Mercurial > hg > orthanc

annotate OrthancFramework/Sources/FileStorage/StorageAccessor.cpp @ 4824:6e0305c9ed41 storage-cache

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closing branch storage-cache
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 25 Nov 2021 13:26:02 +0100
parents 434843934307
children 7053502fbf97
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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 "StorageAccessor.h"
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25 #include "StorageCache.h"
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26
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27 #include "../Logging.h"
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28 #include "../StringMemoryBuffer.h"
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29 #include "../Compatibility.h"
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30 #include "../Compression/ZlibCompressor.h"
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31 #include "../MetricsRegistry.h"
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32 #include "../OrthancException.h"
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33 #include "../Toolbox.h"
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34
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35 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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36 # include "../HttpServer/HttpStreamTranscoder.h"
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37 #endif
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38
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40 static const std::string METRICS_CREATE = "orthanc_storage_create_duration_ms";
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41 static const std::string METRICS_READ = "orthanc_storage_read_duration_ms";
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42 static const std::string METRICS_REMOVE = "orthanc_storage_remove_duration_ms";
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44
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45 namespace Orthanc
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46 {
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47 class StorageAccessor::MetricsTimer : public boost::noncopyable
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48 {
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49 private:
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50 std::unique_ptr<MetricsRegistry::Timer> timer_;
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52 public:
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53 MetricsTimer(StorageAccessor& that,
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54 const std::string& name)
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55 {
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56 if (that.metrics_ != NULL)
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57 {
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58 timer_.reset(new MetricsRegistry::Timer(*that.metrics_, name));
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59 }
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60 }
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61 };
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62
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63
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64 StorageAccessor::StorageAccessor(IStorageArea &area, StorageCache& cache) :
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65 area_(area),
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66 cache_(cache),
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67 metrics_(NULL)
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68 {
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69 }
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70
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71 StorageAccessor::StorageAccessor(IStorageArea &area,
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72 StorageCache& cache,
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73 MetricsRegistry &metrics) :
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74 area_(area),
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75 cache_(cache),
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76 metrics_(&metrics)
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77 {
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78 }
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79
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80
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81 FileInfo StorageAccessor::Write(const void* data,
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82 size_t size,
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83 FileContentType type,
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84 CompressionType compression,
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85 bool storeMd5)
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86 {
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87 std::string uuid = Toolbox::GenerateUuid();
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88
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89 std::string md5;
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90
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91 if (storeMd5)
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92 {
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93 Toolbox::ComputeMD5(md5, data, size);
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94 }
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95
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96 switch (compression)
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97 {
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98 case CompressionType_None:
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99 {
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100 MetricsTimer timer(*this, METRICS_CREATE);
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101
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102 area_.Create(uuid, data, size, type);
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103 cache_.Add(uuid, type, data, size);
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104
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105 return FileInfo(uuid, type, size, md5);
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106 }
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107
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108 case CompressionType_ZlibWithSize:
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109 {
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110 ZlibCompressor zlib;
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111
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112 std::string compressed;
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113 zlib.Compress(compressed, data, size);
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114
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115 std::string compressedMD5;
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116
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117 if (storeMd5)
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118 {
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119 Toolbox::ComputeMD5(compressedMD5, compressed);
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120 }
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121
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122 {
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123 MetricsTimer timer(*this, METRICS_CREATE);
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124
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125 if (compressed.size() > 0)
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126 {
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127 area_.Create(uuid, &compressed[0], compressed.size(), type);
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128 }
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129 else
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130 {
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131 area_.Create(uuid, NULL, 0, type);
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132 }
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133 }
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134
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135 cache_.Add(uuid, type, data, size);
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136 return FileInfo(uuid, type, size, md5,
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137 CompressionType_ZlibWithSize, compressed.size(), compressedMD5);
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138 }
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139
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140 default:
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141 throw OrthancException(ErrorCode_NotImplemented);
221
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142 }
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143 }
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144
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145 FileInfo StorageAccessor::Write(const std::string &data,
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146 FileContentType type,
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147 CompressionType compression,
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148 bool storeMd5)
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149 {
