Mercurial > hg > orthanc

annotate OrthancServer/ServerContext.cpp @ 267:2ccf556dc1ce Orthanc-0.3.1

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 29 Apr 2013 12:55:01 +0200
parents 6d9be2b470b4
children f6fdf5abe751
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #include "ServerContext.h"
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34
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35 #include "../Core/HttpServer/FilesystemHttpSender.h"
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36
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37 #include <glog/logging.h>
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38
227
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39
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40 /**
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41 * IMPORTANT: We make the assumption that the same instance of
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42 * FileStorage can be accessed from multiple threads. This seems OK
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43 * since the filesystem implements the required locking mechanisms,
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44 * but maybe a read-writer lock on the "FileStorage" could be
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45 * useful. Conversely, "ServerIndex" already implements mutex-based
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46 * locking.
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47 **/
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48
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49 namespace Orthanc
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50 {
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51 ServerContext::ServerContext(const boost::filesystem::path& path) :
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52 storage_(path.string()),
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53 index_(*this, path.string()),
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54 accessor_(storage_)
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55 {
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56 }
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57
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58 void ServerContext::SetCompressionEnabled(bool enabled)
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59 {
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60 if (enabled)
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61 LOG(WARNING) << "Disk compression is enabled";
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62 else
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63 LOG(WARNING) << "Disk compression is disabled";
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64
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65 compressionEnabled_ = enabled;
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66 }
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67
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68 void ServerContext::RemoveFile(const std::string& fileUuid)
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69 {
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70 storage_.Remove(fileUuid);
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71 }
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72
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73 StoreStatus ServerContext::Store(const char* dicomFile,
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74 size_t dicomSize,
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75 const DicomMap& dicomSummary,
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76 const Json::Value& dicomJson,
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77 const std::string& remoteAet)
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78 {
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79 if (compressionEnabled_)
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80 {
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81 accessor_.SetCompressionForNextOperations(CompressionType_Zlib);
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82 }
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83 else
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84 {
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85 accessor_.SetCompressionForNextOperations(CompressionType_None);
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86 }
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87
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88 FileInfo dicomInfo = accessor_.Write(dicomFile, dicomSize, FileContentType_Dicom);
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89 FileInfo jsonInfo = accessor_.Write(dicomJson.toStyledString(), FileContentType_Json);
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90
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91 ServerIndex::Attachments attachments;
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92 attachments.push_back(dicomInfo);
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93 attachments.push_back(jsonInfo);
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94
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95 StoreStatus status = index_.Store(dicomSummary, attachments, remoteAet);
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96
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97 if (status != StoreStatus_Success)
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98 {
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99 storage_.Remove(dicomInfo.GetUuid());
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100 storage_.Remove(jsonInfo.GetUuid());
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101 }
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102
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103 switch (status)
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104 {
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105 case StoreStatus_Success:
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106 LOG(INFO) << "New instance stored";
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107 break;
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108
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109 case StoreStatus_AlreadyStored:
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110 LOG(INFO) << "Already stored";
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111 break;
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112
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113 case StoreStatus_Failure:
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114 LOG(ERROR) << "Store failure";
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115 break;
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116 }
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117
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118 return status;
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119 }
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120
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121
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122 void ServerContext::AnswerFile(RestApiOutput& output,
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123 const std::string& instancePublicId,
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124 FileContentType content)
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125 {
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126 FileInfo attachment;
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127 if (!index_.LookupAttachment(attachment, instancePublicId, content))
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128 {
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129 throw OrthancException(ErrorCode_InternalError);
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130 }
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131
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132 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
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133 std::auto_ptr<HttpFileSender> sender(accessor_.ConstructHttpFileSender(attachment.GetUuid()));
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134 output.AnswerFile(*sender);
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135 }
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136
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137
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138 void ServerContext::ReadJson(Json::Value& result,
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139 const std::string& instancePublicId)
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140 {
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141 std::string s;
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142 ReadFile(s, instancePublicId, FileContentType_Json);
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143
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144 Json::Reader reader;
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145 if (!reader.parse(s, result))
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146 {
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147 throw OrthancException("Corrupted JSON file");
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148 }
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149 }
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150
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151
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152 void ServerContext::ReadFile(std::string& result,
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153 const std::string& instancePublicId,
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154 FileContentType content)
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155 {
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156 FileInfo attachment;
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157 if (!index_.LookupAttachment(attachment, instancePublicId, content))
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158 {
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159 throw OrthancException(ErrorCode_InternalError);
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160 }
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161
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162 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType());
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163 accessor_.Read(result, attachment.GetUuid());
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164 }
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165 }