Mercurial > hg > orthanc

annotate OrthancServer/ServerContext.cpp @ 998:4136fab6a639 lua-scripting

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callback on stored instance
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 03 Jul 2014 18:30:23 +0200
parents 1b1d51e9f1a2
children f3929718ea7e
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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 static const char* ON_STORED_INSTANCE = "OnStoredInstance";
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50
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51 static const size_t DICOM_CACHE_SIZE = 2;
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52
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53 /**
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54 * IMPORTANT: We make the assumption that the same instance of
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55 * FileStorage can be accessed from multiple threads. This seems OK
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56 * since the filesystem implements the required locking mechanisms,
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57 * but maybe a read-writer lock on the "FileStorage" could be
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58 * useful. Conversely, "ServerIndex" already implements mutex-based
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59 * locking.
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60 **/
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61
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62 namespace Orthanc
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63 {
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64 ServerContext::ServerContext(const boost::filesystem::path& storagePath,
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65 const boost::filesystem::path& indexPath) :
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66 storage_(storagePath.string()),
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67 index_(*this, indexPath.string()),
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68 accessor_(storage_),
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69 compressionEnabled_(false),
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70 provider_(*this),
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71 dicomCache_(provider_, DICOM_CACHE_SIZE),
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72 scheduler_(Configuration::GetGlobalIntegerParameter("LimitJobs", 10))
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73 {
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74 scu_.SetLocalApplicationEntityTitle(Configuration::GetGlobalStringParameter("DicomAet", "ORTHANC"));
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75 //scu_.SetMillisecondsBeforeClose(1); // The connection is always released
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76
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77 lua_.Execute(Orthanc::EmbeddedResources::LUA_TOOLBOX);
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78 }
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79
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80 void ServerContext::SetCompressionEnabled(bool enabled)
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81 {
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82 if (enabled)
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83 LOG(WARNING) << "Disk compression is enabled";
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84 else
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85 LOG(WARNING) << "Disk compression is disabled";
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86
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87 compressionEnabled_ = enabled;
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88 }
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89
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90 void ServerContext::RemoveFile(const std::string& fileUuid)
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91 {
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92 storage_.Remove(fileUuid);
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93 }
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94
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96 bool ServerContext::ApplyReceivedInstanceFilter(const Json::Value& simplified,
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97 const std::string& remoteAet)
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98 {
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99 LuaContextLocker locker(*this);
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100
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101 if (locker.GetLua().IsExistingFunction(RECEIVED_INSTANCE_FILTER))
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102 {
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103 LuaFunctionCall call(locker.GetLua(), RECEIVED_INSTANCE_FILTER);
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104 call.PushJson(simplified);
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105 call.PushString(remoteAet);
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106
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107 if (!call.ExecutePredicate())
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108 {
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109 return false;
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110 }
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111 }
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112
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113 return true;
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114 }
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115
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116
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117 void ServerContext::ApplyOnStoredInstance(const Json::Value& simplified,
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118 const std::string& instanceId)
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119 {
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120 LuaContextLocker locker(*this);
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121
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122 if (locker.GetLua().IsExistingFunction(ON_STORED_INSTANCE))
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123 {
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124 LuaFunctionCall call(locker.GetLua(), ON_STORED_INSTANCE);
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125 call.PushJson(simplified);
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126 call.PushString(instanceId);
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127
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128 Json::Value result;
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129 call.ExecuteToJson(result);
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130
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131 printf("TODO\n");
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132 std::cout << result;
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133 }
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134 }
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135
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136
304
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137 StoreStatus ServerContext::Store(const char* dicomInstance,
224
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138 size_t dicomSize,
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139 const DicomMap& dicomSummary,
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140 const Json::Value& dicomJson,
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141 const std::string& remoteAet)
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142 {
998
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143 Json::Value simplified;
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144 SimplifyTags(simplified, dicomJson);
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145
397
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146 // Test if the instance must be filtered out
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147 if (!ApplyReceivedInstanceFilter(simplified, remoteAet))
397
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148 {
996
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149 LOG(INFO) << "An incoming instance has been discarded by the filter";
