Mercurial > hg > orthanc-webviewer
annotate Plugin/Plugin.cpp @ 102:21123729ac71 refactoring
simplification
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 30 Nov 2015 11:02:50 +0100 |
parents | f5b1a9267da0 |
children | 628697fdfcbd |
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 "SeriesInformationAdapter.h" | |
102 | 31 #include "../Orthanc/Plugins/Samples/GdcmDecoder/GdcmDecoderCache.h" |
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32 #include "../Orthanc/Core/Toolbox.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_; |
102 | 67 OrthancPlugins::GdcmDecoderCache decoder_; |
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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, indalidate the parent series of the instance |
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79 std::string uri = "/instances/" + std::string(instanceId); |
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80 Json::Value instance; |
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81 if (OrthancPlugins::GetJsonFromOrthanc(instance, context_, uri)) |
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82 { |
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83 std::string seriesId = instance["ParentSeries"].asString(); |
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84 cache->GetScheduler().Invalidate(OrthancPlugins::CacheBundle_SeriesInformation, seriesId); |
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85 } |
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86 } |
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87 } |
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88 } |
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89 |
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90 |
0 | 91 public: |
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92 CacheContext(const std::string& path) : storage_(path), stop_(false) |
0 | 93 { |
94 boost::filesystem::path p(path); | |
58 | 95 db_.Open((p / "cache.db").string()); |
0 | 96 |
58 | 97 cache_.reset(new OrthancPlugins::CacheManager(db_, storage_)); |
0 | 98 //cache_->SetSanityCheckEnabled(true); // For debug |
99 | |
100 scheduler_.reset(new OrthancPlugins::CacheScheduler(*cache_, 100)); | |
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101 |
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102 newInstancesThread_ = boost::thread(NewInstancesThread, this); |
0 | 103 } |
104 | |
58 | 105 ~CacheContext() |
106 { | |
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107 stop_ = true; |
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108 if (newInstancesThread_.joinable()) |
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109 { |
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110 newInstancesThread_.join(); |
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111 } |
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112 |
58 | 113 scheduler_.reset(NULL); |
114 cache_.reset(NULL); | |
115 } | |
116 | |
0 | 117 OrthancPlugins::CacheScheduler& GetScheduler() |
118 { | |
119 return *scheduler_; | |
120 } | |
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121 |
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122 void SignalNewInstance(const char* instanceId) |
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123 { |
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124 newInstances_.Enqueue(new DynamicString(instanceId)); |
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125 } |
102 | 126 |
127 OrthancPlugins::GdcmDecoderCache& GetDecoder() | |
128 { | |
129 return decoder_; | |
130 } | |
0 | 131 }; |
132 | |
133 | |
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134 |
0 | 135 static CacheContext* cache_ = NULL; |
136 | |
137 | |
138 | |
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139 static OrthancPluginErrorCode OnChangeCallback(OrthancPluginChangeType changeType, |
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140 OrthancPluginResourceType resourceType, |
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141 const char* resourceId) |
0 | 142 { |
143 try | |
144 { | |
145 if (changeType == OrthancPluginChangeType_NewInstance && | |
146 resourceType == OrthancPluginResourceType_Instance) | |
147 { | |
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148 cache_->SignalNewInstance(resourceId); |
0 | 149 } |
150 | |
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151 return OrthancPluginErrorCode_Success; |
0 | 152 } |
153 catch (std::runtime_error& e) | |
154 { | |
155 OrthancPluginLogError(context_, e.what()); | |
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156 return OrthancPluginErrorCode_Success; // Ignore error |
0 | 157 } |
158 } | |
159 | |
160 | |
161 | |
162 template <enum OrthancPlugins::CacheBundle bundle> | |
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163 static OrthancPluginErrorCode ServeCache(OrthancPluginRestOutput* output, |
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164 const char* url, |
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165 const OrthancPluginHttpRequest* request) |
0 | 166 { |
167 try | |
168 { | |
169 if (request->method != OrthancPluginHttpMethod_Get) | |
170 { | |
171 OrthancPluginSendMethodNotAllowed(context_, output, "GET"); | |
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172 return OrthancPluginErrorCode_Success; |
