Mercurial > hg > orthanc

annotate OrthancServer/ServerContext.cpp @ 394:9784f19f7e1b lua-scripting

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path relative to configuration path, list of lua scripts
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 02 May 2013 11:02:15 +0200
parents 2cef9c2d4148
children 941ea46e9e26
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 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
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37 #include <glog/logging.h>
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38 #include <EmbeddedResources.h>
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39
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40 #define ENABLE_DICOM_CACHE 1
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41
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42
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43 static const size_t DICOM_CACHE_SIZE = 2;
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44
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45 /**
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46 * IMPORTANT: We make the assumption that the same instance of
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47 * FileStorage can be accessed from multiple threads. This seems OK
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48 * since the filesystem implements the required locking mechanisms,
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49 * but maybe a read-writer lock on the "FileStorage" could be
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50 * useful. Conversely, "ServerIndex" already implements mutex-based
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51 * locking.
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52 **/
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53
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54 namespace Orthanc
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55 {
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56 ServerContext::ServerContext(const boost::filesystem::path& storagePath,
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57 const boost::filesystem::path& indexPath) :
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58 storage_(storagePath.string()),
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59 index_(*this, indexPath.string()),
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60 accessor_(storage_),
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61 provider_(*this),
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62 dicomCache_(provider_, DICOM_CACHE_SIZE)
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63 {
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64 lua_.Execute(Orthanc::EmbeddedResources::LUA_TOOLBOX);
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65 }
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66
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67 void ServerContext::SetCompressionEnabled(bool enabled)
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68 {
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69 if (enabled)
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70 LOG(WARNING) << "Disk compression is enabled";
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71 else
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72 LOG(WARNING) << "Disk compression is disabled";
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73
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74 compressionEnabled_ = enabled;
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75 }
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76
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77 void ServerContext::RemoveFile(const std::string& fileUuid)
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78 {
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79 storage_.Remove(fileUuid);
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80 }
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81
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82 StoreStatus ServerContext::Store(const char* dicomInstance,
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83 size_t dicomSize,
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84 const DicomMap& dicomSummary,
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85 const Json::Value& dicomJson,
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86 const std::string& remoteAet)
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87 {
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88 if (compressionEnabled_)
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89 {
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90 accessor_.SetCompressionForNextOperations(CompressionType_Zlib);
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91 }
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92 else
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93 {
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94 accessor_.SetCompressionForNextOperations(CompressionType_None);
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95 }
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96
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97 FileInfo dicomInfo = accessor_.Write(dicomInstance, dicomSize, FileContentType_Dicom);
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98 FileInfo jsonInfo = accessor_.Write(dicomJson.toStyledString(), FileContentType_Json);
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99
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100 ServerIndex::Attachments attachments;
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101 attachments.push_back(dicomInfo);
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102 attachments.push_back(jsonInfo);
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103
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104 StoreStatus status = index_.Store(dicomSummary, attachments, remoteAet);
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105
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106 if (status != StoreStatus_Success)
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107 {
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108 storage_.Remove(dicomInfo.GetUuid());
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109 storage_.Remove(jsonInfo.GetUuid());
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110 }
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111
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112 switch (status)
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113 {
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114 case StoreStatus_Success:
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115 LOG(INFO) << "New instance stored";
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116 break;
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117
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118 case StoreStatus_AlreadyStored:
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119 LOG(INFO) << "Already stored";
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120 break;
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121
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122 case StoreStatus_Failure:
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123 LOG(ERROR) << "Store failure";
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124 break;
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125 }
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126
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127 return status;
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128 }
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129
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130
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131 void ServerContext::AnswerFile(RestApiOutput& output,
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132 const std::string& instancePublicId,
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133 FileContentType content)
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134 {
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135 FileInfo attachment;
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136 if (!index_.LookupAttachment(attachment, instancePublicId, content))
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137 {
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138 throw OrthancException(ErrorCode_InternalError);
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139 }
226
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140
236
