Mercurial > hg > orthanc-webviewer
annotate Plugin/Plugin.cpp @ 98:745cc19aa32b refactoring
notes
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 27 Nov 2015 18:30:46 +0100 |
parents | a6ba21a083e5 |
children | 46ec13a1177c |
rev | line source |
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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 { |
96 | 330 std::auto_ptr<OrthancPlugins::OrthancImageWrapper> image; |
331 | |
332 #if 0 | |
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333 // Do not use the cache |
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334 OrthancPlugins::GdcmImageDecoder decoder(dicom, size); |
96 | 335 image.reset(new OrthancPlugins::OrthancImageWrapper(context_, decoder, frameIndex)); |
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336 #else |
96 | 337 using namespace OrthancPlugins; |
338 ICacheFactory& factory = cache_->GetScheduler().GetFactory(CacheBundle_DecodedImage); | |
339 image.reset(dynamic_cast<DecodedImageAdapter&>(factory).GetDecoderCache().Decode(context_, dicom, size, frameIndex)); | |
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340 #endif |
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341 |
96 | 342 *target = image->Release(); |
343 | |
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344 return OrthancPluginErrorCode_Success; |
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345 } |
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346 catch (std::runtime_error& e) |
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347 { |
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348 *target = NULL; |
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349 |
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350 std::string s = "Cannot decode image using GDCM: " + std::string(e.what()); |
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351 OrthancPluginLogError(context_, s.c_str()); |
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352 return OrthancPluginErrorCode_Plugin; |
19 | 353 } |
354 } | |
355 | |
0 | 356 |
357 extern "C" | |
358 { | |
359 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context) | |
360 { | |
361 using namespace OrthancPlugins; | |
362 | |
363 context_ = context; | |
364 OrthancPluginLogWarning(context_, "Initializing the Web viewer"); | |
365 | |
366 | |
367 /* Check the version of the Orthanc core */ | |
368 if (OrthancPluginCheckVersion(context_) == 0) | |
369 { | |
370 char info[1024]; | |
371 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin", | |
372 context_->orthancVersion, | |
373 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, | |
374 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, | |
375 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); | |
376 OrthancPluginLogError(context_, info); | |
377 return -1; | |
378 } | |
379 | |
380 OrthancPluginSetDescription(context_, "Provides a Web viewer of DICOM series within Orthanc."); | |
381 | |
382 | |
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383 // Replace the default decoder of DICOM images that is built in Orthanc |
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384 OrthancPluginRegisterDecodeImageCallback(context_, DecodeImageCallback); |
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385 |
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386 |
0 | 387 /* By default, use half of the available processing cores for the decoding of DICOM images */ |
388 int decodingThreads = boost::thread::hardware_concurrency() / 2; | |
389 if (decodingThreads == 0) | |
390 { | |
391 decodingThreads = 1; | |
392 } | |
393 | |
394 | |
395 try | |
396 { | |
397 /* Read the configuration of the Web viewer */ | |
398 Json::Value configuration; | |
399 if (!ReadConfiguration(configuration, context)) | |
400 { | |
401 OrthancPluginLogError(context_, "Unable to read the configuration file of Orthanc"); | |
402 return -1; | |
403 } | |
404 | |
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405 // By default, the cache of the Web viewer is located inside the |
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406 // "StorageDirectory" of Orthanc |
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407 boost::filesystem::path cachePath = GetStringValue(configuration, "StorageDirectory", "."); |
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408 cachePath /= "WebViewerCache"; |
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409 int cacheSize = 100; // By default, a cache of 100 MB is used |
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410 |
0 | 411 if (configuration.isMember("WebViewer")) |
412 { | |
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413 std::string key = "CachePath"; |
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414 if (!configuration["WebViewer"].isMember(key)) |
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415 { |
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416 // For backward compatibility with the initial release of the Web viewer |
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417 key = "Cache"; |
