Mercurial > hg > orthanc
annotate OrthancServer/ServerContext.cpp @ 285:4031f73fe0e4
access to the raw dicom tags
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 12 Dec 2012 17:53:14 +0100 |
parents | f6fdf5abe751 |
children | 40d3bf6cc8d9 |
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> |
38 | |
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39 |
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40 static const size_t DICOM_CACHE_SIZE = 2; |
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41 |
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42 /** |
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43 * IMPORTANT: We make the assumption that the same instance of |
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44 * FileStorage can be accessed from multiple threads. This seems OK |
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45 * since the filesystem implements the required locking mechanisms, |
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46 * but maybe a read-writer lock on the "FileStorage" could be |
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47 * useful. Conversely, "ServerIndex" already implements mutex-based |
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48 * locking. |
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49 **/ |
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50 |
224 | 51 namespace Orthanc |
52 { | |
53 ServerContext::ServerContext(const boost::filesystem::path& path) : | |
54 storage_(path.string()), | |
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55 index_(*this, path.string()), |
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56 accessor_(storage_), |
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57 provider_(*this), |
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58 dicomCache_(provider_, DICOM_CACHE_SIZE) |
224 | 59 { |
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60 // TODO RECYCLING SETUP HERE |
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61 //index_.SetMaximumPatientCount(4); |
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62 //index_.SetMaximumStorageSize(10); |
224 | 63 } |
64 | |
236 | 65 void ServerContext::SetCompressionEnabled(bool enabled) |
66 { | |
67 if (enabled) | |
68 LOG(WARNING) << "Disk compression is enabled"; | |
69 else | |
70 LOG(WARNING) << "Disk compression is disabled"; | |
71 | |
72 compressionEnabled_ = enabled; | |
73 } | |
74 | |
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75 void ServerContext::RemoveFile(const std::string& fileUuid) |
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76 { |
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77 storage_.Remove(fileUuid); |
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78 } |
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79 |
224 | 80 StoreStatus ServerContext::Store(const char* dicomFile, |
81 size_t dicomSize, | |
82 const DicomMap& dicomSummary, | |
83 const Json::Value& dicomJson, | |
84 const std::string& remoteAet) | |
85 { | |
236 | 86 if (compressionEnabled_) |
87 { | |
88 accessor_.SetCompressionForNextOperations(CompressionType_Zlib); | |
89 } | |
90 else | |
91 { | |
92 accessor_.SetCompressionForNextOperations(CompressionType_None); | |
93 } | |
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94 |
233 | 95 FileInfo dicomInfo = accessor_.Write(dicomFile, dicomSize, FileContentType_Dicom); |
96 FileInfo jsonInfo = accessor_.Write(dicomJson.toStyledString(), FileContentType_Json); | |
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97 |
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98 ServerIndex::Attachments attachments; |
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99 attachments.push_back(dicomInfo); |
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100 attachments.push_back(jsonInfo); |
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101 |
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102 StoreStatus status = index_.Store(dicomSummary, attachments, remoteAet); |
224 | 103 |
104 if (status != StoreStatus_Success) | |
105 { | |
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106 storage_.Remove(dicomInfo.GetUuid()); |
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107 storage_.Remove(jsonInfo.GetUuid()); |
224 | 108 } |
109 | |
110 switch (status) | |
111 { | |
112 case StoreStatus_Success: | |
113 LOG(INFO) << "New instance stored"; | |
114 break; | |
115 | |
116 case StoreStatus_AlreadyStored: | |
117 LOG(INFO) << "Already stored"; | |
118 break; | |
119 | |
120 case StoreStatus_Failure: | |
121 LOG(ERROR) << "Store failure"; | |
122 break; | |
123 } | |
124 | |
125 return status; | |
126 } | |
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127 |
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128 |
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129 void ServerContext::AnswerFile(RestApiOutput& output, |
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130 const std::string& instancePublicId, |
233 | 131 FileContentType content) |
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132 { |
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133 FileInfo attachment; |
236 | 134 if (!index_.LookupAttachment(attachment, instancePublicId, content)) |
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135 { |
236 | 136 throw OrthancException(ErrorCode_InternalError); |
137 } | |
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138 |
236 | 139 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType()); |
140 std::auto_ptr<HttpFileSender> sender(accessor_.ConstructHttpFileSender(attachment.GetUuid())); | |
141 output.AnswerFile(*sender); | |
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142 } |
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143 |
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144 |
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145 void ServerContext::ReadJson(Json::Value& result, |
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146 const std::string& instancePublicId) |
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147 { |
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148 std::string s; |
233 | 149 ReadFile(s, instancePublicId, FileContentType_Json); |
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150 |
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151 Json::Reader reader; |
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152 if (!reader.parse(s, result)) |
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153 { |
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154 throw OrthancException("Corrupted JSON file"); |
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155 } |
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156 } |
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157 |
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158 |
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159 void ServerContext::ReadFile(std::string& result, |
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160 const std::string& instancePublicId, |
233 | 161 FileContentType content) |
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162 { |
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163 FileInfo attachment; |
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164 if (!index_.LookupAttachment(attachment, instancePublicId, content)) |
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165 { |
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166 throw OrthancException(ErrorCode_InternalError); |
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167 } |
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168 |
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169 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType()); |
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170 accessor_.Read(result, attachment.GetUuid()); |
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171 } |
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172 |
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173 |
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174 IDynamicObject* ServerContext::DicomCacheProvider::Provide(const std::string& instancePublicId) |
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175 { |
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176 std::string content; |
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177 context_.ReadFile(content, instancePublicId, FileContentType_Dicom); |
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178 return new ParsedDicomFile(content); |
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179 } |
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180 |
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181 |
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182 ParsedDicomFile& ServerContext::GetDicomFile(const std::string& instancePublicId) |
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183 { |
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184 return dynamic_cast<ParsedDicomFile&>(dicomCache_.Access(instancePublicId)); |
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185 } |
224 | 186 } |