0 | 173 } |
174 | |
175 const std::string id = request->groups[0]; | |
176 std::string content; | |
177 | |
178 if (cache_->GetScheduler().Access(content, bundle, id)) | |
179 { | |
180 OrthancPluginAnswerBuffer(context_, output, content.c_str(), content.size(), "application/json"); | |
181 } | |
182 else | |
183 { | |
184 OrthancPluginSendHttpStatusCode(context_, output, 404); | |
185 } | |
186 | |
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187 return OrthancPluginErrorCode_Success; |
0 | 188 } |
189 catch (Orthanc::OrthancException& e) | |
190 { | |
191 OrthancPluginLogError(context_, e.What()); | |
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192 return OrthancPluginErrorCode_Plugin; |
0 | 193 } |
194 catch (std::runtime_error& e) | |
195 { | |
196 OrthancPluginLogError(context_, e.what()); | |
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197 return OrthancPluginErrorCode_Plugin; |
0 | 198 } |
199 catch (boost::bad_lexical_cast&) | |
200 { | |
201 OrthancPluginLogError(context_, "Bad lexical cast"); | |
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202 return OrthancPluginErrorCode_Plugin; |
0 | 203 } |
204 } | |
205 | |
206 | |
207 | |
208 | |
209 #if ORTHANC_STANDALONE == 0 | |
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210 static OrthancPluginErrorCode ServeWebViewer(OrthancPluginRestOutput* output, |
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211 const char* url, |
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212 const OrthancPluginHttpRequest* request) |
0 | 213 { |
214 if (request->method != OrthancPluginHttpMethod_Get) | |
215 { | |
216 OrthancPluginSendMethodNotAllowed(context_, output, "GET"); | |
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217 return OrthancPluginErrorCode_Success; |
0 | 218 } |
219 | |
220 const std::string path = std::string(WEB_VIEWER_PATH) + std::string(request->groups[0]); | |
221 const char* mime = OrthancPlugins::GetMimeType(path); | |
222 | |
223 std::string s; | |
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224 try |
0 | 225 { |
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226 Orthanc::Toolbox::ReadFile(s, path); |
0 | 227 const char* resource = s.size() ? s.c_str() : NULL; |
228 OrthancPluginAnswerBuffer(context_, output, resource, s.size(), mime); | |
229 } | |
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230 catch (Orthanc::OrthancException&) |
0 | 231 { |
232 std::string s = "Inexistent file in served folder: " + path; | |
233 OrthancPluginLogError(context_, s.c_str()); | |
234 OrthancPluginSendHttpStatusCode(context_, output, 404); | |
235 } | |
236 | |
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237 return OrthancPluginErrorCode_Success; |
0 | 238 } |
239 #endif | |
240 | |
241 | |
242 | |
31 | 243 template <enum Orthanc::EmbeddedResources::DirectoryResourceId folder> |
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244 static OrthancPluginErrorCode ServeEmbeddedFolder(OrthancPluginRestOutput* output, |
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245 const char* url, |
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246 const OrthancPluginHttpRequest* request) |
0 | 247 { |
248 if (request->method != OrthancPluginHttpMethod_Get) | |
249 { | |
250 OrthancPluginSendMethodNotAllowed(context_, output, "GET"); | |
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251 return OrthancPluginErrorCode_Success; |
0 | 252 } |
253 | |
254 std::string path = "/" + std::string(request->groups[0]); | |
255 const char* mime = OrthancPlugins::GetMimeType(path); | |
256 | |
257 try | |
258 { | |
259 std::string s; | |
31 | 260 Orthanc::EmbeddedResources::GetDirectoryResource(s, folder, path.c_str()); |
0 | 261 |
262 const char* resource = s.size() ? s.c_str() : NULL; | |
263 OrthancPluginAnswerBuffer(context_, output, resource, s.size(), mime); | |
264 | |
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265 return OrthancPluginErrorCode_Success; |
0 | 266 } |
267 catch (std::runtime_error&) | |
268 { | |
269 std::string s = "Unknown static resource in plugin: " + std::string(request->groups[0]); | |
270 OrthancPluginLogError(context_, s.c_str()); | |
271 OrthancPluginSendHttpStatusCode(context_, output, 404); | |
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272 return OrthancPluginErrorCode_Success; |
0 | 273 } |
274 } | |
275 | |
276 | |
277 | |
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278 static OrthancPluginErrorCode IsStableSeries(OrthancPluginRestOutput* output, |
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279 const char* url, |
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280 const OrthancPluginHttpRequest* request) |
19 | 281 { |
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282 try |
19 | 283 { |
284 if (request->method != OrthancPluginHttpMethod_Get) | |
285 { | |
286 OrthancPluginSendMethodNotAllowed(context_, output, "GET"); | |
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287 return OrthancPluginErrorCode_Success; |
19 | 288 } |
289 | |
290 const std::string id = request->groups[0]; | |
291 Json::Value series; | |
292 | |
293 if (OrthancPlugins::GetJsonFromOrthanc(series, context_, "/series/" + id) && | |
294 series.type() == Json::objectValue) | |
295 { | |
296 bool value = (series["IsStable"].asBool() || | |
