Mercurial > hg > orthanc-stone
annotate Resources/Orthanc/Plugins/Samples/Common/DicomDatasetReader.cpp @ 208:db70f6c5fa4f
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 11 Apr 2018 16:27:09 +0200 |
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rev | line source |
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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) 2017-2018 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 #include "DicomDatasetReader.h" |
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35 |
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36 #include "OrthancPluginException.h" |
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37 |
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38 #include <boost/lexical_cast.hpp> |
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39 |
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40 namespace OrthancPlugins |
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41 { |
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42 // This function is copied-pasted from "../../../Core/Toolbox.cpp", |
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43 // in order to avoid the dependency of plugins against the Orthanc core |
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44 static std::string StripSpaces(const std::string& source) |
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45 { |
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46 size_t first = 0; |
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47 |
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48 while (first < source.length() && |
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49 isspace(source[first])) |
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50 { |
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51 first++; |
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52 } |
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53 |
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54 if (first == source.length()) |
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55 { |
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56 // String containing only spaces |
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57 return ""; |
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58 } |
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59 |
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60 size_t last = source.length(); |
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61 while (last > first && |
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62 isspace(source[last - 1])) |
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63 { |
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64 last--; |
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65 } |
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66 |
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67 assert(first <= last); |
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68 return source.substr(first, last - first); |
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69 } |
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70 |
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71 |
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72 DicomDatasetReader::DicomDatasetReader(const IDicomDataset& dataset) : |
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73 dataset_(dataset) |
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74 { |
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75 } |
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76 |
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77 |
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78 std::string DicomDatasetReader::GetStringValue(const DicomPath& path, |
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79 const std::string& defaultValue) const |
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80 { |
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81 std::string s; |
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82 if (dataset_.GetStringValue(s, path)) |
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83 { |
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84 return s; |
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85 } |
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86 else |
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87 { |
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88 return defaultValue; |
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89 } |
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90 } |
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91 |
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92 |
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93 std::string DicomDatasetReader::GetMandatoryStringValue(const DicomPath& path) const |
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94 { |
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95 std::string s; |
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96 if (dataset_.GetStringValue(s, path)) |
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97 { |
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98 return s; |
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99 } |
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100 else |
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101 { |
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102 ORTHANC_PLUGINS_THROW_EXCEPTION(InexistentTag); |
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103 } |
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104 } |
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105 |
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106 |
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107 template <typename T> |
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108 static bool GetValueInternal(T& target, |
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109 const IDicomDataset& dataset, |
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110 const DicomPath& path) |
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111 { |
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112 try |
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113 { |
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114 std::string s; |
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115 |
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116 if (dataset.GetStringValue(s, path)) |
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117 { |
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118 target = boost::lexical_cast<T>(StripSpaces(s)); |
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119 return true; |
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120 } |
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121 else |
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122 { |
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123 return false; |
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124 } |
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125 } |
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126 catch (boost::bad_lexical_cast&) |
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127 { |
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128 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat); |
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129 } |
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130 } |
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131 |
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132 |
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133 bool DicomDatasetReader::GetIntegerValue(int& target, |
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134 const DicomPath& path) const |
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135 { |
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136 return GetValueInternal<int>(target, dataset_, path); |
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137 } |
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138 |
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139 |
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140 bool DicomDatasetReader::GetUnsignedIntegerValue(unsigned int& target, |
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141 const DicomPath& path) const |
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142 { |
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143 int value; |
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144 |
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145 if (!GetIntegerValue(value, path)) |
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146 { |
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147 return false; |
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148 } |
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149 else if (value >= 0) |
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150 { |
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151 target = static_cast<unsigned int>(value); |
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152 return true; |
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153 } |
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154 else |
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155 { |
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156 ORTHANC_PLUGINS_THROW_EXCEPTION(ParameterOutOfRange); |
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157 } |
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158 } |
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159 |
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160 |
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161 bool DicomDatasetReader::GetFloatValue(float& target, |
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162 const DicomPath& path) const |
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163 { |
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164 return GetValueInternal<float>(target, dataset_, path); |
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165 } |
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166 |
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167 |
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168 bool DicomDatasetReader::GetDoubleValue(double& target, |
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169 const DicomPath& path) const |
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170 { |
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171 return GetValueInternal<double>(target, dataset_, path); |
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172 } |
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173 } |