1/********************************************************************
2 * Copyright (c) 2013 - 2014, Pivotal Inc.
3 * All rights reserved.
4 *
5 * Author: Zhanwei Wang
6 ********************************************************************/
7/********************************************************************
8 * 2014 -
9 * open source under Apache License Version 2.0
10 ********************************************************************/
11/**
12 * Licensed to the Apache Software Foundation (ASF) under one
13 * or more contributor license agreements. See the NOTICE file
14 * distributed with this work for additional information
15 * regarding copyright ownership. The ASF licenses this file
16 * to you under the Apache License, Version 2.0 (the
17 * "License"); you may not use this file except in compliance
18 * with the License. You may obtain a copy of the License at
19 *
20 * http://www.apache.org/licenses/LICENSE-2.0
21 *
22 * Unless required by applicable law or agreed to in writing, software
23 * distributed under the License is distributed on an "AS IS" BASIS,
24 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
25 * See the License for the specific language governing permissions and
26 * limitations under the License.
27 */
28#ifndef _HDFS_LIBHDFS3_SERVER_EXTENDEDBLOCK_H_
29#define _HDFS_LIBHDFS3_SERVER_EXTENDEDBLOCK_H_
30
31#include "Hash.h"
32#include <string>
33#include <sstream>
34
35namespace Hdfs {
36namespace Internal {
37
38/**
39 * Identifies a Block uniquely across the block pools
40 */
41class ExtendedBlock {
42public:
43 ExtendedBlock() :
44 blockId(0), generationStamp(0), numBytes(0) {
45 }
46
47 int64_t getBlockId() const {
48 return blockId;
49 }
50
51 void setBlockId(int64_t blockId) {
52 this->blockId = blockId;
53 }
54
55 int64_t getGenerationStamp() const {
56 return generationStamp;
57 }
58
59 void setGenerationStamp(int64_t generationStamp) {
60 this->generationStamp = generationStamp;
61 }
62
63 int64_t getNumBytes() const {
64 return numBytes;
65 }
66
67 void setNumBytes(int64_t numBytes) {
68 this->numBytes = numBytes;
69 }
70
71 const std::string & getPoolId() const {
72 return poolId;
73 }
74
75 void setPoolId(const std::string & poolId) {
76 this->poolId = poolId;
77 }
78
79 const std::string toString() const {
80 std::stringstream ss;
81 ss.imbue(std::locale::classic());
82 ss << "[block pool ID: " << poolId << " block ID " << blockId << "_"
83 << generationStamp << "]";
84 return ss.str();
85 }
86
87 size_t hash_value() const {
88 size_t values[] = { Int64Hasher(blockId), StringHasher(poolId) };
89 return CombineHasher(values, sizeof(values) / sizeof(values[0]));
90 }
91
92private:
93 int64_t blockId;
94 int64_t generationStamp;
95 int64_t numBytes;
96 std::string poolId;
97};
98
99}
100}
101
102HDFS_HASH_DEFINE(::Hdfs::Internal::ExtendedBlock);
103
104#endif /* _HDFS_LIBHDFS3_SERVER_EXTENDEDBLOCK_H_ */
105