Mercurial > hg > orthanc
annotate OrthancFramework/Sources/FileBuffer.cpp @ 5382:746a8a792a74
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| author | Alain Mazy <am@osimis.io> |
|---|---|
| date | Wed, 06 Sep 2023 13:05:42 +0200 |
| parents | 0ea402b4d901 |
| children | 48b8dae6dc77 |
| rev | line source |
|---|---|
| 3357 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 3357 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
|
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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9 * modify it under the terms of the GNU Lesser General Public License |
|
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4044
diff
changeset
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10 * as published by the Free Software Foundation, either version 3 of |
|
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4044
diff
changeset
|
11 * the License, or (at your option) any later version. |
| 3357 | 12 * |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
4119
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4044
diff
changeset
|
16 * Lesser General Public License for more details. |
| 3357 | 17 * |
|
4119
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4044
diff
changeset
|
18 * You should have received a copy of the GNU Lesser General Public |
|
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4044
diff
changeset
|
19 * License along with this program. If not, see |
|
bf7b9edf6b81
re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
4044
diff
changeset
|
20 * <http://www.gnu.org/licenses/>. |
| 3357 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "PrecompiledHeaders.h" | |
| 25 #include "FileBuffer.h" | |
| 26 | |
| 27 #include "TemporaryFile.h" | |
| 28 #include "OrthancException.h" | |
| 29 | |
| 30 #include <boost/filesystem/fstream.hpp> | |
| 31 | |
| 32 | |
| 33 namespace Orthanc | |
| 34 { | |
| 35 class FileBuffer::PImpl | |
| 36 { | |
| 37 private: | |
| 38 TemporaryFile file_; | |
| 39 boost::filesystem::ofstream stream_; | |
| 40 bool isWriting_; | |
| 41 | |
| 42 public: | |
| 43 PImpl() : | |
| 44 isWriting_(true) | |
| 45 { | |
| 46 stream_.open(file_.GetPath(), std::ofstream::out | std::ofstream::binary); | |
| 47 if (!stream_.good()) | |
| 48 { | |
| 49 throw OrthancException(ErrorCode_CannotWriteFile); | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 ~PImpl() | |
| 54 { | |
| 55 if (isWriting_) | |
| 56 { | |
| 57 stream_.close(); | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 void Append(const char* buffer, | |
| 62 size_t size) | |
| 63 { | |
| 64 if (!isWriting_) | |
| 65 { | |
| 66 throw OrthancException(ErrorCode_BadSequenceOfCalls); | |
| 67 } | |
| 68 | |
| 69 if (size > 0) | |
| 70 { | |
| 71 stream_.write(buffer, size); | |
| 72 if (!stream_.good()) | |
| 73 { | |
| 74 stream_.close(); | |
| 75 throw OrthancException(ErrorCode_FileStorageCannotWrite); | |
| 76 } | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 void Read(std::string& target) | |
| 81 { | |
| 82 if (isWriting_) | |
| 83 { | |
| 84 stream_.close(); | |
| 85 isWriting_ = false; | |
| 86 } | |
| 87 | |
| 88 file_.Read(target); | |
| 89 } | |
| 90 }; | |
| 91 | |
| 92 | |
| 93 FileBuffer::FileBuffer() : | |
| 94 pimpl_(new PImpl) | |
| 95 { | |
| 96 } | |
| 97 | |
| 98 | |
| 99 void FileBuffer::Append(const char* buffer, | |
| 100 size_t size) | |
| 101 { | |
| 102 assert(pimpl_.get() != NULL); | |
| 103 pimpl_->Append(buffer, size); | |
| 104 } | |
| 105 | |
| 106 | |
| 107 void FileBuffer::Read(std::string& target) | |
| 108 { | |
| 109 assert(pimpl_.get() != NULL); | |
| 110 pimpl_->Read(target); | |
| 111 } | |
| 112 } |