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annotate OrthancServer/OrthancFindRequestHandler.cpp @ 1648:a0a4fa28624c

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fix
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 25 Sep 2015 11:33:55 +0200
parents bd1889029cbb
children ec66a16aa398
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, 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 #include "PrecompiledHeadersServer.h"
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34 #include "OrthancFindRequestHandler.h"
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35
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36 #include "../Core/Logging.h"
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37 #include "../Core/DicomFormat/DicomArray.h"
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38 #include "ServerToolbox.h"
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39 #include "OrthancInitialization.h"
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40 #include "FromDcmtkBridge.h"
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41
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42 #include "ResourceFinder.h"
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43 #include "DicomFindQuery.h"
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44
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45 #include <boost/regex.hpp>
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46
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47
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48 namespace Orthanc
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49 {
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50 static void AddAnswer(DicomFindAnswers& answers,
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51 const Json::Value& resource,
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52 const DicomArray& query)
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53 {
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54 DicomMap result;
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55
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56 for (size_t i = 0; i < query.GetSize(); i++)
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57 {
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58 // Fix issue 30 (QR response missing "Query/Retrieve Level" (008,0052))
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59 if (query.GetElement(i).GetTag() == DICOM_TAG_QUERY_RETRIEVE_LEVEL)
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60 {
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61 result.SetValue(query.GetElement(i).GetTag(), query.GetElement(i).GetValue());
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62 }
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63 else if (query.GetElement(i).GetTag() == DICOM_TAG_SPECIFIC_CHARACTER_SET)
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64 {
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65 }
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66 else
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67 {
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68 std::string tag = query.GetElement(i).GetTag().Format();
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69 std::string value;
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70 if (resource.isMember(tag))
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71 {
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72 value = resource.get(tag, Json::arrayValue).get("Value", "").asString();
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73 result.SetValue(query.GetElement(i).GetTag(), value);
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74 }
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75 else
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76 {
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77 result.SetValue(query.GetElement(i).GetTag(), "");
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78 }
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79 }
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80 }
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81
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82 if (result.GetSize() == 0)
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83 {
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84 LOG(WARNING) << "The C-FIND request does not return any DICOM tag";
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85 }
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86 else
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87 {
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88 answers.Add(result);
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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 namespace
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94 {
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95 class CFindQuery : public DicomFindQuery
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96 {
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97 private:
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98 DicomFindAnswers& answers_;
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99 ServerIndex& index_;
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100 const DicomArray& query_;
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101 bool hasModalitiesInStudy_;
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102 std::set<std::string> modalitiesInStudy_;
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103
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104 public:
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105 CFindQuery(DicomFindAnswers& answers,
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106 ServerIndex& index,
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107 const DicomArray& query) :
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108 answers_(answers),
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109 index_(index),
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110 query_(query),
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111 hasModalitiesInStudy_(false)
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112 {
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113 }
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114
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115 void SetModalitiesInStudy(const std::string& value)
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116 {
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117 hasModalitiesInStudy_ = true;
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118
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119 std::vector<std::string> tmp;
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120 Toolbox::TokenizeString(tmp, value, '\\');
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121
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122 for (size_t i = 0; i < tmp.size(); i++)
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123 {
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124 modalitiesInStudy_.insert(tmp[i]);
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125 }
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126 }
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127
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128 virtual bool HasMainDicomTagsFilter(ResourceType level) const
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129 {
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130 if (DicomFindQuery::HasMainDicomTagsFilter(level))
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131 {
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132 return true;
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133 }
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134
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135 return (level == ResourceType_Study &&
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136 hasModalitiesInStudy_);
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137 }
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138
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139 virtual bool FilterMainDicomTags(const std::string& resourceId,
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140 ResourceType level,
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141 const DicomMap& mainTags) const
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142 {
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143 if (!DicomFindQuery::FilterMainDicomTags(resourceId, level, mainTags))
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144 {
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145 return false;
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146 }
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147
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148 if (level != ResourceType_Study ||
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149 !hasModalitiesInStudy_)
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150 {
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151 return true;
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152 }
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153
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154 try
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155 {
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156 // We are considering a single study, and the
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157 // "MODALITIES_IN_STUDY" tag is set in the C-Find. Check
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158 // whether one of its child series matches one of the
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159 // modalities.
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160
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161 Json::Value study;
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162 if (index_.LookupResource(study, resourceId, ResourceType_Study))
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163 {
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164 // Loop over the series of the considered study.
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165 for (Json::Value::ArrayIndex j = 0; j < study["Series"].size(); j++)
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166 {
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167 Json::Value series;
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168 if (index_.LookupResource(series, study["Series"][j].asString(), ResourceType_Series))
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169 {
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170 // Get the modality of this series
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171 if (series["MainDicomTags"].isMember("Modality"))
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172 {
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173 std::string modality = series["MainDicomTags"]["Modality"].asString();
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174 if (modalitiesInStudy_.find(modality) != modalitiesInStudy_.end())
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175 {
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176 // This series of the considered study matches one
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177 // of the required modalities. Take the study into
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178 // consideration for future filtering.
