Mercurial > hg > orthanc
annotate Core/FileStorage/CompressedFileStorageAccessor.cpp @ 776:be87dd517416
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 30 Apr 2014 17:53:01 +0200 |
| parents | 01d8611c4a60 |
| children | a811bdf8b8eb |
| 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 | |
| 33 #include "CompressedFileStorageAccessor.h" | |
| 34 | |
| 35 #include "../OrthancException.h" | |
| 36 #include "FileStorageAccessor.h" | |
| 37 #include "../HttpServer/BufferHttpSender.h" | |
| 38 | |
| 39 namespace Orthanc | |
| 40 { | |
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41 FileInfo CompressedFileStorageAccessor::WriteInternal(const void* data, |
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42 size_t size, |
| 233 | 43 FileContentType type) |
| 221 | 44 { |
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45 std::string md5; |
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46 |
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47 if (storeMD5_) |
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48 { |
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49 Toolbox::ComputeMD5(md5, data, size); |
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50 } |
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51 |
| 221 | 52 switch (compressionType_) |
| 53 { | |
| 54 case CompressionType_None: | |
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55 { |
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56 std::string uuid = storage_.Create(data, size); |
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57 return FileInfo(uuid, type, size, md5); |
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58 } |
| 221 | 59 |
| 60 case CompressionType_Zlib: | |
| 61 { | |
| 62 std::string compressed; | |
| 63 zlib_.Compress(compressed, data, size); | |
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64 |
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65 std::string compressedMD5; |
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66 |
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67 if (storeMD5_) |
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68 { |
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69 Toolbox::ComputeMD5(compressedMD5, compressed); |
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70 } |
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71 |
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72 std::string uuid = storage_.Create(compressed); |
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73 return FileInfo(uuid, type, size, md5, |
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74 CompressionType_Zlib, compressed.size(), compressedMD5); |
| 221 | 75 } |
| 76 | |
| 77 default: | |
| 78 throw OrthancException(ErrorCode_NotImplemented); | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 CompressedFileStorageAccessor::CompressedFileStorageAccessor(FileStorage& storage) : | |
| 83 storage_(storage) | |
| 84 { | |
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85 compressionType_ = CompressionType_None; |
| 221 | 86 } |
| 87 | |
| 88 void CompressedFileStorageAccessor::Read(std::string& content, | |
| 89 const std::string& uuid) | |
| 90 { | |
| 91 switch (compressionType_) | |
| 92 { | |
| 93 case CompressionType_None: | |
| 94 storage_.ReadFile(content, uuid); | |
| 95 break; | |
| 96 | |
| 97 case CompressionType_Zlib: | |
| 98 { | |
| 99 std::string compressed; | |
| 100 storage_.ReadFile(compressed, uuid); | |
| 101 zlib_.Uncompress(content, compressed); | |
| 102 break; | |
| 103 } | |
| 104 | |
| 105 default: | |
| 106 throw OrthancException(ErrorCode_NotImplemented); | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 HttpFileSender* CompressedFileStorageAccessor::ConstructHttpFileSender(const std::string& uuid) | |
| 111 { | |
| 112 switch (compressionType_) | |
| 113 { | |
| 114 case CompressionType_None: | |
| 115 { | |
| 116 FileStorageAccessor uncompressedAccessor(storage_); | |
| 117 return uncompressedAccessor.ConstructHttpFileSender(uuid); | |
| 118 } | |
| 119 | |
| 120 case CompressionType_Zlib: | |
| 121 { | |
| 122 std::string compressed; | |
| 123 storage_.ReadFile(compressed, uuid); | |
| 124 | |
| 125 std::auto_ptr<BufferHttpSender> sender(new BufferHttpSender); | |
| 126 zlib_.Uncompress(sender->GetBuffer(), compressed); | |
| 127 | |
| 128 return sender.release(); | |
| 129 } | |
| 130 | |
| 131 default: | |
| 132 throw OrthancException(ErrorCode_NotImplemented); | |
| 133 } | |
| 134 } | |
| 135 } |