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418 } |
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419 |
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420 cachePath = GetStringValue(configuration["WebViewer"], key, cachePath.string()); |
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421 cacheSize = GetIntegerValue(configuration["WebViewer"], "CacheSize", cacheSize); |
0 | 422 decodingThreads = GetIntegerValue(configuration["WebViewer"], "Threads", decodingThreads); |
423 } | |
424 | |
425 std::string message = ("Web viewer using " + boost::lexical_cast<std::string>(decodingThreads) + | |
426 " threads for the decoding of the DICOM images"); | |
427 OrthancPluginLogWarning(context_, message.c_str()); | |
428 | |
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429 if (decodingThreads <= 0 || |
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430 cacheSize <= 0) |
0 | 431 { |
432 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
433 } | |
434 | |
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435 message = "Storing the cache of the Web viewer in folder: " + cachePath.string(); |
0 | 436 OrthancPluginLogWarning(context_, message.c_str()); |
437 | |
438 | |
439 /* Create the cache */ | |
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440 cache_ = new CacheContext(cachePath.string()); |
0 | 441 cache_->GetScheduler().RegisterPolicy(new ViewerPrefetchPolicy(context_)); |
442 cache_->GetScheduler().Register(CacheBundle_SeriesInformation, | |
443 new SeriesInformationAdapter(context_, cache_->GetScheduler()), 1); | |
444 cache_->GetScheduler().Register(CacheBundle_InstanceInformation, | |
445 new InstanceInformationAdapter(context_), 1); | |
446 cache_->GetScheduler().Register(CacheBundle_DecodedImage, | |
447 new DecodedImageAdapter(context_), decodingThreads); | |
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448 |
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449 |
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450 /* Set the quotas */ |
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451 cache_->GetScheduler().SetQuota(CacheBundle_SeriesInformation, 1000, 0); // Keep info about 1000 series |
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452 cache_->GetScheduler().SetQuota(CacheBundle_InstanceInformation, 10000, 0); // Keep info about 10,000 instances |
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453 |
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454 message = "Web viewer using a cache of " + boost::lexical_cast<std::string>(cacheSize) + " MB"; |
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455 OrthancPluginLogWarning(context_, message.c_str()); |
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456 |
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457 cache_->GetScheduler().SetQuota(CacheBundle_DecodedImage, 0, static_cast<uint64_t>(cacheSize) * 1024 * 1024); |
0 | 458 } |
459 catch (std::runtime_error& e) | |
460 { | |
461 OrthancPluginLogError(context_, e.what()); | |
462 return -1; | |
463 } | |
464 catch (Orthanc::OrthancException& e) | |
465 { | |
466 OrthancPluginLogError(context_, e.What()); | |
467 return -1; | |
468 } | |
469 | |
470 | |
471 /* Install the callbacks */ | |
472 OrthancPluginRegisterRestCallback(context_, "/web-viewer/series/(.*)", ServeCache<CacheBundle_SeriesInformation>); | |
19 | 473 OrthancPluginRegisterRestCallback(context_, "/web-viewer/is-stable-series/(.*)", IsStableSeries); |
0 | 474 OrthancPluginRegisterRestCallback(context_, "/web-viewer/instances/(.*)", ServeCache<CacheBundle_DecodedImage>); |
31 | 475 OrthancPluginRegisterRestCallback(context, "/web-viewer/libs/(.*)", ServeEmbeddedFolder<Orthanc::EmbeddedResources::JAVASCRIPT_LIBS>); |
0 | 476 |
477 #if ORTHANC_STANDALONE == 1 | |
31 | 478 OrthancPluginRegisterRestCallback(context, "/web-viewer/app/(.*)", ServeEmbeddedFolder<Orthanc::EmbeddedResources::WEB_VIEWER>); |
0 | 479 #else |
480 OrthancPluginRegisterRestCallback(context, "/web-viewer/app/(.*)", ServeWebViewer); | |
481 #endif | |
482 | |
483 OrthancPluginRegisterOnChangeCallback(context, OnChangeCallback); | |
484 | |
485 | |
486 /* Extend the default Orthanc Explorer with custom JavaScript */ | |
487 std::string explorer; | |
31 | 488 Orthanc::EmbeddedResources::GetFileResource(explorer, Orthanc::EmbeddedResources::ORTHANC_EXPLORER); |
0 | 489 OrthancPluginExtendOrthancExplorer(context_, explorer.c_str()); |
490 | |
491 return 0; | |
492 } | |
493 | |
494 | |
495 ORTHANC_PLUGINS_API void OrthancPluginFinalize() | |
496 { | |
497 OrthancPluginLogWarning(context_, "Finalizing the Web viewer"); | |
498 | |
499 if (cache_ != NULL) | |
500 { | |
501 delete cache_; | |
502 cache_ = NULL; | |
503 } | |
504 } | |
505 | |
506 | |
507 ORTHANC_PLUGINS_API const char* OrthancPluginGetName() | |
508 { | |
509 return "web-viewer"; | |
510 } | |
511 | |
512 | |
513 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() | |
514 { | |
12 | 515 return ORTHANC_WEBVIEWER_VERSION; |
0 | 516 } |
517 } |