Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Compression/ZipWriter.h @ 5044:6fed78e13233
Refactored DicomMap to handle sequences when needed
author | Alain Mazy <am@osimis.io> |
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date | Tue, 28 Jun 2022 17:45:09 +0200 |
parents | 43e613a7756b |
children | 0ea402b4d901 |
rev | line source |
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136 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
136 | 7 * |
8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
136 | 12 * |
13 * This program is distributed in the hope that it will be useful, but | |
14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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16 * Lesser General Public License for more details. |
136 | 17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
136 | 21 **/ |
22 | |
23 | |
81 | 24 #pragma once |
25 | |
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26 #include "../OrthancFramework.h" |
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27 |
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28 #if !defined(ORTHANC_ENABLE_ZLIB) |
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29 # error The macro ORTHANC_ENABLE_ZLIB must be defined |
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30 #endif |
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31 |
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32 #if ORTHANC_ENABLE_ZLIB != 1 |
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33 # error ZLIB support must be enabled to include this file |
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34 #endif |
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35 |
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36 #if ORTHANC_BUILD_UNIT_TESTS == 1 |
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37 # include <gtest/gtest_prod.h> |
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38 #endif |
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39 |
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40 #include "../ChunkedBuffer.h" |
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41 #include "../Compatibility.h" |
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42 |
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43 |
81 | 44 #include <stdint.h> |
93 | 45 #include <string> |
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46 #include <boost/noncopyable.hpp> |
81 | 47 #include <boost/shared_ptr.hpp> |
265 | 48 |
81 | 49 namespace Orthanc |
50 { | |
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51 class ORTHANC_PUBLIC ZipWriter : public boost::noncopyable |
81 | 52 { |
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53 #if ORTHANC_BUILD_UNIT_TESTS == 1 |
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54 FRIEND_TEST(ZipWriter, BufferWithSeek); |
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55 #endif |
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56 |
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57 public: |
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58 // New in Orthanc 1.9.4 |
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59 class ORTHANC_PUBLIC IOutputStream : public boost::noncopyable |
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60 { |
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61 public: |
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62 virtual ~IOutputStream() |
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63 { |
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64 } |
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65 |
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66 virtual void Write(const std::string& chunk) = 0; |
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67 |
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68 virtual void Close() = 0; |
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69 |
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70 virtual uint64_t GetArchiveSize() const = 0; |
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71 }; |
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72 |
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73 |
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74 // The lifetime of the "target" buffer must be larger than that of ZipWriter |
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75 class ORTHANC_PUBLIC MemoryStream : public IOutputStream |
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76 { |
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77 private: |
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78 std::string& target_; |
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79 ChunkedBuffer chunked_; |
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80 uint64_t archiveSize_; |
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81 |
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82 public: |
4690 | 83 explicit MemoryStream(std::string& target); |
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84 |
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85 virtual void Write(const std::string& chunk) ORTHANC_OVERRIDE; |
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86 |
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87 virtual void Close() ORTHANC_OVERRIDE; |
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88 |
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89 virtual uint64_t GetArchiveSize() const ORTHANC_OVERRIDE; |
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90 }; |
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91 |
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92 |
81 | 93 private: |
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94 // This class is only public for unit tests |
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95 class ORTHANC_PUBLIC BufferWithSeek : public boost::noncopyable |
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96 { |
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97 private: |
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98 size_t currentPosition_; |
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99 ChunkedBuffer chunks_; |
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100 std::string flattened_; |
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101 |
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102 void CheckInvariants() const; |
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103 |
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104 public: |
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105 BufferWithSeek(); |
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106 |
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107 ~BufferWithSeek(); |
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108 |
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109 size_t GetPosition() const; |
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110 |
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111 size_t GetSize() const; |
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112 |
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113 void Write(const void* data, |
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114 size_t size); |
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115 |
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116 void Write(const std::string& data); |
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117 |
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118 void Seek(size_t position); |
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119 |
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120 void Flush(std::string& target); |
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121 }; |
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122 |
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123 |
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124 private: |
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125 class StreamBuffer; |
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126 |
81 | 127 struct PImpl; |
128 boost::shared_ptr<PImpl> pimpl_; | |
129 | |
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130 bool isZip64_; |
81 | 131 bool hasFileInZip_; |
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132 bool append_; |
81 | 133 uint8_t compressionLevel_; |
134 std::string path_; | |
135 | |
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136 std::unique_ptr<IOutputStream> outputStream_; |
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137 |
81 | 138 public: |
139 ZipWriter(); | |
140 | |
141 ~ZipWriter(); | |
142 | |
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143 void SetZip64(bool isZip64); |
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144 |
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145 bool IsZip64() const; |
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146 |
81 | 147 void SetCompressionLevel(uint8_t level); |
148 | |
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149 uint8_t GetCompressionLevel() const; |
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150 |
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151 void SetAppendToExisting(bool append); |
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152 |
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153 bool IsAppendToExisting() const; |
81 | 154 |
155 void Open(); | |
156 | |
157 void Close(); | |
158 | |
159 bool IsOpen() const; | |
160 | |
161 void SetOutputPath(const char* path); | |
162 | |
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163 const std::string& GetOutputPath() const; |
81 | 164 |
249 | 165 void OpenFile(const char* path); |
81 | 166 |
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167 void Write(const void* data, size_t length); |
81 | 168 |
169 void Write(const std::string& data); | |
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170 |
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171 void AcquireOutputStream(IOutputStream* stream, // transfers ownership |
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172 bool isZip64); |
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173 |
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174 // The lifetime of the "target" buffer must be larger than that of ZipWriter |
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175 void SetMemoryOutput(std::string& target, |
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176 bool isZip64); |
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177 |
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178 void CancelStream(); |
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179 |
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180 // WARNING: "GetArchiveSize()" only has its final value after |
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181 // "Close()" has been called |
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182 uint64_t GetArchiveSize() const; |
81 | 183 }; |
184 } |