Mercurial > hg > orthanc

annotate OrthancServer/Sources/Search/DatabaseLookup.cpp @ 4870:43e613a7756b

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Jan 2022 11:15:42 +0100
parents 7053502fbf97
children 6eff25f70121
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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) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU General Public License as
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10 * published by the Free Software Foundation, either version 3 of the
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11 * License, or (at your option) any later version.
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12 *
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13 * In addition, as a special exception, the copyright holders of this
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14 * program give permission to link the code of its release with the
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15 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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16 * that use the same license as the "OpenSSL" library), and distribute
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17 * the linked executables. You must obey the GNU General Public License
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18 * in all respects for all of the code used other than "OpenSSL". If you
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19 * modify file(s) with this exception, you may extend this exception to
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20 * your version of the file(s), but you are not obligated to do so. If
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21 * you do not wish to do so, delete this exception statement from your
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22 * version. If you delete this exception statement from all source files
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23 * in the program, then also delete it here.
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24 *
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25 * This program is distributed in the hope that it will be useful, but
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26 * WITHOUT ANY WARRANTY; without even the implied warranty of
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27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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28 * General Public License for more details.
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29 *
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30 * You should have received a copy of the GNU General Public License
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31 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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32 **/
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33
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34
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35 #include "../PrecompiledHeadersServer.h"
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36 #include "DatabaseLookup.h"
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37
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38 #include "../ServerToolbox.h"
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39 #include "../../../OrthancFramework/Sources/DicomParsing/FromDcmtkBridge.h"
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40 #include "../../../OrthancFramework/Sources/DicomParsing/ToDcmtkBridge.h"
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41 #include "../../../OrthancFramework/Sources/OrthancException.h"
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42 #include "../../../OrthancFramework/Sources/Toolbox.h"
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43
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44 #include <boost/lexical_cast.hpp>
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45
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46
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47 namespace Orthanc
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48 {
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49 DatabaseLookup::~DatabaseLookup()
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50 {
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51 for (size_t i = 0; i < constraints_.size(); i++)
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52 {
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53 assert(constraints_[i] != NULL);
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54 delete constraints_[i];
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55 }
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56 }
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57
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58
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59 const DicomTagConstraint& DatabaseLookup::GetConstraint(size_t index) const
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60 {
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61 if (index >= constraints_.size())
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62 {
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63 throw OrthancException(ErrorCode_ParameterOutOfRange);
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64 }
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65 else
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66 {
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67 assert(constraints_[index] != NULL);
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68 return *constraints_[index];
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69 }
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70 }
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71
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72
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73 void DatabaseLookup::AddConstraintInternal(DicomTagConstraint* constraint)
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74 {
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75 if (constraint == NULL)
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76 {
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77 throw OrthancException(ErrorCode_NullPointer);
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78 }
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79 else
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80 {
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81 constraints_.push_back(constraint);
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82 }
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83 }
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84
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85
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86 bool DatabaseLookup::IsMatch(const DicomMap& value) const
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87 {
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88 for (size_t i = 0; i < constraints_.size(); i++)
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89 {
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90 assert(constraints_[i] != NULL);
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91 if (!constraints_[i]->IsMatch(value))
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92 {
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93 return false;
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94 }
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95 }
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96
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97 return true;
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98 }
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99
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100
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101 bool DatabaseLookup::IsMatch(DcmItem& item,
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102 Encoding encoding,
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103 bool hasCodeExtensions) const
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104 {
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105 for (size_t i = 0; i < constraints_.size(); i++)
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106 {
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107 assert(constraints_[i] != NULL);
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108
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109 const bool isOptionalConstraint = !constraints_[i]->IsMandatory();
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110 const DcmTagKey tag = ToDcmtkBridge::Convert(constraints_[i]->GetTag());
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111
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112 DcmElement* element = NULL;
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113 if (!item.findAndGetElement(tag, element).good())
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114 {
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115 return isOptionalConstraint;
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116 }
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117
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118 if (element == NULL)
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119 {
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120 return false;
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121 }
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122
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123 std::set<DicomTag> ignoreTagLength;
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124 std::unique_ptr<DicomValue> value(FromDcmtkBridge::ConvertLeafElement
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125 (*element, DicomToJsonFlags_None,
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126 0, encoding, hasCodeExtensions, ignoreTagLength));
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127
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128 // WARNING: Also modify "HierarchicalMatcher::Setup()" if modifying this code
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129 if (value.get() == NULL ||
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130 value->IsNull())
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131 {
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132 return isOptionalConstraint;
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133 }
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134 else if (value->IsBinary() ||
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135 !constraints_[i]->IsMatch(value->GetContent()))
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136 {
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137 return false;
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138 }
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139 }
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140
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141 return true;
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142 }
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143
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144
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145 void DatabaseLookup::AddDicomConstraintInternal(const DicomTag& tag,
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146 ValueRepresentation vr,
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147 const std::string& dicomQuery,
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148 bool caseSensitive,
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149 bool mandatoryTag)
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150 {
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151 if ((vr == ValueRepresentation_Date ||
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152 vr == ValueRepresentation_DateTime ||
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153 vr == ValueRepresentation_Time) &&
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154 dicomQuery.find('-') != std::string::npos)
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155 {
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156 /**
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157 * Range matching is only defined for TM, DA and DT value
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158 * representations. This code fixes issues 35 and 37.
