Mercurial > hg > orthanc-transfers
annotate Framework/DownloadArea.cpp @ 20:17f775299b4a
sync
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 30 Jun 2020 07:52:24 +0200 |
| parents | b06103a50c95 |
| children | ebf978ab064d |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Transfers accelerator plugin for Orthanc | |
| 19 | 3 * Copyright (C) 2018-2020 Osimis S.A., Belgium |
| 0 | 4 * |
| 5 * This program is free software: you can redistribute it and/or | |
| 6 * modify it under the terms of the GNU Affero General Public License | |
| 7 * as published by the Free Software Foundation, either version 3 of | |
| 8 * the License, or (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, but | |
| 11 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 * Affero General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU Affero General Public License | |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 **/ | |
| 18 | |
| 19 | |
| 20 #include "DownloadArea.h" | |
| 21 | |
| 20 | 22 #include <Compression/GzipCompressor.h> |
| 23 #include <Logging.h> | |
| 24 #include <SystemToolbox.h> | |
| 25 #include <OrthancPluginCppWrapper.h> | |
| 0 | 26 |
| 27 #include <boost/filesystem.hpp> | |
| 28 #include <boost/filesystem/fstream.hpp> | |
| 29 | |
| 30 namespace OrthancPlugins | |
| 31 { | |
| 32 class DownloadArea::Instance::Writer : public boost::noncopyable | |
| 33 { | |
| 34 private: | |
| 35 boost::filesystem::ofstream stream_; | |
| 36 | |
| 37 public: | |
| 38 Writer(Orthanc::TemporaryFile& f, | |
| 39 bool create) | |
| 40 { | |
| 41 if (create) | |
| 42 { | |
| 43 // Create the file. | |
| 44 stream_.open(f.GetPath(), std::ofstream::out | std::ofstream::binary); | |
| 45 } | |
| 46 else | |
| 47 { | |
| 48 // Open the existing file to modify it. The "in" mode is | |
| 49 // necessary, otherwise previous content is lost by | |
| 50 // truncation (as an ofstream defaults to std::ios::trunc, | |
| 51 // the flag to truncate the existing content). | |
| 52 stream_.open(f.GetPath(), std::ofstream::in | std::ofstream::out | std::ofstream::binary); | |
| 53 } | |
| 54 | |
| 55 if (!stream_.good()) | |
| 56 { | |
| 57 throw Orthanc::OrthancException(Orthanc::ErrorCode_CannotWriteFile); | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 void Write(size_t offset, | |
| 62 const void* data, | |
| 63 size_t size) | |
| 64 { | |
| 65 stream_.seekp(offset); | |
| 66 stream_.write(reinterpret_cast<const char*>(data), size); | |
| 67 } | |
| 68 }; | |
| 69 | |
| 70 | |
| 71 DownloadArea::Instance::Instance(const DicomInstanceInfo& info) : | |
| 72 info_(info) | |
| 73 { | |
| 74 Writer writer(file_, true); | |
| 75 | |
| 76 // Create a sparse file of expected size | |
| 77 if (info_.GetSize() != 0) | |
| 78 { | |
| 79 writer.Write(info_.GetSize() - 1, "", 1); | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 | |
| 84 void DownloadArea::Instance::WriteChunk(size_t offset, | |
| 85 const void* data, | |
| 86 size_t size) | |
| 87 { | |
| 88 if (offset + size > info_.GetSize()) | |
| 89 { | |
| 90 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 91 } | |
| 92 else if (size > 0) | |
| 93 { | |
| 94 Writer writer(file_, false); | |
| 95 writer.Write(offset, data, size); | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 | |
|
8
4c3437217518
fix for compatibility with simplified OrthancPluginCppWrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
100 void DownloadArea::Instance::Commit(bool simulate) const |
| 0 | 101 { |
| 102 std::string content; | |
