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annotate OrthancServer/Search/HierarchicalMatcher.cpp @ 2382:7284093111b0

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big reorganization to cleanly separate framework vs. server
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 29 Aug 2017 21:17:35 +0200
parents 2a15186ca28a
children e4045b3c9772
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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 Osimis, 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 "../OrthancInitialization.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 Setup(*query.GetDcmtkObject().getDataset(),
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50 Configuration::GetGlobalBoolParameter("CaseSensitivePN", false),
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51 query.GetEncoding());
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52 }
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53
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54
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55 HierarchicalMatcher::~HierarchicalMatcher()
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56 {
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57 for (Constraints::iterator it = constraints_.begin();
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58 it != constraints_.end(); ++it)
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59 {
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60 if (it->second != NULL)
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61 {
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62 delete it->second;
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63 }
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64 }
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65
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66 for (Sequences::iterator it = sequences_.begin();
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67 it != sequences_.end(); ++it)
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68 {
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69 if (it->second != NULL)
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70 {
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71 delete it->second;
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72 }
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73 }
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74 }
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75
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76
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77 void HierarchicalMatcher::Setup(DcmItem& dataset,
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78 bool caseSensitivePN,
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79 Encoding encoding)
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80 {
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81 for (unsigned long i = 0; i < dataset.card(); i++)
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82 {
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83 DcmElement* element = dataset.getElement(i);
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84 if (element == NULL)
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85 {
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86 throw OrthancException(ErrorCode_InternalError);
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87 }
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88
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89 DicomTag tag(FromDcmtkBridge::Convert(element->getTag()));
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90 if (tag == DICOM_TAG_SPECIFIC_CHARACTER_SET || // Ignore encoding
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91 tag.GetElement() == 0x0000) // Ignore all "Group Length" tags
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92 {
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93 continue;
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94 }
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95
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96 ValueRepresentation vr = FromDcmtkBridge::LookupValueRepresentation(tag);
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97
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98 if (constraints_.find(tag) != constraints_.end() ||
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99 sequences_.find(tag) != sequences_.end())
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100 {
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101 throw OrthancException(ErrorCode_BadRequest);
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102 }
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103
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104 if (vr == ValueRepresentation_Sequence)
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105 {
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106 DcmSequenceOfItems& sequence = dynamic_cast<DcmSequenceOfItems&>(*element);
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107
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108 if (sequence.card() == 0 ||
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109 (sequence.card() == 1 && sequence.getItem(0)->card() == 0))
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110 {
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111 // Universal matching of a sequence
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112 sequences_[tag] = NULL;
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113 }
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114 else if (sequence.card() == 1)
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115 {
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116 sequences_[tag] = new HierarchicalMatcher(*sequence.getItem(0), caseSensitivePN, encoding);
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117 }
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118 else
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119 {
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120 throw OrthancException(ErrorCode_BadRequest);
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121 }
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122 }
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123 else
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124 {
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125 std::auto_ptr<DicomValue> value(FromDcmtkBridge::ConvertLeafElement
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126 (*element, DicomToJsonFlags_None,
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127 ORTHANC_MAXIMUM_TAG_LENGTH, encoding));
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128
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129 if (value->IsBinary())
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130 {
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131 if (!value->GetContent().empty())
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132 {
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133 LOG(WARNING) << "This C-Find modality worklist query contains a non-empty tag ("
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134 << tag.Format() << ") with UN (unknown) value representation. "
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135 << "It will be ignored.";
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136 }
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137
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138 constraints_[tag] = NULL;
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139 }
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140 else if (value->IsNull() ||
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141 value->GetContent().empty())
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142 {
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143 // This is an universal matcher
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144 constraints_[tag] = NULL;
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145 }
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146 else
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147 {
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148 // DICOM specifies that searches must be case sensitive, except
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149 // for tags with a PN value representation
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150 bool sensitive = true;
