Mercurial > hg > orthanc-databases
annotate Framework/Plugins/StorageBackend.cpp @ 226:a4918d57435c
DatabaseManager doesn't IDatabaseFactory anymore
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 02 Apr 2021 19:23:36 +0200 |
parents | dd6cfc250747 |
children | 675f8322eb7c |
rev | line source |
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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 |
193
3236894320d6
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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 Affero 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 * Affero 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 Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 |
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22 #include "StorageBackend.h" |
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23 |
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24 #if HAS_ORTHANC_EXCEPTION != 1 |
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25 # error HAS_ORTHANC_EXCEPTION must be set to 1 |
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26 #endif |
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27 |
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28 #include "../../Framework/Common/BinaryStringValue.h" |
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29 #include "../../Framework/Common/FileValue.h" |
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30 |
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31 #include <Compatibility.h> // For std::unique_ptr<> |
152 | 32 #include <OrthancException.h> |
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33 |
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34 #include <limits> |
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35 |
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36 |
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37 #define ORTHANC_PLUGINS_DATABASE_CATCH \ |
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38 catch (::Orthanc::OrthancException& e) \ |
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39 { \ |
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40 return static_cast<OrthancPluginErrorCode>(e.GetErrorCode()); \ |
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41 } \ |
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42 catch (::std::runtime_error& e) \ |
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43 { \ |
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44 std::string s = "Exception in storage area back-end: " + std::string(e.what()); \ |
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45 OrthancPluginLogError(context_, s.c_str()); \ |
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46 return OrthancPluginErrorCode_DatabasePlugin; \ |
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47 } \ |
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48 catch (...) \ |
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49 { \ |
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50 OrthancPluginLogError(context_, "Native exception"); \ |
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51 return OrthancPluginErrorCode_DatabasePlugin; \ |
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52 } |
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53 |
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54 |
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55 namespace OrthancDatabases |
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56 { |
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57 void StorageBackend::SetDatabase(IDatabase* database) |
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58 { |
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59 if (database == NULL) |
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60 { |
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61 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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62 } |
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63 else if (manager_.get() != NULL) |
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64 { |
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65 delete database; |
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66 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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67 } |
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68 else |
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69 { |
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70 manager_.reset(new DatabaseManager(database)); |
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71 } |
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72 } |
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73 |
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74 DatabaseManager& StorageBackend::GetManager() |
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75 { |
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76 if (manager_.get() == NULL) |
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77 { |
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78 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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79 } |
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80 else |
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81 { |
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82 return *manager_; |
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83 } |
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84 } |
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85 |
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86 |
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87 void StorageBackend::Create(DatabaseManager::Transaction& transaction, |
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88 const std::string& uuid, |
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89 const void* content, |
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90 size_t size, |
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91 OrthancPluginContentType type) |
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92 { |
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93 DatabaseManager::CachedStatement statement( |
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94 STATEMENT_FROM_HERE, GetManager(), |
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95 "INSERT INTO StorageArea VALUES (${uuid}, ${content}, ${type})"); |
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96 |
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97 statement.SetParameterType("uuid", ValueType_Utf8String); |
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98 statement.SetParameterType("content", ValueType_File); |
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99 statement.SetParameterType("type", ValueType_Integer64); |
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100 |
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101 Dictionary args; |
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102 args.SetUtf8Value("uuid", uuid); |
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103 args.SetFileValue("content", content, size); |
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104 args.SetIntegerValue("type", type); |
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105 |
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106 statement.Execute(args); |
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107 } |
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108 |
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109 |
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110 void StorageBackend::Read(StorageBackend::IFileContentVisitor& target, |
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111 DatabaseManager::Transaction& transaction, |
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112 const std::string& uuid, |
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113 OrthancPluginContentType type) |
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114 { |
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115 DatabaseManager::CachedStatement statement( |
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116 STATEMENT_FROM_HERE, GetManager(), |
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117 "SELECT content FROM StorageArea WHERE uuid=${uuid} AND type=${type}"); |
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118 |
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119 statement.SetParameterType("uuid", ValueType_Utf8String); |
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120 statement.SetParameterType("type", ValueType_Integer64); |
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121 |
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122 Dictionary args; |
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123 args.SetUtf8Value("uuid", uuid); |
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124 args.SetIntegerValue("type", type); |
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125 |
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126 statement.Execute(args); |
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127 |
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128 if (statement.IsDone()) |
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129 { |
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130 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); |
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131 } |
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132 else if (statement.GetResultFieldsCount() != 1) |
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133 { |
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134 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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135 } |
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136 else |
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137 { |
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138 const IValue& value = statement.GetResultField(0); |
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139 |
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140 switch (value.GetType()) |
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141 { |
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142 case ValueType_File: |
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143 target.Assign(dynamic_cast<const FileValue&>(value).GetContent()); |
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144 break; |
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145 |
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146 case ValueType_BinaryString: |
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147 target.Assign(dynamic_cast<const BinaryStringValue&>(value).GetContent()); |
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148 break; |
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149 |
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150 default: |
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151 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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152 } |
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153 } |
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154 } |
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155 |
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156 |
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157 void StorageBackend::Remove(DatabaseManager::Transaction& transaction, |
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158 const std::string& uuid, |
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159 OrthancPluginContentType type) |
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160 { |
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161 DatabaseManager::CachedStatement statement( |
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162 STATEMENT_FROM_HERE, GetManager(), |
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163 "DELETE FROM StorageArea WHERE uuid=${uuid} AND type=${type}"); |
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164 |
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165 statement.SetParameterType("uuid", ValueType_Utf8String); |
