/**
  * A utility to build a GetOnlineRegionResponse.
  *
  * @param regions
  * @return the response
  */
 public static GetOnlineRegionResponse buildGetOnlineRegionResponse(
     final List<HRegionInfo> regions) {
   GetOnlineRegionResponse.Builder builder = GetOnlineRegionResponse.newBuilder();
   for (HRegionInfo region : regions) {
     builder.addRegionInfo(HRegionInfo.convert(region));
   }
   return builder.build();
 }
 /**
  * Get the list of region info from a GetOnlineRegionResponse
  *
  * @param proto the GetOnlineRegionResponse
  * @return the list of region info
  */
 public static List<HRegionInfo> getRegionInfos(final GetOnlineRegionResponse proto) {
   if (proto == null || proto.getRegionInfoCount() == 0) return null;
   return ProtobufUtil.getRegionInfos(proto);
 }