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3202
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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) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #if !defined(ORTHANC_ENABLE_PUGIXML)
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37 # error Macro ORTHANC_ENABLE_PUGIXML must be defined to use this file
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38 #endif
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39
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40 #if ORTHANC_ENABLE_PUGIXML == 1
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41 # include <pugixml.hpp>
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42 #endif
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43
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44 #include "ITagVisitor.h"
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45
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46 #include <json/value.h>
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47
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48
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49 namespace Orthanc
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50 {
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51 class DicomWebJsonVisitor : public ITagVisitor
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52 {
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53 public:
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54 enum BinaryMode
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55 {
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56 BinaryMode_Ignore,
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57 BinaryMode_BulkDataUri,
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58 BinaryMode_InlineBinary
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59 };
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60
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61 class IBinaryFormatter : public boost::noncopyable
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62 {
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63 public:
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64 virtual ~IBinaryFormatter()
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65 {
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66 }
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67
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68 virtual BinaryMode Format(std::string& bulkDataUri,
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69 const std::vector<DicomTag>& parentTags,
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70 const std::vector<size_t>& parentIndexes,
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71 const DicomTag& tag,
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72 ValueRepresentation vr) = 0;
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73 };
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74
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75 private:
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76 Json::Value result_;
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77 IBinaryFormatter *formatter_;
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78
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79 static std::string FormatTag(const DicomTag& tag);
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80
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81 Json::Value& CreateNode(const std::vector<DicomTag>& parentTags,
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82 const std::vector<size_t>& parentIndexes,
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83 const DicomTag& tag);
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84
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85 static Json::Value FormatInteger(int64_t value);
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86
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87 static Json::Value FormatDouble(double value);
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88
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89 public:
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90 DicomWebJsonVisitor() :
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91 formatter_(NULL)
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92 {
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93 Clear();
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94 }
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95
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96 void SetFormatter(IBinaryFormatter& formatter)
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97 {
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98 formatter_ = &formatter;
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99 }
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100
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101 void Clear()
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102 {
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103 result_ = Json::objectValue;
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104 }
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105
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106 const Json::Value& GetResult() const
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107 {
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108 return result_;
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109 }
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110
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111 #if ORTHANC_ENABLE_PUGIXML == 1
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112 void FormatXml(pugi::xml_document& target) const;
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113 #endif
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114
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115 virtual void VisitNotSupported(const std::vector<DicomTag>& parentTags,
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116 const std::vector<size_t>& parentIndexes,
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117 const DicomTag& tag,
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118 ValueRepresentation vr)
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119 ORTHANC_OVERRIDE
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120 {
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121 }
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122
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123 virtual void VisitEmptySequence(const std::vector<DicomTag>& parentTags,
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124 const std::vector<size_t>& parentIndexes,
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125 const DicomTag& tag)
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126 ORTHANC_OVERRIDE;
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127
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128 virtual void VisitBinary(const std::vector<DicomTag>& parentTags,
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129 const std::vector<size_t>& parentIndexes,
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130 const DicomTag& tag,
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131 ValueRepresentation vr,
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132 const void* data,
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133 size_t size)
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134 ORTHANC_OVERRIDE;
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135
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136 virtual void VisitIntegers(const std::vector<DicomTag>& parentTags,
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137 const std::vector<size_t>& parentIndexes,
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138 const DicomTag& tag,
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139 ValueRepresentation vr,
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140 const std::vector<int64_t>& values)
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141 ORTHANC_OVERRIDE;
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142
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143 virtual void VisitDoubles(const std::vector<DicomTag>& parentTags,
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144 const std::vector<size_t>& parentIndexes,
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145 const DicomTag& tag,
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146 ValueRepresentation vr,
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147 const std::vector<double>& values)
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148 ORTHANC_OVERRIDE;
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149
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150 virtual void VisitAttributes(const std::vector<DicomTag>& parentTags,
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151 const std::vector<size_t>& parentIndexes,
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152 const DicomTag& tag,
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153 const std::vector<DicomTag>& values)
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154 ORTHANC_OVERRIDE;
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155
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156 virtual Action VisitString(std::string& newValue,
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157 const std::vector<DicomTag>& parentTags,
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158 const std::vector<size_t>& parentIndexes,
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159 const DicomTag& tag,
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160 ValueRepresentation vr,
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161 const std::string& value)
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162 ORTHANC_OVERRIDE;
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163 };
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164 }
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