Mercurial > hg > orthanc
annotate Core/FileStorage/CompressedFileStorageAccessor.cpp @ 1072:1dffa9f44a94
conformance
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 28 Jul 2014 13:31:35 +0200 |
| parents | a811bdf8b8eb |
| children | 1d60316c3618 |
| rev | line source |
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| 221 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
| 221 | 4 * Belgium |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU General Public License as | |
| 8 * published by the Free Software Foundation, either version 3 of the | |
| 9 * License, or (at your option) any later version. | |
| 10 * | |
| 11 * In addition, as a special exception, the copyright holders of this | |
| 12 * program give permission to link the code of its release with the | |
| 13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 14 * that use the same license as the "OpenSSL" library), and distribute | |
| 15 * the linked executables. You must obey the GNU General Public License | |
| 16 * in all respects for all of the code used other than "OpenSSL". If you | |
| 17 * modify file(s) with this exception, you may extend this exception to | |
| 18 * your version of the file(s), but you are not obligated to do so. If | |
| 19 * you do not wish to do so, delete this exception statement from your | |
| 20 * version. If you delete this exception statement from all source files | |
| 21 * in the program, then also delete it here. | |
| 22 * | |
| 23 * This program is distributed in the hope that it will be useful, but | |
| 24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 26 * General Public License for more details. | |
| 27 * | |
| 28 * You should have received a copy of the GNU General Public License | |
| 29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 30 **/ | |
| 31 | |
| 32 | |
|
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33 #include "../PrecompiledHeaders.h" |
| 221 | 34 #include "CompressedFileStorageAccessor.h" |
| 35 | |
| 36 #include "../OrthancException.h" | |
| 37 #include "FileStorageAccessor.h" | |
| 38 #include "../HttpServer/BufferHttpSender.h" | |
| 39 | |
| 40 namespace Orthanc | |
| 41 { | |
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42 FileInfo CompressedFileStorageAccessor::WriteInternal(const void* data, |
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43 size_t size, |
| 233 | 44 FileContentType type) |
| 221 | 45 { |
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46 std::string md5; |
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47 |
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48 if (storeMD5_) |
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49 { |
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50 Toolbox::ComputeMD5(md5, data, size); |
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51 } |
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52 |
| 221 | 53 switch (compressionType_) |
| 54 { | |
| 55 case CompressionType_None: | |
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56 { |
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57 std::string uuid = storage_.Create(data, size); |
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58 return FileInfo(uuid, type, size, md5); |
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59 } |
| 221 | 60 |
| 61 case CompressionType_Zlib: | |
| 62 { | |
| 63 std::string compressed; | |
| 64 zlib_.Compress(compressed, data, size); | |
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65 |
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66 std::string compressedMD5; |
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67 |
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68 if (storeMD5_) |
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69 { |
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70 Toolbox::ComputeMD5(compressedMD5, compressed); |
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71 } |
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72 |
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73 std::string uuid = storage_.Create(compressed); |
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74 return FileInfo(uuid, type, size, md5, |
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75 CompressionType_Zlib, compressed.size(), compressedMD5); |
| 221 | 76 } |
| 77 | |
| 78 default: | |
| 79 throw OrthancException(ErrorCode_NotImplemented); | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 CompressedFileStorageAccessor::CompressedFileStorageAccessor(FileStorage& storage) : | |
| 84 storage_(storage) | |
| 85 { | |
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86 compressionType_ = CompressionType_None; |
| 221 | 87 } |
| 88 | |
| 89 void CompressedFileStorageAccessor::Read(std::string& content, | |
| 90 const std::string& uuid) | |
| 91 { | |
| 92 switch (compressionType_) | |
| 93 { | |
| 94 case CompressionType_None: | |
| 95 storage_.ReadFile(content, uuid); | |
| 96 break; | |
| 97 | |
| 98 case CompressionType_Zlib: | |
| 99 { | |
| 100 std::string compressed; | |
| 101 storage_.ReadFile(compressed, uuid); | |
| 102 zlib_.Uncompress(content, compressed); | |
| 103 break; | |
| 104 } | |
| 105 | |
| 106 default: | |
| 107 throw OrthancException(ErrorCode_NotImplemented); | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 HttpFileSender* CompressedFileStorageAccessor::ConstructHttpFileSender(const std::string& uuid) | |
| 112 { | |
| 113 switch (compressionType_) | |
| 114 { | |
| 115 case CompressionType_None: | |
| 116 { | |
| 117 FileStorageAccessor uncompressedAccessor(storage_); | |
| 118 return uncompressedAccessor.ConstructHttpFileSender(uuid); | |
| 119 } | |
| 120 | |
| 121 case CompressionType_Zlib: | |
| 122 { | |
| 123 std::string compressed; | |
| 124 storage_.ReadFile(compressed, uuid); | |
| 125 | |
| 126 std::auto_ptr<BufferHttpSender> sender(new BufferHttpSender); | |
| 127 zlib_.Uncompress(sender->GetBuffer(), compressed); | |
| 128 | |
| 129 return sender.release(); | |
| 130 } | |
| 131 | |
| 132 default: | |
| 133 throw OrthancException(ErrorCode_NotImplemented); | |
| 134 } | |
| 135 } | |
| 136 } |