Mercurial > hg > orthanc

annotate Plugins/Samples/Common/FullOrthancDataset.cpp @ 3387:a48d652f1500

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new function OrthancPluginHttpClientChunkedBody(), new class OrthancPlugins::HttpClient
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 05 Jun 2019 17:17:48 +0200
parents 4e43e67f8ecf
children 94f4a18a79cc
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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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4e43e67f8ecf preparing for 2019
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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 #include "FullOrthancDataset.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 <stdio.h>
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39 #include <cassert>
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40
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41 namespace OrthancPlugins
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42 {
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43 static const Json::Value* AccessTag(const Json::Value& dataset,
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44 const DicomTag& tag)
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45 {
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46 if (dataset.type() != Json::objectValue)
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47 {
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48 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
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49 }
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50
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51 char name[16];
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52 sprintf(name, "%04x,%04x", tag.GetGroup(), tag.GetElement());
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53
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54 if (!dataset.isMember(name))
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55 {
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56 return NULL;
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57 }
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58
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59 const Json::Value& value = dataset[name];
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60 if (value.type() != Json::objectValue ||
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61 !value.isMember("Name") ||
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62 !value.isMember("Type") ||
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63 !value.isMember("Value") ||
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64 value["Name"].type() != Json::stringValue ||
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65 value["Type"].type() != Json::stringValue)
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66 {
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67 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
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68 }
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69
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70 return &value;
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71 }
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72
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73
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74 static const Json::Value& GetSequenceContent(const Json::Value& sequence)
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75 {
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76 assert(sequence.type() == Json::objectValue);
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77 assert(sequence.isMember("Type"));
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78 assert(sequence.isMember("Value"));
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79
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80 const Json::Value& value = sequence["Value"];
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81
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82 if (sequence["Type"].asString() != "Sequence" ||
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83 value.type() != Json::arrayValue)
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84 {
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85 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
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86 }
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87 else
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88 {
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89 return value;
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90 }
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91 }
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92
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93
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94 static bool GetStringInternal(std::string& result,
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95 const Json::Value& tag)
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96 {
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97 assert(tag.type() == Json::objectValue);
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98 assert(tag.isMember("Type"));
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99 assert(tag.isMember("Value"));
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100
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101 const Json::Value& value = tag["Value"];
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102
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103 if (tag["Type"].asString() != "String" ||
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104 value.type() != Json::stringValue)
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105 {
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106 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
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107 }
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108 else
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109 {
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110 result = value.asString();
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111 return true;
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112 }
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113 }
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114
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115
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116 const Json::Value* FullOrthancDataset::LookupPath(const DicomPath& path) const
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117 {
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118 const Json::Value* content = &root_;
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119
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120 for (unsigned int depth = 0; depth < path.GetPrefixLength(); depth++)
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121 {
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122 const Json::Value* sequence = AccessTag(*content, path.GetPrefixTag(depth));
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123 if (sequence == NULL)
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124 {
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125 return NULL;
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126 }
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127
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128 const Json::Value& nextContent = GetSequenceContent(*sequence);
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129
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130 size_t index = path.GetPrefixIndex(depth);
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131 if (index >= nextContent.size())
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132 {
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133 return NULL;
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134 }
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135 else
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136 {
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137 content = &nextContent[static_cast<Json::Value::ArrayIndex>(index)];
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138 }
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139 }
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140
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141 return AccessTag(*content, path.GetFinalTag());
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142 }
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143
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144
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145 void FullOrthancDataset::CheckRoot() const
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146 {
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147 if (root_.type() != Json::objectValue)
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148 {
2237
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149 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
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150 }
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151 }
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152
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153
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154 FullOrthancDataset::FullOrthancDataset(IOrthancConnection& orthanc,
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155 const std::string& uri)
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156 {
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157 IOrthancConnection::RestApiGet(root_, orthanc, uri);
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158 CheckRoot();
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159 }
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160
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161
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162 FullOrthancDataset::FullOrthancDataset(const std::string& content)
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163 {
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164 IOrthancConnection::ParseJson(root_, content);
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165 CheckRoot();
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166 }
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167
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168
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169 FullOrthancDataset::FullOrthancDataset(const void* content,
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170 size_t size)
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171 {
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172 IOrthancConnection::ParseJson(root_, content, size);
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173 CheckRoot();
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174 }
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175
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176
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177 FullOrthancDataset::FullOrthancDataset(const Json::Value& root) :
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178 root_(root)
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179 {
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180 CheckRoot();
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181 }
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182
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183
2179
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184 bool FullOrthancDataset::GetStringValue(std::string& result,
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185 const DicomPath& path) const
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186 {
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187 const Json::Value* value = LookupPath(path);
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188
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189 if (value == NULL)
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190 {
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191 return false;
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192 }
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193 else
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194 {
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195 return GetStringInternal(result, *value);
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196 }
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197 }
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198
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199
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200 bool FullOrthancDataset::GetSequenceSize(size_t& size,
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201 const DicomPath& path) const
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202 {
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203 const Json::Value* sequence = LookupPath(path);
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204
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205 if (sequence == NULL)
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206 {
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207 return false;
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208 }
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209 else
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210 {
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211 size = GetSequenceContent(*sequence).size();
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212 return true;
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213 }
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214 }
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215 }