Mercurial > hg > orthanc-transfers
diff Framework/SourceDicomInstance.cpp @ 0:95226b754d9e
initial release
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 17 Sep 2018 11:34:55 +0200 |
parents | |
children | 4c3437217518 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/SourceDicomInstance.cpp Mon Sep 17 11:34:55 2018 +0200 @@ -0,0 +1,72 @@ +/** + * Transfers accelerator plugin for Orthanc + * Copyright (C) 2018 Osimis, 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 "SourceDicomInstance.h" + +#include <Core/Logging.h> +#include <Core/Toolbox.h> +#include <Plugins/Samples/Common/OrthancPluginCppWrapper.h> + + +namespace OrthancPlugins +{ + SourceDicomInstance::SourceDicomInstance(OrthancPluginContext* context, + const std::string& instanceId) : + context_(context) + { + LOG(INFO) << "Transfers accelerator reading DICOM instance: " << instanceId; + + MemoryBuffer buffer(context); + buffer.GetDicomInstance(instanceId); + + info_.reset(new DicomInstanceInfo(instanceId, buffer)); + + buffer_ = buffer.Release(); + } + + + SourceDicomInstance::~SourceDicomInstance() + { + OrthancPluginFreeMemoryBuffer(context_, &buffer_); + } + + + const DicomInstanceInfo& SourceDicomInstance::GetInfo() const + { + assert(info_.get() != NULL); + return *info_; + } + + + void SourceDicomInstance::GetChunk(std::string& target /* out */, + std::string& md5 /* out */, + size_t offset, + size_t size) const + { + if (offset + size > buffer_.size) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); + } + + const char* start = reinterpret_cast<const char*>(buffer_.data) + offset; + target.assign(start, start + size); + + Orthanc::Toolbox::ComputeMD5(md5, start, size); + } +}