2007
655489d9165d DicomMap::ParseDicomMetaInformation()
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parents: 2006
diff changeset
151 if (vr == ValueRepresentation_PersonName)
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152 {
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153 sensitive = caseSensitivePN;
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154 }
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155
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156 constraints_[tag] = IFindConstraint::ParseDicomConstraint(tag, value->GetContent(), sensitive);
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157 }
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158 }
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parents:
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159 }
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parents:
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160 }
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parents:
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161
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parents:
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162
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163 std::string HierarchicalMatcher::Format(const std::string& prefix) const
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164 {
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165 std::string s;
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166
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167 for (Constraints::const_iterator it = constraints_.begin();
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168 it != constraints_.end(); ++it)
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169 {
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170 s += prefix + it->first.Format() + " ";
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171
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172 if (it->second == NULL)
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173 {
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174 s += "*\n";
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175 }
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parents:
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176 else
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177 {
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178 s += it->second->Format() + "\n";
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179 }
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180 }
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181
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182 for (Sequences::const_iterator it = sequences_.begin();
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183 it != sequences_.end(); ++it)
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parents:
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184 {
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185 s += prefix + it->first.Format() + " ";
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parents:
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186
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187 if (it->second == NULL)
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188 {
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189 s += "*\n";
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190 }
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parents:
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191 else
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parents:
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192 {
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193 s += "Sequence:\n" + it->second->Format(prefix + " ");
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parents:
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194 }
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parents:
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195 }
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parents:
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196
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parents:
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197 return s;
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parents:
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198 }
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diff changeset
199
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diff changeset
200
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diff changeset
201 bool HierarchicalMatcher::Match(ParsedDicomFile& dicom) const
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202 {
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diff changeset
203 return MatchInternal(*dicom.GetDcmtkObject().getDataset(),
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diff changeset
204 dicom.GetEncoding());
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diff changeset
205 }
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diff changeset
206
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parents: 1795
diff changeset
207
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diff changeset
208 bool HierarchicalMatcher::MatchInternal(DcmItem& item,
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diff changeset
209 Encoding encoding) const
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210 {
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diff changeset
211 for (Constraints::const_iterator it = constraints_.begin();
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diff changeset
212 it != constraints_.end(); ++it)
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diff changeset
213 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
214 if (it->second != NULL)
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diff changeset
215 {
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diff changeset
216 DcmTagKey tag = ToDcmtkBridge::Convert(it->first);
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diff changeset
217
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diff changeset
218 DcmElement* element = NULL;
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diff changeset
219 if (!item.findAndGetElement(tag, element).good() ||
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
220 element == NULL)
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parents: 1795
diff changeset
221 {
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diff changeset
222 return false;
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parents: 1795
diff changeset
223 }
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parents: 1795
diff changeset
224
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parents: 1795
diff changeset
225 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
226 (*element, DicomToJsonFlags_None,
cda5b0ab4ce5 ORTHANC_MAXIMUM_TAG_LENGTH made explicit
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1900
diff changeset
227 ORTHANC_MAXIMUM_TAG_LENGTH, encoding));
1796
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parents: 1795
diff changeset
228
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
229 if (value->IsNull() ||
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parents: 1795
diff changeset
230 value->IsBinary() ||
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parents: 1795
diff changeset
231 !it->second->Match(value->GetContent()))
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parents: 1795
diff changeset
232 {
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diff changeset
233 return false;
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parents: 1795
diff changeset
234 }
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parents: 1795
diff changeset
235 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
236 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
237
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parents: 1795
diff changeset
238 for (Sequences::const_iterator it = sequences_.begin();
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
239 it != sequences_.end(); ++it)
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parents: 1795
diff changeset
240 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
241 if (it->second != NULL)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
242 {