| 103 Orthanc::SystemToolbox::ReadFile(content, file_.GetPath()); | |
| 104 | |
| 105 std::string md5; | |
| 106 Orthanc::Toolbox::ComputeMD5(md5, content); | |
| 107 | |
| 108 if (md5 == info_.GetMD5()) | |
| 109 { | |
| 110 if (!simulate) | |
| 111 { | |
| 112 Json::Value result; | |
|
8
4c3437217518
fix for compatibility with simplified OrthancPluginCppWrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
113 if (!RestApiPost(result, "/instances", |
| 0 | 114 content.empty() ? NULL : content.c_str(), content.size(), |
| 115 false)) | |
| 116 { | |
| 117 LOG(ERROR) << "Cannot import a transfered DICOM instance into Orthanc: " | |
| 118 << info_.GetId(); | |
| 119 throw Orthanc::OrthancException(Orthanc::ErrorCode_CorruptedFile); | |
| 120 } | |
| 121 } | |
| 122 } | |
| 123 else | |
| 124 { | |
| 125 LOG(ERROR) << "Bad MD5 sum in a transfered DICOM instance: " << info_.GetId(); | |
| 126 throw Orthanc::OrthancException(Orthanc::ErrorCode_CorruptedFile); | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 | |
| 131 void DownloadArea::Clear() | |
| 132 { | |
| 133 for (Instances::iterator it = instances_.begin(); | |
| 134 it != instances_.end(); ++it) | |
| 135 { | |
| 136 if (it->second != NULL) | |
| 137 { | |
| 138 delete it->second; | |
| 139 it->second = NULL; | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 instances_.clear(); | |
| 144 } | |
| 145 | |
| 146 | |
| 147 DownloadArea::Instance& DownloadArea::LookupInstance(const std::string& id) | |
| 148 { | |
| 149 Instances::iterator it = instances_.find(id); | |
| 150 | |
| 151 if (it == instances_.end()) | |
| 152 { | |
| 153 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); | |
| 154 } | |
| 155 else if (it->first != id || | |
| 156 it->second == NULL) | |
| 157 { | |
| 158 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 159 } | |
| 160 else | |
| 161 { | |
| 162 return *it->second; | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 | |
| 167 void DownloadArea::WriteUncompressedBucket(const TransferBucket& bucket, | |
| 168 const void* data, | |
| 169 size_t size) | |
| 170 { | |
| 171 if (size != bucket.GetTotalSize()) | |
| 172 { | |
| 173 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol); | |
| 174 } | |
| 175 | |
| 176 if (size == 0) | |
| 177 { | |
| 178 return; | |
| 179 } | |
| 180 | |
| 181 size_t pos = 0; | |
| 182 | |
| 183 for (size_t i = 0; i < bucket.GetChunksCount(); i++) | |
| 184 { | |
| 185 size_t chunkSize = bucket.GetChunkSize(i); | |
| 186 size_t offset = bucket.GetChunkOffset(i); | |
| 187 | |
| 188 if (pos + chunkSize > size) | |
| 189 { | |
| 190 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 191 } | |
| 192 | |
| 193 Instance& instance = LookupInstance(bucket.GetChunkInstanceId(i)); | |
| 194 instance.WriteChunk(offset, reinterpret_cast<const char*>(data) + pos, chunkSize); | |
| 195 | |
| 196 pos += chunkSize; | |
| 197 } | |
| 198 | |
| 199 if (pos != size) | |
| 200 { | |
| 201 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 202 } | |
| 203 } | |
| 204 | |
| 205 | |
| 206 void DownloadArea::Setup(const std::vector<DicomInstanceInfo>& instances) | |
| 207 { | |
| 208 totalSize_ = 0; | |
| 209 | |
| 210 for (size_t i = 0; i < instances.size(); i++) | |
| 211 { | |
| 212 const std::string& id = instances[i].GetId(); | |
| 213 | |
| 214 assert(instances_.find(id) == instances_.end()); | |
| 215 instances_[id] = new Instance(instances[i]); | |
| 216 | |
| 217 totalSize_ += instances[i].GetSize(); | |
| 218 } | |
