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annotate OrthancServer/Search/HierarchicalMatcher.cpp @ 2948:d2e548e643af

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New options to URI "/queries/.../answers": "?expand" and "?limit"
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 29 Nov 2018 20:36:31 +0100
parents 4767d36679ed
children 4e43e67f8ecf
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
1900
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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 "HierarchicalMatcher.h"
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36
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37 #include "../../Core/Logging.h"
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38 #include "../../Core/OrthancException.h"
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39 #include "../../Core/DicomParsing/FromDcmtkBridge.h"
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40 #include "../../Core/DicomParsing/ToDcmtkBridge.h"
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41 #include "../OrthancConfiguration.h"
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42
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43 #include <dcmtk/dcmdata/dcfilefo.h>
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44
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45 namespace Orthanc
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46 {
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47 HierarchicalMatcher::HierarchicalMatcher(ParsedDicomFile& query)
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48 {
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49 bool caseSensitivePN;
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50
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51 {
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52 OrthancConfiguration::ReaderLock lock;
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53 caseSensitivePN = lock.GetConfiguration().GetBooleanParameter("CaseSensitivePN", false);
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54 }
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55
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56 Setup(*query.GetDcmtkObject().getDataset(), caseSensitivePN, query.GetEncoding());
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57 }
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58
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59
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60 HierarchicalMatcher::~HierarchicalMatcher()
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61 {
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62 for (Constraints::iterator it = constraints_.begin();
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63 it != constraints_.end(); ++it)
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64 {
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65 if (it->second != NULL)
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66 {
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67 delete it->second;
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68 }
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69 }
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70
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71 for (Sequences::iterator it = sequences_.begin();
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72 it != sequences_.end(); ++it)
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73 {
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74 if (it->second != NULL)
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75 {
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76 delete it->second;
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77 }
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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 void HierarchicalMatcher::Setup(DcmItem& dataset,
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83 bool caseSensitivePN,
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84 Encoding encoding)
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85 {
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86 for (unsigned long i = 0; i < dataset.card(); i++)
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87 {
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88 DcmElement* element = dataset.getElement(i);
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89 if (element == NULL)
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90 {
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91 throw OrthancException(ErrorCode_InternalError);
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92 }
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93
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94 DicomTag tag(FromDcmtkBridge::Convert(element->getTag()));
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95 if (tag == DICOM_TAG_SPECIFIC_CHARACTER_SET || // Ignore encoding
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96 tag.GetElement() == 0x0000) // Ignore all "Group Length" tags
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97 {
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98 continue;
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99 }
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100
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101 ValueRepresentation vr = FromDcmtkBridge::LookupValueRepresentation(tag);
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102
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103 if (constraints_.find(tag) != constraints_.end() ||
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104 sequences_.find(tag) != sequences_.end())
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105 {
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106 throw OrthancException(ErrorCode_BadRequest);
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107 }
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108
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109 if (vr == ValueRepresentation_Sequence)
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110 {
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111 DcmSequenceOfItems& sequence = dynamic_cast<DcmSequenceOfItems&>(*element);
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112
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113 if (sequence.card() == 0 ||
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114 (sequence.card() == 1 && sequence.getItem(0)->card() == 0))
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115 {
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116 // Universal matching of a sequence
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117 sequences_[tag] = NULL;
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118 }
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119 else if (sequence.card() == 1)
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120 {
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121 sequences_[tag] = new HierarchicalMatcher(*sequence.getItem(0), caseSensitivePN, encoding);
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122 }
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123 else
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124 {
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125 throw OrthancException(ErrorCode_BadRequest);
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126 }
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127 }
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128 else
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129 {
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130 std::set<DicomTag> ignoreTagLength;
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131 std::auto_ptr<DicomValue> value(FromDcmtkBridge::ConvertLeafElement
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132 (*element, DicomToJsonFlags_None,
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133 ORTHANC_MAXIMUM_TAG_LENGTH, encoding, ignoreTagLength));
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134
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135 if (value->IsBinary())
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136 {
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137 if (!value->GetContent().empty())
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138 {
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139 LOG(WARNING) << "This C-Find modality worklist query contains a non-empty tag ("
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140 << tag.Format() << ") with UN (unknown) value representation. "