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150 return StoreStatus_FilteredOut;
397
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151 }
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152
236
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153 if (compressionEnabled_)
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154 {
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155 accessor_.SetCompressionForNextOperations(CompressionType_Zlib);
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156 }
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157 else
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158 {
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159 accessor_.SetCompressionForNextOperations(CompressionType_None);
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160 }
232
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161
304
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162 FileInfo dicomInfo = accessor_.Write(dicomInstance, dicomSize, FileContentType_Dicom);
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163 FileInfo jsonInfo = accessor_.Write(dicomJson.toStyledString(), FileContentType_DicomAsJson);
232
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164
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165 ServerIndex::Attachments attachments;
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166 attachments.push_back(dicomInfo);
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167 attachments.push_back(jsonInfo);
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168
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169 StoreStatus status = index_.Store(dicomSummary, attachments, remoteAet);
224
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170
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171 if (status != StoreStatus_Success)
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172 {
232
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173 storage_.Remove(dicomInfo.GetUuid());
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174 storage_.Remove(jsonInfo.GetUuid());
224
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175 }
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176
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177 switch (status)
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178 {
397
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179 case StoreStatus_Success:
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180 LOG(INFO) << "New instance stored";
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181 break;
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182
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183 case StoreStatus_AlreadyStored:
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184 LOG(INFO) << "Already stored";
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185 break;
224
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186
397
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187 case StoreStatus_Failure:
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188 LOG(ERROR) << "Store failure";
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189 break;
224
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190
397
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191 default:
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192 // This should never happen
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193 break;
224
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194 }
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195
998
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196 if (status == StoreStatus_Success ||
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197 status == StoreStatus_AlreadyStored)
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198 {
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199 DicomInstanceHasher hasher(dicomSummary);
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200 ApplyOnStoredInstance(simplified, hasher.HashInstance());
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201 }
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diff changeset
202
224
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203 return status;
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204 }
226
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diff changeset
205
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diff changeset
206
697
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207 void ServerContext::AnswerDicomFile(RestApiOutput& output,
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208 const std::string& instancePublicId,
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209 FileContentType content)
226
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diff changeset
210 {
232
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diff changeset
211 FileInfo attachment;
236
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diff changeset
212 if (!index_.LookupAttachment(attachment, instancePublicId, content))
232
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diff changeset
213 {
236
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diff changeset
214 throw OrthancException(ErrorCode_InternalError);
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215 }
226
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diff changeset
216
236
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diff changeset
217 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
320
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diff changeset
218
236
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219 std::auto_ptr<HttpFileSender> sender(accessor_.ConstructHttpFileSender(attachment.GetUuid()));
320
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diff changeset
220 sender->SetContentType("application/dicom");
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221 sender->SetDownloadFilename(instancePublicId + ".dcm");
236
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diff changeset
222 output.AnswerFile(*sender);
226
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diff changeset
223 }
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parents: 224
diff changeset
224
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diff changeset
225
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diff changeset
226 void ServerContext::ReadJson(Json::Value& result,
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227 const std::string& instancePublicId)
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diff changeset
228 {
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diff changeset
229 std::string s;
697
dd1ce9a2844c access to attachments
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diff changeset
230 ReadFile(s, instancePublicId, FileContentType_DicomAsJson);
226
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diff changeset
231
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diff changeset
232 Json::Reader reader;
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diff changeset
233 if (!reader.parse(s, result))
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diff changeset
234 {
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diff changeset
235 throw OrthancException("Corrupted JSON file");
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diff changeset
236 }
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diff changeset
237 }
227
209ca3f6db62 dicom-scu from rest
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diff changeset
238
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diff changeset
239
209ca3f6db62 dicom-scu from rest
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diff changeset
240 void ServerContext::ReadFile(std::string& result,
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diff changeset
241 const std::string& instancePublicId,
697
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diff changeset
242 FileContentType content,
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diff changeset
243 bool uncompressIfNeeded)
227
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diff changeset
244 {
232
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diff changeset
245 FileInfo attachment;
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diff changeset
246 if (!index_.LookupAttachment(attachment, instancePublicId, content))
