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comparison Framework/SourceDicomInstance.cpp @ 0:95226b754d9e

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initial release
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 17 Sep 2018 11:34:55 +0200
parents
children 4c3437217518
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-1:000000000000 0:95226b754d9e
1 /**
2 * Transfers accelerator plugin for Orthanc
3 * Copyright (C) 2018 Osimis, Belgium
4 *
5 * This program is free software: you can redistribute it and/or
6 * modify it under the terms of the GNU Affero General Public License
7 * as published by the Free Software Foundation, either version 3 of
8 * the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Affero General Public License for more details.
14 *
15 * You should have received a copy of the GNU Affero General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 **/
18
19
20 #include "SourceDicomInstance.h"
21
22 #include <Core/Logging.h>
23 #include <Core/Toolbox.h>
24 #include <Plugins/Samples/Common/OrthancPluginCppWrapper.h>
25
26
27 namespace OrthancPlugins
28 {
29 SourceDicomInstance::SourceDicomInstance(OrthancPluginContext* context,
30 const std::string& instanceId) :
31 context_(context)
32 {
33 LOG(INFO) << "Transfers accelerator reading DICOM instance: " << instanceId;
34
35 MemoryBuffer buffer(context);
36 buffer.GetDicomInstance(instanceId);
37
38 info_.reset(new DicomInstanceInfo(instanceId, buffer));
39
40 buffer_ = buffer.Release();
41 }
42
43
44 SourceDicomInstance::~SourceDicomInstance()
45 {
46 OrthancPluginFreeMemoryBuffer(context_, &buffer_);
47 }
48
49
50 const DicomInstanceInfo& SourceDicomInstance::GetInfo() const
51 {
52 assert(info_.get() != NULL);
53 return *info_;
54 }
55
56
57 void SourceDicomInstance::GetChunk(std::string& target /* out */,
58 std::string& md5 /* out */,
59 size_t offset,
60 size_t size) const
61 {
62 if (offset + size > buffer_.size)
63 {
64 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
65 }
66
67 const char* start = reinterpret_cast<const char*>(buffer_.data) + offset;
68 target.assign(start, start + size);
69
70 Orthanc::Toolbox::ComputeMD5(md5, start, size);
71 }
72 }