Mercurial > hg > orthanc-stone
diff OrthancStone/Sources/Toolbox/ParsedDicomCache.cpp @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Toolbox/ParsedDicomCache.cpp@c38c89684d83 |
children | 85e117739eca |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancStone/Sources/Toolbox/ParsedDicomCache.cpp Tue Jul 07 16:21:02 2020 +0200 @@ -0,0 +1,143 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2020 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero General Public License + * as published by the Free Software Foundation, either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#include "ParsedDicomCache.h" + +namespace OrthancStone +{ + class ParsedDicomCache::Item : public Orthanc::ICacheable + { + private: + std::unique_ptr<Orthanc::ParsedDicomFile> dicom_; + size_t fileSize_; + bool hasPixelData_; + + public: + Item(Orthanc::ParsedDicomFile* dicom, + size_t fileSize, + bool hasPixelData) : + dicom_(dicom), + fileSize_(fileSize), + hasPixelData_(hasPixelData) + { + if (dicom == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); + } + } + + virtual size_t GetMemoryUsage() const + { + return fileSize_; + } + + Orthanc::ParsedDicomFile& GetDicom() const + { + assert(dicom_.get() != NULL); + return *dicom_; + } + + bool HasPixelData() const + { + return hasPixelData_; + } + }; + + + std::string ParsedDicomCache::GetIndex(unsigned int bucket, + const std::string& bucketKey) + { + return boost::lexical_cast<std::string>(bucket) + "|" + bucketKey; + } + + + void ParsedDicomCache::Acquire(unsigned int bucket, + const std::string& bucketKey, + Orthanc::ParsedDicomFile* dicom, + size_t fileSize, + bool hasPixelData) + { + LOG(TRACE) << "new item stored in cache: bucket " << bucket << ", key " << bucketKey; + cache_.Acquire(GetIndex(bucket, bucketKey), new Item(dicom, fileSize, hasPixelData)); + } + + + ParsedDicomCache::Reader::Reader(ParsedDicomCache& cache, + unsigned int bucket, + const std::string& bucketKey) : + /** + * The "DcmFileFormat" object cannot be accessed from multiple + * threads, even if using only getters. An unique lock (mutex) is + * mandatory. + **/ + accessor_(cache.cache_, GetIndex(bucket, bucketKey), true /* unique */) + { + if (accessor_.IsValid()) + { + LOG(TRACE) << "accessing item within cache: bucket " << bucket << ", key " << bucketKey; + item_ = &dynamic_cast<Item&>(accessor_.GetValue()); + } + else + { + LOG(TRACE) << "missing item within cache: bucket " << bucket << ", key " << bucketKey; + item_ = NULL; + } + } + + + bool ParsedDicomCache::Reader::HasPixelData() const + { + if (item_ == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + else + { + return item_->HasPixelData(); + } + } + + + Orthanc::ParsedDicomFile& ParsedDicomCache::Reader::GetDicom() const + { + if (item_ == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + else + { + return item_->GetDicom(); + } + } + + + size_t ParsedDicomCache::Reader::GetFileSize() const + { + if (item_ == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + else + { + return item_->GetMemoryUsage(); + } + } +}