Mercurial > hg > orthanc
annotate OrthancServer/ResourceFinder.cpp @ 1737:ec66a16aa398
removal of DicomStringValue and DicomNullValue
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 22 Oct 2015 07:52:24 +0200 |
| parents | 21d31da73374 |
| children | 1ae29c5e52fb |
| rev | line source |
|---|---|
| 1358 | 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 General Public License as | |
| 8 * published by the Free Software Foundation, either version 3 of the | |
| 9 * License, or (at your option) any later version. | |
| 10 * | |
| 11 * In addition, as a special exception, the copyright holders of this | |
| 12 * program give permission to link the code of its release with the | |
| 13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 14 * that use the same license as the "OpenSSL" library), and distribute | |
| 15 * the linked executables. You must obey the GNU General Public License | |
| 16 * in all respects for all of the code used other than "OpenSSL". If you | |
| 17 * modify file(s) with this exception, you may extend this exception to | |
| 18 * your version of the file(s), but you are not obligated to do so. If | |
| 19 * you do not wish to do so, delete this exception statement from your | |
| 20 * version. If you delete this exception statement from all source files | |
| 21 * in the program, then also delete it here. | |
| 22 * | |
| 23 * This program is distributed in the hope that it will be useful, but | |
| 24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 26 * General Public License for more details. | |
| 27 * | |
| 28 * You should have received a copy of the GNU General Public License | |
| 29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 30 **/ | |
| 31 | |
| 32 | |
| 33 #include "PrecompiledHeadersServer.h" | |
| 1360 | 34 #include "ResourceFinder.h" |
| 1359 | 35 |
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36 #include "../Core/Logging.h" |
| 1359 | 37 #include "FromDcmtkBridge.h" |
| 38 #include "ServerContext.h" | |
| 39 | |
| 1358 | 40 namespace Orthanc |
| 41 { | |
| 1360 | 42 class ResourceFinder::CandidateResources |
| 1358 | 43 { |
| 1359 | 44 private: |
| 45 typedef std::map<DicomTag, std::string> Query; | |
| 46 | |
| 1360 | 47 ResourceFinder& finder_; |
| 1359 | 48 ServerIndex& index_; |
| 49 ResourceType level_; | |
| 50 bool isFilterApplied_; | |
| 51 std::set<std::string> filtered_; | |
| 52 | |
| 53 | |
| 54 static void ListToSet(std::set<std::string>& target, | |
| 55 const std::list<std::string>& source) | |
| 56 { | |
| 57 for (std::list<std::string>::const_iterator | |
| 58 it = source.begin(); it != source.end(); ++it) | |
| 59 { | |
| 60 target.insert(*it); | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 | |
| 65 public: | |
| 1360 | 66 CandidateResources(ResourceFinder& finder) : |
| 1359 | 67 finder_(finder), |
| 68 index_(finder.context_.GetIndex()), | |
| 69 level_(ResourceType_Patient), | |
| 70 isFilterApplied_(false) | |
| 71 { | |
| 72 } | |
| 73 | |
| 74 ResourceType GetLevel() const | |
| 1358 | 75 { |
| 1359 | 76 return level_; |
| 77 } | |
| 78 | |
| 79 void GoDown() | |
| 80 { | |
| 81 assert(level_ != ResourceType_Instance); | |
| 82 | |
| 83 if (isFilterApplied_) | |
| 84 { | |
| 85 std::set<std::string> tmp = filtered_; | |
| 86 | |
| 87 filtered_.clear(); | |
| 88 | |
| 89 for (std::set<std::string>::const_iterator | |
| 90 it = tmp.begin(); it != tmp.end(); ++it) | |
| 91 { | |