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150 return Write((data.size() == 0 ? NULL : data.c_str()),
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151 data.size(), type, compression, storeMd5);
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152 }
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153
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154
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155 void StorageAccessor::Read(std::string& content,
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156 const FileInfo& info)
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157 {
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158 if (cache_.Fetch(content, info.GetUuid(), info.GetContentType()))
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159 {
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160 LOG(INFO) << "Read attachment \"" << info.GetUuid() << "\" "
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161 << "content type from cache";
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162 return;
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163 }
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164
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165 switch (info.GetCompressionType())
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166 {
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167 case CompressionType_None:
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168 {
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169 MetricsTimer timer(*this, METRICS_READ);
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170
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171 std::unique_ptr<IMemoryBuffer> buffer(area_.Read(info.GetUuid(), info.GetContentType()));
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172 buffer->MoveToString(content);
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173
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174 cache_.Add(info.GetUuid(), info.GetContentType(), content);
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175 break;
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176 }
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177
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178 case CompressionType_ZlibWithSize:
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179 {
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180 ZlibCompressor zlib;
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181
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182 std::unique_ptr<IMemoryBuffer> compressed;
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183
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184 {
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185 MetricsTimer timer(*this, METRICS_READ);
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186 compressed.reset(area_.Read(info.GetUuid(), info.GetContentType()));
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187 }
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188
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189 zlib.Uncompress(content, compressed->GetData(), compressed->GetSize());
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190
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191 cache_.Add(info.GetUuid(), info.GetContentType(), content);
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192 break;
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193 }
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194
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195 default:
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196 {
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197 throw OrthancException(ErrorCode_NotImplemented);
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198 }
221
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199 }
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200
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201 // TODO Check the validity of the uncompressed MD5?
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202 }
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203
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204
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205 void StorageAccessor::ReadRaw(std::string& content,
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206 const FileInfo& info)
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207 {
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208 MetricsTimer timer(*this, METRICS_READ);
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209
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210 std::unique_ptr<IMemoryBuffer> buffer(area_.Read(info.GetUuid(), info.GetContentType()));
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211 buffer->MoveToString(content);
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212 }
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213
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214
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215 void StorageAccessor::Remove(const std::string& fileUuid,
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216 FileContentType type)
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diff changeset
217 {
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diff changeset
218 MetricsTimer timer(*this, METRICS_REMOVE);
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diff changeset
219 area_.Remove(fileUuid, type);
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220
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221 cache_.Invalidate(fileUuid, type);
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222
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diff changeset
223 // in ReadStartRange, we might have cached only the start of the file -> try to remove it
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diff changeset
224 if (type == FileContentType_Dicom)
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diff changeset
225 {
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diff changeset
226 cache_.Invalidate(fileUuid, FileContentType_DicomUntilPixelData);
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227 }
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228 }
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229
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230 void StorageAccessor::Remove(const FileInfo &info)
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231 {
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232 Remove(info.GetUuid(), info.GetContentType());
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233 }
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234
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235 IMemoryBuffer* StorageAccessor::ReadStartRange(const std::string& fileUuid,
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diff changeset
236 FileContentType contentType,
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diff changeset
237 uint64_t end /* exclusive */,
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diff changeset
238 FileContentType startFileContentType)
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diff changeset
239 {
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diff changeset
240 std::string content;
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diff changeset
241 if (cache_.Fetch(content, fileUuid, contentType))
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diff changeset
242 {
434843934307 Added a StorageCache in the StorageAccessor
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diff changeset
243 LOG(INFO) << "Read attachment \"" << fileUuid << "\" "
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diff changeset
244 << "(range from " << 0 << " to " << end << ") from cache";
434843934307 Added a StorageCache in the StorageAccessor
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diff changeset
245
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diff changeset
246 return StringMemoryBuffer::CreateFromCopy(content, 0, end);
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247 }
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diff changeset
248
434843934307 Added a StorageCache in the StorageAccessor
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diff changeset
249 if (cache_.Fetch(content, fileUuid, startFileContentType))
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diff changeset
250 {
434843934307 Added a StorageCache in the StorageAccessor
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diff changeset
251 LOG(INFO) << "Read attachment \"" << fileUuid << "\" "
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252 << "(range from " << 0 << " to " << end << ") from cache";
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diff changeset
253
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diff changeset
254 assert(content.size() == end);
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255 return StringMemoryBuffer::CreateFromCopy(content);
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256 }
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257
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258 std::unique_ptr<IMemoryBuffer> buffer(area_.ReadRange(fileUuid, contentType, 0, end));
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259
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260 // we've read only the first part of the file -> add an entry in the cache
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261 // note the uuid is still the uuid of the full file but the type is the type of the start of the file !
