Mercurial > hg > orthanc
annotate OrthancFramework/Sources/FileStorage/StorageCache.cpp @ 4792:434843934307 storage-cache
Added a StorageCache in the StorageAccessor
author | Alain Mazy <am@osimis.io> |
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date | Thu, 30 Sep 2021 12:14:19 +0200 |
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children | 6c276fac0cc0 |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
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20 **/ |
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21 |
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22 |
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23 #include "../PrecompiledHeaders.h" |
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24 #include "StorageCache.h" |
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25 |
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26 #include "../Compatibility.h" |
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27 #include "../OrthancException.h" |
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28 |
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29 |
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30 |
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31 namespace Orthanc |
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32 { |
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33 bool IsAcceptedContentType(FileContentType contentType) |
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34 { |
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35 return contentType == FileContentType_Dicom || |
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36 contentType == FileContentType_DicomUntilPixelData || |
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37 contentType == FileContentType_DicomAsJson; |
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38 } |
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39 |
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40 const char* ToString(FileContentType contentType) |
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41 { |
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42 switch (contentType) |
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43 { |
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44 case FileContentType_Dicom: |
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45 return "dicom"; |
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46 case FileContentType_DicomUntilPixelData: |
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47 return "dicom-header"; |
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48 case FileContentType_DicomAsJson: |
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49 return "dicom-json"; |
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50 default: |
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51 throw OrthancException(ErrorCode_InternalError, |
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52 "ContentType not supported in StorageCache"); |
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53 } |
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54 } |
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55 |
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56 void GetCacheKey(std::string& key, const std::string& uuid, FileContentType contentType) |
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57 { |
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58 key = uuid + ":" + std::string(ToString(contentType)); |
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59 } |
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60 |
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61 void StorageCache::SetMaximumSize(size_t size) |
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62 { |
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63 cache_.SetMaximumSize(size); |
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64 } |
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65 |
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66 void StorageCache::Add(const std::string& uuid, |
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67 FileContentType contentType, |
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68 const std::string& value) |
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69 { |
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70 if (!IsAcceptedContentType(contentType)) |
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71 { |
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72 return; |
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73 } |
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74 |
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75 std::string key; |
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76 GetCacheKey(key, uuid, contentType); |
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77 cache_.Add(key, value); |
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78 } |
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79 |
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80 void StorageCache::Add(const std::string& uuid, |
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81 FileContentType contentType, |
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82 const void* buffer, |
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83 size_t size) |
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84 { |
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85 if (!IsAcceptedContentType(contentType)) |
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86 { |
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87 return; |
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88 } |
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89 |
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90 std::string key; |
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91 GetCacheKey(key, uuid, contentType); |
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92 cache_.Add(key, buffer, size); |
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93 } |
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94 |
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95 void StorageCache::Invalidate(const std::string& uuid, FileContentType contentType) |
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96 { |
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97 std::string key; |
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98 GetCacheKey(key, uuid, contentType); |
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99 cache_.Invalidate(key); |
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100 } |
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101 |
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102 bool StorageCache::Fetch(std::string& value, |
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103 const std::string& uuid, |
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104 FileContentType contentType) |
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105 { |
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106 if (!IsAcceptedContentType(contentType)) |
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107 { |
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108 return false; |
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109 } |
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110 |
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111 std::string key; |
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112 GetCacheKey(key, uuid, contentType); |
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113 |
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114 return cache_.Fetch(value, key); |
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115 } |
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116 |
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117 |
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118 } |