public BaseVO getDevicesInfoByGroupName()

in backend/src/main/java/org/apache/iotdb/admin/controller/IotDBController.java [282:321]
40 lines of code
4 McCabe index (conditional complexity)

  public BaseVO<DeviceInfoVO> getDevicesInfoByGroupName(
      @PathVariable("serverId") Integer serverId,
      @PathVariable("groupName") String groupName,
      @RequestParam("pageSize") Integer pageSize,
      @RequestParam("pageNum") Integer pageNum,
      @RequestParam(value = "keyword", required = false) String keyword,
      HttpServletRequest request)
      throws BaseException {
    checkParameter(groupName);
    check(request, serverId);
    Connection connection = connectionService.getById(serverId);
    CountDTO countDTO =
        iotDBService.getDevicesByGroup(connection, groupName, pageSize, pageNum, keyword);
    List<String> deviceNames = countDTO.getObjects();
    DeviceInfoVO deviceInfoVO = new DeviceInfoVO();
    Integer totalPage = countDTO.getTotalPage();
    Integer totalCount = countDTO.getTotalCount();
    deviceInfoVO.setTotalCount(totalCount);
    deviceInfoVO.setTotalPage(totalPage);
    List<Integer> lines = iotDBService.getTimeseriesCount(connection, deviceNames);
    List<Device> devices = deviceService.getDevices(connection.getHost(), deviceNames);
    List<DeviceInfo> deviceInfos = new ArrayList<>();
    if (deviceNames != null) {
      for (int i = 0; i < deviceNames.size(); i++) {
        String deviceName = deviceNames.get(i);
        DeviceInfo deviceInfo = new DeviceInfo();
        deviceInfo.setDeviceName(deviceName);
        deviceInfo.setLine(lines.get(i));
        deviceInfo.setParents(iotDBService.getDeviceParents(connection, groupName, deviceName));
        if (devices.get(i) != null) {
          deviceInfo.setDeviceId(devices.get(i).getId());
          deviceInfo.setCreator(devices.get(i).getCreator());
          deviceInfo.setDescription(devices.get(i).getDescription());
        }
        deviceInfos.add(deviceInfo);
      }
    }
    deviceInfoVO.setDeviceInfos(deviceInfos);
    return BaseVO.success("Get successfully", deviceInfoVO);
  }