Mercurial > hg > orthanc-webviewer
annotate Plugin/Plugin.cpp @ 95:dbe7c97b6b4a refactoring
replace built-in decoder
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 27 Nov 2015 16:19:09 +0100 |
| parents | c44ab3266343 |
| children | a6ba21a083e5 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU Affero General Public License | |
| 8 * as published by the Free Software Foundation, either version 3 of | |
| 9 * the License, or (at your option) any later version. | |
| 10 * | |
| 11 * This program is distributed in the hope that it will be useful, but | |
| 12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 * Affero General Public License for more details. | |
| 15 * | |
| 16 * You should have received a copy of the GNU Affero General Public License | |
| 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 18 **/ | |
| 19 | |
| 20 | |
| 21 #include <boost/thread.hpp> | |
| 22 #include <boost/lexical_cast.hpp> | |
| 23 #include <EmbeddedResources.h> | |
|
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24 #include <boost/filesystem.hpp> |
| 0 | 25 |
| 26 | 26 #include "../Orthanc/Core/OrthancException.h" |
| 0 | 27 #include "ViewerToolbox.h" |
| 28 #include "ViewerPrefetchPolicy.h" | |
| 29 #include "DecodedImageAdapter.h" | |
| 30 #include "InstanceInformationAdapter.h" | |
| 31 #include "SeriesInformationAdapter.h" | |
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32 #include "../Orthanc/Plugins/Samples/GdcmDecoder/GdcmImageDecoder.h" |
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33 |
| 0 | 34 |
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35 static OrthancPluginContext* context_ = NULL; |
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36 |
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37 |
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38 |
| 0 | 39 class CacheContext |
| 40 { | |
| 41 private: | |
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42 class DynamicString : public Orthanc::IDynamicObject |
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43 { |
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44 private: |
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45 std::string value_; |
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46 |
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47 public: |
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48 DynamicString(const char* value) : value_(value) |
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49 { |
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50 } |
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51 |
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52 const std::string& GetValue() const |
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53 { |
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54 return value_; |
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55 } |
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56 }; |
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57 |
| 58 | 58 Orthanc::FilesystemStorage storage_; |
| 59 Orthanc::SQLite::Connection db_; | |
| 60 | |
| 0 | 61 std::auto_ptr<OrthancPlugins::CacheManager> cache_; |
| 62 std::auto_ptr<OrthancPlugins::CacheScheduler> scheduler_; | |
| 63 | |
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64 Orthanc::SharedMessageQueue newInstances_; |
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65 bool stop_; |
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66 boost::thread newInstancesThread_; |
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67 |
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68 |
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69 static void NewInstancesThread(CacheContext* cache) |
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70 { |
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71 while (!cache->stop_) |
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72 { |
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73 std::auto_ptr<Orthanc::IDynamicObject> obj(cache->newInstances_.Dequeue(100)); |
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74 if (obj.get() != NULL) |
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75 { |
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76 const std::string& instanceId = dynamic_cast<DynamicString&>(*obj).GetValue(); |
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77 |
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78 // On the reception of a new instance, precompute its spatial position |
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79 cache->GetScheduler().Prefetch(OrthancPlugins::CacheBundle_InstanceInformation, instanceId); |
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80 |
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81 // Indalidate the parent series of the instance |
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82 std::string uri = "/instances/" + std::string(instanceId); |
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83 Json::Value instance; |
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84 if (OrthancPlugins::GetJsonFromOrthanc(instance, context_, uri)) |
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85 { |
