ClientNamenodeProtocolTranslatorPB.java 文件源码

@Override
public LocatedBlock getAdditionalDatanode(String src, long fileId,
    ExtendedBlock blk, DatanodeInfo[] existings, String[] existingStorageIDs,
    DatanodeInfo[] excludes,
    int numAdditionalNodes, String clientName) throws AccessControlException,
    FileNotFoundException, SafeModeException, UnresolvedLinkException,
    IOException {
  GetAdditionalDatanodeRequestProto req = GetAdditionalDatanodeRequestProto
      .newBuilder()
      .setSrc(src)
      .setFileId(fileId)
      .setBlk(PBHelper.convert(blk))
      .addAllExistings(PBHelper.convert(existings))
      .addAllExistingStorageUuids(Arrays.asList(existingStorageIDs))
      .addAllExcludes(PBHelper.convert(excludes))
      .setNumAdditionalNodes(numAdditionalNodes)
      .setClientName(clientName)
      .build();
  try {
    return PBHelper.convert(rpcProxy.getAdditionalDatanode(null, req)
        .getBlock());
  } catch (ServiceException e) {
    throw ProtobufHelper.getRemoteException(e);
  }
}