| 92 std::list<std::string> children; | |
| 93 try | |
| 94 { | |
| 95 index_.GetChildren(children, *it); | |
| 96 ListToSet(filtered_, children); | |
| 97 } | |
| 98 catch (OrthancException&) | |
| 99 { | |
| 100 // The resource was removed in the meantime | |
| 101 } | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 switch (level_) | |
| 1358 | 106 { |
| 1359 | 107 case ResourceType_Patient: |
| 108 level_ = ResourceType_Study; | |
| 109 break; | |
| 110 | |
| 111 case ResourceType_Study: | |
| 112 level_ = ResourceType_Series; | |
| 113 break; | |
| 114 | |
| 115 case ResourceType_Series: | |
| 116 level_ = ResourceType_Instance; | |
| 117 break; | |
| 118 | |
| 119 default: | |
| 120 throw OrthancException(ErrorCode_InternalError); | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 | |
| 125 void Flatten(std::list<std::string>& resources) const | |
| 126 { | |
| 127 resources.clear(); | |
| 128 | |
| 129 if (isFilterApplied_) | |
| 130 { | |
| 131 for (std::set<std::string>::const_iterator | |
| 132 it = filtered_.begin(); it != filtered_.end(); ++it) | |
| 133 { | |
| 134 resources.push_back(*it); | |
| 135 } | |
| 136 } | |
| 137 else | |
| 138 { | |
| 139 index_.GetAllUuids(resources, level_); | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 | |
| 1360 | 144 void RestrictIdentifier(const IQuery& query, |
| 145 const DicomTag& tag) | |
| 1359 | 146 { |
| 1360 | 147 assert((level_ == ResourceType_Patient && tag == DICOM_TAG_PATIENT_ID) || |
| 148 (level_ == ResourceType_Study && tag == DICOM_TAG_STUDY_INSTANCE_UID) || | |
| 149 (level_ == ResourceType_Study && tag == DICOM_TAG_ACCESSION_NUMBER) || | |
| 150 (level_ == ResourceType_Series && tag == DICOM_TAG_SERIES_INSTANCE_UID) || | |
| 151 (level_ == ResourceType_Instance && tag == DICOM_TAG_SOP_INSTANCE_UID)); | |
| 152 | |
| 153 std::string value; | |
| 154 if (!query.RestrictIdentifier(value, tag)) | |
| 155 { | |
| 156 return; | |
| 157 } | |
| 158 | |
| 159 LOG(INFO) << "Lookup for identifier tag " | |
| 160 << FromDcmtkBridge::GetName(tag) << " (value: " << value << ")"; | |
| 161 | |
| 162 std::list<std::string> resources; | |
| 163 index_.LookupIdentifier(resources, tag, value, level_); | |
| 164 | |
| 165 if (isFilterApplied_) | |
| 1359 | 166 { |
| 1360 | 167 std::set<std::string> s; |
| 168 ListToSet(s, resources); | |
| 169 | |
| 170 std::set<std::string> tmp = filtered_; | |
| 171 filtered_.clear(); | |
| 172 | |
| 173 for (std::set<std::string>::const_iterator | |
| 174 it = tmp.begin(); it != tmp.end(); ++it) | |
| 175 { | |
| 176 if (s.find(*it) != s.end()) | |
| 177 { | |
| 178 filtered_.insert(*it); | |
| 179 } | |
| 180 } | |
| 181 } | |
| 182 else | |
| 183 { | |
| 184 assert(filtered_.empty()); | |
| 185 isFilterApplied_ = true; | |
| 186 ListToSet(filtered_, resources); | |
| 1359 | 187 } |
| 188 } | |
| 189 | |
| 190 | |
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191 void RestrictMainDicomTags(const IQuery& query, |
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192 bool filterPatientTagsAtStudyLevel) |
| 1359 | 193 { |
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194 if (filterPatientTagsAtStudyLevel && |
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195 level_ == ResourceType_Patient) |
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196 { |
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197 return; |
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198 } |