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86 std::string seriesId = instance["ParentSeries"].asString(); |
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87 cache->GetScheduler().Invalidate(OrthancPlugins::CacheBundle_SeriesInformation, seriesId); |
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88 } |
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89 } |
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90 } |
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91 } |
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92 |
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93 |
| 0 | 94 public: |
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95 CacheContext(const std::string& path) : storage_(path), stop_(false) |
| 0 | 96 { |
| 97 boost::filesystem::path p(path); | |
| 58 | 98 db_.Open((p / "cache.db").string()); |
| 0 | 99 |
| 58 | 100 cache_.reset(new OrthancPlugins::CacheManager(db_, storage_)); |
| 0 | 101 //cache_->SetSanityCheckEnabled(true); // For debug |
| 102 | |
| 103 scheduler_.reset(new OrthancPlugins::CacheScheduler(*cache_, 100)); | |
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104 |
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105 newInstancesThread_ = boost::thread(NewInstancesThread, this); |
| 0 | 106 } |
| 107 | |
| 58 | 108 ~CacheContext() |
| 109 { | |
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110 stop_ = true; |
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111 if (newInstancesThread_.joinable()) |
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112 { |
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113 newInstancesThread_.join(); |
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114 } |
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115 |
| 58 | 116 scheduler_.reset(NULL); |
| 117 cache_.reset(NULL); | |
| 118 } | |
| 119 | |
| 0 | 120 OrthancPlugins::CacheScheduler& GetScheduler() |
| 121 { | |
| 122 return *scheduler_; | |
| 123 } | |
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124 |
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125 void SignalNewInstance(const char* instanceId) |
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126 { |
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127 newInstances_.Enqueue(new DynamicString(instanceId)); |
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128 } |
| 0 | 129 }; |
| 130 | |
| 131 | |
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132 |
| 0 | 133 static CacheContext* cache_ = NULL; |
| 134 | |
| 135 | |
| 136 | |
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137 static OrthancPluginErrorCode OnChangeCallback(OrthancPluginChangeType changeType, |
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138 OrthancPluginResourceType resourceType, |
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139 const char* resourceId) |
| 0 | 140 { |
| 141 try | |
| 142 { | |
| 143 if (changeType == OrthancPluginChangeType_NewInstance && | |
| 144 resourceType == OrthancPluginResourceType_Instance) | |
| 145 { | |
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146 cache_->SignalNewInstance(resourceId); |
| 0 | 147 } |
| 148 | |
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149 return OrthancPluginErrorCode_Success; |
| 0 | 150 } |
| 151 catch (std::runtime_error& e) | |
| 152 { | |
| 153 OrthancPluginLogError(context_, e.what()); | |
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154 return OrthancPluginErrorCode_Success; // Ignore error |
| 0 | 155 } |
| 156 } | |
| 157 | |
| 158 | |
| 159 | |
| 160 template <enum OrthancPlugins::CacheBundle bundle> | |
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161 static OrthancPluginErrorCode ServeCache(OrthancPluginRestOutput* output, |
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162 const char* url, |
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163 const OrthancPluginHttpRequest* request) |
| 0 | 164 { |
| 165 try | |
| 166 { | |
| 167 if (request->method != OrthancPluginHttpMethod_Get) | |
| 168 { | |
| 169 OrthancPluginSendMethodNotAllowed(context_, output, "GET"); | |
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170 return OrthancPluginErrorCode_Success; |
| 0 | 171 } |
| 172 | |
| 173 const std::string id = request->groups[0]; | |
| 174 std::string content; | |
| 175 | |
| 176 if (cache_->GetScheduler().Access(content, bundle, id)) | |
| 177 { | |
| 178 OrthancPluginAnswerBuffer(context_, output, content.c_str(), content.size(), "application/json"); | |
| 179 } | |
| 180 else | |
| 181 { | |
| 182 OrthancPluginSendHttpStatusCode(context_, output, 404); | |
| 183 } | |
| 184 | |
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185 return OrthancPluginErrorCode_Success; |
| 0 | 186 } |
| 187 catch (Orthanc::OrthancException& e) | |
| 188 { | |
| 189 OrthancPluginLogError(context_, e.What()); | |
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190 return OrthancPluginErrorCode_Plugin; |
| 0 | 191 } |
| 192 catch (std::runtime_error& e) | |
| 193 { | |
| 194 OrthancPluginLogError(context_, e.what()); | |
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195 return OrthancPluginErrorCode_Plugin; |
| 0 | 196 } |
| 197 catch (boost::bad_lexical_cast&) | |
