Mercurial > hg > orthanc
view Core/FileStorage/CompressedFileStorageAccessor.cpp @ 940:4864b3e304be
fix
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 25 Jun 2014 09:06:34 +0200 |
parents | a811bdf8b8eb |
children | 1d60316c3618 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, * Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * In addition, as a special exception, the copyright holders of this * program give permission to link the code of its release with the * OpenSSL project's "OpenSSL" library (or with modified versions of it * that use the same license as the "OpenSSL" library), and distribute * the linked executables. You must obey the GNU General Public License * in all respects for all of the code used other than "OpenSSL". If you * modify file(s) with this exception, you may extend this exception to * your version of the file(s), but you are not obligated to do so. If * you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files * in the program, then also delete it here. * * 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #include "CompressedFileStorageAccessor.h" #include "../OrthancException.h" #include "FileStorageAccessor.h" #include "../HttpServer/BufferHttpSender.h" namespace Orthanc { FileInfo CompressedFileStorageAccessor::WriteInternal(const void* data, size_t size, FileContentType type) { std::string md5; if (storeMD5_) { Toolbox::ComputeMD5(md5, data, size); } switch (compressionType_) { case CompressionType_None: { std::string uuid = storage_.Create(data, size); return FileInfo(uuid, type, size, md5); } case CompressionType_Zlib: { std::string compressed; zlib_.Compress(compressed, data, size); std::string compressedMD5; if (storeMD5_) { Toolbox::ComputeMD5(compressedMD5, compressed); } std::string uuid = storage_.Create(compressed); return FileInfo(uuid, type, size, md5, CompressionType_Zlib, compressed.size(), compressedMD5); } default: throw OrthancException(ErrorCode_NotImplemented); } } CompressedFileStorageAccessor::CompressedFileStorageAccessor(FileStorage& storage) : storage_(storage) { compressionType_ = CompressionType_None; } void CompressedFileStorageAccessor::Read(std::string& content, const std::string& uuid) { switch (compressionType_) { case CompressionType_None: storage_.ReadFile(content, uuid); break; case CompressionType_Zlib: { std::string compressed; storage_.ReadFile(compressed, uuid); zlib_.Uncompress(content, compressed); break; } default: throw OrthancException(ErrorCode_NotImplemented); } } HttpFileSender* CompressedFileStorageAccessor::ConstructHttpFileSender(const std::string& uuid) { switch (compressionType_) { case CompressionType_None: { FileStorageAccessor uncompressedAccessor(storage_); return uncompressedAccessor.ConstructHttpFileSender(uuid); } case CompressionType_Zlib: { std::string compressed; storage_.ReadFile(compressed, uuid); std::auto_ptr<BufferHttpSender> sender(new BufferHttpSender); zlib_.Uncompress(sender->GetBuffer(), compressed); return sender.release(); } default: throw OrthancException(ErrorCode_NotImplemented); } } }