| 219 } | |
| 220 | |
| 221 | |
|
8
4c3437217518
fix for compatibility with simplified OrthancPluginCppWrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
222 void DownloadArea::CommitInternal(bool simulate) |
| 0 | 223 { |
| 224 boost::mutex::scoped_lock lock(mutex_); | |
| 225 | |
| 226 for (Instances::iterator it = instances_.begin(); | |
| 227 it != instances_.end(); ++it) | |
| 228 { | |
| 229 if (it->second != NULL) | |
| 230 { | |
|
8
4c3437217518
fix for compatibility with simplified OrthancPluginCppWrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
231 it->second->Commit(simulate); |
| 0 | 232 delete it->second; |
| 233 it->second = NULL; | |
| 234 } | |
| 235 else | |
| 236 { | |
| 237 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 238 } | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 | |
| 243 DownloadArea::DownloadArea(const TransferScheduler& scheduler) | |
| 244 { | |
| 245 std::vector<DicomInstanceInfo> instances; | |
| 246 scheduler.ListInstances(instances); | |
| 247 Setup(instances); | |
| 248 } | |
| 249 | |
| 250 | |
| 251 void DownloadArea::WriteBucket(const TransferBucket& bucket, | |
| 252 const void* data, | |
| 253 size_t size, | |
| 254 BucketCompression compression) | |
| 255 { | |
| 256 boost::mutex::scoped_lock lock(mutex_); | |
| 257 | |
| 258 switch (compression) | |
| 259 { | |
| 260 case BucketCompression_None: | |
| 261 WriteUncompressedBucket(bucket, data, size); | |
| 262 break; | |
| 263 | |
| 264 case BucketCompression_Gzip: | |
| 265 { | |
| 266 std::string uncompressed; | |
| 267 Orthanc::GzipCompressor compressor; | |
| 268 compressor.Uncompress(uncompressed, data, size); | |
| 269 WriteUncompressedBucket(bucket, uncompressed.c_str(), uncompressed.size()); | |
| 270 break; | |
| 271 } | |
| 272 | |
| 273 default: | |
| 274 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 275 } | |
| 276 } | |
| 277 | |
| 278 | |
| 279 void DownloadArea::WriteInstance(const std::string& instanceId, | |
| 280 const void* data, | |
| 281 size_t size) | |
| 282 { | |
| 283 std::string md5; | |
| 284 Orthanc::Toolbox::ComputeMD5(md5, data, size); | |
| 285 | |
| 286 { | |
| 287 boost::mutex::scoped_lock lock(mutex_); | |
| 288 | |
| 289 Instances::const_iterator it = instances_.find(instanceId); | |
| 290 if (it == instances_.end() || | |
| 291 it->second == NULL || | |
| 292 it->second->GetInfo().GetId() != instanceId || | |
| 293 it->second->GetInfo().GetSize() != size || | |
| 294 it->second->GetInfo().GetMD5() != md5) | |
| 295 { | |
| 296 throw Orthanc::OrthancException(Orthanc::ErrorCode_CorruptedFile); | |
| 297 } | |
| 298 else | |
| 299 { | |
| 300 it->second->WriteChunk(0, data, size); | |
| 301 } | |
| 302 } | |
| 303 } | |
| 304 | |
| 305 | |
| 306 void DownloadArea::CheckMD5() | |
| 307 { | |
| 308 LOG(INFO) << "Checking MD5 sum without committing (testing)"; | |
|
8
4c3437217518
fix for compatibility with simplified OrthancPluginCppWrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
309 CommitInternal(true); |
| 0 | 310 } |
| 311 | |
| 312 | |
|
8
4c3437217518
fix for compatibility with simplified OrthancPluginCppWrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
313 void DownloadArea::Commit() |
| 0 | 314 { |
| 315 LOG(INFO) << "Importing transfered DICOM files from the temporary download area into Orthanc"; | |
|
8
4c3437217518
fix for compatibility with simplified OrthancPluginCppWrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
316 CommitInternal(false); |
| 0 | 317 } |
| 318 } |