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166 statement.SetParameterType("type", ValueType_Integer64); |
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167 |
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168 Dictionary args; |
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169 args.SetUtf8Value("uuid", uuid); |
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170 args.SetIntegerValue("type", type); |
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171 |
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172 statement.Execute(args); |
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173 } |
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174 |
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175 |
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176 |
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177 static OrthancPluginContext* context_ = NULL; |
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178 static std::unique_ptr<StorageBackend> backend_; |
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179 |
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180 |
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181 static OrthancPluginErrorCode StorageCreate(const char* uuid, |
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182 const void* content, |
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183 int64_t size, |
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184 OrthancPluginContentType type) |
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185 { |
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186 try |
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187 { |
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188 if (backend_.get() == NULL) |
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189 { |
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190 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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191 } |
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192 |
207
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193 DatabaseManager::Transaction transaction(backend_->GetManager(), TransactionType_ReadWrite); |
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194 backend_->Create(transaction, uuid, content, static_cast<size_t>(size), type); |
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195 transaction.Commit(); |
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196 return OrthancPluginErrorCode_Success; |
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197 } |
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198 ORTHANC_PLUGINS_DATABASE_CATCH; |
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199 } |
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200 |
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201 |
195
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202 #if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 9, 0) |
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203 static OrthancPluginErrorCode StorageReadWhole(OrthancPluginMemoryBuffer64* target, |
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204 const char* uuid, |
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205 OrthancPluginContentType type) |
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206 { |
219
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207 class Visitor : public StorageBackend::IFileContentVisitor |
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208 { |
219
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209 private: |
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210 OrthancPluginMemoryBuffer64* target_; |
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211 bool success_; |
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212 |
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213 public: |
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214 Visitor(OrthancPluginMemoryBuffer64* target) : |
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215 target_(target), |
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216 success_(false) |
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217 { |
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218 } |
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219 |
219
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220 bool IsSuccess() const |
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221 { |
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222 return success_; |
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223 } |
195
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224 |
219
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225 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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226 { |
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227 if (success_) |
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228 { |
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229 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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230 } |
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231 else |
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232 { |
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233 assert(context_ != NULL); |
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234 |
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235 if (OrthancPluginCreateMemoryBuffer64(context_, target_, static_cast<uint64_t>(content.size())) != |
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236 OrthancPluginErrorCode_Success) |
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237 { |
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238 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); |
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239 } |
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240 |
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241 if (!content.empty()) |
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242 { |
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243 memcpy(target_->data, content.c_str(), content.size()); |
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244 } |
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245 |
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246 success_ = true; |
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247 } |
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248 } |
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249 }; |
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250 |
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251 try |
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252 { |
219
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253 if (backend_.get() == NULL) |
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254 { |
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255 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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256 } |
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257 |
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258 if (target == NULL) |
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259 { |
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260 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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261 } |
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262 |
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263 Visitor visitor(target); |
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264 |
194
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265 { |
208 | 266 DatabaseManager::Transaction transaction(backend_->GetManager(), TransactionType_ReadOnly); |
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267 backend_->Read(visitor, transaction, uuid, type); |
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268 |
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269 if (!visitor.IsSuccess()) |
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270 { |
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271 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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272 } |
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273 |
194
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274 transaction.Commit(); |
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275 } |
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276 |
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277 return OrthancPluginErrorCode_Success; |
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278 } |
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279 ORTHANC_PLUGINS_DATABASE_CATCH; |
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280 } |
195
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281 #endif |
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282 |
219
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283 |
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284 static OrthancPluginErrorCode StorageRead(void** data, |
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285 int64_t* size, |
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286 const char* uuid, |
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287 OrthancPluginContentType type) |
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288 { |
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289 class Visitor : public StorageBackend::IFileContentVisitor |
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290 { |
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291 private: |
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292 void** data_; |
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293 int64_t* size_; |
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294 bool success_; |
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295 |
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296 public: |
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297 Visitor(void** data, |
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298 int64_t* size) : |
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299 data_(data), |
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300 size_(size), |
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301 success_(false) |
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302 { |
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303 } |
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304 |
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305 bool IsSuccess() const |
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306 { |
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307 return success_; |
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308 } |
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309 |
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310 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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311 { |
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312 if (success_) |
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313 { |
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314 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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315 } |
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316 else |
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317 { |
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318 if (content.empty()) |
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319 { |
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320 *data_ = NULL; |
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321 *size_ = 0; |
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322 } |
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323 else |
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324 { |
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325 *size_ = static_cast<int64_t>(content.size()); |
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326 |
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327 if (static_cast<size_t>(*size_) != content.size()) |