297 series["Status"].asString() == "Complete"); | |
298 std::string answer = value ? "true" : "false"; | |
299 OrthancPluginAnswerBuffer(context_, output, answer.c_str(), answer.size(), "application/json"); | |
300 } | |
301 else | |
302 { | |
303 OrthancPluginSendHttpStatusCode(context_, output, 404); | |
304 } | |
305 | |
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306 return OrthancPluginErrorCode_Success; |
19 | 307 } |
308 catch (Orthanc::OrthancException& e) | |
309 { | |
310 OrthancPluginLogError(context_, e.What()); | |
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311 return OrthancPluginErrorCode_Plugin; |
19 | 312 } |
313 catch (std::runtime_error& e) | |
314 { | |
315 OrthancPluginLogError(context_, e.what()); | |
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316 return OrthancPluginErrorCode_Plugin; |
19 | 317 } |
318 catch (boost::bad_lexical_cast&) | |
319 { | |
320 OrthancPluginLogError(context_, "Bad lexical cast"); | |
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321 return OrthancPluginErrorCode_Plugin; |
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322 } |
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323 } |
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324 |
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325 |
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326 static OrthancPluginErrorCode DecodeImageCallback(OrthancPluginImage** target, |
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327 const void* dicom, |
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328 const uint32_t size, |
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329 uint32_t frameIndex) |
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330 { |
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331 try |
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332 { |
96 | 333 std::auto_ptr<OrthancPlugins::OrthancImageWrapper> image; |
334 | |
335 #if 0 | |
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336 // Do not use the cache |
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337 OrthancPlugins::GdcmImageDecoder decoder(dicom, size); |
96 | 338 image.reset(new OrthancPlugins::OrthancImageWrapper(context_, decoder, frameIndex)); |
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339 #else |
96 | 340 using namespace OrthancPlugins; |
102 | 341 image.reset(cache_->GetDecoder().Decode(context_, dicom, size, frameIndex)); |
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342 #endif |
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343 |
96 | 344 *target = image->Release(); |
345 | |
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346 return OrthancPluginErrorCode_Success; |
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347 } |
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348 catch (std::runtime_error& e) |
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349 { |
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350 *target = NULL; |
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351 |
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352 std::string s = "Cannot decode image using GDCM: " + std::string(e.what()); |
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353 OrthancPluginLogError(context_, s.c_str()); |
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354 return OrthancPluginErrorCode_Plugin; |
19 | 355 } |
356 } | |
357 | |
0 | 358 |
359 extern "C" | |
360 { | |
361 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context) | |
362 { | |
363 using namespace OrthancPlugins; | |
364 | |
365 context_ = context; | |
366 OrthancPluginLogWarning(context_, "Initializing the Web viewer"); | |
367 | |
368 | |
369 /* Check the version of the Orthanc core */ | |
370 if (OrthancPluginCheckVersion(context_) == 0) | |
371 { | |
372 char info[1024]; | |
373 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin", | |
374 context_->orthancVersion, | |
375 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, | |
376 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, | |
377 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); | |
378 OrthancPluginLogError(context_, info); | |
379 return -1; | |
380 } | |
381 | |
382 OrthancPluginSetDescription(context_, "Provides a Web viewer of DICOM series within Orthanc."); | |
383 | |
384 | |
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385 // Replace the default decoder of DICOM images that is built in Orthanc |
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386 OrthancPluginRegisterDecodeImageCallback(context_, DecodeImageCallback); |
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387 |
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388 |
0 | 389 /* By default, use half of the available processing cores for the decoding of DICOM images */ |
390 int decodingThreads = boost::thread::hardware_concurrency() / 2; | |
391 if (decodingThreads == 0) | |
392 { | |
393 decodingThreads = 1; | |
394 } | |
395 | |
396 | |
397 try | |
398 { | |
399 /* Read the configuration of the Web viewer */ | |
400 Json::Value configuration; | |
401 if (!ReadConfiguration(configuration, context)) | |
402 { | |
403 OrthancPluginLogError(context_, "Unable to read the configuration file of Orthanc"); | |
404 return -1; | |
405 } | |
406 | |