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199 |
| 1683 | 200 bool hasTagsAtThisLevel = query.HasMainDicomTagsFilter(level_); |
| 201 bool hasTagsAtPatientLevel = (filterPatientTagsAtStudyLevel && | |
| 202 level_ == ResourceType_Study && | |
| 203 query.HasMainDicomTagsFilter(ResourceType_Patient)); | |
| 204 | |
| 205 if (!hasTagsAtThisLevel && !hasTagsAtPatientLevel) | |
| 1359 | 206 { |
| 207 return; | |
| 1358 | 208 } |
| 209 | |
| 1359 | 210 std::list<std::string> resources; |
| 211 Flatten(resources); | |
| 212 | |
| 213 isFilterApplied_ = true; | |
| 214 filtered_.clear(); | |
| 215 | |
| 216 for (std::list<std::string>::const_iterator | |
| 1384 | 217 it = resources.begin(); it != resources.end(); ++it) |
| 1359 | 218 { |
| 219 DicomMap mainTags; | |
| 1683 | 220 |
| 221 if (hasTagsAtThisLevel && | |
| 222 (!index_.GetMainDicomTags(mainTags, *it, level_, level_) || | |
| 223 !query.FilterMainDicomTags(*it, level_, mainTags))) | |
| 1359 | 224 { |
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225 continue; |
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226 } |
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227 |
| 1683 | 228 if (hasTagsAtPatientLevel && |
| 229 (!index_.GetMainDicomTags(mainTags, *it, ResourceType_Study, ResourceType_Patient) || | |
| 230 !query.FilterMainDicomTags(*it, ResourceType_Patient, mainTags))) | |
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231 { |
| 1683 | 232 continue; |
| 1359 | 233 } |
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234 |
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235 filtered_.insert(*it); |
| 1359 | 236 } |
| 237 } | |
| 238 }; | |
| 239 | |
| 240 | |
| 1360 | 241 ResourceFinder::ResourceFinder(ServerContext& context) : |
| 1359 | 242 context_(context), |
| 243 maxResults_(0) | |
| 244 { | |
| 245 } | |
| 246 | |
| 247 | |
| 1360 | 248 void ResourceFinder::ApplyAtLevel(CandidateResources& candidates, |
| 249 const IQuery& query, | |
| 250 ResourceType level) | |
| 1359 | 251 { |
| 252 if (level != ResourceType_Patient) | |
| 253 { | |
| 254 candidates.GoDown(); | |
| 255 } | |
| 256 | |
| 1360 | 257 switch (level) |
| 1359 | 258 { |
| 259 case ResourceType_Patient: | |
| 260 { | |
| 1360 | 261 candidates.RestrictIdentifier(query, DICOM_TAG_PATIENT_ID); |
| 1359 | 262 break; |
| 263 } | |
| 264 | |
| 265 case ResourceType_Study: | |
| 266 { | |
| 1360 | 267 candidates.RestrictIdentifier(query, DICOM_TAG_STUDY_INSTANCE_UID); |
| 268 candidates.RestrictIdentifier(query, DICOM_TAG_ACCESSION_NUMBER); | |
| 1359 | 269 break; |
| 270 } | |
| 271 | |
| 272 case ResourceType_Series: | |
| 273 { | |
| 1360 | 274 candidates.RestrictIdentifier(query, DICOM_TAG_SERIES_INSTANCE_UID); |
| 1359 | 275 break; |
| 276 } | |
| 277 | |
| 278 case ResourceType_Instance: | |
| 279 { | |
| 1360 | 280 candidates.RestrictIdentifier(query, DICOM_TAG_SOP_INSTANCE_UID); |
| 1359 | 281 break; |
| 282 } | |
| 283 | |
| 284 default: | |
| 285 throw OrthancException(ErrorCode_InternalError); | |
| 286 } | |
| 287 | |
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288 if (query.GetLevel() == ResourceType_Patient) |
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289 { |
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290 candidates.RestrictMainDicomTags(query, false); |
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291 } |
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292 else |