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141 << "It will be ignored.";
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142 }
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diff changeset
143
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diff changeset
144 constraints_[tag] = NULL;
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145 }
1867
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diff changeset
146 else if (value->IsNull() ||
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147 value->GetContent().empty())
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148 {
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149 // This is an universal matcher
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150 constraints_[tag] = NULL;
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151 }
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152 else
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153 {
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154 // DICOM specifies that searches must be case sensitive, except
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155 // for tags with a PN value representation
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156 bool sensitive = true;
2007
655489d9165d DicomMap::ParseDicomMetaInformation()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2006
diff changeset
157 if (vr == ValueRepresentation_PersonName)
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158 {
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159 sensitive = caseSensitivePN;
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160 }
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161
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162 constraints_[tag] = IFindConstraint::ParseDicomConstraint(tag, value->GetContent(), sensitive);
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163 }
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parents:
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164 }
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parents:
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165 }
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parents:
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166 }
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parents:
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167
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168
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169 std::string HierarchicalMatcher::Format(const std::string& prefix) const
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170 {
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171 std::string s;
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172
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173 for (Constraints::const_iterator it = constraints_.begin();
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174 it != constraints_.end(); ++it)
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175 {
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176 s += prefix + it->first.Format() + " ";
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177
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178 if (it->second == NULL)
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179 {
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180 s += "*\n";
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181 }
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182 else
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183 {
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184 s += it->second->Format() + "\n";
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185 }
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186 }
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187
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188 for (Sequences::const_iterator it = sequences_.begin();
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189 it != sequences_.end(); ++it)
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190 {
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191 s += prefix + it->first.Format() + " ";
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192
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193 if (it->second == NULL)
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194 {
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195 s += "*\n";
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196 }
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197 else
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198 {
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199 s += "Sequence:\n" + it->second->Format(prefix + " ");
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200 }
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parents:
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201 }
af6840eb23ee HierarchicalMatcher
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parents:
diff changeset
202
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diff changeset
203 return s;
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parents:
diff changeset
204 }
1796
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diff changeset
205
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diff changeset
206
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diff changeset
207 bool HierarchicalMatcher::Match(ParsedDicomFile& dicom) const
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208 {
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diff changeset
209 return MatchInternal(*dicom.GetDcmtkObject().getDataset(),
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
210 dicom.GetEncoding());
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diff changeset
211 }
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diff changeset
212
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
213
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
214 bool HierarchicalMatcher::MatchInternal(DcmItem& item,
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diff changeset
215 Encoding encoding) const
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diff changeset
216 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
217 for (Constraints::const_iterator it = constraints_.begin();
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diff changeset
218 it != constraints_.end(); ++it)
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diff changeset
219 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
220 if (it->second != NULL)
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Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
221 {
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diff changeset
222 DcmTagKey tag = ToDcmtkBridge::Convert(it->first);
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diff changeset
223
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diff changeset
224 DcmElement* element = NULL;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
225 if (!item.findAndGetElement(tag, element).good() ||
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
226 element == NULL)
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
227 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
228 return false;
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diff changeset
229 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
230
2409
e4045b3c9772 ignore-length argument if retrieving DICOM tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2382
diff changeset
231 std::set<DicomTag> ignoreTagLength;
1796
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
232 std::auto_ptr<DicomValue> value(FromDcmtkBridge::ConvertLeafElement
1929
cda5b0ab4ce5 ORTHANC_MAXIMUM_TAG_LENGTH made explicit
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1900
diff changeset
233 (*element, DicomToJsonFlags_None,
2409
e4045b3c9772 ignore-length argument if retrieving DICOM tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2382
diff changeset
234 ORTHANC_MAXIMUM_TAG_LENGTH, encoding, ignoreTagLength));
1796
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parents: 1795
diff changeset
235
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
236 if (value->IsNull() ||
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
237 value->IsBinary() ||
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
238 !it->second->Match(value->GetContent()))
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
239 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
240 return false;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