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407 // By default, the cache of the Web viewer is located inside the |
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408 // "StorageDirectory" of Orthanc |
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409 boost::filesystem::path cachePath = GetStringValue(configuration, "StorageDirectory", "."); |
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410 cachePath /= "WebViewerCache"; |
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411 int cacheSize = 100; // By default, a cache of 100 MB is used |
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412 |
0 | 413 if (configuration.isMember("WebViewer")) |
414 { | |
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415 std::string key = "CachePath"; |
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416 if (!configuration["WebViewer"].isMember(key)) |
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417 { |
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418 // For backward compatibility with the initial release of the Web viewer |
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419 key = "Cache"; |
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420 } |
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421 |
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422 cachePath = GetStringValue(configuration["WebViewer"], key, cachePath.string()); |
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423 cacheSize = GetIntegerValue(configuration["WebViewer"], "CacheSize", cacheSize); |
0 | 424 decodingThreads = GetIntegerValue(configuration["WebViewer"], "Threads", decodingThreads); |
425 } | |
426 | |
427 std::string message = ("Web viewer using " + boost::lexical_cast<std::string>(decodingThreads) + | |
428 " threads for the decoding of the DICOM images"); | |
429 OrthancPluginLogWarning(context_, message.c_str()); | |
430 | |
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431 if (decodingThreads <= 0 || |
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432 cacheSize <= 0) |
0 | 433 { |
434 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
435 } | |
436 | |
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437 message = "Storing the cache of the Web viewer in folder: " + cachePath.string(); |
0 | 438 OrthancPluginLogWarning(context_, message.c_str()); |
439 | |
440 | |
441 /* Create the cache */ | |
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442 cache_ = new CacheContext(cachePath.string()); |
0 | 443 cache_->GetScheduler().RegisterPolicy(new ViewerPrefetchPolicy(context_)); |
444 cache_->GetScheduler().Register(CacheBundle_SeriesInformation, | |
445 new SeriesInformationAdapter(context_, cache_->GetScheduler()), 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 |
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453 message = "Web viewer using a cache of " + boost::lexical_cast<std::string>(cacheSize) + " MB"; |
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454 OrthancPluginLogWarning(context_, message.c_str()); |
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455 |
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456 cache_->GetScheduler().SetQuota(CacheBundle_DecodedImage, 0, static_cast<uint64_t>(cacheSize) * 1024 * 1024); |
0 | 457 } |
458 catch (std::runtime_error& e) | |
459 { | |
460 OrthancPluginLogError(context_, e.what()); | |
461 return -1; | |
462 } | |
463 catch (Orthanc::OrthancException& e) | |
464 { | |
465 OrthancPluginLogError(context_, e.What()); | |
466 return -1; | |
467 } | |
468 | |
469 | |
470 /* Install the callbacks */ | |
471 OrthancPluginRegisterRestCallback(context_, "/web-viewer/series/(.*)", ServeCache<CacheBundle_SeriesInformation>); | |
19 | 472 OrthancPluginRegisterRestCallback(context_, "/web-viewer/is-stable-series/(.*)", IsStableSeries); |
0 | 473 OrthancPluginRegisterRestCallback(context_, "/web-viewer/instances/(.*)", ServeCache<CacheBundle_DecodedImage>); |
31 | 474 OrthancPluginRegisterRestCallback(context, "/web-viewer/libs/(.*)", ServeEmbeddedFolder<Orthanc::EmbeddedResources::JAVASCRIPT_LIBS>); |
0 | 475 |
476 #if ORTHANC_STANDALONE == 1 | |
31 | 477 OrthancPluginRegisterRestCallback(context, "/web-viewer/app/(.*)", ServeEmbeddedFolder<Orthanc::EmbeddedResources::WEB_VIEWER>); |
0 | 478 #else |
479 OrthancPluginRegisterRestCallback(context, "/web-viewer/app/(.*)", ServeWebViewer); | |
480 #endif | |
481 | |
482 OrthancPluginRegisterOnChangeCallback(context, OnChangeCallback); | |
483 | |
484 | |
485 /* Extend the default Orthanc Explorer with custom JavaScript */ | |
486 std::string explorer; | |
31 | 487 Orthanc::EmbeddedResources::GetFileResource(explorer, Orthanc::EmbeddedResources::ORTHANC_EXPLORER); |
0 | 488 OrthancPluginExtendOrthancExplorer(context_, explorer.c_str()); |
489 | |
490 return 0; | |
491 } | |
492 | |
493 | |
494 ORTHANC_PLUGINS_API void OrthancPluginFinalize() | |
495 { | |
496 OrthancPluginLogWarning(context_, "Finalizing the Web viewer"); | |
497 | |
498 if (cache_ != NULL) | |
499 { | |
500 delete cache_; | |
501 cache_ = NULL; | |
502 } | |
503 } | |
504 | |
505 | |
506 ORTHANC_PLUGINS_API const char* OrthancPluginGetName() | |
507 { | |
508 return "web-viewer"; | |
509 } | |
510 | |
511 | |
512 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() | |
513 { | |
12 | 514 return ORTHANC_WEBVIEWER_VERSION; |
0 | 515 } |
516 } |