Mercurial > hg > orthanc
annotate OrthancServer/ServerContext.cpp @ 394:9784f19f7e1b lua-scripting
path relative to configuration path, list of lua scripts
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 02 May 2013 11:02:15 +0200 |
parents | 2cef9c2d4148 |
children | 941ea46e9e26 |
rev | line source |
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224 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege, | |
4 * Belgium | |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
32 | |
33 #include "ServerContext.h" | |
34 | |
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35 #include "../Core/HttpServer/FilesystemHttpSender.h" |
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36 |
224 | 37 #include <glog/logging.h> |
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38 #include <EmbeddedResources.h> |
224 | 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 |
224 | 54 namespace Orthanc |
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) |
224 | 63 { |
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64 lua_.Execute(Orthanc::EmbeddedResources::LUA_TOOLBOX); |
224 | 65 } |
66 | |
236 | 67 void ServerContext::SetCompressionEnabled(bool enabled) |
68 { | |
69 if (enabled) | |
70 LOG(WARNING) << "Disk compression is enabled"; | |
71 else | |
72 LOG(WARNING) << "Disk compression is disabled"; | |
73 | |
74 compressionEnabled_ = enabled; | |
75 } | |
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 |
304 | 82 StoreStatus ServerContext::Store(const char* dicomInstance, |
224 | 83 size_t dicomSize, |
84 const DicomMap& dicomSummary, | |
85 const Json::Value& dicomJson, | |
86 const std::string& remoteAet) | |
87 { | |
236 | 88 if (compressionEnabled_) |
89 { | |
90 accessor_.SetCompressionForNextOperations(CompressionType_Zlib); | |
91 } | |
92 else | |
93 { | |
94 accessor_.SetCompressionForNextOperations(CompressionType_None); | |
95 } | |
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96 |
304 | 97 FileInfo dicomInfo = accessor_.Write(dicomInstance, dicomSize, FileContentType_Dicom); |
233 | 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); |
224 | 105 |
106 if (status != StoreStatus_Success) | |
107 { | |
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108 storage_.Remove(dicomInfo.GetUuid()); |
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109 storage_.Remove(jsonInfo.GetUuid()); |
224 | 110 } |
111 | |
112 switch (status) | |
113 { | |
114 case StoreStatus_Success: | |
115 LOG(INFO) << "New instance stored"; | |
116 break; | |
117 | |
118 case StoreStatus_AlreadyStored: | |
119 LOG(INFO) << "Already stored"; | |
120 break; | |
121 | |
122 case StoreStatus_Failure: | |
123 LOG(ERROR) << "Store failure"; | |
124 break; | |
125 } | |
126 | |
127 return status; | |
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, |
233 | 133 FileContentType content) |
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134 { |
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135 FileInfo attachment; |
236 | 136 if (!index_.LookupAttachment(attachment, instancePublicId, content)) |
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137 { |
236 | 138 throw OrthancException(ErrorCode_InternalError); |
139 } | |
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140 |
236 | 141 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType()); |
320 | 142 |
236 | 143 std::auto_ptr<HttpFileSender> sender(accessor_.ConstructHttpFileSender(attachment.GetUuid())); |
320 | 144 sender->SetContentType("application/dicom"); |
145 sender->SetDownloadFilename(instancePublicId + ".dcm"); | |
236 | 146 output.AnswerFile(*sender); |
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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 | 154 ReadFile(s, instancePublicId, FileContentType_Json); |
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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 } |
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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 | 166 FileContentType content) |
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167 { |
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168 FileInfo attachment; |
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169 if (!index_.LookupAttachment(attachment, instancePublicId, content)) |
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170 { |
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171 throw OrthancException(ErrorCode_InternalError); |
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172 } |
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173 |
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174 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType()); |
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175 accessor_.Read(result, attachment.GetUuid()); |
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176 } |
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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 { |
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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)); |
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195 #endif |
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196 } |
304 | 197 |
198 | |
199 StoreStatus ServerContext::Store(std::string& resultPublicId, | |
200 DcmFileFormat& dicomInstance, | |
201 const char* dicomBuffer, | |
202 size_t dicomSize) | |
203 { | |
204 DicomMap dicomSummary; | |
205 FromDcmtkBridge::Convert(dicomSummary, *dicomInstance.getDataset()); | |
206 | |
207 DicomInstanceHasher hasher(dicomSummary); | |
208 resultPublicId = hasher.HashInstance(); | |
209 | |
210 Json::Value dicomJson; | |
211 FromDcmtkBridge::ToJson(dicomJson, *dicomInstance.getDataset()); | |
212 | |
213 StoreStatus status = StoreStatus_Failure; | |
214 if (dicomSize > 0) | |
215 { | |
216 status = Store(dicomBuffer, dicomSize, dicomSummary, dicomJson, ""); | |
217 } | |
218 | |
219 return status; | |
220 } | |
221 | |
222 | |
223 StoreStatus ServerContext::Store(std::string& resultPublicId, | |
224 DcmFileFormat& dicomInstance) | |
225 { | |
226 std::string buffer; | |
227 if (!FromDcmtkBridge::SaveToMemoryBuffer(buffer, dicomInstance.getDataset())) | |
228 { | |
229 throw OrthancException(ErrorCode_InternalError); | |
230 } | |
231 | |
232 if (buffer.size() == 0) | |
233 return Store(resultPublicId, dicomInstance, NULL, 0); | |
234 else | |
235 return Store(resultPublicId, dicomInstance, &buffer[0], buffer.size()); | |
236 } | |
237 | |
238 | |
239 StoreStatus ServerContext::Store(std::string& resultPublicId, | |
240 const char* dicomBuffer, | |
241 size_t dicomSize) | |
242 { | |
243 ParsedDicomFile dicom(dicomBuffer, dicomSize); | |
244 return Store(resultPublicId, dicom.GetDicom(), dicomBuffer, dicomSize); | |
245 } | |
246 | |
224 | 247 } |