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262 assert(buffer->GetSize() == end);
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263 cache_.Add(fileUuid, startFileContentType, buffer->GetData(), buffer->GetSize());
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264 return buffer.release();
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265 }
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266
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267
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268 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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269 void StorageAccessor::SetupSender(BufferHttpSender& sender,
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270 const FileInfo& info,
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271 const std::string& mime)
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272 {
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273 if (cache_.Fetch(sender.GetBuffer(), info.GetUuid(), info.GetContentType()))
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274 {
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275 LOG(INFO) << "Read attachment \"" << info.GetUuid() << "\" "
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276 << "content type from cache";
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277 }
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278 else
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279 {
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280 MetricsTimer timer(*this, METRICS_READ);
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281 std::unique_ptr<IMemoryBuffer> buffer(area_.Read(info.GetUuid(), info.GetContentType()));
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282 buffer->MoveToString(sender.GetBuffer());
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283
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284 cache_.Add(info.GetUuid(), info.GetContentType(), sender.GetBuffer());
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285 }
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286
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287 sender.SetContentType(mime);
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288
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289 const char* extension;
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290 switch (info.GetContentType())
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291 {
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292 case FileContentType_Dicom:
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293 case FileContentType_DicomUntilPixelData:
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294 extension = ".dcm";
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295 break;
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296
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297 case FileContentType_DicomAsJson:
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298 extension = ".json";
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299 break;
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300
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301 default:
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302 // Non-standard content type
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303 extension = "";
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304 }
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305
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306 sender.SetContentFilename(info.GetUuid() + std::string(extension));
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307 }
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308 #endif
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309
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310
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311 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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312 void StorageAccessor::AnswerFile(HttpOutput& output,
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313 const FileInfo& info,
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314 MimeType mime)
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315 {
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316 AnswerFile(output, info, EnumerationToString(mime));
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317 }
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318 #endif
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319
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320
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321 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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322 void StorageAccessor::AnswerFile(HttpOutput& output,
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323 const FileInfo& info,
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324 const std::string& mime)
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325 {
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326 BufferHttpSender sender;
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327 SetupSender(sender, info, mime);
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328
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329 HttpStreamTranscoder transcoder(sender, info.GetCompressionType());
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330 output.Answer(transcoder);
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331 }
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332 #endif
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333
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334
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335 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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336 void StorageAccessor::AnswerFile(RestApiOutput& output,
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337 const FileInfo& info,
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338 MimeType mime)
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339 {
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340 AnswerFile(output, info, EnumerationToString(mime));
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341 }
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342 #endif
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343
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344
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345 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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346 void StorageAccessor::AnswerFile(RestApiOutput& output,
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347 const FileInfo& info,
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348 const std::string& mime)
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349 {
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350 BufferHttpSender sender;
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351 SetupSender(sender, info, mime);
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352
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353 HttpStreamTranscoder transcoder(sender, info.GetCompressionType());
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354 output.AnswerStream(transcoder);
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355 }
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356 #endif
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357 }