Mercurial > hg > orthanc

annotate OrthancServer/ServerContext.cpp @ 771:537837f50fbb

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refactoring
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 30 Apr 2014 14:15:26 +0200
parents 309e686b41e7
children 4e3593c3511d
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
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4 * 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 "ServerContext.h"
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34
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35 #include "../Core/HttpServer/FilesystemHttpSender.h"
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36 #include "../Core/Lua/LuaFunctionCall.h"
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37 #include "ServerToolbox.h"
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38 #include "OrthancInitialization.h"
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39
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40 #include <glog/logging.h>
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41 #include <EmbeddedResources.h>
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42
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43 #define ENABLE_DICOM_CACHE 1
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44
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45 static const char* RECEIVED_INSTANCE_FILTER = "ReceivedInstanceFilter";
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46
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47 static const size_t DICOM_CACHE_SIZE = 2;
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48
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49 /**
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50 * IMPORTANT: We make the assumption that the same instance of
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51 * FileStorage can be accessed from multiple threads. This seems OK
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52 * since the filesystem implements the required locking mechanisms,
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53 * but maybe a read-writer lock on the "FileStorage" could be
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54 * useful. Conversely, "ServerIndex" already implements mutex-based
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55 * locking.
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56 **/
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57
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58 namespace Orthanc
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59 {
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60 ServerContext::ServerContext(const boost::filesystem::path& storagePath,
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61 const boost::filesystem::path& indexPath) :
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62 storage_(storagePath.string()),
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63 index_(*this, indexPath.string()),
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64 accessor_(storage_),
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65 compressionEnabled_(false),
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66 provider_(*this),
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67 dicomCache_(provider_, DICOM_CACHE_SIZE)
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68 {
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69 scu_.SetLocalApplicationEntityTitle(GetGlobalStringParameter("DicomAet", "ORTHANC"));
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70 lua_.Execute(Orthanc::EmbeddedResources::LUA_TOOLBOX);
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71 }
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72
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73 void ServerContext::SetCompressionEnabled(bool enabled)
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74 {
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75 if (enabled)
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76 LOG(WARNING) << "Disk compression is enabled";
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77 else
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78 LOG(WARNING) << "Disk compression is disabled";
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79
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80 compressionEnabled_ = enabled;
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81 }
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82
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83 void ServerContext::RemoveFile(const std::string& fileUuid)
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84 {
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85 storage_.Remove(fileUuid);
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86 }
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87
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88 StoreStatus ServerContext::Store(const char* dicomInstance,
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89 size_t dicomSize,
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90 const DicomMap& dicomSummary,
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91 const Json::Value& dicomJson,
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92 const std::string& remoteAet)
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93 {
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94 // Test if the instance must be filtered out
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95 if (lua_.IsExistingFunction(RECEIVED_INSTANCE_FILTER))
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96 {
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97 Json::Value simplified;
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98 SimplifyTags(simplified, dicomJson);
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99
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100 LuaFunctionCall call(lua_, RECEIVED_INSTANCE_FILTER);
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101 call.PushJSON(simplified);
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102 call.PushString(remoteAet);
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103
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104 if (!call.ExecutePredicate())
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105 {
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106 LOG(INFO) << "An incoming instance has been discarded by the filter";
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107 return StoreStatus_FilteredOut;
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108 }
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109 }
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110
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111 if (compressionEnabled_)
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112 {
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113 accessor_.SetCompressionForNextOperations(CompressionType_Zlib);
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114 }
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115 else
