Mercurial > hg > orthanc
annotate Core/FileStorage/StorageAccessor.cpp @ 3816:09f091b6b569
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author | Alain Mazy <alain@mazy.be> |
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date | Wed, 08 Apr 2020 14:49:54 +0200 |
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221 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
1900 | 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) 2017-2020 Osimis S.A., Belgium |
221 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU General Public License as | |
9 * published by the Free Software Foundation, either version 3 of the | |
10 * License, or (at your option) any later version. | |
11 * | |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
23 * | |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
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34 #include "../PrecompiledHeaders.h" |
221 | 35 #include "StorageAccessor.h" |
36 | |
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37 #include "../Compatibility.h" |
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38 #include "../Compression/ZlibCompressor.h" |
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39 #include "../MetricsRegistry.h" |
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40 #include "../OrthancException.h" |
2142 | 41 #include "../Toolbox.h" |
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42 |
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43 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1 |
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44 # include "../HttpServer/HttpStreamTranscoder.h" |
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45 #endif |
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46 |
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47 |
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48 static const std::string METRICS_CREATE = "orthanc_storage_create_duration_ms"; |
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49 static const std::string METRICS_READ = "orthanc_storage_read_duration_ms"; |
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50 static const std::string METRICS_REMOVE = "orthanc_storage_remove_duration_ms"; |
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51 |
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52 |
221 | 53 namespace Orthanc |
54 { | |
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55 class StorageAccessor::MetricsTimer : public boost::noncopyable |
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56 { |
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57 private: |
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58 std::unique_ptr<MetricsRegistry::Timer> timer_; |
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59 |
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60 public: |
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61 MetricsTimer(StorageAccessor& that, |
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62 const std::string& name) |
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63 { |
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64 if (that.metrics_ != NULL) |
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65 { |
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66 timer_.reset(new MetricsRegistry::Timer(*that.metrics_, name)); |
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67 } |
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68 } |
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69 }; |
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70 |
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71 |
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72 FileInfo StorageAccessor::Write(const void* data, |
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73 size_t size, |
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74 FileContentType type, |
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75 CompressionType compression, |
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76 bool storeMd5) |
221 | 77 { |
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78 std::string uuid = Toolbox::GenerateUuid(); |
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79 |
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80 std::string md5; |
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81 |
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82 if (storeMd5) |
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83 { |
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84 Toolbox::ComputeMD5(md5, data, size); |
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85 } |
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86 |
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87 switch (compression) |
221 | 88 { |
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89 case CompressionType_None: |
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90 { |
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91 MetricsTimer timer(*this, METRICS_CREATE); |
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92 |
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93 area_.Create(uuid, data, size, type); |
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94 return FileInfo(uuid, type, size, md5); |
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95 } |
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96 |
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97 case CompressionType_ZlibWithSize: |
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98 { |
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99 ZlibCompressor zlib; |
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100 |
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101 std::string compressed; |
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102 zlib.Compress(compressed, data, size); |
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103 |
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104 std::string compressedMD5; |
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105 |
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106 if (storeMd5) |
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107 { |
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108 Toolbox::ComputeMD5(compressedMD5, compressed); |
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109 } |
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110 |
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111 { |
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112 MetricsTimer timer(*this, METRICS_CREATE); |
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113 |
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114 if (compressed.size() > 0) |
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115 { |
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116 area_.Create(uuid, &compressed[0], compressed.size(), type); |
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117 } |
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118 else |
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119 { |
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120 area_.Create(uuid, NULL, 0, type); |
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121 } |
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122 } |
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123 |
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124 return FileInfo(uuid, type, size, md5, |
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125 CompressionType_ZlibWithSize, compressed.size(), compressedMD5); |
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126 } |
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127 |
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128 default: |
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129 throw OrthancException(ErrorCode_NotImplemented); |
221 | 130 } |
131 } | |
132 | |
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133 |
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134 void StorageAccessor::Read(std::string& content, |
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135 const FileInfo& info) |
221 | 136 { |
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137 switch (info.GetCompressionType()) |
221 | 138 { |
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139 case CompressionType_None: |
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140 { |