227
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diff changeset
247 {
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diff changeset
248 throw OrthancException(ErrorCode_InternalError);
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diff changeset
249 }
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diff changeset
250
697
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diff changeset
251 if (uncompressIfNeeded)
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diff changeset
252 {
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diff changeset
253 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
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diff changeset
254 }
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diff changeset
255 else
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diff changeset
256 {
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diff changeset
257 accessor_.SetCompressionForNextOperations(CompressionType_None);
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diff changeset
258 }
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diff changeset
259
232
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diff changeset
260 accessor_.Read(result, attachment.GetUuid());
227
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diff changeset
261 }
285
4031f73fe0e4 access to the raw dicom tags
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parents: 269
diff changeset
262
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parents: 269
diff changeset
263
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parents: 269
diff changeset
264 IDynamicObject* ServerContext::DicomCacheProvider::Provide(const std::string& instancePublicId)
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diff changeset
265 {
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diff changeset
266 std::string content;
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diff changeset
267 context_.ReadFile(content, instancePublicId, FileContentType_Dicom);
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diff changeset
268 return new ParsedDicomFile(content);
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diff changeset
269 }
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parents: 269
diff changeset
270
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parents: 269
diff changeset
271
778
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parents: 774
diff changeset
272 ServerContext::DicomCacheLocker::DicomCacheLocker(ServerContext& that,
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diff changeset
273 const std::string& instancePublicId) :
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diff changeset
274 that_(that)
285
4031f73fe0e4 access to the raw dicom tags
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diff changeset
275 {
291
4d7469f72a0b embedding of dicom dictionaries
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diff changeset
276 #if ENABLE_DICOM_CACHE == 0
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diff changeset
277 static std::auto_ptr<IDynamicObject> p;
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278 p.reset(provider_.Provide(instancePublicId));
778
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279 dicom_ = dynamic_cast<ParsedDicomFile*>(p.get());
291
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diff changeset
280 #else
778
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diff changeset
281 that_.dicomCacheMutex_.lock();
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282 dicom_ = &dynamic_cast<ParsedDicomFile&>(that_.dicomCache_.Access(instancePublicId));
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283 #endif
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284 }
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285
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286
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diff changeset
287 ServerContext::DicomCacheLocker::~DicomCacheLocker()
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288 {
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diff changeset
289 #if ENABLE_DICOM_CACHE == 0
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290 #else
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diff changeset
291 that_.dicomCacheMutex_.unlock();
291
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diff changeset
292 #endif
285
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diff changeset
293 }
304
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diff changeset
294
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295
792
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diff changeset
296 static DcmFileFormat& GetDicom(ParsedDicomFile& file)
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297 {
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298 return *reinterpret_cast<DcmFileFormat*>(file.GetDcmtkObject());
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299 }
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300
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diff changeset
301
304
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diff changeset
302 StoreStatus ServerContext::Store(std::string& resultPublicId,
791
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303 ParsedDicomFile& dicomInstance,
304
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diff changeset
304 const char* dicomBuffer,
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diff changeset
305 size_t dicomSize)
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diff changeset
306 {
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diff changeset
307 DicomMap dicomSummary;
792
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diff changeset
308 FromDcmtkBridge::Convert(dicomSummary, *GetDicom(dicomInstance).getDataset());
304
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diff changeset
309
730
309e686b41e7 better logging about nonexistent tags
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diff changeset
310 try
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diff changeset
311 {
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diff changeset
312 DicomInstanceHasher hasher(dicomSummary);
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diff changeset
313 resultPublicId = hasher.HashInstance();
304
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diff changeset
314
730
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diff changeset
315 Json::Value dicomJson;
792
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diff changeset
316 FromDcmtkBridge::ToJson(dicomJson, *GetDicom(dicomInstance).getDataset());
304
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diff changeset
317
730
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diff changeset
318 StoreStatus status = StoreStatus_Failure;
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diff changeset
319 if (dicomSize > 0)
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diff changeset
320 {
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diff changeset
321 status = Store(dicomBuffer, dicomSize, dicomSummary, dicomJson, "");
309e686b41e7 better logging about nonexistent tags
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322 }
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323
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diff changeset
324 return status;
309e686b41e7 better logging about nonexistent tags
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diff changeset
325 }
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diff changeset
326 catch (OrthancException& e)
304
4eea080e6e7a refactoring
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diff changeset
327 {
730
309e686b41e7 better logging about nonexistent tags
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diff changeset
328 if (e.GetErrorCode() == ErrorCode_InexistentTag)
309e686b41e7 better logging about nonexistent tags
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diff changeset
329 {
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diff changeset
330 LogMissingRequiredTag(dicomSummary);
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diff changeset
331 }
304
4eea080e6e7a refactoring
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diff changeset
332
942
b3f6fb1130cd fixes thanks to cppcheck
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diff changeset
333 throw;
730