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116 {
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117 accessor_.SetCompressionForNextOperations(CompressionType_None);
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118 }
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119
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120 FileInfo dicomInfo = accessor_.Write(dicomInstance, dicomSize, FileContentType_Dicom);
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121 FileInfo jsonInfo = accessor_.Write(dicomJson.toStyledString(), FileContentType_DicomAsJson);
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122
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123 ServerIndex::Attachments attachments;
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124 attachments.push_back(dicomInfo);
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125 attachments.push_back(jsonInfo);
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126
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127 StoreStatus status = index_.Store(dicomSummary, attachments, remoteAet);
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128
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129 if (status != StoreStatus_Success)
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130 {
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131 storage_.Remove(dicomInfo.GetUuid());
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132 storage_.Remove(jsonInfo.GetUuid());
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133 }
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134
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135 switch (status)
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136 {
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diff changeset
137 case StoreStatus_Success:
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138 LOG(INFO) << "New instance stored";
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diff changeset
139 break;
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diff changeset
140
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diff changeset
141 case StoreStatus_AlreadyStored:
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142 LOG(INFO) << "Already stored";
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diff changeset
143 break;
224
4eb0c7ce86c9 refactoring for store
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diff changeset
144
397
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diff changeset
145 case StoreStatus_Failure:
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diff changeset
146 LOG(ERROR) << "Store failure";
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diff changeset
147 break;
224
4eb0c7ce86c9 refactoring for store
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148
397
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diff changeset
149 default:
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diff changeset
150 // This should never happen
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diff changeset
151 break;
224
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152 }
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153
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diff changeset
154 return status;
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parents:
diff changeset
155 }
226
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parents: 224
diff changeset
156
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diff changeset
157
697
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diff changeset
158 void ServerContext::AnswerDicomFile(RestApiOutput& output,
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159 const std::string& instancePublicId,
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diff changeset
160 FileContentType content)
226
8a26a8e85edf refactoring to read files
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diff changeset
161 {
232
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diff changeset
162 FileInfo attachment;
236
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diff changeset
163 if (!index_.LookupAttachment(attachment, instancePublicId, content))
232
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diff changeset
164 {
236
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diff changeset
165 throw OrthancException(ErrorCode_InternalError);
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parents: 233
diff changeset
166 }
226
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diff changeset
167
236
6d9be2b470b4 compression
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diff changeset
168 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
320
1b0ffed55ab0 fix download dicom
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diff changeset
169
236
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diff changeset
170 std::auto_ptr<HttpFileSender> sender(accessor_.ConstructHttpFileSender(attachment.GetUuid()));
320
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diff changeset
171 sender->SetContentType("application/dicom");
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diff changeset
172 sender->SetDownloadFilename(instancePublicId + ".dcm");
236
6d9be2b470b4 compression
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diff changeset
173 output.AnswerFile(*sender);
226
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parents: 224
diff changeset
174 }
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parents: 224
diff changeset
175
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parents: 224
diff changeset
176
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diff changeset
177 void ServerContext::ReadJson(Json::Value& result,
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diff changeset
178 const std::string& instancePublicId)
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diff changeset
179 {
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diff changeset
180 std::string s;
697
dd1ce9a2844c access to attachments
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diff changeset
181 ReadFile(s, instancePublicId, FileContentType_DicomAsJson);
226
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parents: 224
diff changeset
182
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diff changeset
183 Json::Reader reader;
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diff changeset
184 if (!reader.parse(s, result))
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parents: 224
diff changeset
185 {
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diff changeset
186 throw OrthancException("Corrupted JSON file");
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diff changeset
187 }
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parents: 224
diff changeset
188 }
227
209ca3f6db62 dicom-scu from rest
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parents: 226
diff changeset
189
209ca3f6db62 dicom-scu from rest
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parents: 226
diff changeset
190
209ca3f6db62 dicom-scu from rest
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parents: 226