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328 { |
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329 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, |
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330 "File cannot be stored in a 63bit buffer"); |
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331 } |
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332 |
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333 *data_ = malloc(*size_); |
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334 if (*data_ == NULL) |
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335 { |
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336 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); |
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337 } |
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338 |
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339 memcpy(*data_, content.c_str(), *size_); |
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340 } |
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341 |
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342 success_ = true; |
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343 } |
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344 } |
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345 }; |
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346 |
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347 |
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348 try |
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349 { |
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350 if (backend_.get() == NULL) |
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351 { |
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352 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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353 } |
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354 |
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355 if (data == NULL || |
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356 size == NULL) |
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357 { |
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358 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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359 } |
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360 |
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361 Visitor visitor(data, size); |
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362 |
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363 { |
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364 DatabaseManager::Transaction transaction(backend_->GetManager(), TransactionType_ReadOnly); |
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365 backend_->Read(visitor, transaction, uuid, type); |
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366 |
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367 if (!visitor.IsSuccess()) |
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368 { |
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369 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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370 } |
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371 |
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372 transaction.Commit(); |
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373 } |
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374 |
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375 return OrthancPluginErrorCode_Success; |
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376 } |
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377 ORTHANC_PLUGINS_DATABASE_CATCH; |
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378 } |
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379 |
1
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380 |
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381 static OrthancPluginErrorCode StorageRemove(const char* uuid, |
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382 OrthancPluginContentType type) |
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383 { |
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384 try |
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385 { |
207
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386 DatabaseManager::Transaction transaction(backend_->GetManager(), TransactionType_ReadWrite); |
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387 backend_->Remove(transaction, uuid, type); |
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388 transaction.Commit(); |
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389 return OrthancPluginErrorCode_Success; |
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390 } |
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391 ORTHANC_PLUGINS_DATABASE_CATCH; |
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392 } |
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393 |
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394 |
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395 void StorageBackend::Register(OrthancPluginContext* context, |
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396 StorageBackend* backend) |
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397 { |
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398 if (context == NULL || |
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399 backend == NULL) |
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400 { |
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401 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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402 } |
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403 |
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404 if (context_ != NULL || |
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405 backend_.get() != NULL) |
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406 { |
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407 // This function can only be invoked once in the plugin |
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408 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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409 } |
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410 else |
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411 { |
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412 context_ = context; |
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413 backend_.reset(backend); |
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414 |
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415 bool hasLoadedV2 = false; |
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416 |
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417 #if defined(ORTHANC_PLUGINS_VERSION_IS_ABOVE) // Macro introduced in Orthanc 1.3.1 |
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418 # if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 9, 0) |
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419 if (OrthancPluginCheckVersionAdvanced(context, 1, 9, 0) == 1) |
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420 { |
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421 OrthancPluginRegisterStorageArea2(context_, StorageCreate, StorageReadWhole, |
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422 NULL /* TODO - StorageReadRange */, StorageRemove); |
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423 hasLoadedV2 = true; |
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424 } |
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425 # endif |
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426 #endif |
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427 |
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428 if (!hasLoadedV2) |
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429 { |
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430 OrthancPluginRegisterStorageArea(context_, StorageCreate, StorageRead, StorageRemove); |
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431 } |
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432 } |
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433 } |
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434 |
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435 |
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436 void StorageBackend::Finalize() |
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437 { |
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438 backend_.reset(NULL); |
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439 context_ = NULL; |
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440 } |
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441 |
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442 |
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443 void StorageBackend::ReadToString(std::string& target, |
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444 DatabaseManager::Transaction& transaction, |
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445 const std::string& uuid, |
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446 OrthancPluginContentType type) |
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447 { |
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448 class Visitor : public StorageBackend::IFileContentVisitor |
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449 { |
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450 private: |
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451 std::string& target_; |
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452 bool success_; |
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453 |
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454 public: |
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455 Visitor(std::string& target) : |
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456 target_(target), |
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457 success_(false) |
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458 { |
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459 } |
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460 |
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461 bool IsSuccess() const |
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462 { |
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463 return success_; |
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464 } |
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465 |
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466 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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467 { |
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468 if (success_) |
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469 { |
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470 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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471 } |
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472 else |
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473 { |
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474 target_.assign(content); |
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475 success_ = true; |
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476 } |
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477 } |
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478 }; |
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479 |
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480 |
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481 Visitor visitor(target); |
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482 |
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483 Read(visitor, transaction, uuid, type); |
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484 |
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485 if (!visitor.IsSuccess()) |
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486 { |
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487 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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488 } |
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489 } |
1
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490 } |