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159 *
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160 * Reference: "Range matching is not defined for types of
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161 * Attributes other than dates and times", DICOM PS 3.4,
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162 * C.2.2.2.5 ("Range Matching").
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163 **/
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164 size_t separator = dicomQuery.find('-');
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165 std::string lower = dicomQuery.substr(0, separator);
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166 std::string upper = dicomQuery.substr(separator + 1);
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167
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168 if (!lower.empty())
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169 {
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170 AddConstraintInternal(new DicomTagConstraint
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171 (tag, ConstraintType_GreaterOrEqual, lower, caseSensitive, mandatoryTag));
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172 }
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173
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174 if (!upper.empty())
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175 {
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176 AddConstraintInternal(new DicomTagConstraint
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177 (tag, ConstraintType_SmallerOrEqual, upper, caseSensitive, mandatoryTag));
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178 }
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179 }
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180 else if (dicomQuery.find('\\') != std::string::npos)
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181 {
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182 DicomTag fixedTag(tag);
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183
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184 std::unique_ptr<DicomTagConstraint> constraint
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185 (new DicomTagConstraint(fixedTag, ConstraintType_List, caseSensitive, mandatoryTag));
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186
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187 std::vector<std::string> items;
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188 Toolbox::TokenizeString(items, dicomQuery, '\\');
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189
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190 for (size_t i = 0; i < items.size(); i++)
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191 {
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192 constraint->AddValue(items[i]);
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193 }
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194
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195 AddConstraintInternal(constraint.release());
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196 }
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197 else if (
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198 /**
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199 * New test in Orthanc 1.6.0: Wild card matching is only allowed
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200 * for a subset of value representations: AE, CS, LO, LT, PN,
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201 * SH, ST, UC, UR, UT.
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202 * http://dicom.nema.org/medical/dicom/2019e/output/chtml/part04/sect_C.2.2.2.4.html
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203 **/
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204 (vr == ValueRepresentation_ApplicationEntity || // AE
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205 vr == ValueRepresentation_CodeString || // CS
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206 vr == ValueRepresentation_LongString || // LO
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207 vr == ValueRepresentation_LongText || // LT
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208 vr == ValueRepresentation_PersonName || // PN
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209 vr == ValueRepresentation_ShortString || // SH
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210 vr == ValueRepresentation_ShortText || // ST
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211 vr == ValueRepresentation_UnlimitedCharacters || // UC
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212 vr == ValueRepresentation_UniversalResource || // UR
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213 vr == ValueRepresentation_UnlimitedText // UT
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214 ) &&
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215 (dicomQuery.find('*') != std::string::npos ||
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216 dicomQuery.find('?') != std::string::npos))
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217 {
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218 AddConstraintInternal(new DicomTagConstraint
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219 (tag, ConstraintType_Wildcard, dicomQuery, caseSensitive, mandatoryTag));
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220 }
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221 else
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222 {
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223 AddConstraintInternal(new DicomTagConstraint
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224 (tag, ConstraintType_Equal, dicomQuery, caseSensitive, mandatoryTag));
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225 }
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226 }
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227
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228
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229 void DatabaseLookup::AddDicomConstraint(const DicomTag& tag,
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230 const std::string& dicomQuery,
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231 bool caseSensitivePN,
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232 bool mandatoryTag)
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233 {
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234 ValueRepresentation vr = FromDcmtkBridge::LookupValueRepresentation(tag);
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235
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236 if (vr == ValueRepresentation_Sequence)
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237 {
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238 throw OrthancException(ErrorCode_ParameterOutOfRange);
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239 }
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240
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241 /**
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242 * DICOM specifies that searches must always be case sensitive,
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243 * except for tags with a PN value representation. For PN, Orthanc
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244 * uses the configuration option "CaseSensitivePN" to decide
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245 * whether matching is case-sensitive or case-insensitive.