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141 MetricsTimer timer(*this, METRICS_READ); |
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142 area_.Read(content, info.GetUuid(), info.GetContentType()); |
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143 break; |
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144 } |
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145 |
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146 case CompressionType_ZlibWithSize: |
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147 { |
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148 ZlibCompressor zlib; |
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149 |
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150 std::string compressed; |
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151 |
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152 { |
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153 MetricsTimer timer(*this, METRICS_READ); |
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154 area_.Read(compressed, info.GetUuid(), info.GetContentType()); |
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155 } |
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156 |
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157 IBufferCompressor::Uncompress(content, zlib, compressed); |
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158 break; |
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159 } |
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160 |
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161 default: |
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162 { |
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163 throw OrthancException(ErrorCode_NotImplemented); |
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164 } |
221 | 165 } |
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166 |
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167 // TODO Check the validity of the uncompressed MD5? |
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168 } |
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169 |
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170 |
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171 void StorageAccessor::ReadRaw(std::string& content, |
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172 const FileInfo& info) |
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173 { |
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174 MetricsTimer timer(*this, METRICS_READ); |
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175 area_.Read(content, info.GetUuid(), info.GetContentType()); |
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176 } |
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177 |
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178 |
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179 void StorageAccessor::Remove(const std::string& fileUuid, |
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180 FileContentType type) |
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181 { |
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182 MetricsTimer timer(*this, METRICS_REMOVE); |
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183 area_.Remove(fileUuid, type); |
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184 } |
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185 |
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186 |
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187 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1 |
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188 void StorageAccessor::SetupSender(BufferHttpSender& sender, |
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189 const FileInfo& info, |
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190 const std::string& mime) |
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191 { |
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192 { |
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193 MetricsTimer timer(*this, METRICS_READ); |
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194 area_.Read(sender.GetBuffer(), info.GetUuid(), info.GetContentType()); |
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195 } |
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196 |
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197 sender.SetContentType(mime); |
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198 |
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199 const char* extension; |
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200 switch (info.GetContentType()) |
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201 { |
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202 case FileContentType_Dicom: |
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203 extension = ".dcm"; |
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204 break; |
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205 |
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206 case FileContentType_DicomAsJson: |
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207 extension = ".json"; |
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208 break; |
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209 |
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210 default: |
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211 // Non-standard content type |
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212 extension = ""; |
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213 } |
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214 |
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215 sender.SetContentFilename(info.GetUuid() + std::string(extension)); |
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216 } |
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217 #endif |
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218 |
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219 |
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220 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1 |
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221 void StorageAccessor::AnswerFile(HttpOutput& output, |
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222 const FileInfo& info, |
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223 const std::string& mime) |
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224 { |
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225 BufferHttpSender sender; |
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226 SetupSender(sender, info, mime); |
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227 |
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228 HttpStreamTranscoder transcoder(sender, info.GetCompressionType()); |
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229 output.Answer(transcoder); |
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230 } |
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231 #endif |
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232 |
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233 |
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234 #if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1 |
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235 void StorageAccessor::AnswerFile(RestApiOutput& output, |
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236 const FileInfo& info, |
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237 const std::string& mime) |
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238 { |
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239 BufferHttpSender sender; |
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240 SetupSender(sender, info, mime); |
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241 |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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242 HttpStreamTranscoder transcoder(sender, info.GetCompressionType()); |
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refactoring and simplification of StorageAccessor
Sebastien Jodogne <s.jodogne@gmail.com>
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243 output.AnswerStream(transcoder); |
221 | 244 } |
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Sebastien Jodogne <s.jodogne@gmail.com>
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245 #endif |
221 | 246 } |