Mercurial > hg > orthanc
diff OrthancFramework/Sources/FileStorage/StorageCache.cpp @ 4792:434843934307 storage-cache
Added a StorageCache in the StorageAccessor
author | Alain Mazy <am@osimis.io> |
---|---|
date | Thu, 30 Sep 2021 12:14:19 +0200 |
parents | |
children | 6c276fac0cc0 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancFramework/Sources/FileStorage/StorageCache.cpp Thu Sep 30 12:14:19 2021 +0200 @@ -0,0 +1,118 @@ +/** + * Orthanc - A Lightweight, RESTful DICOM Store + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2021 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program. If not, see + * <http://www.gnu.org/licenses/>. + **/ + + +#include "../PrecompiledHeaders.h" +#include "StorageCache.h" + +#include "../Compatibility.h" +#include "../OrthancException.h" + + + +namespace Orthanc +{ + bool IsAcceptedContentType(FileContentType contentType) + { + return contentType == FileContentType_Dicom || + contentType == FileContentType_DicomUntilPixelData || + contentType == FileContentType_DicomAsJson; + } + + const char* ToString(FileContentType contentType) + { + switch (contentType) + { + case FileContentType_Dicom: + return "dicom"; + case FileContentType_DicomUntilPixelData: + return "dicom-header"; + case FileContentType_DicomAsJson: + return "dicom-json"; + default: + throw OrthancException(ErrorCode_InternalError, + "ContentType not supported in StorageCache"); + } + } + + void GetCacheKey(std::string& key, const std::string& uuid, FileContentType contentType) + { + key = uuid + ":" + std::string(ToString(contentType)); + } + + void StorageCache::SetMaximumSize(size_t size) + { + cache_.SetMaximumSize(size); + } + + void StorageCache::Add(const std::string& uuid, + FileContentType contentType, + const std::string& value) + { + if (!IsAcceptedContentType(contentType)) + { + return; + } + + std::string key; + GetCacheKey(key, uuid, contentType); + cache_.Add(key, value); + } + + void StorageCache::Add(const std::string& uuid, + FileContentType contentType, + const void* buffer, + size_t size) + { + if (!IsAcceptedContentType(contentType)) + { + return; + } + + std::string key; + GetCacheKey(key, uuid, contentType); + cache_.Add(key, buffer, size); + } + + void StorageCache::Invalidate(const std::string& uuid, FileContentType contentType) + { + std::string key; + GetCacheKey(key, uuid, contentType); + cache_.Invalidate(key); + } + + bool StorageCache::Fetch(std::string& value, + const std::string& uuid, + FileContentType contentType) + { + if (!IsAcceptedContentType(contentType)) + { + return false; + } + + std::string key; + GetCacheKey(key, uuid, contentType); + + return cache_.Fetch(value, key); + } + + +} \ No newline at end of file