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