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annotate OrthancFramework/Sources/Compression/HierarchicalZipWriter.h @ 4984:c8cdf5163cd2

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author Alain Mazy <am@osimis.io>
date Mon, 25 Apr 2022 18:54:45 +0200
parents 43e613a7756b
children 0ea402b4d901
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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
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7 *
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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.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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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/>.
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21 **/
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22
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23
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24 #pragma once
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25
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26 #include "ZipWriter.h"
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27
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28 #include <map>
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29 #include <list>
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30 #include <boost/lexical_cast.hpp>
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31
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32 #if ORTHANC_BUILD_UNIT_TESTS == 1
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33 # include <gtest/gtest_prod.h>
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34 #endif
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35
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36 namespace Orthanc
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37 {
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38 class ORTHANC_PUBLIC HierarchicalZipWriter : public boost::noncopyable
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39 {
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40 #if ORTHANC_BUILD_UNIT_TESTS == 1
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41 FRIEND_TEST(HierarchicalZipWriter, Index);
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42 FRIEND_TEST(HierarchicalZipWriter, Filenames);
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43 #endif
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45 private:
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46 class ORTHANC_PUBLIC Index
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47 {
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48 private:
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49 struct Directory
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50 {
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51 typedef std::map<std::string, unsigned int> Content;
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52
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53 std::string name_;
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54 Content content_;
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55 };
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56
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57 typedef std::list<Directory*> Stack;
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58
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59 Stack stack_;
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60
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61 std::string EnsureUniqueFilename(const char* filename);
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62
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63 public:
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64 Index();
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65
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66 ~Index();
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67
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68 bool IsRoot() const;
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69
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70 std::string OpenFile(const char* name);
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71
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72 void OpenDirectory(const char* name);
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73
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74 void CloseDirectory();
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75
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76 std::string GetCurrentDirectoryPath() const;
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77
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78 static std::string KeepAlphanumeric(const std::string& source);
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79 };
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80
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81 Index indexer_;
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82 ZipWriter writer_;
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83
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84 public:
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85 explicit HierarchicalZipWriter(const char* path);
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86
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87 HierarchicalZipWriter(ZipWriter::IOutputStream* stream, // transfers ownership
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88 bool isZip64);
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89
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90 ~HierarchicalZipWriter();
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91
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92 void SetZip64(bool isZip64);
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93
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94 bool IsZip64() const;
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95
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96 void SetCompressionLevel(uint8_t level);
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97
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98 uint8_t GetCompressionLevel() const;
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99
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100 void SetAppendToExisting(bool append);
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101
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102 bool IsAppendToExisting() const;
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103
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104 void OpenFile(const char* name);
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105
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106 void OpenDirectory(const char* name);
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107
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108 void CloseDirectory();
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109
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110 std::string GetCurrentDirectoryPath() const;
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111
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112 void Write(const void* data, size_t length);
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113
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114 void Write(const std::string& data);
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115
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116 // The lifetime of the "target" buffer must be larger than that of HierarchicalZipWriter
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117 static HierarchicalZipWriter* CreateToMemory(std::string& target,
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118 bool isZip64);
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119
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120 void CancelStream();
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122 void Close();
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123
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124 uint64_t GetArchiveSize() const;
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125 };
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126 }