Mercurial > hg > orthanc
annotate OrthancServer/Search/DatabaseLookup.cpp @ 3073:0e9d1731b1b0 db-changes
refactoring to reuse DatabaseConstraint in separate projects
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 02 Jan 2019 13:44:18 +0100 |
parents | 1b05fd072c57 |
children | 683d572424b6 |
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) 2017-2019 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 "../PrecompiledHeadersServer.h" |
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35 #include "DatabaseLookup.h" |
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36 |
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37 #include "../ServerToolbox.h" |
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38 #include "../../Core/DicomParsing/FromDcmtkBridge.h" |
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39 #include "../../Core/DicomParsing/ToDcmtkBridge.h" |
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40 |
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41 namespace Orthanc |
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42 { |
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43 DatabaseLookup::~DatabaseLookup() |
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44 { |
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45 for (size_t i = 0; i < constraints_.size(); i++) |
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46 { |
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47 assert(constraints_[i] != NULL); |
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48 delete constraints_[i]; |
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49 } |
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50 } |
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51 |
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52 |
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53 const DicomTagConstraint& DatabaseLookup::GetConstraint(size_t index) const |
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54 { |
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55 if (index >= constraints_.size()) |
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56 { |
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57 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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58 } |
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59 else |
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60 { |
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61 assert(constraints_[index] != NULL); |
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62 return *constraints_[index]; |
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63 } |
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64 } |
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65 |
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66 |
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67 void DatabaseLookup::AddConstraint(DicomTagConstraint* constraint) |
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68 { |
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69 if (constraint == NULL) |
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70 { |
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71 throw OrthancException(ErrorCode_NullPointer); |
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72 } |
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73 else |
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74 { |
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75 constraints_.push_back(constraint); |
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76 } |
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77 } |
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78 |
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79 |
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80 bool DatabaseLookup::IsMatch(const DicomMap& value) const |
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81 { |
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82 for (size_t i = 0; i < constraints_.size(); i++) |
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83 { |
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84 assert(constraints_[i] != NULL); |
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85 if (!constraints_[i]->IsMatch(value)) |
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86 { |
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87 return false; |
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88 } |
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89 } |
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90 |
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91 return true; |
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92 } |
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93 |
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94 |
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95 bool DatabaseLookup::IsMatch(DcmItem& item, |
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96 Encoding encoding) const |
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97 { |
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98 for (size_t i = 0; i < constraints_.size(); i++) |
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99 { |
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100 assert(constraints_[i] != NULL); |
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101 |
3072 | 102 const bool isOptionalConstraint = !constraints_[i]->IsMandatory(); |
103 const DcmTagKey tag = ToDcmtkBridge::Convert(constraints_[i]->GetTag()); | |
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104 |
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105 DcmElement* element = NULL; |
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106 if (!item.findAndGetElement(tag, element).good()) |
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107 { |
3072 | 108 return isOptionalConstraint; |
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109 } |
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110 |
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111 if (element == NULL) |
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112 { |
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113 return false; |
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114 } |
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115 |
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116 std::set<DicomTag> ignoreTagLength; |
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117 std::auto_ptr<DicomValue> value(FromDcmtkBridge::ConvertLeafElement |
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118 (*element, DicomToJsonFlags_None, |
3072 | 119 0, encoding, ignoreTagLength)); |
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120 |
3072 | 121 // WARNING: Also modify "HierarchicalMatcher::Setup()" if modifying this code |
122 if (value.get() == NULL || | |
123 value->IsNull()) | |
124 { | |
125 return isOptionalConstraint; | |
126 } | |
127 else if (value->IsBinary() || | |
128 !constraints_[i]->IsMatch(value->GetContent())) | |
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129 { |
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130 return false; |
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131 } |
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132 } |
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133 |
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134 return true; |
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135 } |
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136 |
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137 |
3027 | 138 void DatabaseLookup::AddDicomConstraintInternal(const DicomTag& tag, |
139 ValueRepresentation vr, | |
140 const std::string& dicomQuery, | |
141 bool caseSensitive, | |
142 bool mandatoryTag) | |
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143 { |
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144 if ((vr == ValueRepresentation_Date || |
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145 vr == ValueRepresentation_DateTime || |
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146 vr == ValueRepresentation_Time) && |
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147 dicomQuery.find('-') != std::string::npos) |
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148 { |
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149 /** |
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150 * Range matching is only defined for TM, DA and DT value |
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151 * representations. This code fixes issues 35 and 37. |
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152 * |
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153 * Reference: "Range matching is not defined for types of |
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154 * Attributes other than dates and times", DICOM PS 3.4, |
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155 * C.2.2.2.5 ("Range Matching"). |
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156 **/ |
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157 size_t separator = dicomQuery.find('-'); |
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158 std::string lower = dicomQuery.substr(0, separator); |
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159 std::string upper = dicomQuery.substr(separator + 1); |
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160 |
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161 if (!lower.empty()) |
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162 { |
