Mercurial > hg > orthanc
annotate OrthancServer/OrthancRestApi/OrthancRestArchive.cpp @ 1385:772c8507c68d query-retrieve
integration mainline->query-retrieve
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 29 May 2015 15:00:45 +0200 |
parents | 0c735fed8953 |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * |
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6 * This program is free software: you can redistribute it and/or |
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7 * modify it under the terms of the GNU General Public License as |
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8 * published by the Free Software Foundation, either version 3 of the |
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9 * License, or (at your option) any later version. |
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10 * |
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11 * In addition, as a special exception, the copyright holders of this |
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12 * program give permission to link the code of its release with the |
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it |
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14 * that use the same license as the "OpenSSL" library), and distribute |
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15 * the linked executables. You must obey the GNU General Public License |
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16 * in all respects for all of the code used other than "OpenSSL". If you |
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17 * modify file(s) with this exception, you may extend this exception to |
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18 * your version of the file(s), but you are not obligated to do so. If |
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19 * you do not wish to do so, delete this exception statement from your |
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20 * version. If you delete this exception statement from all source files |
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21 * in the program, then also delete it here. |
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22 * |
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23 * This program is distributed in the hope that it will be useful, but |
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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26 * General Public License for more details. |
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27 * |
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28 * You should have received a copy of the GNU General Public License |
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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30 **/ |
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31 |
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32 |
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33 #include "../PrecompiledHeadersServer.h" |
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34 #include "OrthancRestApi.h" |
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35 |
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36 #include "../DicomDirWriter.h" |
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37 #include "../../Core/Compression/HierarchicalZipWriter.h" |
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38 #include "../../Core/HttpServer/FilesystemHttpSender.h" |
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39 #include "../../Core/Uuid.h" |
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40 |
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41 #include <glog/logging.h> |
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42 #include <stdio.h> |
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43 |
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44 #if defined(_MSC_VER) |
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45 #define snprintf _snprintf |
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46 #endif |
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47 |
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48 static const uint64_t MEGA_BYTES = 1024 * 1024; |
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49 static const uint64_t GIGA_BYTES = 1024 * 1024 * 1024; |
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50 |
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51 namespace Orthanc |
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52 { |
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53 // Download of ZIP files ---------------------------------------------------- |
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54 |
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55 static std::string GetDirectoryNameInArchive(const Json::Value& resource, |
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56 ResourceType resourceType) |
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57 { |
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58 std::string s; |
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59 const Json::Value& tags = resource["MainDicomTags"]; |
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60 |
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61 switch (resourceType) |
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62 { |
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63 case ResourceType_Patient: |
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64 { |
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65 std::string p = tags["PatientID"].asString(); |
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66 std::string n = tags["PatientName"].asString(); |
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67 s = p + " " + n; |
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68 break; |
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69 } |
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70 |
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71 case ResourceType_Study: |
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72 { |
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73 std::string p; |
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74 if (tags.isMember("AccessionNumber")) |
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75 { |
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76 p = tags["AccessionNumber"].asString() + " "; |
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77 } |
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78 |
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79 s = p + tags["StudyDescription"].asString(); |
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80 break; |
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81 } |
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82 |
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83 case ResourceType_Series: |
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84 { |
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85 std::string d = tags["SeriesDescription"].asString(); |
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86 std::string m = tags["Modality"].asString(); |
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87 s = m + " " + d; |
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88 break; |
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89 } |
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90 |
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91 default: |
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92 throw OrthancException(ErrorCode_InternalError); |
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93 } |
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94 |
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95 // Get rid of special characters |
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96 return Toolbox::ConvertToAscii(s); |
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97 } |
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98 |
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99 static bool CreateRootDirectoryInArchive(HierarchicalZipWriter& writer, |
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100 ServerContext& context, |
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101 const Json::Value& resource, |
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102 ResourceType resourceType) |
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103 { |
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104 if (resourceType == ResourceType_Patient) |
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105 { |
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106 return true; |
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107 } |
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108 |
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109 ResourceType parentType = GetParentResourceType(resourceType); |
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110 Json::Value parent; |
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111 |
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112 switch (resourceType) |
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113 { |
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114 case ResourceType_Study: |
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115 { |
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116 if (!context.GetIndex().LookupResource(parent, resource["ParentPatient"].asString(), parentType)) |
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117 { |
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118 return false; |
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119 } |
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120 |
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121 break; |
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122 } |
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123 |
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124 case ResourceType_Series: |
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125 if (!context.GetIndex().LookupResource(parent, resource["ParentStudy"].asString(), parentType) || |
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126 !CreateRootDirectoryInArchive(writer, context, parent, parentType)) |
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127 { |
