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annotate OrthancFramework/Sources/FileStorage/StorageAccessor.cpp @ 5080:d7274e43ea7c attach-custom-data

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allow plugins to store a customData in the Attachments table to e.g. store custom paths without requiring an external DB
author Alain Mazy <am@osimis.io>
date Thu, 08 Sep 2022 17:42:08 +0200
parents 5c997c72603c
children 8279eaab0d1d
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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) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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23
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24 #include "../PrecompiledHeaders.h"
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25 #include "StorageAccessor.h"
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26 #include "StorageCache.h"
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27
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28 #include "../Logging.h"
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29 #include "../StringMemoryBuffer.h"
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30 #include "../Compatibility.h"
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31 #include "../Compression/ZlibCompressor.h"
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32 #include "../MetricsRegistry.h"
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33 #include "../OrthancException.h"
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34 #include "../Toolbox.h"
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35
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36 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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37 # include "../HttpServer/HttpStreamTranscoder.h"
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38 #endif
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39
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41 static const std::string METRICS_CREATE = "orthanc_storage_create_duration_ms";
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42 static const std::string METRICS_READ = "orthanc_storage_read_duration_ms";
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43 static const std::string METRICS_REMOVE = "orthanc_storage_remove_duration_ms";
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45
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46 namespace Orthanc
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47 {
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48 class StorageAccessor::MetricsTimer : public boost::noncopyable
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49 {
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50 private:
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51 std::unique_ptr<MetricsRegistry::Timer> timer_;
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53 public:
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54 MetricsTimer(StorageAccessor& that,
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55 const std::string& name)
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56 {
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57 if (that.metrics_ != NULL)
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58 {
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59 timer_.reset(new MetricsRegistry::Timer(*that.metrics_, name));
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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
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65 StorageAccessor::StorageAccessor(IStorageArea &area, StorageCache* cache) :
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66 area_(area),
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67 cache_(cache),
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68 metrics_(NULL)
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69 {
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70 }
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71
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72 StorageAccessor::StorageAccessor(IStorageArea &area,
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73 StorageCache* cache,
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74 MetricsRegistry &metrics) :
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75 area_(area),
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76 cache_(cache),
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77 metrics_(&metrics)
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78 {
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79 }
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80
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81
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82 FileInfo StorageAccessor::WriteInstance(std::string& customData,
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83 const DicomInstanceToStore& instance,
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84 const void* data,
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85 size_t size,
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86 FileContentType type,
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87 CompressionType compression,
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88 bool storeMd5,
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89 const std::string& uuid)
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90 {
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91 std::string md5;
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92
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93 if (storeMd5)
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94 {
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95 Toolbox::ComputeMD5(md5, data, size);
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96 }
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97
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98 switch (compression)
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99 {
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100 case CompressionType_None:
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101 {
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102 MetricsTimer timer(*this, METRICS_CREATE);
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103
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104 area_.CreateInstance(customData, instance, uuid, data, size, type, false);
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105
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106 if (cache_ != NULL)
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107 {
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108 cache_->Add(uuid, type, data, size);
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109 }
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110
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111 return FileInfo(uuid, type, size, md5, customData);
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112 }
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113
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114 case CompressionType_ZlibWithSize:
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115 {
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116 ZlibCompressor zlib;
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117
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118 std::string compressed;
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119 zlib.Compress(compressed, data, size);
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120
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121 std::string compressedMD5;
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122
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123 if (storeMd5)
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124 {
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125 Toolbox::ComputeMD5(compressedMD5, compressed);
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126 }
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127
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128 {
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129 MetricsTimer timer(*this, METRICS_CREATE);
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130
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131 if (compressed.size() > 0)
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132 {
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133 area_.CreateInstance(customData, instance, uuid, &compressed[0], compressed.size(), type, true);
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134 }
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135 else
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136 {
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137 area_.CreateInstance(customData, instance, uuid, NULL, 0, type, true);
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138 }
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139 }
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140
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141 if (cache_ != NULL)
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142 {
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143 cache_->Add(uuid, type, data, size); // always add uncompressed data to cache
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144 }
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145
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146 return FileInfo(uuid, type, size, md5,
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147 CompressionType_ZlibWithSize, compressed.size(), compressedMD5, customData);
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148 }
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149
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150 default:
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151 throw OrthancException(ErrorCode_NotImplemented);
221
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152 }
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153 }
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154
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155 FileInfo StorageAccessor::WriteAttachment(std::string& customData,
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156 const std::string& resourceId,
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157 ResourceType resourceType,
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158 const void* data,
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159 size_t size,
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160 FileContentType type,
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161 CompressionType compression,
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162 bool storeMd5,
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163 const std::string& uuid)
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164 {
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165 std::string md5;
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166