diff changeset
191 void ServerContext::ReadFile(std::string& result,
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parents: 226
diff changeset
192 const std::string& instancePublicId,
697
dd1ce9a2844c access to attachments
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diff changeset
193 FileContentType content,
dd1ce9a2844c access to attachments
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diff changeset
194 bool uncompressIfNeeded)
227
209ca3f6db62 dicom-scu from rest
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parents: 226
diff changeset
195 {
232
5368bbe813cf refactoring of attachments
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parents: 227
diff changeset
196 FileInfo attachment;
5368bbe813cf refactoring of attachments
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parents: 227
diff changeset
197 if (!index_.LookupAttachment(attachment, instancePublicId, content))
227
209ca3f6db62 dicom-scu from rest
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parents: 226
diff changeset
198 {
209ca3f6db62 dicom-scu from rest
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diff changeset
199 throw OrthancException(ErrorCode_InternalError);
209ca3f6db62 dicom-scu from rest
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parents: 226
diff changeset
200 }
209ca3f6db62 dicom-scu from rest
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parents: 226
diff changeset
201
697
dd1ce9a2844c access to attachments
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parents: 696
diff changeset
202 if (uncompressIfNeeded)
dd1ce9a2844c access to attachments
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diff changeset
203 {
dd1ce9a2844c access to attachments
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diff changeset
204 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
dd1ce9a2844c access to attachments
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diff changeset
205 }
dd1ce9a2844c access to attachments
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parents: 696
diff changeset
206 else
dd1ce9a2844c access to attachments
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diff changeset
207 {
dd1ce9a2844c access to attachments
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diff changeset
208 accessor_.SetCompressionForNextOperations(CompressionType_None);
dd1ce9a2844c access to attachments
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diff changeset
209 }
dd1ce9a2844c access to attachments
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parents: 696
diff changeset
210
232
5368bbe813cf refactoring of attachments
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parents: 227
diff changeset
211 accessor_.Read(result, attachment.GetUuid());
227
209ca3f6db62 dicom-scu from rest
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parents: 226
diff changeset
212 }
285
4031f73fe0e4 access to the raw dicom tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 269
diff changeset
213
4031f73fe0e4 access to the raw dicom tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 269
diff changeset
214
4031f73fe0e4 access to the raw dicom tags
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parents: 269
diff changeset
215 IDynamicObject* ServerContext::DicomCacheProvider::Provide(const std::string& instancePublicId)
4031f73fe0e4 access to the raw dicom tags
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parents: 269
diff changeset
216 {
4031f73fe0e4 access to the raw dicom tags
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parents: 269
diff changeset
217 std::string content;
4031f73fe0e4 access to the raw dicom tags
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parents: 269
diff changeset
218 context_.ReadFile(content, instancePublicId, FileContentType_Dicom);
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parents: 269
diff changeset
219 return new ParsedDicomFile(content);
4031f73fe0e4 access to the raw dicom tags
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parents: 269
diff changeset
220 }
4031f73fe0e4 access to the raw dicom tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 269
diff changeset
221
4031f73fe0e4 access to the raw dicom tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 269
diff changeset
222
4031f73fe0e4 access to the raw dicom tags
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parents: 269
diff changeset
223 ParsedDicomFile& ServerContext::GetDicomFile(const std::string& instancePublicId)
4031f73fe0e4 access to the raw dicom tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 269
diff changeset
224 {
291
4d7469f72a0b embedding of dicom dictionaries
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 288
diff changeset
225 #if ENABLE_DICOM_CACHE == 0
4d7469f72a0b embedding of dicom dictionaries
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 288
diff changeset
226 static std::auto_ptr<IDynamicObject> p;
4d7469f72a0b embedding of dicom dictionaries
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 288
diff changeset
227 p.reset(provider_.Provide(instancePublicId));
4d7469f72a0b embedding of dicom dictionaries
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 288
diff changeset
228 return dynamic_cast<ParsedDicomFile&>(*p);
4d7469f72a0b embedding of dicom dictionaries
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 288
diff changeset
229 #else
285
4031f73fe0e4 access to the raw dicom tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 269
diff changeset
230 return dynamic_cast<ParsedDicomFile&>(dicomCache_.Access(instancePublicId));
291
4d7469f72a0b embedding of dicom dictionaries
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 288
diff changeset
231 #endif
285
4031f73fe0e4 access to the raw dicom tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 269
diff changeset
232 }
304
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
233
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
234
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
235 StoreStatus ServerContext::Store(std::string& resultPublicId,
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
236 DcmFileFormat& dicomInstance,
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
237 const char* dicomBuffer,
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
238 size_t dicomSize)
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
239 {
4eea080e6e7a refactoring
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parents: 291
diff changeset
240 DicomMap dicomSummary;
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
241 FromDcmtkBridge::Convert(dicomSummary, *dicomInstance.getDataset());
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
242
730
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
243 try
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
244 {
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
245 DicomInstanceHasher hasher(dicomSummary);
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
246 resultPublicId = hasher.HashInstance();
304
4eea080e6e7a refactoring
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parents: 291
diff changeset
247
730