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128 return false; |
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129 } |
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130 break; |
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131 |
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132 default: |
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133 throw OrthancException(ErrorCode_NotImplemented); |
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134 } |
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135 |
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136 writer.OpenDirectory(GetDirectoryNameInArchive(parent, parentType).c_str()); |
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137 return true; |
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138 } |
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139 |
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140 static bool ArchiveInstance(HierarchicalZipWriter& writer, |
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141 ServerContext& context, |
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142 const std::string& instancePublicId, |
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143 const char* filename) |
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144 { |
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145 writer.OpenFile(filename); |
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146 |
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147 std::string dicom; |
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148 context.ReadFile(dicom, instancePublicId, FileContentType_Dicom); |
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149 writer.Write(dicom); |
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150 |
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151 return true; |
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152 } |
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153 |
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154 static bool ArchiveInternal(HierarchicalZipWriter& writer, |
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155 ServerContext& context, |
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156 const std::string& publicId, |
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157 ResourceType resourceType, |
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158 bool isFirstLevel) |
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159 { |
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160 Json::Value resource; |
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161 if (!context.GetIndex().LookupResource(resource, publicId, resourceType)) |
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162 { |
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163 return false; |
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164 } |
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165 |
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166 if (isFirstLevel && |
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167 !CreateRootDirectoryInArchive(writer, context, resource, resourceType)) |
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168 { |
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169 return false; |
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170 } |
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171 |
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172 writer.OpenDirectory(GetDirectoryNameInArchive(resource, resourceType).c_str()); |
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173 |
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174 switch (resourceType) |
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175 { |
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176 case ResourceType_Patient: |
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177 for (Json::Value::ArrayIndex i = 0; i < resource["Studies"].size(); i++) |
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178 { |
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179 std::string studyId = resource["Studies"][i].asString(); |
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180 if (!ArchiveInternal(writer, context, studyId, ResourceType_Study, false)) |
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181 { |
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182 return false; |
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183 } |
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184 } |
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185 break; |
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186 |
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187 case ResourceType_Study: |
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188 for (Json::Value::ArrayIndex i = 0; i < resource["Series"].size(); i++) |
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189 { |
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190 std::string seriesId = resource["Series"][i].asString(); |
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191 if (!ArchiveInternal(writer, context, seriesId, ResourceType_Series, false)) |
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192 { |
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193 return false; |
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194 } |
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195 } |
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196 break; |
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197 |
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198 case ResourceType_Series: |
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199 { |
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200 // Create a filename prefix, depending on the modality |
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201 char format[16] = "%08d"; |
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202 |
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203 if (resource["MainDicomTags"].isMember("Modality")) |
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204 { |
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205 std::string modality = resource["MainDicomTags"]["Modality"].asString(); |
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206 |
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207 if (modality.size() == 1) |
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208 { |
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209 snprintf(format, sizeof(format) - 1, "%c%%07d", toupper(modality[0])); |
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210 } |
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211 else if (modality.size() >= 2) |
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212 { |
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213 snprintf(format, sizeof(format) - 1, "%c%c%%06d", toupper(modality[0]), toupper(modality[1])); |
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214 } |
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215 } |
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216 |
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217 char filename[16]; |
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218 |
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219 for (Json::Value::ArrayIndex i = 0; i < resource["Instances"].size(); i++) |
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220 { |
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221 snprintf(filename, sizeof(filename) - 1, format, i); |
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222 |
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223 std::string publicId = resource["Instances"][i].asString(); |
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224 |
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225 // This was the implementation up to Orthanc 0.7.0: |
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226 // std::string filename = instance["MainDicomTags"]["SOPInstanceUID"].asString() + ".dcm"; |
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227 |
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228 if (!ArchiveInstance(writer, context, publicId, filename)) |
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229 { |
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230 return false; |
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231 } |
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232 } |
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233 |
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234 break; |
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235 } |
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236 |
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237 default: |
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238 throw OrthancException(ErrorCode_InternalError); |
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239 } |
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240 |
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241 writer.CloseDirectory(); |
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242 return true; |
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243 } |
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244 |
1121
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245 |
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246 static bool IsZip64Required(ServerIndex& index, |
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247 const std::string& id) |
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248 { |
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249 /** |
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250 * Determine whether ZIP64 is required. Original ZIP format can |
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251 * store up to 2GB of data (some implementation supporting up to |
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252 * 4GB of data), and up to 65535 files. |
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253 * https://en.wikipedia.org/wiki/Zip_(file_format)#ZIP64 |
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254 **/ |
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255 |
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256 uint64_t uncompressedSize; |
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257 uint64_t compressedSize; |
