Mercurial > hg > orthanc
view OrthancFramework/Sources/FileBuffer.cpp @ 4643:bd0ba9ff0efa
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 28 Apr 2021 12:31:18 +0200 |
parents | d9473bd5ed43 |
children | 7053502fbf97 |
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/** * 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 "FileBuffer.h" #include "TemporaryFile.h" #include "OrthancException.h" #include <boost/filesystem/fstream.hpp> namespace Orthanc { class FileBuffer::PImpl { private: TemporaryFile file_; boost::filesystem::ofstream stream_; bool isWriting_; public: PImpl() : isWriting_(true) { stream_.open(file_.GetPath(), std::ofstream::out | std::ofstream::binary); if (!stream_.good()) { throw OrthancException(ErrorCode_CannotWriteFile); } } ~PImpl() { if (isWriting_) { stream_.close(); } } void Append(const char* buffer, size_t size) { if (!isWriting_) { throw OrthancException(ErrorCode_BadSequenceOfCalls); } if (size > 0) { stream_.write(buffer, size); if (!stream_.good()) { stream_.close(); throw OrthancException(ErrorCode_FileStorageCannotWrite); } } } void Read(std::string& target) { if (isWriting_) { stream_.close(); isWriting_ = false; } file_.Read(target); } }; FileBuffer::FileBuffer() : pimpl_(new PImpl) { } void FileBuffer::Append(const char* buffer, size_t size) { assert(pimpl_.get() != NULL); pimpl_->Append(buffer, size); } void FileBuffer::Read(std::string& target) { assert(pimpl_.get() != NULL); pimpl_->Read(target); } }