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167 if (storeMd5)
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168 {
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169 Toolbox::ComputeMD5(md5, data, size);
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170 }
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171
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172 switch (compression)
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173 {
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174 case CompressionType_None:
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175 {
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176 MetricsTimer timer(*this, METRICS_CREATE);
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177
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178 area_.CreateAttachment(customData, resourceId, resourceType, uuid, data, size, type, false);
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179
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180 if (cache_ != NULL)
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181 {
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182 cache_->Add(uuid, type, data, size);
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183 }
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184
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185 return FileInfo(uuid, type, size, md5, customData);
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186 }
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187
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188 case CompressionType_ZlibWithSize:
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189 {
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190 ZlibCompressor zlib;
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191
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192 std::string compressed;
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193 zlib.Compress(compressed, data, size);
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194
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195 std::string compressedMD5;
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196
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197 if (storeMd5)
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198 {
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199 Toolbox::ComputeMD5(compressedMD5, compressed);
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200 }
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201
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202 {
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203 MetricsTimer timer(*this, METRICS_CREATE);
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204
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205 if (compressed.size() > 0)
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206 {
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207 area_.CreateAttachment(customData, resourceId, resourceType, uuid, &compressed[0], compressed.size(), type, true);
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208 }
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209 else
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210 {
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diff changeset
211 area_.CreateAttachment(customData, resourceId, resourceType, uuid, NULL, 0, type, true);
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212 }
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213 }
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214
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215 if (cache_ != NULL)
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216 {
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217 cache_->Add(uuid, type, data, size); // always add uncompressed data to cache
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218 }
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219
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220 return FileInfo(uuid, type, size, md5,
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221 CompressionType_ZlibWithSize, compressed.size(), compressedMD5, customData);
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222 }
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223
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224 default:
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225 throw OrthancException(ErrorCode_NotImplemented);
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226 }
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227 }
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228
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229
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230 void StorageAccessor::Read(std::string& content,
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231 const FileInfo& info)
221
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232 {
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233 if (cache_ == NULL ||
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234 !cache_->Fetch(content, info.GetUuid(), info.GetContentType()))
221
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235 {
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236 switch (info.GetCompressionType())
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237 {
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238 case CompressionType_None:
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diff changeset
239 {
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240 MetricsTimer timer(*this, METRICS_READ);
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241 std::unique_ptr<IMemoryBuffer> buffer(area_.Read(info.GetUuid(), info.GetContentType(), info.GetCustomData()));
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242 buffer->MoveToString(content);
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243
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244 break;
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245 }
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246
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247 case CompressionType_ZlibWithSize:
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248 {
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249 ZlibCompressor zlib;
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250
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251 std::unique_ptr<IMemoryBuffer> compressed;
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252
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253 {
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254 MetricsTimer timer(*this, METRICS_READ);
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255 compressed.reset(area_.Read(info.GetUuid(), info.GetContentType(), info.GetCustomData()));
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256 }
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257
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258 zlib.Uncompress(content, compressed->GetData(), compressed->GetSize());
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259
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260 break;
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261 }
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262
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263 default:
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264 {
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265 throw OrthancException(ErrorCode_NotImplemented);
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266 }
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267 }
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268
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269 // always store the uncompressed data in cache
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270 if (cache_ != NULL)
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271 {
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272 cache_->Add(info.GetUuid(), info.GetContentType(), content);
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273 }
221
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parents:
diff changeset
274 }
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275
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276 // TODO Check the validity of the uncompressed MD5?
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277 }
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278
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279
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280 void StorageAccessor::ReadRaw(std::string& content,
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281 const FileInfo& info)
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282 {
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283 if (cache_ == NULL || !cache_->Fetch(content, info.GetUuid(), info.GetContentType()))
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284 {
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285 MetricsTimer timer(*this, METRICS_READ);
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286 std::unique_ptr<IMemoryBuffer> buffer(area_.Read(info.GetUuid(), info.GetContentType(), info.GetCustomData()));
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287 buffer->MoveToString(content);
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288 }
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289 }
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290
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291
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292 void StorageAccessor::Remove(const std::string& fileUuid,
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293 FileContentType type,
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diff changeset
294 const std::string& customData)
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295 {
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diff changeset
296 if (cache_ != NULL)
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diff changeset
297 {
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298 cache_->Invalidate(fileUuid, type);
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299 }
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300
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diff changeset
301 {
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diff changeset
302 MetricsTimer timer(*this, METRICS_REMOVE);
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diff changeset
303 area_.Remove(fileUuid, type, customData);
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diff changeset
304 }
1750
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305 }
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diff changeset
306
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diff changeset
307
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diff changeset
308 void StorageAccessor::Remove(const FileInfo &info)
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diff changeset
309 {
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diff changeset