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293 { |
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294 candidates.RestrictMainDicomTags(query, true); |
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295 } |
| 1359 | 296 } |
| 297 | |
| 298 | |
| 299 | |
| 300 static bool LookupOneInstance(std::string& result, | |
| 301 ServerIndex& index, | |
| 302 const std::string& id, | |
| 303 ResourceType type) | |
| 304 { | |
| 305 if (type == ResourceType_Instance) | |
| 306 { | |
| 307 result = id; | |
| 308 return true; | |
| 309 } | |
| 310 | |
| 311 std::string childId; | |
| 1358 | 312 |
| 1359 | 313 { |
| 314 std::list<std::string> children; | |
| 315 index.GetChildInstances(children, id); | |
| 316 | |
| 317 if (children.empty()) | |
| 318 { | |
| 319 return false; | |
| 320 } | |
| 321 | |
| 322 childId = children.front(); | |
| 323 } | |
| 324 | |
| 325 return LookupOneInstance(result, index, childId, GetChildResourceType(type)); | |
| 1358 | 326 } |
| 327 | |
| 1359 | 328 |
| 1360 | 329 bool ResourceFinder::Apply(std::list<std::string>& result, |
| 330 const IQuery& query) | |
| 1359 | 331 { |
| 332 CandidateResources candidates(*this); | |
| 333 | |
| 1360 | 334 ApplyAtLevel(candidates, query, ResourceType_Patient); |
| 335 | |
| 336 const ResourceType level = query.GetLevel(); | |
| 1359 | 337 |
| 1360 | 338 if (level == ResourceType_Study || |
| 339 level == ResourceType_Series || | |
| 340 level == ResourceType_Instance) | |
| 1359 | 341 { |
| 1360 | 342 ApplyAtLevel(candidates, query, ResourceType_Study); |
| 1359 | 343 } |
| 344 | |
| 1360 | 345 if (level == ResourceType_Series || |
| 346 level == ResourceType_Instance) | |
| 1359 | 347 { |
| 1360 | 348 ApplyAtLevel(candidates, query, ResourceType_Series); |
| 1359 | 349 } |
| 350 | |
| 1360 | 351 if (level == ResourceType_Instance) |
| 1359 | 352 { |
| 1360 | 353 ApplyAtLevel(candidates, query, ResourceType_Instance); |
| 1359 | 354 } |
| 355 | |
| 1360 | 356 if (!query.HasInstanceFilter()) |
| 1359 | 357 { |
| 358 candidates.Flatten(result); | |
| 359 | |
| 360 if (maxResults_ != 0 && | |
| 361 result.size() >= maxResults_) | |
| 362 { | |
| 363 result.resize(maxResults_); | |
| 364 return false; | |
| 365 } | |
| 366 else | |
| 367 { | |
| 368 return true; | |
| 369 } | |
| 370 } | |
| 371 else | |
| 372 { | |
| 373 std::list<std::string> tmp; | |
| 374 candidates.Flatten(tmp); | |
| 375 | |
| 376 result.clear(); | |
| 377 for (std::list<std::string>::const_iterator | |
| 378 resource = tmp.begin(); resource != tmp.end(); ++resource) | |
| 379 { | |
| 380 try | |
| 381 { | |
| 382 std::string instance; | |
| 1360 | 383 if (LookupOneInstance(instance, context_.GetIndex(), *resource, level)) |
| 1359 | 384 { |
| 385 Json::Value content; | |
| 386 context_.ReadJson(content, instance); | |
| 1360 | 387 if (query.FilterInstance(*resource, content)) |
| 1359 | 388 { |
| 389 result.push_back(*resource); | |
| 390 | |
| 391 if (maxResults_ != 0 && | |
| 392 result.size() >= maxResults_) | |
| 393 { | |
| 394 // Too many results, stop before recording this new match | |
| 395 return false; | |
| 396 } | |
| 397 } | |
| 398 } | |
| 399 } | |
| 400 catch (OrthancException&) | |
| 401 { | |
| 402 // This resource has been deleted since the search was started | |
| 403 } | |
| 404 } | |
| 405 } | |
| 406 | |
| 407 return true; // All the matching resources have been returned | |
| 408 } | |
| 1358 | 409 } |