| 198 { | |
| 199 OrthancPluginLogError(context_, "Bad lexical cast"); | |
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200 return OrthancPluginErrorCode_Plugin; |
| 0 | 201 } |
| 202 } | |
| 203 | |
| 204 | |
| 205 | |
| 206 | |
| 207 #if ORTHANC_STANDALONE == 0 | |
| 208 static int32_t ServeWebViewer(OrthancPluginRestOutput* output, | |
| 209 const char* url, | |
| 210 const OrthancPluginHttpRequest* request) | |
| 211 { | |
| 212 if (request->method != OrthancPluginHttpMethod_Get) | |
| 213 { | |
| 214 OrthancPluginSendMethodNotAllowed(context_, output, "GET"); | |
| 215 return 0; | |
| 216 } | |
| 217 | |
| 218 const std::string path = std::string(WEB_VIEWER_PATH) + std::string(request->groups[0]); | |
| 219 const char* mime = OrthancPlugins::GetMimeType(path); | |
| 220 | |
| 221 std::string s; | |
| 222 if (OrthancPlugins::ReadFile(s, path)) | |
| 223 { | |
| 224 const char* resource = s.size() ? s.c_str() : NULL; | |
| 225 OrthancPluginAnswerBuffer(context_, output, resource, s.size(), mime); | |
| 226 } | |
| 227 else | |
| 228 { | |
| 229 std::string s = "Inexistent file in served folder: " + path; | |
| 230 OrthancPluginLogError(context_, s.c_str()); | |
| 231 OrthancPluginSendHttpStatusCode(context_, output, 404); | |
| 232 } | |
| 233 | |
| 234 return 0; | |
| 235 } | |
| 236 #endif | |
| 237 | |
| 238 | |
| 239 | |
| 31 | 240 template <enum Orthanc::EmbeddedResources::DirectoryResourceId folder> |
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241 static OrthancPluginErrorCode ServeEmbeddedFolder(OrthancPluginRestOutput* output, |
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242 const char* url, |
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243 const OrthancPluginHttpRequest* request) |
| 0 | 244 { |
| 245 if (request->method != OrthancPluginHttpMethod_Get) | |
| 246 { | |
| 247 OrthancPluginSendMethodNotAllowed(context_, output, "GET"); | |
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248 return OrthancPluginErrorCode_Success; |
| 0 | 249 } |
| 250 | |
| 251 std::string path = "/" + std::string(request->groups[0]); | |
| 252 const char* mime = OrthancPlugins::GetMimeType(path); | |
| 253 | |
| 254 try | |
| 255 { | |
| 256 std::string s; | |
| 31 | 257 Orthanc::EmbeddedResources::GetDirectoryResource(s, folder, path.c_str()); |
| 0 | 258 |
| 259 const char* resource = s.size() ? s.c_str() : NULL; | |
| 260 OrthancPluginAnswerBuffer(context_, output, resource, s.size(), mime); | |
| 261 | |
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262 return OrthancPluginErrorCode_Success; |
| 0 | 263 } |
| 264 catch (std::runtime_error&) | |
| 265 { | |
| 266 std::string s = "Unknown static resource in plugin: " + std::string(request->groups[0]); | |
| 267 OrthancPluginLogError(context_, s.c_str()); | |
| 268 OrthancPluginSendHttpStatusCode(context_, output, 404); | |
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269 return OrthancPluginErrorCode_Success; |
| 0 | 270 } |
| 271 } | |
| 272 | |
| 273 | |
| 274 | |
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275 static OrthancPluginErrorCode IsStableSeries(OrthancPluginRestOutput* output, |
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276 const char* url, |
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277 const OrthancPluginHttpRequest* request) |
| 19 | 278 { |
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279 try |
| 19 | 280 { |
| 281 if (request->method != OrthancPluginHttpMethod_Get) | |
| 282 { | |
| 283 OrthancPluginSendMethodNotAllowed(context_, output, "GET"); | |
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284 return OrthancPluginErrorCode_Success; |
| 19 | 285 } |
| 286 | |
| 287 const std::string id = request->groups[0]; | |
| 288 Json::Value series; | |
| 289 | |
| 290 if (OrthancPlugins::GetJsonFromOrthanc(series, context_, "/series/" + id) && | |
| 291 series.type() == Json::objectValue) | |
| 292 { | |
| 293 bool value = (series["IsStable"].asBool() || | |
| 294 series["Status"].asString() == "Complete"); | |
| 295 std::string answer = value ? "true" : "false"; | |
| 296 OrthancPluginAnswerBuffer(context_, output, answer.c_str(), answer.size(), "application/json"); | |
| 297 } | |
| 298 else | |
| 299 { | |
| 300 OrthancPluginSendHttpStatusCode(context_, output, 404); | |
| 301 } | |
| 302 | |
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303 return OrthancPluginErrorCode_Success; |
| 19 | 304 } |
| 305 catch (Orthanc::OrthancException& e) | |
| 306 { | |
| 307 OrthancPluginLogError(context_, e.What()); | |
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308 return OrthancPluginErrorCode_Plugin; |
| 19 | 309 } |
| 310 catch (std::runtime_error& e) | |
| 311 { | |
| 312 OrthancPluginLogError(context_, e.what()); | |
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313 return OrthancPluginErrorCode_Plugin; |
| 19 | 314 } |
| 315 catch (boost::bad_lexical_cast&) | |
| 316 { | |
| 317 OrthancPluginLogError(context_, "Bad lexical cast"); | |
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318 return OrthancPluginErrorCode_Plugin; |
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319 } |
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320 } |
