 
|     /** | 
|      * 添加设备信息 | 
|      * @param device 设备信息 | 
|      * @return | 
|      */ | 
|     @Operation(summary = "添加设备信息") | 
|     @Parameter(name = "device", description = "设备", required = true) | 
|     @PostMapping("/device/add/") | 
|     public void addDevice(Device device){ | 
|   | 
|         if (device == null || device.getDeviceId() == null) { | 
|             throw new ControllerException(ErrorCode.ERROR400); | 
|         } | 
|   | 
|         // 查看deviceId是否存在 | 
|         boolean exist = deviceService.isExist(device.getDeviceId()); | 
|         if (exist) { | 
|             throw new ControllerException(ErrorCode.ERROR100.getCode(), "设备编号已存在"); | 
|         } | 
|         deviceService.addDevice(device); | 
|     } | 
|   | 
|     /** | 
|      * 更新设备信息 | 
|      * @param device 设备信息 | 
|      * @return | 
|      */ | 
|     @Operation(summary = "更新设备信息") | 
|     @Parameter(name = "device", description = "设备", required = true) | 
|     @PostMapping("/device/update/") | 
|     public void updateDevice(Device device){ | 
|   | 
|         if (device != null && device.getDeviceId() != null) { | 
|             deviceService.updateCustomDevice(device); | 
|         } | 
|     } | 
|   | 
|     /** | 
|      * 设备状态查询请求API接口 | 
|      *  | 
|      * @param deviceId 设备id | 
|      */ | 
|     @Operation(summary = "设备状态查询") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @GetMapping("/devices/{deviceId}/status") | 
|     public DeferredResult<ResponseEntity<String>> deviceStatusApi(@PathVariable String deviceId) { | 
|         if (logger.isDebugEnabled()) { | 
|             logger.debug("设备状态查询API调用"); | 
|         } | 
|         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; | 
|         } | 
|         try { | 
|             cmder.deviceStatusQuery(device, event -> { | 
|                 RequestMessage msg = new RequestMessage(); | 
|                 msg.setId(uuid); | 
|                 msg.setKey(key); | 
|                 msg.setData(String.format("获取设备状态失败,错误码: %s, %s", event.statusCode, event.msg)); | 
|                 resultHolder.invokeResult(msg); | 
|             }); | 
|         } catch (InvalidArgumentException | SipException | ParseException e) { | 
|             logger.error("[命令发送失败] 获取设备状态: {}", e.getMessage()); | 
|             throw new ControllerException(ErrorCode.ERROR100.getCode(), "命令发送失败: " + e.getMessage()); | 
|         } | 
|         result.onTimeout(()->{ | 
|             logger.warn(String.format("获取设备状态超时")); | 
|             // 释放rtpserver | 
|             RequestMessage msg = new RequestMessage(); | 
|             msg.setId(uuid); | 
|             msg.setKey(key); | 
|             msg.setData("Timeout. Device did not response to this command."); | 
|             resultHolder.invokeResult(msg); | 
|         }); | 
|         resultHolder.put(DeferredResultHolder.CALLBACK_CMD_DEVICESTATUS + deviceId, uuid, result); | 
|         return result; | 
|     } | 
|   | 
|     /** | 
|      * 设备报警查询请求API接口 | 
|      * @param deviceId 设备id | 
|      * @param startPriority    报警起始级别(可选) | 
|      * @param endPriority    报警终止级别(可选) | 
|      * @param alarmMethod    报警方式条件(可选) | 
|      * @param alarmType        报警类型 | 
|      * @param startTime        报警发生起始时间(可选) | 
|      * @param endTime        报警发生终止时间(可选) | 
|      * @return                true = 命令发送成功 | 
|      */ | 
|     @Operation(summary = "设备状态查询") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @Parameter(name = "startPriority", description = "报警起始级别") | 
|     @Parameter(name = "endPriority", description = "报警终止级别") | 
|     @Parameter(name = "alarmMethod", description = "报警方式条件") | 
|     @Parameter(name = "alarmType", description = "报警类型") | 
|     @Parameter(name = "startTime", description = "报警发生起始时间") | 
|     @Parameter(name = "endTime", description = "报警发生终止时间") | 
|     @GetMapping("/alarm/{deviceId}") | 
|     public DeferredResult<ResponseEntity<String>> alarmApi(@PathVariable String deviceId, | 
|                                                         @RequestParam(required = false) String startPriority,  | 
|                                                         @RequestParam(required = false) String endPriority,  | 
|                                                         @RequestParam(required = false) String alarmMethod, | 
|                                                         @RequestParam(required = false) String alarmType, | 
|                                                         @RequestParam(required = false) String startTime, | 
