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annotate Core/Compression/HierarchicalZipWriter.h @ 568:3f27814104f7 laaw

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author jodogne
date Wed, 25 Sep 2013 12:45:33 +0200
parents bdd72233b105
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2013 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #pragma once
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34
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35 #include "ZipWriter.h"
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36
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37 #include <map>
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38 #include <list>
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39 #include <boost/lexical_cast.hpp>
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40
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41 namespace Orthanc
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42 {
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43 class HierarchicalZipWriter
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44 {
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45 #if ORTHANC_BUILD_UNIT_TESTS == 1
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46 FRIEND_TEST(HierarchicalZipWriter, Index);
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47 FRIEND_TEST(HierarchicalZipWriter, Filenames);
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48 #endif
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49
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50 private:
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51 class Index
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52 {
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53 private:
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54 struct Directory
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55 {
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56 typedef std::map<std::string, unsigned int> Content;
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57
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58 std::string name_;
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59 Content content_;
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60 };
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61
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62 typedef std::list<Directory*> Stack;
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63
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64 Stack stack_;
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65
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66 std::string GetCurrentDirectoryPath() const;
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67
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68 std::string EnsureUniqueFilename(const char* filename);
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69
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70 public:
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71 Index();
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72
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73 ~Index();
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74
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75 bool IsRoot() const
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76 {
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77 return stack_.size() == 1;
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78 }
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79
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80 std::string OpenFile(const char* name);
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81
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82 void OpenDirectory(const char* name);
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83
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84 void CloseDirectory();
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85
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86 static std::string KeepAlphanumeric(const std::string& source);
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87 };
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88
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89 Index indexer_;
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90 ZipWriter writer_;
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91
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92 public:
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93 HierarchicalZipWriter(const char* path);
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94
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95 ~HierarchicalZipWriter();
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96
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97 void SetCompressionLevel(uint8_t level)
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98 {
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99 writer_.SetCompressionLevel(level);
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100 }
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101
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102 uint8_t GetCompressionLevel() const
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103 {
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104 return writer_.GetCompressionLevel();
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105 }
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106
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107 void OpenFile(const char* name);
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108
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109 void OpenDirectory(const char* name);
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110
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111 void CloseDirectory();
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112
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113 void Write(const char* data, size_t length)
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114 {
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115 writer_.Write(data, length);
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116 }
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117
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118 void Write(const std::string& data)
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119 {
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120 writer_.Write(data);
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121 }
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122 };
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123 }