309e686b41e7 better logging about nonexistent tags
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334 }
304
4eea080e6e7a refactoring
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diff changeset
335 }
4eea080e6e7a refactoring
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diff changeset
336
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diff changeset
337
4eea080e6e7a refactoring
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diff changeset
338 StoreStatus ServerContext::Store(std::string& resultPublicId,
791
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diff changeset
339 ParsedDicomFile& dicomInstance)
304
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diff changeset
340 {
4eea080e6e7a refactoring
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diff changeset
341 std::string buffer;
792
111a1738e11e refactoring
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diff changeset
342 if (!FromDcmtkBridge::SaveToMemoryBuffer(buffer, GetDicom(dicomInstance).getDataset()))
304
4eea080e6e7a refactoring
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diff changeset
343 {
4eea080e6e7a refactoring
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diff changeset
344 throw OrthancException(ErrorCode_InternalError);
4eea080e6e7a refactoring
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diff changeset
345 }
4eea080e6e7a refactoring
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diff changeset
346
4eea080e6e7a refactoring
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diff changeset
347 if (buffer.size() == 0)
4eea080e6e7a refactoring
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diff changeset
348 return Store(resultPublicId, dicomInstance, NULL, 0);
4eea080e6e7a refactoring
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diff changeset
349 else
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diff changeset
350 return Store(resultPublicId, dicomInstance, &buffer[0], buffer.size());
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diff changeset
351 }
4eea080e6e7a refactoring
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parents: 291
diff changeset
352
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
353
4eea080e6e7a refactoring
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diff changeset
354 StoreStatus ServerContext::Store(std::string& resultPublicId,
4eea080e6e7a refactoring
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diff changeset
355 const char* dicomBuffer,
4eea080e6e7a refactoring
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diff changeset
356 size_t dicomSize)
4eea080e6e7a refactoring
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diff changeset
357 {
4eea080e6e7a refactoring
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diff changeset
358 ParsedDicomFile dicom(dicomBuffer, dicomSize);
791
381f90e2b69d refactoring
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diff changeset
359 return Store(resultPublicId, dicom, dicomBuffer, dicomSize);
304
4eea080e6e7a refactoring
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parents: 291
diff changeset
360 }
4eea080e6e7a refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 291
diff changeset
361
791
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
362
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
363 StoreStatus ServerContext::Store(std::string& resultPublicId,
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
364 const std::string& dicomContent)
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
365 {
381f90e2b69d refactoring
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parents: 778
diff changeset
366 if (dicomContent.size() == 0)
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
367 {
381f90e2b69d refactoring
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parents: 778
diff changeset
368 return Store(resultPublicId, NULL, 0);
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
369 }
381f90e2b69d refactoring
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parents: 778
diff changeset
370 else
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
371 {
381f90e2b69d refactoring
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parents: 778
diff changeset
372 return Store(resultPublicId, &dicomContent[0], dicomContent.size());
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
373 }
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
374 }
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
375
381f90e2b69d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 778
diff changeset
376
695
c59bc408fb10 parameter to disable the computation of the MD5
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 689
diff changeset
377 void ServerContext::SetStoreMD5ForAttachments(bool storeMD5)
c59bc408fb10 parameter to disable the computation of the MD5
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diff changeset
378 {
c59bc408fb10 parameter to disable the computation of the MD5
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diff changeset
379 LOG(INFO) << "Storing MD5 for attachments: " << (storeMD5 ? "yes" : "no");
c59bc408fb10 parameter to disable the computation of the MD5
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
380 accessor_.SetStoreMD5(storeMD5);
c59bc408fb10 parameter to disable the computation of the MD5
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parents: 689
diff changeset
381 }
c59bc408fb10 parameter to disable the computation of the MD5
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parents: 689
diff changeset
382
699
2929e17f8447 add attachments to resources
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parents: 697
diff changeset
383
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
384 bool ServerContext::AddAttachment(const std::string& resourceId,
2929e17f8447 add attachments to resources
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diff changeset
385 FileContentType attachmentType,
2929e17f8447 add attachments to resources
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diff changeset
386 const void* data,
2929e17f8447 add attachments to resources
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diff changeset
387 size_t size)
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
388 {
2929e17f8447 add attachments to resources
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parents: 697
diff changeset
389 LOG(INFO) << "Adding attachment " << EnumerationToString(attachmentType) << " to resource " << resourceId;
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
390
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
391 if (compressionEnabled_)
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
392 {
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
393 accessor_.SetCompressionForNextOperations(CompressionType_Zlib);
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
394 }
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
395 else
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
396 {
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
397 accessor_.SetCompressionForNextOperations(CompressionType_None);
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
398 }
2929e17f8447 add attachments to resources
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parents: 697
diff changeset
399
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
400 FileInfo info = accessor_.Write(data, size, attachmentType);
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
401 StoreStatus status = index_.AddAttachment(info, resourceId);
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
402
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
403 if (status != StoreStatus_Success)
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
404 {
2929e17f8447 add attachments to resources
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parents: 697
diff changeset
405 storage_.Remove(info.GetUuid());
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
406 return false;
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
407 }
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
408 else
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
409 {
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
410 return true;
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
411 }
2929e17f8447 add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 697
diff changeset
412 }
224
4eb0c7ce86c9 refactoring for store
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
413 }