Mercurial > hg > orthanc

annotate OrthancServer/ServerContext.cpp @ 995:8c67382f44a7 lua-scripting

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limit number of jobs in the scheduler
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 03 Jul 2014 15:58:53 +0200
parents b3f6fb1130cd
children cf52f3bcb2b3
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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 "PrecompiledHeadersServer.h"
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34 #include "ServerContext.h"
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35
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36 #include "../Core/HttpServer/FilesystemHttpSender.h"
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37 #include "../Core/Lua/LuaFunctionCall.h"
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38 #include "FromDcmtkBridge.h"
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39 #include "ServerToolbox.h"
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40 #include "OrthancInitialization.h"
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41
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42 #include <glog/logging.h>
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43 #include <EmbeddedResources.h>
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44 #include <dcmtk/dcmdata/dcfilefo.h>
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45
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46 #define ENABLE_DICOM_CACHE 1
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47
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48 static const char* RECEIVED_INSTANCE_FILTER = "ReceivedInstanceFilter";
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49
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50 static const size_t DICOM_CACHE_SIZE = 2;
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51
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52 /**
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53 * IMPORTANT: We make the assumption that the same instance of
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54 * FileStorage can be accessed from multiple threads. This seems OK
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55 * since the filesystem implements the required locking mechanisms,
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56 * but maybe a read-writer lock on the "FileStorage" could be
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57 * useful. Conversely, "ServerIndex" already implements mutex-based
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58 * locking.
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59 **/
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60
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61 namespace Orthanc
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62 {
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63 ServerContext::ServerContext(const boost::filesystem::path& storagePath,
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64 const boost::filesystem::path& indexPath) :
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65 storage_(storagePath.string()),
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66 index_(*this, indexPath.string()),
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67 accessor_(storage_),
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68 compressionEnabled_(false),
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69 provider_(*this),
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70 dicomCache_(provider_, DICOM_CACHE_SIZE),
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71 scheduler_(Configuration::GetGlobalIntegerParameter("LimitJobs", 10))
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72 {
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73 scu_.SetLocalApplicationEntityTitle(Configuration::GetGlobalStringParameter("DicomAet", "ORTHANC"));
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74 //scu_.SetMillisecondsBeforeClose(1); // The connection is always released
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75
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76 lua_.Execute(Orthanc::EmbeddedResources::LUA_TOOLBOX);
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77 }
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78
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79 void ServerContext::SetCompressionEnabled(bool enabled)
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80 {
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81 if (enabled)
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82 LOG(WARNING) << "Disk compression is enabled";
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83 else
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84 LOG(WARNING) << "Disk compression is disabled";
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85
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86 compressionEnabled_ = enabled;
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87 }
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88
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89 void ServerContext::RemoveFile(const std::string& fileUuid)
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90 {
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91 storage_.Remove(fileUuid);
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92 }
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93
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94 StoreStatus ServerContext::Store(const char* dicomInstance,
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95 size_t dicomSize,
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96 const DicomMap& dicomSummary,
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97 const Json::Value& dicomJson,
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98 const std::string& remoteAet)
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99 {
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100 // Test if the instance must be filtered out
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101 if (lua_.IsExistingFunction(RECEIVED_INSTANCE_FILTER))
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102 {
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103 Json::Value simplified;
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104 SimplifyTags(simplified, dicomJson);
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105
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106 LuaFunctionCall call(lua_, RECEIVED_INSTANCE_FILTER);
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107 call.PushJSON(simplified);
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108 call.PushString(remoteAet);
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109
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110 if (!call.ExecutePredicate())
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111 {
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112 LOG(INFO) << "An incoming instance has been discarded by the filter";
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113 return StoreStatus_FilteredOut;
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114 }
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115 }
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116
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117 if (compressionEnabled_)
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118 {
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119 accessor_.SetCompressionForNextOperations(CompressionType_Zlib);
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120 }
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121 else
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122 {
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123 accessor_.SetCompressionForNextOperations(CompressionType_None);
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124 }
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125
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126 FileInfo dicomInfo = accessor_.Write(dicomInstance, dicomSize, FileContentType_Dicom);
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127 FileInfo jsonInfo = accessor_.Write(dicomJson.toStyledString(), FileContentType_DicomAsJson);
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128
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129 ServerIndex::Attachments attachments;
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130 attachments.push_back(dicomInfo);
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131 attachments.push_back(jsonInfo);
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132
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133 StoreStatus status = index_.Store(dicomSummary, attachments, remoteAet);
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134
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135 if (status != StoreStatus_Success)
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136 {
232
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137 storage_.Remove(dicomInfo.GetUuid());
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138 storage_.Remove(jsonInfo.GetUuid());
224
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139 }
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140
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141 switch (status)
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142 {
397
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143 case StoreStatus_Success:
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144 LOG(INFO) << "New instance stored";
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145 break;
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146
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147 case StoreStatus_AlreadyStored:
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148 LOG(INFO) << "Already stored";
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149 break;
224
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150
397
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151 case StoreStatus_Failure:
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152 LOG(ERROR) << "Store failure";
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153 break;
224
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154
397
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155 default:
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156 // This should never happen
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157 break;
224
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158 }
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159
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160 return status;
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161 }
226
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162
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163
697
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164 void ServerContext::AnswerDicomFile(RestApiOutput& output,
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165 const std::string& instancePublicId,
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166 FileContentType content)
226
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167 {
232
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168 FileInfo attachment;
236
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169 if (!index_.LookupAttachment(attachment, instancePublicId, content))
232
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170 {
236
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171 throw OrthancException(ErrorCode_InternalError);
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172 }
226
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173
236
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174 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
320
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175
236
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176 std::auto_ptr<HttpFileSender> sender(accessor_.ConstructHttpFileSender(attachment.GetUuid()));
320
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177 sender->SetContentType("application/dicom");
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178 sender->SetDownloadFilename(instancePublicId + ".dcm");
236
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179 output.AnswerFile(*sender);
226
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180 }
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181
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182
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183 void ServerContext::ReadJson(Json::Value& result,
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184 const std::string& instancePublicId)
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185 {
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186 std::string s;
697
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187 ReadFile(s, instancePublicId, FileContentType_DicomAsJson);
226
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188
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189 Json::Reader reader;
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190 if (!reader.parse(s, result))
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191 {
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192 throw OrthancException("Corrupted JSON file");
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193 }
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194 }
227
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195
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196
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197 void ServerContext::ReadFile(std::string& result,
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198 const std::string& instancePublicId,
697
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199 FileContentType content,
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200 bool uncompressIfNeeded)
227
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201 {
232
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202 FileInfo attachment;
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203 if (!index_.LookupAttachment(attachment, instancePublicId, content))
227
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204 {
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205 throw OrthancException(ErrorCode_InternalError);
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206 }
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diff changeset
207
697
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208 if (uncompressIfNeeded)
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209 {
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210 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
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211 }
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212 else
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213 {
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214 accessor_.SetCompressionForNextOperations(CompressionType_None);
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215 }
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216
232
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diff changeset
217 accessor_.Read(result, attachment.GetUuid());
227
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diff changeset
218 }
285
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diff changeset
219
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diff changeset
220
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diff changeset
221 IDynamicObject* ServerContext::DicomCacheProvider::Provide(const std::string& instancePublicId)
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diff changeset
222 {
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diff changeset
223 std::string content;
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diff changeset
224 context_.ReadFile(content, instancePublicId, FileContentType_Dicom);
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diff changeset
225 return new ParsedDicomFile(content);
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diff changeset
226 }
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diff changeset
227
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diff changeset
228
778
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diff changeset
229 ServerContext::DicomCacheLocker::DicomCacheLocker(ServerContext& that,
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diff changeset
230 const std::string& instancePublicId) :
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diff changeset
231 that_(that)
285
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diff changeset
232 {
291
4d7469f72a0b embedding of dicom dictionaries
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diff changeset
233 #if ENABLE_DICOM_CACHE == 0
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diff changeset
234 static std::auto_ptr<IDynamicObject> p;
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diff changeset
235 p.reset(provider_.Provide(instancePublicId));
778
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diff changeset
236 dicom_ = dynamic_cast<ParsedDicomFile*>(p.get());
291
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diff changeset
237 #else
778
aebf0071020e refactoring of the mutex for the dicom cache
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diff changeset
238 that_.dicomCacheMutex_.lock();
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diff changeset
239 dicom_ = &dynamic_cast<ParsedDicomFile&>(that_.dicomCache_.Access(instancePublicId));
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diff changeset
240 #endif
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diff changeset
241 }
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diff changeset
242
aebf0071020e refactoring of the mutex for the dicom cache
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diff changeset
243
aebf0071020e refactoring of the mutex for the dicom cache
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diff changeset
244 ServerContext::DicomCacheLocker::~DicomCacheLocker()
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245 {
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diff changeset
246 #if ENABLE_DICOM_CACHE == 0
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247 #else
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diff changeset
248 that_.dicomCacheMutex_.unlock();
291
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diff changeset
249 #endif
285
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diff changeset
250 }
304
4eea080e6e7a refactoring
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diff changeset
251
4eea080e6e7a refactoring
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diff changeset
252
792
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diff changeset
253 static DcmFileFormat& GetDicom(ParsedDicomFile& file)