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
248 Json::Value dicomJson;
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
249 FromDcmtkBridge::ToJson(dicomJson, *dicomInstance.getDataset());
304
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
250
730
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
251 StoreStatus status = StoreStatus_Failure;
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
252 if (dicomSize > 0)
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
253 {
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
254 status = Store(dicomBuffer, dicomSize, dicomSummary, dicomJson, "");
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
255 }
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
256
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
257 return status;
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
258 }
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
259 catch (OrthancException& e)
304
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
260 {
730
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
261 if (e.GetErrorCode() == ErrorCode_InexistentTag)
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
262 {
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
263 LogMissingRequiredTag(dicomSummary);
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
264 }
304
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
265
730
309e686b41e7 better logging about nonexistent tags
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 699
diff changeset
266 throw e;
309e686b41e7 better logging about nonexistent tags
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parents: 699
diff changeset
267 }
304
4eea080e6e7a refactoring
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parents: 291
diff changeset
268 }
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
269
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
270
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
271 StoreStatus ServerContext::Store(std::string& resultPublicId,
4eea080e6e7a refactoring
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parents: 291
diff changeset
272 DcmFileFormat& dicomInstance)
4eea080e6e7a refactoring
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parents: 291
diff changeset
273 {
4eea080e6e7a refactoring
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parents: 291
diff changeset
274 std::string buffer;
4eea080e6e7a refactoring
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parents: 291
diff changeset
275 if (!FromDcmtkBridge::SaveToMemoryBuffer(buffer, dicomInstance.getDataset()))
4eea080e6e7a refactoring
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parents: 291
diff changeset
276 {
4eea080e6e7a refactoring
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parents: 291
diff changeset
277 throw OrthancException(ErrorCode_InternalError);
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
278 }
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
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279
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280 if (buffer.size() == 0)
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281 return Store(resultPublicId, dicomInstance, NULL, 0);
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282 else
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283 return Store(resultPublicId, dicomInstance, &buffer[0], buffer.size());
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284 }
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285
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286
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287 StoreStatus ServerContext::Store(std::string& resultPublicId,
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288 const char* dicomBuffer,
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289 size_t dicomSize)
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290 {
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291 ParsedDicomFile dicom(dicomBuffer, dicomSize);
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292 return Store(resultPublicId, dicom.GetDicom(), dicomBuffer, dicomSize);
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293 }
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294
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295 void ServerContext::SetStoreMD5ForAttachments(bool storeMD5)
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296 {
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297 LOG(INFO) << "Storing MD5 for attachments: " << (storeMD5 ? "yes" : "no");
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298 accessor_.SetStoreMD5(storeMD5);
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299 }
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300
699
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301
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302 bool ServerContext::AddAttachment(const std::string& resourceId,
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303 FileContentType attachmentType,
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304 const void* data,
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305 size_t size)
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306 {
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307 LOG(INFO) << "Adding attachment " << EnumerationToString(attachmentType) << " to resource " << resourceId;
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308
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309 if (compressionEnabled_)
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310 {
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311 accessor_.SetCompressionForNextOperations(CompressionType_Zlib);
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312 }
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313 else
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314 {
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315 accessor_.SetCompressionForNextOperations(CompressionType_None);
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316 }
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317
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318 FileInfo info = accessor_.Write(data, size, attachmentType);
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319 StoreStatus status = index_.AddAttachment(info, resourceId);
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320
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321 if (status != StoreStatus_Success)
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322 {
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323 storage_.Remove(info.GetUuid());
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324 return false;
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325 }
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326 else
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327 {
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328 return true;
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329 }
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330 }
224
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331 }