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annotate OrthancServer/Search/DatabaseLookup.cpp @ 2892:ce310baccda6 db-changes

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DicomTagConstraint and DatabaseLookup
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 16 Oct 2018 18:00:05 +0200
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children 1723cbba55c7
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ce310baccda6 DicomTagConstraint and DatabaseLookup
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #include "../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
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40 namespace Orthanc
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41 {
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42 void DatabaseLookup::LoadTags(ResourceType level)
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43 {
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44 const DicomTag* tags = NULL;
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45 size_t size;
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46
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47 ServerToolbox::LoadIdentifiers(tags, size, level);
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48
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49 for (size_t i = 0; i < size; i++)
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50 {
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51 assert(tags_.find(tags[i]) == tags_.end());
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52 tags_[tags[i]] = TagInfo(DicomTagType_Identifier, level);
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53 }
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54
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55 DicomMap::LoadMainDicomTags(tags, size, level);
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56
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57 for (size_t i = 0; i < size; i++)
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58 {
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59 if (tags_.find(tags[i]) == tags_.end())
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60 {
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61 tags_[tags[i]] = TagInfo(DicomTagType_Main, level);
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62 }
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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 DatabaseLookup::DatabaseLookup()
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68 {
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69 LoadTags(ResourceType_Patient);
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70 LoadTags(ResourceType_Study);
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71 LoadTags(ResourceType_Series);
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72 LoadTags(ResourceType_Instance);
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73 }
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74
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75
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76 DatabaseLookup::~DatabaseLookup()
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77 {
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78 for (size_t i = 0; i < constraints_.size(); i++)
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79 {
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80 assert(constraints_[i] != NULL);
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81 delete constraints_[i];
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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 const DicomTagConstraint& DatabaseLookup::GetConstraint(size_t index) const
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87 {
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88 if (index >= constraints_.size())
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89 {
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90 throw OrthancException(ErrorCode_ParameterOutOfRange);
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91 }
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92 else
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93 {
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94 assert(constraints_[index] != NULL);
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95 return *constraints_[index];
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96 }
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97 }
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98
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99
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100 void DatabaseLookup::AddConstraint(DicomTagConstraint* constraint)
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101 {
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102 if (constraint == NULL)
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103 {
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104 throw OrthancException(ErrorCode_NullPointer);
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105 }
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106 else
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107 {
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108 constraints_.push_back(constraint);
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109
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110 std::map<DicomTag, TagInfo>::const_iterator tag = tags_.find(constraint->GetTag());
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111
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112 if (tag == tags_.end())
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113 {
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114 constraint->SetTagInfo(DicomTagType_Generic, ResourceType_Instance);
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115 }
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116 else
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117 {
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118 constraint->SetTagInfo(tag->second.GetType(), tag->second.GetLevel());
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119 }
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120 }
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121 }
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122
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123
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124 bool DatabaseLookup::IsMatch(const DicomMap& value)
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125 {
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126 for (size_t i = 0; i < constraints_.size(); i++)
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127 {
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128 assert(constraints_[i] != NULL);
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129 if (!constraints_[i]->IsMatch(value))
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130 {
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131 return false;
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132 }
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133 }
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134
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135 return true;
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136 }
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137
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138
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139 void DatabaseLookup::AddDicomConstraint(const DicomTag& tag,
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140 const std::string& dicomQuery,
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141 bool caseSensitivePN)
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142 {
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143 ValueRepresentation vr = FromDcmtkBridge::LookupValueRepresentation(tag);
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144
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145 if (vr == ValueRepresentation_Sequence)
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146 {
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147 throw OrthancException(ErrorCode_ParameterOutOfRange);
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148 }
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149
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150 /**
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151 * DICOM specifies that searches must always be case sensitive,
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152 * except for tags with a PN value representation. For PN, Orthanc
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153 * uses the configuration option "CaseSensitivePN" to decide
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154 * whether matching is case-sensitive or case-insensitive.