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diff changeset
254 {
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diff changeset
255 return *reinterpret_cast<DcmFileFormat*>(file.GetDcmtkObject());
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diff changeset
256 }
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diff changeset
257
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diff changeset
258
304
4eea080e6e7a refactoring
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diff changeset
259 StoreStatus ServerContext::Store(std::string& resultPublicId,
791
381f90e2b69d refactoring
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diff changeset
260 ParsedDicomFile& dicomInstance,
304
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diff changeset
261 const char* dicomBuffer,
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diff changeset
262 size_t dicomSize)
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diff changeset
263 {
4eea080e6e7a refactoring
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diff changeset
264 DicomMap dicomSummary;
792
111a1738e11e refactoring
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diff changeset
265 FromDcmtkBridge::Convert(dicomSummary, *GetDicom(dicomInstance).getDataset());
304
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diff changeset
266
730
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diff changeset
267 try
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diff changeset
268 {
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diff changeset
269 DicomInstanceHasher hasher(dicomSummary);
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diff changeset
270 resultPublicId = hasher.HashInstance();
304
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diff changeset
271
730
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diff changeset
272 Json::Value dicomJson;
792
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diff changeset
273 FromDcmtkBridge::ToJson(dicomJson, *GetDicom(dicomInstance).getDataset());
304
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diff changeset
274
730
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diff changeset
275 StoreStatus status = StoreStatus_Failure;
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276 if (dicomSize > 0)
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277 {
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278 status = Store(dicomBuffer, dicomSize, dicomSummary, dicomJson, "");
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279 }
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280
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281 return status;
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282 }
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283 catch (OrthancException& e)
304
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284 {
730
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285 if (e.GetErrorCode() == ErrorCode_InexistentTag)
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286 {
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287 LogMissingRequiredTag(dicomSummary);
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288 }
304
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289
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290 throw;
730
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291 }
304
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292 }
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293
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294
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295 StoreStatus ServerContext::Store(std::string& resultPublicId,
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296 ParsedDicomFile& dicomInstance)
304
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297 {
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298 std::string buffer;
792
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299 if (!FromDcmtkBridge::SaveToMemoryBuffer(buffer, GetDicom(dicomInstance).getDataset()))
304
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300 {
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301 throw OrthancException(ErrorCode_InternalError);
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302 }
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303
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304 if (buffer.size() == 0)
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305 return Store(resultPublicId, dicomInstance, NULL, 0);
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306 else
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307 return Store(resultPublicId, dicomInstance, &buffer[0], buffer.size());
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308 }
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309
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310
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311 StoreStatus ServerContext::Store(std::string& resultPublicId,
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312 const char* dicomBuffer,
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313 size_t dicomSize)
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314 {
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315 ParsedDicomFile dicom(dicomBuffer, dicomSize);
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316 return Store(resultPublicId, dicom, dicomBuffer, dicomSize);
304
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317 }
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318
791
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319
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320 StoreStatus ServerContext::Store(std::string& resultPublicId,
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321 const std::string& dicomContent)
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322 {
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323 if (dicomContent.size() == 0)
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324 {
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325 return Store(resultPublicId, NULL, 0);
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326 }
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327 else
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328 {
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329 return Store(resultPublicId, &dicomContent[0], dicomContent.size());
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330 }
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331 }
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332
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333
695
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334 void ServerContext::SetStoreMD5ForAttachments(bool storeMD5)
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335 {
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336 LOG(INFO) << "Storing MD5 for attachments: " << (storeMD5 ? "yes" : "no");
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337 accessor_.SetStoreMD5(storeMD5);
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338 }
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339
699
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340
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341 bool ServerContext::AddAttachment(const std::string& resourceId,
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342 FileContentType attachmentType,
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343 const void* data,
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344 size_t size)
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345 {
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346 LOG(INFO) << "Adding attachment " << EnumerationToString(attachmentType) << " to resource " << resourceId;
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347
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348 if (compressionEnabled_)
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349 {
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350 accessor_.SetCompressionForNextOperations(CompressionType_Zlib);
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351 }
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352 else
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353 {
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354 accessor_.SetCompressionForNextOperations(CompressionType_None);
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355 }
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356
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357 FileInfo info = accessor_.Write(data, size, attachmentType);
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358 StoreStatus status = index_.AddAttachment(info, resourceId);
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359
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360 if (status != StoreStatus_Success)
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361 {
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362 storage_.Remove(info.GetUuid());
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363 return false;
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364 }
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365 else
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366 {
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367 return true;
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368 }
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369 }
224
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370 }