310 Remove(info.GetUuid(), info.GetContentType(), info.GetCustomData());
4297
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diff changeset
311 }
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diff changeset
312
4900
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diff changeset
313
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diff changeset
314 void StorageAccessor::ReadStartRange(std::string& target,
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diff changeset
315 const std::string& fileUuid,
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diff changeset
316 FileContentType contentType,
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diff changeset
317 uint64_t end /* exclusive */,
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diff changeset
318 const std::string& customData)
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diff changeset
319 {
5048
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diff changeset
320 if (cache_ == NULL || !cache_->FetchStartRange(target, fileUuid, contentType, end))
4792
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diff changeset
321 {
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diff changeset
322 MetricsTimer timer(*this, METRICS_READ);
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diff changeset
323 std::unique_ptr<IMemoryBuffer> buffer(area_.ReadRange(fileUuid, contentType, 0, end, customData));
4900
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diff changeset
324 assert(buffer->GetSize() == end);
ea5f1c6ed07e fix cache of storage area
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diff changeset
325 buffer->MoveToString(target);
4906
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diff changeset
326
5048
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diff changeset
327 if (cache_ != NULL)
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diff changeset
328 {
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diff changeset
329 cache_->AddStartRange(fileUuid, contentType, target);
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diff changeset
330 }
4792
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diff changeset
331 }
434843934307 Added a StorageCache in the StorageAccessor
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diff changeset
332 }
434843934307 Added a StorageCache in the StorageAccessor
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diff changeset
333
434843934307 Added a StorageCache in the StorageAccessor
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diff changeset
334
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diff changeset
335 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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diff changeset
336 void StorageAccessor::SetupSender(BufferHttpSender& sender,
1772
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diff changeset
337 const FileInfo& info,
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diff changeset
338 const std::string& mime)
1549
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diff changeset
339 {
5059
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diff changeset
340 Read(sender.GetBuffer(), info);
3175
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diff changeset
341
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diff changeset
342 sender.SetContentType(mime);
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diff changeset
343
53e045b5a8ec MIME content type can be associated to custom attachments (cf. "UserContentType")
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diff changeset
344 const char* extension;
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diff changeset
345 switch (info.GetContentType())
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diff changeset
346 {
53e045b5a8ec MIME content type can be associated to custom attachments (cf. "UserContentType")
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diff changeset
347 case FileContentType_Dicom:
4512
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diff changeset
348 case FileContentType_DicomUntilPixelData:
1772
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diff changeset
349 extension = ".dcm";
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diff changeset
350 break;
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diff changeset
351
53e045b5a8ec MIME content type can be associated to custom attachments (cf. "UserContentType")
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diff changeset
352 case FileContentType_DicomAsJson:
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diff changeset
353 extension = ".json";
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diff changeset
354 break;
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diff changeset
355
53e045b5a8ec MIME content type can be associated to custom attachments (cf. "UserContentType")
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diff changeset
356 default:
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diff changeset
357 // Non-standard content type
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diff changeset
358 extension = "";
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diff changeset
359 }
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parents: 1750
diff changeset
360
53e045b5a8ec MIME content type can be associated to custom attachments (cf. "UserContentType")
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
361 sender.SetContentFilename(info.GetUuid() + std::string(extension));
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diff changeset
362 }
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diff changeset
363 #endif
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diff changeset
364
e5e975e9b738 refactoring and simplification of StorageAccessor
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diff changeset
365
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diff changeset
366 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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diff changeset
367 void StorageAccessor::AnswerFile(HttpOutput& output,
1772
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diff changeset
368 const FileInfo& info,
4297
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diff changeset
369 MimeType mime)
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370 {
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371 AnswerFile(output, info, EnumerationToString(mime));
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372 }
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373 #endif
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374
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375
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376 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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377 void StorageAccessor::AnswerFile(HttpOutput& output,
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378 const FileInfo& info,
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379 const std::string& mime)
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380 {
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381 BufferHttpSender sender;
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382 SetupSender(sender, info, mime);
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383
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384 HttpStreamTranscoder transcoder(sender, CompressionType_None); // since 1.11.2, the storage accessor only returns uncompressed buffers
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385 output.Answer(transcoder);
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386 }
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387 #endif
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388
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389
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390 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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391 void StorageAccessor::AnswerFile(RestApiOutput& output,
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392 const FileInfo& info,
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393 MimeType mime)
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394 {
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395 AnswerFile(output, info, EnumerationToString(mime));
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396 }
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397 #endif
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398
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399
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400 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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401 void StorageAccessor::AnswerFile(RestApiOutput& output,
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402 const FileInfo& info,
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403 const std::string& mime)
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404 {
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405 BufferHttpSender sender;
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406 SetupSender(sender, info, mime);
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407
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408 HttpStreamTranscoder transcoder(sender, CompressionType_None); // since 1.11.2, the storage accessor only returns uncompressed buffers
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409 output.AnswerStream(transcoder);
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410 }
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411 #endif
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412
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413 // bool StorageAccessor::HandlesCustomData()
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414 // {
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415 // return area_.HandlesCustomData();
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416 // }
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417
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418 // void StorageAccessor::GetCustomData(std::string& customData,
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419 // const std::string& uuid,
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420 // const DicomInstanceToStore* instance,
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421 // const void* content,
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422 // size_t size,
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423 // FileContentType type,
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424 // bool compression)
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425 // {
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426 // area_.GetCustomData(customData, uuid, instance, content, size, type, compression);
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427 // }
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428
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429 }