apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/util/OpenApiBeanUtils.java/OpenApiBeanUtils/transformFromItemDTO
class OpenApiBeanUtils:  public static OpenItemDTO transformFromItemDTO(ItemDTO item) {
    Preconditions.checkArgument(item != null);
    return BeanUtils.transform(OpenItemDTO.class, item);
  }