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155 *
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156 * Reference: DICOM PS 3.4
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157 * - C.2.2.2.1 ("Single Value Matching")
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158 * - C.2.2.2.4 ("Wild Card Matching")
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159 * http://medical.nema.org/Dicom/2011/11_04pu.pdf
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160 *
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161 * "Except for Attributes with a PN Value Representation, only
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162 * entities with values which match exactly the value specified in the
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163 * request shall match. This matching is case-sensitive, i.e.,
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164 * sensitive to the exact encoding of the key attribute value in
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165 * character sets where a letter may have multiple encodings (e.g.,
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166 * based on its case, its position in a word, or whether it is
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167 * accented)
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168 *
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169 * For Attributes with a PN Value Representation (e.g., Patient Name
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170 * (0010,0010)), an application may perform literal matching that is
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171 * either case-sensitive, or that is insensitive to some or all
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172 * aspects of case, position, accent, or other character encoding
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173 * variants."
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174 *
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175 * (0008,0018) UI SOPInstanceUID => Case-sensitive
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176 * (0008,0050) SH AccessionNumber => Case-sensitive
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177 * (0010,0020) LO PatientID => Case-sensitive
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178 * (0020,000D) UI StudyInstanceUID => Case-sensitive
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179 * (0020,000E) UI SeriesInstanceUID => Case-sensitive
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180 **/
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181 bool caseSensitive = true;
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182 if (vr == ValueRepresentation_PersonName)
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183 {
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184 caseSensitive = caseSensitivePN;
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185 }
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186
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187 if ((vr == ValueRepresentation_Date ||
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188 vr == ValueRepresentation_DateTime ||
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189 vr == ValueRepresentation_Time) &&
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190 dicomQuery.find('-') != std::string::npos)
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191 {
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192 /**
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193 * Range matching is only defined for TM, DA and DT value
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194 * representations. This code fixes issues 35 and 37.
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195 *
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196 * Reference: "Range matching is not defined for types of
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197 * Attributes other than dates and times", DICOM PS 3.4,
ce310baccda6 DicomTagConstraint and DatabaseLookup
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198 * C.2.2.2.5 ("Range Matching").
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199 **/
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200 size_t separator = dicomQuery.find('-');
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201 std::string lower = dicomQuery.substr(0, separator);
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202 std::string upper = dicomQuery.substr(separator + 1);
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203
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204 if (!lower.empty())
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205 {
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206 AddConstraint(new DicomTagConstraint
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207 (tag, ConstraintType_GreaterOrEqual, lower, caseSensitive));
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208 }
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209
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210 if (!upper.empty())
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211 {
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212 AddConstraint(new DicomTagConstraint
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213 (tag, ConstraintType_SmallerOrEqual, upper, caseSensitive));
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214 }
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215 }
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216 else if (dicomQuery.find('\\') != std::string::npos)
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217 {
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218 DicomTag fixedTag(tag);
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219
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220 if (tag == DICOM_TAG_MODALITIES_IN_STUDY)
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221 {
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222 // http://www.itk.org/Wiki/DICOM_QueryRetrieve_Explained
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parents:
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223 // http://dicomiseasy.blogspot.be/2012/01/dicom-queryretrieve-part-i.html
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224 fixedTag = DICOM_TAG_MODALITY;
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diff changeset
225 }
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diff changeset
226
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diff changeset
227 std::auto_ptr<DicomTagConstraint> constraint
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228 (new DicomTagConstraint(fixedTag, ConstraintType_List, caseSensitive));
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diff changeset
229
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230 std::vector<std::string> items;
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diff changeset
231 Toolbox::TokenizeString(items, dicomQuery, '\\');
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
232
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
233 for (size_t i = 0; i < items.size(); i++)
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diff changeset
234 {
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diff changeset
235 constraint->AddValue(items[i]);
ce310baccda6 DicomTagConstraint and DatabaseLookup
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236 }
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
237
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238 AddConstraint(constraint.release());
ce310baccda6 DicomTagConstraint and DatabaseLookup
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239 }
ce310baccda6 DicomTagConstraint and DatabaseLookup
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240 else if (dicomQuery.find('*') != std::string::npos ||
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
241 dicomQuery.find('?') != std::string::npos)
ce310baccda6 DicomTagConstraint and DatabaseLookup
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parents:
diff changeset
242 {
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
243 AddConstraint(new DicomTagConstraint
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
244 (tag, ConstraintType_Wildcard, dicomQuery, caseSensitive));
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245 }
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
246 else
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
247 {
ce310baccda6 DicomTagConstraint and DatabaseLookup
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diff changeset
248 AddConstraint(new DicomTagConstraint
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249 (tag, ConstraintType_Equal, dicomQuery, caseSensitive));
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250 }
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diff changeset
251 }
ce310baccda6 DicomTagConstraint and DatabaseLookup
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252 }