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246 *
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247 * Reference: DICOM PS 3.4
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248 * - C.2.2.2.1 ("Single Value Matching")
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249 * - C.2.2.2.4 ("Wild Card Matching")
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250 * http://medical.nema.org/Dicom/2011/11_04pu.pdf
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251 *
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252 * "Except for Attributes with a PN Value Representation, only
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253 * entities with values which match exactly the value specified in the
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254 * request shall match. This matching is case-sensitive, i.e.,
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255 * sensitive to the exact encoding of the key attribute value in
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256 * character sets where a letter may have multiple encodings (e.g.,
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257 * based on its case, its position in a word, or whether it is
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258 * accented)
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259 *
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260 * For Attributes with a PN Value Representation (e.g., Patient Name
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261 * (0010,0010)), an application may perform literal matching that is
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262 * either case-sensitive, or that is insensitive to some or all
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263 * aspects of case, position, accent, or other character encoding
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264 * variants."
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265 *
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266 * (0008,0018) UI SOPInstanceUID => Case-sensitive
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267 * (0008,0050) SH AccessionNumber => Case-sensitive
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268 * (0010,0020) LO PatientID => Case-sensitive
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269 * (0020,000D) UI StudyInstanceUID => Case-sensitive
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270 * (0020,000E) UI SeriesInstanceUID => Case-sensitive
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271 **/
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272
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273 if (vr == ValueRepresentation_PersonName)
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274 {
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275 AddDicomConstraintInternal(tag, vr, dicomQuery, caseSensitivePN, mandatoryTag);
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276 }
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277 else
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278 {
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279 AddDicomConstraintInternal(tag, vr, dicomQuery, true /* case sensitive */, mandatoryTag);
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280 }
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281 }
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282
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283
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284 void DatabaseLookup::AddRestConstraint(const DicomTag& tag,
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285 const std::string& dicomQuery,
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286 bool caseSensitive,
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287 bool mandatoryTag)
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288 {
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289 AddDicomConstraintInternal(tag, FromDcmtkBridge::LookupValueRepresentation(tag),
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290 dicomQuery, caseSensitive, mandatoryTag);
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291 }
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292
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293
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294 bool DatabaseLookup::HasOnlyMainDicomTags() const
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295 {
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296 std::set<DicomTag> mainTags;
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297 DicomMap::GetMainDicomTags(mainTags);
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298
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299 for (size_t i = 0; i < constraints_.size(); i++)
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300 {
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301 assert(constraints_[i] != NULL);
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302
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303 if (mainTags.find(constraints_[i]->GetTag()) == mainTags.end())
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304 {
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305 // This is not a main DICOM tag
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306 return false;
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307 }
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308 }
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309
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310 return true;
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311 }
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312
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313
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314 std::string DatabaseLookup::Format() const
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315 {
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316 std::string s;
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317
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318 for (size_t i = 0; i < constraints_.size(); i++)
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319 {
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320 assert(constraints_[i] != NULL);
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321 s += ("Contraint " + boost::lexical_cast<std::string>(i) + ": " +
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322 constraints_[i]->Format() + "\n");
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323 }
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324
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325 return s;
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326 }
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327
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328
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329 bool DatabaseLookup::HasTag(const DicomTag& tag) const
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330 {
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331 for (size_t i = 0; i < constraints_.size(); i++)
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332 {
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333 assert(constraints_[i] != NULL);
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334 if (constraints_[i]->GetTag() == tag)
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335 {
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336 return true;
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337 }
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338 }
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339
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340 return false;
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341 }
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342 }