| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.hdfs.protocol.datatransfer; |
| |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.hdfs.protocol.ExtendedBlock; |
| import org.apache.hadoop.hdfs.protocol.HdfsProtoUtil; |
| import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.BaseHeaderProto; |
| import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.ClientOperationHeaderProto; |
| import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.OpWriteBlockProto; |
| import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier; |
| import org.apache.hadoop.security.token.Token; |
| |
| |
| /** |
| * Static utilities for dealing with the protocol buffers used by the |
| * Data Transfer Protocol. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| abstract class DataTransferProtoUtil { |
| |
| static BlockConstructionStage fromProto( |
| OpWriteBlockProto.BlockConstructionStage stage) { |
| return BlockConstructionStage.valueOf(BlockConstructionStage.class, |
| stage.name()); |
| } |
| |
| static OpWriteBlockProto.BlockConstructionStage toProto( |
| BlockConstructionStage stage) { |
| return OpWriteBlockProto.BlockConstructionStage.valueOf( |
| stage.name()); |
| } |
| |
| static ClientOperationHeaderProto buildClientHeader(ExtendedBlock blk, |
| String client, Token<BlockTokenIdentifier> blockToken) { |
| ClientOperationHeaderProto header = |
| ClientOperationHeaderProto.newBuilder() |
| .setBaseHeader(buildBaseHeader(blk, blockToken)) |
| .setClientName(client) |
| .build(); |
| return header; |
| } |
| |
| static BaseHeaderProto buildBaseHeader(ExtendedBlock blk, |
| Token<BlockTokenIdentifier> blockToken) { |
| return BaseHeaderProto.newBuilder() |
| .setBlock(HdfsProtoUtil.toProto(blk)) |
| .setToken(HdfsProtoUtil.toProto(blockToken)) |
| .build(); |
| } |
| } |