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141 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
320
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142
236
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143 std::auto_ptr<HttpFileSender> sender(accessor_.ConstructHttpFileSender(attachment.GetUuid()));
320
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144 sender->SetContentType("application/dicom");
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145 sender->SetDownloadFilename(instancePublicId + ".dcm");
236
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146 output.AnswerFile(*sender);
226
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147 }
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148
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149
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150 void ServerContext::ReadJson(Json::Value& result,
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151 const std::string& instancePublicId)
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152 {
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153 std::string s;
233
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154 ReadFile(s, instancePublicId, FileContentType_Json);
226
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155
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156 Json::Reader reader;
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157 if (!reader.parse(s, result))
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158 {
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159 throw OrthancException("Corrupted JSON file");
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160 }
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161 }
227
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162
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163
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164 void ServerContext::ReadFile(std::string& result,
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165 const std::string& instancePublicId,
233
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166 FileContentType content)
227
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167 {
232
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168 FileInfo attachment;
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169 if (!index_.LookupAttachment(attachment, instancePublicId, content))
227
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170 {
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171 throw OrthancException(ErrorCode_InternalError);
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172 }
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173
232
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174 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
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175 accessor_.Read(result, attachment.GetUuid());
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176 }
285
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177
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178
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179 IDynamicObject* ServerContext::DicomCacheProvider::Provide(const std::string& instancePublicId)
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180 {
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181 std::string content;
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182 context_.ReadFile(content, instancePublicId, FileContentType_Dicom);
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183 return new ParsedDicomFile(content);
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184 }
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185
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186
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187 ParsedDicomFile& ServerContext::GetDicomFile(const std::string& instancePublicId)
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188 {
291
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189 #if ENABLE_DICOM_CACHE == 0
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190 static std::auto_ptr<IDynamicObject> p;
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191 p.reset(provider_.Provide(instancePublicId));
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192 return dynamic_cast<ParsedDicomFile&>(*p);
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193 #else
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194 return dynamic_cast<ParsedDicomFile&>(dicomCache_.Access(instancePublicId));
291
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195 #endif
285
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196 }
304
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197
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198
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199 StoreStatus ServerContext::Store(std::string& resultPublicId,
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200 DcmFileFormat& dicomInstance,
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201 const char* dicomBuffer,
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202 size_t dicomSize)
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203 {
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204 DicomMap dicomSummary;
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205 FromDcmtkBridge::Convert(dicomSummary, *dicomInstance.getDataset());
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206
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207 DicomInstanceHasher hasher(dicomSummary);
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208 resultPublicId = hasher.HashInstance();
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209
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210 Json::Value dicomJson;
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211 FromDcmtkBridge::ToJson(dicomJson, *dicomInstance.getDataset());
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212
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213 StoreStatus status = StoreStatus_Failure;
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214 if (dicomSize > 0)
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215 {
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216 status = Store(dicomBuffer, dicomSize, dicomSummary, dicomJson, "");
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217 }
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218
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219 return status;
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220 }
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221
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222
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223 StoreStatus ServerContext::Store(std::string& resultPublicId,
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224 DcmFileFormat& dicomInstance)
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225 {
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226 std::string buffer;
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227 if (!FromDcmtkBridge::SaveToMemoryBuffer(buffer, dicomInstance.getDataset()))
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228 {
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229 throw OrthancException(ErrorCode_InternalError);
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230 }
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231
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232 if (buffer.size() == 0)
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233 return Store(resultPublicId, dicomInstance, NULL, 0);
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234 else
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235 return Store(resultPublicId, dicomInstance, &buffer[0], buffer.size());
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236 }
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237
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238
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239 StoreStatus ServerContext::Store(std::string& resultPublicId,
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240 const char* dicomBuffer,
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241 size_t dicomSize)
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242 {
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243 ParsedDicomFile dicom(dicomBuffer, dicomSize);
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244 return Store(resultPublicId, dicom.GetDicom(), dicomBuffer, dicomSize);
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245 }
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246
224
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247 }