241 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
242 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
243 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
244
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
245 for (Sequences::const_iterator it = sequences_.begin();
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
246 it != sequences_.end(); ++it)
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
247 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
248 if (it->second != NULL)
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
249 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
250 DcmTagKey tag = ToDcmtkBridge::Convert(it->first);
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
251
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
252 DcmSequenceOfItems* sequence = NULL;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
253 if (!item.findAndGetSequence(tag, sequence).good() ||
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
254 sequence == NULL)
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
255 {
1891
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1890
diff changeset
256 continue;
1796
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parents: 1795
diff changeset
257 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
258
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
259 bool match = false;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
260
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
261 for (unsigned long i = 0; i < sequence->card(); i++)
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
262 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
263 if (it->second->MatchInternal(*sequence->getItem(i), encoding))
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
264 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
265 match = true;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
266 break;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
267 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
268 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
269
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
270 if (!match)
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
271 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
272 return false;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
273 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
274 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
275 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
276
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
277 return true;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
278 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
279
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
280
1797
23722a191e4e worklists are working
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1796
diff changeset
281 DcmDataset* HierarchicalMatcher::ExtractInternal(DcmItem& source,
1796
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
282 Encoding encoding) const
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
283 {
1797
23722a191e4e worklists are working
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parents: 1796
diff changeset
284 std::auto_ptr<DcmDataset> target(new DcmDataset);
1796
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parents: 1795
diff changeset
285
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
286 for (Constraints::const_iterator it = constraints_.begin();
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
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287 it != constraints_.end(); ++it)
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288 {
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289 DcmTagKey tag = ToDcmtkBridge::Convert(it->first);
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290
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291 DcmElement* element = NULL;
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292 if (source.findAndGetElement(tag, element).good() &&
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293 element != NULL)
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294 {
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295 std::auto_ptr<DcmElement> cloned(FromDcmtkBridge::CreateElementForTag(it->first));
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296 cloned->copyFrom(*element);
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297 target->insert(cloned.release());
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298 }
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299 }
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300
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301 for (Sequences::const_iterator it = sequences_.begin();
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302 it != sequences_.end(); ++it)
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303 {
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304 DcmTagKey tag = ToDcmtkBridge::Convert(it->first);
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305
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306 DcmSequenceOfItems* sequence = NULL;
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307 if (source.findAndGetSequence(tag, sequence).good() &&
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308 sequence != NULL)
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309 {
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310 std::auto_ptr<DcmSequenceOfItems> cloned(new DcmSequenceOfItems(tag));
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311
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312 for (unsigned long i = 0; i < sequence->card(); i++)
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313 {
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314 if (it->second == NULL)
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315 {
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316 cloned->append(new DcmItem(*sequence->getItem(i)));
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317 }
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318 else if (it->second->MatchInternal(*sequence->getItem(i), encoding)) // TODO Might be optimized
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319 {
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320 // It is necessary to encapsulate the child dataset into a
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321 // "DcmItem" object before it can be included in a
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322 // sequence. Otherwise, "dciodvfy" reports an error "Bad
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323 // tag in sequence - Expecting Item or Sequence Delimiter."
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324 std::auto_ptr<DcmDataset> child(it->second->ExtractInternal(*sequence->getItem(i), encoding));
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325 cloned->append(new DcmItem(*child));
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326 }
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327 }
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328
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329 target->insert(cloned.release());
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330 }
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331 }
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332
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333 return target.release();
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334 }
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335
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336
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337 ParsedDicomFile* HierarchicalMatcher::Extract(ParsedDicomFile& dicom) const
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338 {
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339 std::auto_ptr<DcmDataset> dataset(ExtractInternal(*dicom.GetDcmtkObject().getDataset(),
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340 dicom.GetEncoding()));
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341
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342 std::auto_ptr<ParsedDicomFile> result(new ParsedDicomFile(*dataset));
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343 result->SetEncoding(dicom.GetEncoding());
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344
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345 return result.release();
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346 }
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347 }