Mercurial > hg > orthanc
annotate OrthancFramework/Sources/FileStorage/FilesystemStorage.cpp @ 4498:7b99e8bb8246
IStorageArea::HasReadRange()
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 09 Feb 2021 11:37:13 +0100 |
parents | fa2311f94d9f |
children | cff7fdfc83a4 |
rev | line source |
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0 | 1 /** |
59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
136 | 11 * |
0 | 12 * This program is distributed in the hope that it will be useful, but |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
0 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
0 | 20 **/ |
21 | |
22 | |
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23 #include "../PrecompiledHeaders.h" |
1123 | 24 #include "FilesystemStorage.h" |
0 | 25 |
26 // http://stackoverflow.com/questions/1576272/storing-large-number-of-files-in-file-system | |
27 // http://stackoverflow.com/questions/446358/storing-a-large-number-of-images | |
28 | |
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29 #include "../Logging.h" |
234 | 30 #include "../OrthancException.h" |
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31 #include "../StringMemoryBuffer.h" |
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32 #include "../SystemToolbox.h" |
234 | 33 #include "../Toolbox.h" |
0 | 34 |
35 #include <boost/filesystem/fstream.hpp> | |
1397 | 36 |
0 | 37 |
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38 static std::string ToString(const boost::filesystem::path& p) |
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39 { |
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40 #if BOOST_HAS_FILESYSTEM_V3 == 1 |
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41 return p.filename().string(); |
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42 #else |
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43 return p.filename(); |
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44 #endif |
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45 } |
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46 |
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47 |
59 | 48 namespace Orthanc |
0 | 49 { |
1123 | 50 boost::filesystem::path FilesystemStorage::GetPath(const std::string& uuid) const |
0 | 51 { |
52 namespace fs = boost::filesystem; | |
53 | |
54 if (!Toolbox::IsUuid(uuid)) | |
55 { | |
59 | 56 throw OrthancException(ErrorCode_ParameterOutOfRange); |
0 | 57 } |
58 | |
59 fs::path path = root_; | |
60 | |
61 path /= std::string(&uuid[0], &uuid[2]); | |
62 path /= std::string(&uuid[2], &uuid[4]); | |
63 path /= uuid; | |
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64 |
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65 #if BOOST_HAS_FILESYSTEM_V3 == 1 |
0 | 66 path.make_preferred(); |
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67 #endif |
0 | 68 |
69 return path; | |
70 } | |
71 | |
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72 void FilesystemStorage::Setup(const std::string& root) |
0 | 73 { |
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74 //root_ = boost::filesystem::absolute(root).string(); |
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75 root_ = root; |
0 | 76 |
2140 | 77 SystemToolbox::MakeDirectory(root); |
0 | 78 } |
79 | |
4300 | 80 FilesystemStorage::FilesystemStorage(const std::string &root) : |
81 fsyncOnWrite_(false) | |
82 { | |
83 Setup(root); | |
84 } | |
85 | |
86 FilesystemStorage::FilesystemStorage(const std::string &root, | |
87 bool fsyncOnWrite) : | |
88 fsyncOnWrite_(fsyncOnWrite) | |
89 { | |
90 Setup(root); | |
91 } | |
92 | |
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93 |
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94 |
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95 static const char* GetDescriptionInternal(FileContentType content) |
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96 { |
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97 // This function is for logging only (internal use), a more |
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98 // fully-featured version is available in ServerEnumerations.cpp |
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99 switch (content) |
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100 { |
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101 case FileContentType_Unknown: |
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102 return "Unknown"; |
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103 |
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104 case FileContentType_Dicom: |
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105 return "DICOM"; |
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106 |
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107 case FileContentType_DicomAsJson: |
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108 return "JSON summary of DICOM"; |
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109 |
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110 default: |
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111 return "User-defined"; |
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112 } |
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113 } |
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114 |
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115 |
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116 void FilesystemStorage::Create(const std::string& uuid, |
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117 const void* content, |
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118 size_t size, |
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119 FileContentType type) |
0 | 120 { |
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121 LOG(INFO) << "Creating attachment \"" << uuid << "\" of \"" << GetDescriptionInternal(type) |
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122 << "\" type (size: " << (size / (1024 * 1024) + 1) << "MB)"; |
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123 |
0 | 124 boost::filesystem::path path; |
125 | |
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126 path = GetPath(uuid); |
0 | 127 |
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128 if (boost::filesystem::exists(path)) |
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129 { |
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130 // Extremely unlikely case: This Uuid has already been created |
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131 // in the past. |
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132 throw OrthancException(ErrorCode_InternalError); |
0 | 133 } |
134 | |
135 if (boost::filesystem::exists(path.parent_path())) | |
136 { | |
137 if (!boost::filesystem::is_directory(path.parent_path())) | |
138 { | |
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139 throw OrthancException(ErrorCode_DirectoryOverFile); |
0 | 140 } |
141 } | |
142 else | |
143 { | |
144 if (!boost::filesystem::create_directories(path.parent_path())) | |
145 { | |
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146 throw OrthancException(ErrorCode_FileStorageCannotWrite); |
0 | 147 } |
148 } | |
149 | |
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150 SystemToolbox::WriteFile(content, size, path.string(), fsyncOnWrite_); |
0 | 151 } |
152 | |
153 | |