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258 unsigned int countStudies; |
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259 unsigned int countSeries; |
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260 unsigned int countInstances; |
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261 index.GetStatistics(compressedSize, uncompressedSize, |
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262 countStudies, countSeries, countInstances, id); |
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263 const bool isZip64 = (uncompressedSize >= 2 * GIGA_BYTES || |
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264 countInstances >= 65535); |
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265 |
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266 LOG(INFO) << "Creating a ZIP file with " << countInstances << " files of size " |
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267 << (uncompressedSize / MEGA_BYTES) << "MB using the " |
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268 << (isZip64 ? "ZIP64" : "ZIP32") << " file format"; |
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269 |
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270 return isZip64; |
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271 } |
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272 |
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273 |
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274 template <enum ResourceType resourceType> |
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275 static void GetArchive(RestApiGetCall& call) |
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276 { |
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277 ServerContext& context = OrthancRestApi::GetContext(call); |
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278 |
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279 std::string id = call.GetUriComponent("id", ""); |
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280 bool isZip64 = IsZip64Required(context.GetIndex(), id); |
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281 |
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282 // Create a RAII for the temporary file to manage the ZIP file |
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283 Toolbox::TemporaryFile tmp; |
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284 |
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285 { |
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286 // Create a ZIP writer |
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287 HierarchicalZipWriter writer(tmp.GetPath().c_str()); |
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288 writer.SetZip64(isZip64); |
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289 |
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290 // Store the requested resource into the ZIP |
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291 if (!ArchiveInternal(writer, context, id, resourceType, true)) |
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292 { |
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293 return; |
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294 } |
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295 } |
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296 |
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297 // Prepare the sending of the ZIP file |
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298 FilesystemHttpSender sender(tmp.GetPath().c_str()); |
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299 sender.SetContentType("application/zip"); |
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300 sender.SetDownloadFilename(id + ".zip"); |
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301 |
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302 // Send the ZIP |
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303 call.GetOutput().AnswerFile(sender); |
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304 |
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305 // The temporary file is automatically removed thanks to the RAII |
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306 } |
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307 |
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308 |
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309 static void GetMediaArchive(RestApiGetCall& call) |
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310 { |
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311 ServerContext& context = OrthancRestApi::GetContext(call); |
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312 |
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313 std::string id = call.GetUriComponent("id", ""); |
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314 bool isZip64 = IsZip64Required(context.GetIndex(), id); |
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315 |
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316 // Create a RAII for the temporary file to manage the ZIP file |
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317 Toolbox::TemporaryFile tmp; |
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318 |
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319 { |
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320 // Create a ZIP writer |
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321 HierarchicalZipWriter writer(tmp.GetPath().c_str()); |
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322 writer.SetZip64(isZip64); |
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323 writer.OpenDirectory("IMAGES"); |
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324 |
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325 // Create the DICOMDIR writer |
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326 DicomDirWriter dicomDir; |
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327 |
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328 // Retrieve the list of the instances |
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329 std::list<std::string> instances; |
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330 context.GetIndex().GetChildInstances(instances, id); |
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331 |
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332 size_t pos = 0; |
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333 for (std::list<std::string>::const_iterator |
1303 | 334 it = instances.begin(); it != instances.end(); ++it, ++pos) |
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335 { |
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336 // "DICOM restricts the filenames on DICOM media to 8 |
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337 // characters (some systems wrongly use 8.3, but this does not |
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338 // conform to the standard)." |
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339 std::string filename = "IM" + boost::lexical_cast<std::string>(pos); |
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340 writer.OpenFile(filename.c_str()); |
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341 |
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342 std::string dicom; |
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343 context.ReadFile(dicom, *it, FileContentType_Dicom); |
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344 writer.Write(dicom); |
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345 |
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346 ParsedDicomFile parsed(dicom); |
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347 dicomDir.Add("IMAGES", filename, parsed); |
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348 } |
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349 |
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350 // Add the DICOMDIR |
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351 writer.CloseDirectory(); |
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352 writer.OpenFile("DICOMDIR"); |
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353 std::string s; |
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354 dicomDir.Encode(s); |
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355 writer.Write(s); |
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356 } |
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357 |
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358 // Prepare the sending of the ZIP file |
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359 FilesystemHttpSender sender(tmp.GetPath().c_str()); |
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360 sender.SetContentType("application/zip"); |
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361 sender.SetDownloadFilename(id + ".zip"); |
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362 |
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363 // Send the ZIP |
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364 call.GetOutput().AnswerFile(sender); |
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365 |
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366 // The temporary file is automatically removed thanks to the RAII |
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367 } |
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368 |
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369 |
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370 void OrthancRestApi::RegisterArchive() |
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371 { |
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372 Register("/patients/{id}/archive", GetArchive<ResourceType_Patient>); |
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373 Register("/studies/{id}/archive", GetArchive<ResourceType_Study>); |
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374 Register("/series/{id}/archive", GetArchive<ResourceType_Series>); |
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375 |
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376 Register("/patients/{id}/media", GetMediaArchive); |
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377 Register("/studies/{id}/media", GetMediaArchive); |
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378 Register("/series/{id}/media", GetMediaArchive); |
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379 } |
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380 } |