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321 |
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322 |
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323 static OrthancPluginErrorCode DecodeImageCallback(OrthancPluginImage** target, |
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324 const void* dicom, |
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325 const uint32_t size, |
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326 uint32_t frameIndex) |
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327 { |
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328 try |
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329 { |
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330 #if 1 |
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331 // Do not use the cache |
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332 OrthancPlugins::GdcmImageDecoder decoder(dicom, size); |
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333 *target = decoder.Decode(context_, frameIndex); |
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334 #else |
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335 *target = cache_.Decode(context_, dicom, size, frameIndex); |
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336 #endif |
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337 |
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338 return OrthancPluginErrorCode_Success; |
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339 } |
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340 catch (std::runtime_error& e) |
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341 { |
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342 *target = NULL; |
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343 |
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344 std::string s = "Cannot decode image using GDCM: " + std::string(e.what()); |
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345 OrthancPluginLogError(context_, s.c_str()); |
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346 return OrthancPluginErrorCode_Plugin; |
| 19 | 347 } |
| 348 } | |
| 349 | |
| 0 | 350 |
| 351 extern "C" | |
| 352 { | |
| 353 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context) | |
| 354 { | |
| 355 using namespace OrthancPlugins; | |
| 356 | |
| 357 context_ = context; | |
| 358 OrthancPluginLogWarning(context_, "Initializing the Web viewer"); | |
| 359 | |
| 360 | |
| 361 /* Check the version of the Orthanc core */ | |
| 362 if (OrthancPluginCheckVersion(context_) == 0) | |
| 363 { | |
| 364 char info[1024]; | |
| 365 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin", | |
| 366 context_->orthancVersion, | |
| 367 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, | |
| 368 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, | |
| 369 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); | |
| 370 OrthancPluginLogError(context_, info); | |
| 371 return -1; | |
| 372 } | |
| 373 | |
| 374 OrthancPluginSetDescription(context_, "Provides a Web viewer of DICOM series within Orthanc."); | |
| 375 | |
| 376 | |
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377 // Replace the default decoder of DICOM images that is built in Orthanc |
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378 OrthancPluginRegisterDecodeImageCallback(context_, DecodeImageCallback); |
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379 |
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380 |
| 0 | 381 /* By default, use half of the available processing cores for the decoding of DICOM images */ |
| 382 int decodingThreads = boost::thread::hardware_concurrency() / 2; | |
| 383 if (decodingThreads == 0) | |
| 384 { | |
| 385 decodingThreads = 1; | |
| 386 } | |
| 387 | |
| 388 | |
| 389 try | |
| 390 { | |
| 391 /* Read the configuration of the Web viewer */ | |
| 392 Json::Value configuration; | |
| 393 if (!ReadConfiguration(configuration, context)) | |
| 394 { | |
| 395 OrthancPluginLogError(context_, "Unable to read the configuration file of Orthanc"); | |
| 396 return -1; | |
| 397 } | |
| 398 | |
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399 // By default, the cache of the Web viewer is located inside the |
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400 // "StorageDirectory" of Orthanc |
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401 boost::filesystem::path cachePath = GetStringValue(configuration, "StorageDirectory", "."); |
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402 cachePath /= "WebViewerCache"; |
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403 int cacheSize = 100; // By default, a cache of 100 MB is used |
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404 |
| 0 | 405 if (configuration.isMember("WebViewer")) |
| 406 { | |
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407 std::string key = "CachePath"; |
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408 if (!configuration["WebViewer"].isMember(key)) |
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409 { |
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410 // For backward compatibility with the initial release of the Web viewer |