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154 IMemoryBuffer* FilesystemStorage::Read(const std::string& uuid, |
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155 FileContentType type) |
0 | 156 { |
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157 LOG(INFO) << "Reading attachment \"" << uuid << "\" of \"" << GetDescriptionInternal(type) |
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158 << "\" content type"; |
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159 |
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160 std::string content; |
2140 | 161 SystemToolbox::ReadFile(content, GetPath(uuid).string()); |
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162 |
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163 return StringMemoryBuffer::CreateFromSwap(content); |
0 | 164 } |
165 | |
166 | |
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167 IMemoryBuffer* FilesystemStorage::ReadRange(const std::string& uuid, |
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168 FileContentType type, |
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169 uint64_t start /* inclusive */, |
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170 uint64_t end /* exclusive */) |
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171 { |
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172 LOG(INFO) << "Reading attachment \"" << uuid << "\" of \"" << GetDescriptionInternal(type) |
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173 << "\" content type (range from " << start << " to " << end << ")"; |
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174 |
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175 std::string content; |
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176 SystemToolbox::ReadFileRange( |
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177 content, GetPath(uuid).string(), start, end, true /* throw if overflow */); |
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178 |
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179 return StringMemoryBuffer::CreateFromSwap(content); |
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180 } |
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181 |
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182 |
1123 | 183 uintmax_t FilesystemStorage::GetSize(const std::string& uuid) const |
0 | 184 { |
185 boost::filesystem::path path = GetPath(uuid); | |
186 return boost::filesystem::file_size(path); | |
187 } | |
188 | |
189 | |
190 | |
1123 | 191 void FilesystemStorage::ListAllFiles(std::set<std::string>& result) const |
0 | 192 { |
193 namespace fs = boost::filesystem; | |
194 | |
195 result.clear(); | |
196 | |
197 if (fs::exists(root_) && fs::is_directory(root_)) | |
198 { | |
199 for (fs::recursive_directory_iterator current(root_), end; current != end ; ++current) | |
200 { | |
2140 | 201 if (SystemToolbox::IsRegularFile(current->path().string())) |
0 | 202 { |
203 try | |
204 { | |
205 fs::path d = current->path(); | |
110
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206 std::string uuid = ToString(d); |
0 | 207 if (Toolbox::IsUuid(uuid)) |
208 { | |
209 fs::path p0 = d.parent_path().parent_path().parent_path(); | |
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210 std::string p1 = ToString(d.parent_path().parent_path()); |
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211 std::string p2 = ToString(d.parent_path()); |
0 | 212 if (p1.length() == 2 && |
213 p2.length() == 2 && | |
214 p1 == uuid.substr(0, 2) && | |
215 p2 == uuid.substr(2, 2) && | |
216 p0 == root_) | |
217 { | |
218 result.insert(uuid); | |
219 } | |
220 } | |
221 } | |
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222 catch (fs::filesystem_error&) |
0 | 223 { |
224 } | |
225 } | |
226 } | |
227 } | |
228 } | |
229 | |
230 | |
1123 | 231 void FilesystemStorage::Clear() |
0 | 232 { |
233 namespace fs = boost::filesystem; | |
234 typedef std::set<std::string> List; | |
235 | |
236 List result; | |
237 ListAllFiles(result); | |
238 | |
656 | 239 for (List::const_iterator it = result.begin(); it != result.end(); ++it) |
0 | 240 { |
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241 Remove(*it, FileContentType_Unknown /*ignored in this class*/); |
0 | 242 } |
243 } | |
244 | |
245 | |
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246 void FilesystemStorage::Remove(const std::string& uuid, |
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247 FileContentType type) |
0 | 248 { |
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249 LOG(INFO) << "Deleting attachment \"" << uuid << "\" of type " << static_cast<int>(type); |
1397 | 250 |
0 | 251 namespace fs = boost::filesystem; |
252 | |
253 fs::path p = GetPath(uuid); | |
147 | 254 |
255 try | |
256 { | |
257 fs::remove(p); | |
258 } | |
148 | 259 catch (...) |
147 | 260 { |
261 // Ignore the error | |
262 } | |
0 | 263 |
264 // Remove the two parent directories, ignoring the error code if | |
265 // these directories are not empty | |
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266 |
142 | 267 try |
268 { | |
147 | 269 #if BOOST_HAS_FILESYSTEM_V3 == 1 |
270 boost::system::error_code err; | |
271 fs::remove(p.parent_path(), err); | |
272 fs::remove(p.parent_path().parent_path(), err); | |
273 #else | |
274 fs::remove(p.parent_path()); | |
275 fs::remove(p.parent_path().parent_path()); | |
276 #endif | |
142 | 277 } |
148 | 278 catch (...) |
142 | 279 { |
280 // Ignore the error | |
281 } | |
282 } | |
283 | |
284 | |
1123 | 285 uintmax_t FilesystemStorage::GetCapacity() const |
0 | 286 { |
287 return boost::filesystem::space(root_).capacity; | |
288 } | |
289 | |
1123 | 290 uintmax_t FilesystemStorage::GetAvailableSpace() const |
0 | 291 { |
292 return boost::filesystem::space(root_).available; | |
293 } | |
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294 |
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295 |
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296 #if ORTHANC_BUILDING_FRAMEWORK_LIBRARY == 1 |
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297 FilesystemStorage::FilesystemStorage(std::string root) : |
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298 fsyncOnWrite_(false) |
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299 { |
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300 Setup(root); |
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301 } |
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302 #endif |
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303 |
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304 |
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305 #if ORTHANC_BUILDING_FRAMEWORK_LIBRARY == 1 |
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306 void FilesystemStorage::Read(std::string& content, |
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307 const std::string& uuid, |
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308 FileContentType type) |
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309 { |
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310 std::unique_ptr<IMemoryBuffer> buffer(Read(uuid, type)); |
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311 buffer->MoveToString(content); |
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312 } |
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313 #endif |
0 | 314 } |