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diff changeset
243 DcmTagKey tag = ToDcmtkBridge::Convert(it->first);
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parents: 1795
diff changeset
244
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diff changeset
245 DcmSequenceOfItems* sequence = NULL;
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diff changeset
246 if (!item.findAndGetSequence(tag, sequence).good() ||
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
247 sequence == NULL)
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parents: 1795
diff changeset
248 {
1891
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1890
diff changeset
249 continue;
1796
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diff changeset
250 }
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parents: 1795
diff changeset
251
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diff changeset
252 bool match = false;
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diff changeset
253
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parents: 1795
diff changeset
254 for (unsigned long i = 0; i < sequence->card(); i++)
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diff changeset
255 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
256 if (it->second->MatchInternal(*sequence->getItem(i), encoding))
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
257 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
258 match = true;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
259 break;
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 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
262
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
263 if (!match)
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 return false;
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
266 }
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
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parents: 1795
diff changeset
269
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parents: 1795
diff changeset
270 return true;
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parents: 1795
diff changeset
271 }
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
272
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parents: 1795
diff changeset
273
1797
23722a191e4e worklists are working
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parents: 1796
diff changeset
274 DcmDataset* HierarchicalMatcher::ExtractInternal(DcmItem& source,
1796
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
275 Encoding encoding) const
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
276 {
1797
23722a191e4e worklists are working
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parents: 1796
diff changeset
277 std::auto_ptr<DcmDataset> target(new DcmDataset);
1796
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parents: 1795
diff changeset
278
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
279 for (Constraints::const_iterator it = constraints_.begin();
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
280 it != constraints_.end(); ++it)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
281 {
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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diff changeset
282 DcmTagKey tag = ToDcmtkBridge::Convert(it->first);
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parents: 1795
diff changeset
283
5e08a5fe6b27 HierarchicalMatcher - extracting tags
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parents: 1795
diff changeset
284 DcmElement* element = NULL;
1797
23722a191e4e worklists are working
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1796
diff changeset
285 if (source.findAndGetElement(tag, element).good() &&
1796
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
diff changeset
286 element != NULL)
5e08a5fe6b27 HierarchicalMatcher - extracting tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1795
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287 {
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288 std::auto_ptr<DcmElement> cloned(FromDcmtkBridge::CreateElementForTag(it->first));
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289 cloned->copyFrom(*element);
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290 target->insert(cloned.release());
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291 }
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292 }
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293
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294 for (Sequences::const_iterator it = sequences_.begin();
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295 it != sequences_.end(); ++it)
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296 {
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297 DcmTagKey tag = ToDcmtkBridge::Convert(it->first);
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298
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299 DcmSequenceOfItems* sequence = NULL;
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300 if (source.findAndGetSequence(tag, sequence).good() &&
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301 sequence != NULL)
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302 {
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303 std::auto_ptr<DcmSequenceOfItems> cloned(new DcmSequenceOfItems(tag));
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304
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305 for (unsigned long i = 0; i < sequence->card(); i++)
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306 {
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307 if (it->second == NULL)
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308 {
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309 cloned->append(new DcmItem(*sequence->getItem(i)));
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310 }
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311 else if (it->second->MatchInternal(*sequence->getItem(i), encoding)) // TODO Might be optimized
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312 {
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313 // It is necessary to encapsulate the child dataset into a
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314 // "DcmItem" object before it can be included in a
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315 // sequence. Otherwise, "dciodvfy" reports an error "Bad
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316 // tag in sequence - Expecting Item or Sequence Delimiter."
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317 std::auto_ptr<DcmDataset> child(it->second->ExtractInternal(*sequence->getItem(i), encoding));
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318 cloned->append(new DcmItem(*child));
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319 }
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320 }
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321
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322 target->insert(cloned.release());
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323 }
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324 }
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325
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326 return target.release();
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327 }
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328
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329
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330 ParsedDicomFile* HierarchicalMatcher::Extract(ParsedDicomFile& dicom) const
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331 {
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332 std::auto_ptr<DcmDataset> dataset(ExtractInternal(*dicom.GetDcmtkObject().getDataset(),
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333 dicom.GetEncoding()));
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334
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335 std::auto_ptr<ParsedDicomFile> result(new ParsedDicomFile(*dataset));
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336 result->SetEncoding(dicom.GetEncoding());
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337
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338 return result.release();
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339 }
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340 }