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179 return true;
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180 }
612
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181 }
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182 }
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183 }
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184 }
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185 }
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186 catch (OrthancException&)
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187 {
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188 // This resource has probably been deleted during the find request
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189 }
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190
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191 return false;
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192 }
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193
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194 virtual bool HasInstanceFilter() const
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195 {
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196 return true;
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197 }
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198
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199 virtual bool FilterInstance(const std::string& instanceId,
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200 const Json::Value& content) const
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201 {
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202 bool ok = DicomFindQuery::FilterInstance(instanceId, content);
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203
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204 if (ok)
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205 {
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206 // Add this resource to the answers
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207 AddAnswer(answers_, content, query_);
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208 }
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209
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210 return ok;
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211 }
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212 };
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213 }
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214
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215
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216
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217 bool OrthancFindRequestHandler::Handle(DicomFindAnswers& answers,
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218 const DicomMap& input,
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219 const std::string& remoteIp,
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220 const std::string& remoteAet)
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221 {
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222 /**
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223 * Ensure that the calling modality is known to Orthanc.
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224 **/
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225
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226 RemoteModalityParameters modality;
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227
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228 if (!Configuration::LookupDicomModalityUsingAETitle(modality, remoteAet))
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229 {
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230 throw OrthancException(ErrorCode_UnknownModality);
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231 }
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232
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233 // ModalityManufacturer manufacturer = modality.GetManufacturer();
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234
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235 bool caseSensitivePN = Configuration::GetGlobalBoolParameter("CaseSensitivePN", false);
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236
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237
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238 /**
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239 * Retrieve the query level.
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240 **/
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241
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242 const DicomValue* levelTmp = input.TestAndGetValue(DICOM_TAG_QUERY_RETRIEVE_LEVEL);
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243 if (levelTmp == NULL)
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244 {
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245 throw OrthancException(ErrorCode_BadRequest);
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246 }
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247
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248 ResourceType level = StringToResourceType(levelTmp->AsString().c_str());
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249
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250 if (level != ResourceType_Patient &&
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251 level != ResourceType_Study &&
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252 level != ResourceType_Series &&
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253 level != ResourceType_Instance)
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254 {
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255 throw OrthancException(ErrorCode_NotImplemented);
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256 }
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257
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258
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259 DicomArray query(input);
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260 LOG(INFO) << "DICOM C-Find request at level: " << EnumerationToString(level);
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261
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262 for (size_t i = 0; i < query.GetSize(); i++)
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263 {
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264 if (!query.GetElement(i).GetValue().IsNull())
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265 {
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266 LOG(INFO) << " " << query.GetElement(i).GetTag()
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267 << " " << FromDcmtkBridge::GetName(query.GetElement(i).GetTag())
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268 << " = " << query.GetElement(i).GetValue().AsString();
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269 }
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270 }
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271
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272
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273 /**
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274 * Build up the query object.
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275 **/
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276
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277 CFindQuery findQuery(answers, context_.GetIndex(), query);
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278 findQuery.SetLevel(level);
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279
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280 for (size_t i = 0; i < query.GetSize(); i++)
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281 {
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282 const DicomTag tag = query.GetElement(i).GetTag();
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283
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284 if (query.GetElement(i).GetValue().IsNull() ||
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285 tag == DICOM_TAG_QUERY_RETRIEVE_LEVEL ||
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286 tag == DICOM_TAG_SPECIFIC_CHARACTER_SET)
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287 {
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288 continue;
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289 }
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290
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291 std::string value = query.GetElement(i).GetValue().AsString();
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292 if (value.size() == 0)
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293 {
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294 // An empty string corresponds to a "*" wildcard constraint, so we ignore it
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295 continue;
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296 }
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297
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298 if (tag == DICOM_TAG_MODALITIES_IN_STUDY)
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299 {
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300 findQuery.SetModalitiesInStudy(value);
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301 }
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302 else
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303 {
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304 findQuery.SetConstraint(tag, value, caseSensitivePN);
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305 }
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306 }
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307
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308
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309 /**
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310 * Run the query.
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311 **/
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312
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313 ResourceFinder finder(context_);
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314
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315 switch (level)
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316 {
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317 case ResourceType_Patient:
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318 case ResourceType_Study:
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319 case ResourceType_Series:
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320 finder.SetMaxResults(maxResults_);
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321 break;
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322
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323 case ResourceType_Instance:
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324 finder.SetMaxResults(maxInstances_);
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325 break;
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326
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327 default:
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328 throw OrthancException(ErrorCode_InternalError);
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329 }
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330
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331 std::list<std::string> tmp;
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332 bool finished = finder.Apply(tmp, findQuery);
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333
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334 LOG(INFO) << "Number of matching resources: " << tmp.size();
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335
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336 return finished;
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337 }
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338 }