|                                                         @RequestParam(required = false) String endTime) { | 
|         if (logger.isDebugEnabled()) { | 
|             logger.debug("设备报警查询API调用"); | 
|         } | 
|         Device device = storager.queryVideoDevice(deviceId); | 
|         String key = DeferredResultHolder.CALLBACK_CMD_ALARM + deviceId; | 
|         String uuid = UUID.randomUUID().toString(); | 
|         try { | 
|             cmder.alarmInfoQuery(device, startPriority, endPriority, alarmMethod, alarmType, startTime, endTime, event -> { | 
|                 RequestMessage msg = new RequestMessage(); | 
|                 msg.setId(uuid); | 
|                 msg.setKey(key); | 
|                 msg.setData(String.format("设备报警查询失败,错误码: %s, %s",event.statusCode, event.msg)); | 
|                 resultHolder.invokeResult(msg); | 
|             }); | 
|         } catch (InvalidArgumentException | SipException | ParseException e) { | 
|             logger.error("[命令发送失败] 设备报警查询: {}", e.getMessage()); | 
|             throw new ControllerException(ErrorCode.ERROR100.getCode(), "命令发送失败: " + e.getMessage()); | 
|         } | 
|         DeferredResult<ResponseEntity<String>> result = new DeferredResult<ResponseEntity<String >> (3 * 1000L); | 
|         result.onTimeout(()->{ | 
|             logger.warn(String.format("设备报警查询超时")); | 
|             // 释放rtpserver | 
|             RequestMessage msg = new RequestMessage(); | 
|             msg.setId(uuid); | 
|             msg.setKey(key); | 
|             msg.setData("设备报警查询超时"); | 
|             resultHolder.invokeResult(msg); | 
|         }); | 
|         resultHolder.put(DeferredResultHolder.CALLBACK_CMD_ALARM + deviceId, uuid, result); | 
|         return result; | 
|     } | 
|   | 
|   | 
|     @GetMapping("/{deviceId}/sync_status") | 
|     @Operation(summary = "获取通道同步进度") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     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(ErrorCode.SUCCESS.getCode()); | 
|             wvpResult.setMsg(ErrorCode.SUCCESS.getMsg()); | 
|             wvpResult.setData(channelSyncStatus); | 
|             if (channelSyncStatus.getErrorMsg() != null) { | 
|                 wvpResult.setMsg(channelSyncStatus.getErrorMsg()); | 
|             } | 
|         } | 
|         return wvpResult; | 
|     } | 
|   | 
|     @GetMapping("/{deviceId}/subscribe_info") | 
|     @Operation(summary = "获取设备的订阅状态") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     public WVPResult<Map<String, Integer>> getSubscribeInfo(@PathVariable String deviceId) { | 
|         Set<String> allKeys = dynamicTask.getAllKeys(); | 
|         Map<String, Integer> dialogStateMap = new HashMap<>(); | 
|         for (String key : allKeys) { | 
|             if (key.startsWith(deviceId)) { | 
|                 ISubscribeTask subscribeTask = (ISubscribeTask)dynamicTask.get(key); | 
|                 if (subscribeTask instanceof CatalogSubscribeTask) { | 
|                     dialogStateMap.put("catalog", 1); | 
|                 }else if (subscribeTask instanceof MobilePositionSubscribeTask) { | 
|                     dialogStateMap.put("mobilePosition", 1); | 
|                 } | 
|             } | 
|         } | 
|         WVPResult<Map<String, Integer>> wvpResult = new WVPResult<>(); | 
|         wvpResult.setCode(0); | 
|         wvpResult.setData(dialogStateMap); | 
|         return wvpResult; | 
|     } | 
|   | 
|     @GetMapping("/snap/{deviceId}/{channelId}") | 
|     @Operation(summary = "请求截图") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @Parameter(name = "channelId", description = "通道国标编号", required = true) | 
|     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 | 
|      */ | 
|     @Operation(summary = "查询国标树") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @Parameter(name = "parentId", description = "父级国标编号") | 
|     @Parameter(name = "onlyCatalog", description = "只获取目录") | 
|     @Parameter(name = "page", description = "当前页", required = true) | 
|     @Parameter(name = "count", description = "每页条数", required = true) | 
|     @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 | 
|      */ | 
|     @Operation(summary = "查询国标树下的通道") | 
|     @Parameter(name = "deviceId", description = "设备国标编号", required = true) | 
|     @Parameter(name = "parentId", description = "父级国标编号") | 
|     @Parameter(name = "page", description = "当前页", required = true) | 
|     @Parameter(name = "count", description = "每页条数", required = true) | 
|     @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); | 
|     } | 
| } |