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411 key = "Cache"; |
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412 } |
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413 |
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414 cachePath = GetStringValue(configuration["WebViewer"], key, cachePath.string()); |
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415 cacheSize = GetIntegerValue(configuration["WebViewer"], "CacheSize", cacheSize); |
| 0 | 416 decodingThreads = GetIntegerValue(configuration["WebViewer"], "Threads", decodingThreads); |
| 417 } | |
| 418 | |
| 419 std::string message = ("Web viewer using " + boost::lexical_cast<std::string>(decodingThreads) + | |
| 420 " threads for the decoding of the DICOM images"); | |
| 421 OrthancPluginLogWarning(context_, message.c_str()); | |
| 422 | |
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423 if (decodingThreads <= 0 || |
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424 cacheSize <= 0) |
| 0 | 425 { |
| 426 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 427 } | |
| 428 | |
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429 message = "Storing the cache of the Web viewer in folder: " + cachePath.string(); |
| 0 | 430 OrthancPluginLogWarning(context_, message.c_str()); |
| 431 | |
| 432 | |
| 433 /* Create the cache */ | |
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434 cache_ = new CacheContext(cachePath.string()); |
| 0 | 435 cache_->GetScheduler().RegisterPolicy(new ViewerPrefetchPolicy(context_)); |
| 436 cache_->GetScheduler().Register(CacheBundle_SeriesInformation, | |
| 437 new SeriesInformationAdapter(context_, cache_->GetScheduler()), 1); | |
| 438 cache_->GetScheduler().Register(CacheBundle_InstanceInformation, | |
| 439 new InstanceInformationAdapter(context_), 1); | |
| 440 cache_->GetScheduler().Register(CacheBundle_DecodedImage, | |
| 441 new DecodedImageAdapter(context_), decodingThreads); | |
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442 |
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443 |
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444 /* Set the quotas */ |
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445 cache_->GetScheduler().SetQuota(CacheBundle_SeriesInformation, 1000, 0); // Keep info about 1000 series |
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446 cache_->GetScheduler().SetQuota(CacheBundle_InstanceInformation, 10000, 0); // Keep info about 10,000 instances |
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447 |
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448 message = "Web viewer using a cache of " + boost::lexical_cast<std::string>(cacheSize) + " MB"; |
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449 OrthancPluginLogWarning(context_, message.c_str()); |
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450 |
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451 cache_->GetScheduler().SetQuota(CacheBundle_DecodedImage, 0, static_cast<uint64_t>(cacheSize) * 1024 * 1024); |
| 0 | 452 } |
| 453 catch (std::runtime_error& e) | |
| 454 { | |
| 455 OrthancPluginLogError(context_, e.what()); | |
| 456 return -1; | |
| 457 } | |
| 458 catch (Orthanc::OrthancException& e) | |
| 459 { | |
| 460 OrthancPluginLogError(context_, e.What()); | |
| 461 return -1; | |
| 462 } | |
| 463 | |
| 464 | |
| 465 /* Install the callbacks */ | |
| 466 OrthancPluginRegisterRestCallback(context_, "/web-viewer/series/(.*)", ServeCache<CacheBundle_SeriesInformation>); | |
| 19 | 467 OrthancPluginRegisterRestCallback(context_, "/web-viewer/is-stable-series/(.*)", IsStableSeries); |
| 0 | 468 OrthancPluginRegisterRestCallback(context_, "/web-viewer/instances/(.*)", ServeCache<CacheBundle_DecodedImage>); |
| 31 | 469 OrthancPluginRegisterRestCallback(context, "/web-viewer/libs/(.*)", ServeEmbeddedFolder<Orthanc::EmbeddedResources::JAVASCRIPT_LIBS>); |
| 0 | 470 |
| 471 #if ORTHANC_STANDALONE == 1 | |
| 31 | 472 OrthancPluginRegisterRestCallback(context, "/web-viewer/app/(.*)", ServeEmbeddedFolder<Orthanc::EmbeddedResources::WEB_VIEWER>); |
| 0 | 473 #else |
| 474 OrthancPluginRegisterRestCallback(context, "/web-viewer/app/(.*)", ServeWebViewer); | |
| 475 #endif | |
| 476 | |
| 477 OrthancPluginRegisterOnChangeCallback(context, OnChangeCallback); | |
| 478 | |
| 479 | |
| 480 /* Extend the default Orthanc Explorer with custom JavaScript */ | |
| 481 std::string explorer; | |
| 31 | 482 Orthanc::EmbeddedResources::GetFileResource(explorer, Orthanc::EmbeddedResources::ORTHANC_EXPLORER); |
| 0 | 483 OrthancPluginExtendOrthancExplorer(context_, explorer.c_str()); |
| 484 | |
| 485 return 0; | |
| 486 } | |
| 487 | |
| 488 | |
| 489 ORTHANC_PLUGINS_API void OrthancPluginFinalize() | |
| 490 { | |
| 491 OrthancPluginLogWarning(context_, "Finalizing the Web viewer"); | |
| 492 | |
| 493 if (cache_ != NULL) | |
| 494 { | |
| 495 delete cache_; | |
| 496 cache_ = NULL; | |
| 497 } | |
| 498 } | |
| 499 | |
| 500 | |
| 501 ORTHANC_PLUGINS_API const char* OrthancPluginGetName() | |
| 502 { | |
| 503 return "web-viewer"; | |
| 504 } | |
| 505 | |
| 506 | |
| 507 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() | |
| 508 { | |
| 12 | 509 return ORTHANC_WEBVIEWER_VERSION; |
| 0 | 510 } |
| 511 } |