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163 AddConstraint(new DicomTagConstraint |
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164 (tag, ConstraintType_GreaterOrEqual, lower, caseSensitive, mandatoryTag)); |
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165 } |
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166 |
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167 if (!upper.empty()) |
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168 { |
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169 AddConstraint(new DicomTagConstraint |
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170 (tag, ConstraintType_SmallerOrEqual, upper, caseSensitive, mandatoryTag)); |
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171 } |
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172 } |
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173 else if (dicomQuery.find('\\') != std::string::npos) |
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174 { |
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175 DicomTag fixedTag(tag); |
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176 |
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177 if (tag == DICOM_TAG_MODALITIES_IN_STUDY) |
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178 { |
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179 // http://www.itk.org/Wiki/DICOM_QueryRetrieve_Explained |
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180 // http://dicomiseasy.blogspot.be/2012/01/dicom-queryretrieve-part-i.html |
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181 fixedTag = DICOM_TAG_MODALITY; |
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182 } |
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183 |
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184 std::auto_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 AddConstraint(constraint.release()); |
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196 } |
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197 else if (dicomQuery.find('*') != std::string::npos || |
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198 dicomQuery.find('?') != std::string::npos) |
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199 { |
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200 AddConstraint(new DicomTagConstraint |
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201 (tag, ConstraintType_Wildcard, dicomQuery, caseSensitive, mandatoryTag)); |
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202 } |
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203 else |
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204 { |
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205 AddConstraint(new DicomTagConstraint |
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206 (tag, ConstraintType_Equal, dicomQuery, caseSensitive, mandatoryTag)); |
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207 } |
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208 } |
3027 | 209 |
210 | |
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211 void DatabaseLookup::AddDicomConstraint(const DicomTag& tag, |
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212 const std::string& dicomQuery, |
3027 | 213 bool caseSensitivePN, |
214 bool mandatoryTag) | |
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215 { |
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216 ValueRepresentation vr = FromDcmtkBridge::LookupValueRepresentation(tag); |
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217 |
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218 if (vr == ValueRepresentation_Sequence) |
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219 { |
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220 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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221 } |
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222 |
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223 /** |
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224 * DICOM specifies that searches must always be case sensitive, |
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225 * except for tags with a PN value representation. For PN, Orthanc |
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226 * uses the configuration option "CaseSensitivePN" to decide |
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227 * whether matching is case-sensitive or case-insensitive. |
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228 * |
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229 * Reference: DICOM PS 3.4 |
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230 * - C.2.2.2.1 ("Single Value Matching") |
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231 * - C.2.2.2.4 ("Wild Card Matching") |
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232 * http://medical.nema.org/Dicom/2011/11_04pu.pdf |
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233 * |
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234 * "Except for Attributes with a PN Value Representation, only |
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235 * entities with values which match exactly the value specified in the |
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236 * request shall match. This matching is case-sensitive, i.e., |
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237 * sensitive to the exact encoding of the key attribute value in |
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238 * character sets where a letter may have multiple encodings (e.g., |
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239 * based on its case, its position in a word, or whether it is |
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240 * accented) |
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241 * |
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242 * For Attributes with a PN Value Representation (e.g., Patient Name |
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243 * (0010,0010)), an application may perform literal matching that is |
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244 * either case-sensitive, or that is insensitive to some or all |
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245 * aspects of case, position, accent, or other character encoding |
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246 * variants." |
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247 * |
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248 * (0008,0018) UI SOPInstanceUID => Case-sensitive |
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249 * (0008,0050) SH AccessionNumber => Case-sensitive |
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250 * (0010,0020) LO PatientID => Case-sensitive |
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251 * (0020,000D) UI StudyInstanceUID => Case-sensitive |
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252 * (0020,000E) UI SeriesInstanceUID => Case-sensitive |
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253 **/ |
3027 | 254 |
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255 if (vr == ValueRepresentation_PersonName) |
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256 { |
3027 | 257 AddDicomConstraintInternal(tag, vr, dicomQuery, caseSensitivePN, mandatoryTag); |
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258 } |
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259 else |
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260 { |
3027 | 261 AddDicomConstraintInternal(tag, vr, dicomQuery, true /* case sensitive */, mandatoryTag); |
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262 } |
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263 } |
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265 | |
266 void DatabaseLookup::AddRestConstraint(const DicomTag& tag, | |
267 const std::string& dicomQuery, | |
268 bool caseSensitive, | |
269 bool mandatoryTag) | |
270 { | |
271 AddDicomConstraintInternal(tag, FromDcmtkBridge::LookupValueRepresentation(tag), | |
272 dicomQuery, caseSensitive, mandatoryTag); | |
273 } | |
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274 |
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275 |
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276 bool DatabaseLookup::HasOnlyMainDicomTags() const |
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277 { |
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278 std::set<DicomTag> mainTags; |
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279 DicomMap::GetMainDicomTags(mainTags); |
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280 |
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281 for (size_t i = 0; i < constraints_.size(); i++) |
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282 { |
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283 assert(constraints_[i] != NULL); |
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284 |
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285 if (mainTags.find(constraints_[i]->GetTag()) == mainTags.end()) |
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286 { |
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287 // This is not a main DICOM tag |
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288 return false; |
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289 } |
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290 } |
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291 |
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292 return true; |
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293 } |
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294 } |