Mercurial > hg > orthanc-databases
annotate Framework/Plugins/StorageBackend.cpp @ 231:0a9b48d19643
removed mutex out of DatabaseManager
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 06 Apr 2021 11:59:31 +0200 |
parents | 675f8322eb7c |
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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 <cassert> |
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35 #include <limits> |
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36 |
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37 |
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38 #define ORTHANC_PLUGINS_DATABASE_CATCH \ |
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39 catch (::Orthanc::OrthancException& e) \ |
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40 { \ |
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41 return static_cast<OrthancPluginErrorCode>(e.GetErrorCode()); \ |
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42 } \ |
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43 catch (::std::runtime_error& e) \ |
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44 { \ |
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45 std::string s = "Exception in storage area back-end: " + std::string(e.what()); \ |
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46 OrthancPluginLogError(context_, s.c_str()); \ |
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47 return OrthancPluginErrorCode_DatabasePlugin; \ |
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48 } \ |
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49 catch (...) \ |
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50 { \ |
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51 OrthancPluginLogError(context_, "Native exception"); \ |
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52 return OrthancPluginErrorCode_DatabasePlugin; \ |
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53 } |
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54 |
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55 |
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56 namespace OrthancDatabases |
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57 { |
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58 void StorageBackend::SetDatabase(IDatabase* database) |
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59 { |
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60 if (database == NULL) |
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61 { |
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62 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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63 } |
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64 else if (manager_.get() != NULL) |
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65 { |
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66 delete database; |
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67 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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68 } |
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69 else |
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70 { |
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71 manager_.reset(new DatabaseManager(database)); |
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72 } |
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73 } |
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74 |
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75 DatabaseManager& StorageBackend::GetManager() |
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76 { |
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77 if (manager_.get() == NULL) |
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78 { |
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79 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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80 } |
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81 else |
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82 { |
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83 return *manager_; |
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84 } |
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85 } |
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86 |
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87 |
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88 void StorageBackend::Accessor::Create(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::Transaction transaction(manager_, TransactionType_ReadWrite); |
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94 |
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95 { |
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96 DatabaseManager::CachedStatement statement( |
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97 STATEMENT_FROM_HERE, manager_, |
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98 "INSERT INTO StorageArea VALUES (${uuid}, ${content}, ${type})"); |
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99 |
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100 statement.SetParameterType("uuid", ValueType_Utf8String); |
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101 statement.SetParameterType("content", ValueType_File); |
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102 statement.SetParameterType("type", ValueType_Integer64); |
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103 |
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104 Dictionary args; |
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105 args.SetUtf8Value("uuid", uuid); |
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106 args.SetFileValue("content", content, size); |
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107 args.SetIntegerValue("type", type); |
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108 |
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109 statement.Execute(args); |
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110 } |
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111 |
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112 transaction.Commit(); |
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113 } |
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114 |
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115 |
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116 void StorageBackend::Accessor::Read(StorageBackend::IFileContentVisitor& visitor, |
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117 const std::string& uuid, |
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118 OrthancPluginContentType type) |
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119 { |
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120 DatabaseManager::Transaction transaction(manager_, TransactionType_ReadOnly); |
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121 |
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122 { |
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123 DatabaseManager::CachedStatement statement( |
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124 STATEMENT_FROM_HERE, manager_, |
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125 "SELECT content FROM StorageArea WHERE uuid=${uuid} AND type=${type}"); |
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126 |
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127 statement.SetParameterType("uuid", ValueType_Utf8String); |
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128 statement.SetParameterType("type", ValueType_Integer64); |
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129 |
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130 Dictionary args; |
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131 args.SetUtf8Value("uuid", uuid); |
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132 args.SetIntegerValue("type", type); |
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133 |
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134 statement.Execute(args); |
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135 |
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136 if (statement.IsDone()) |
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137 { |
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138 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); |
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139 } |
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140 else if (statement.GetResultFieldsCount() != 1) |
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141 { |
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142 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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143 } |
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144 else |
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145 { |
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146 const IValue& value = statement.GetResultField(0); |
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147 |
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148 switch (value.GetType()) |
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149 { |
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150 case ValueType_File: |
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151 visitor.Assign(dynamic_cast<const FileValue&>(value).GetContent()); |
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152 break; |
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153 |
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154 case ValueType_BinaryString: |
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155 visitor.Assign(dynamic_cast<const BinaryStringValue&>(value).GetContent()); |
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156 break; |
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157 |
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158 default: |
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159 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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160 } |
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161 } |
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162 } |
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163 |
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164 transaction.Commit(); |
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165 |
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166 if (!visitor.IsSuccess()) |
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167 { |
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168 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database, "Could not read attachment from the storage area"); |
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169 } |
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170 } |
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171 |
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172 |
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173 void StorageBackend::Accessor::Remove(const std::string& uuid, |
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174 OrthancPluginContentType type) |
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175 { |
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176 DatabaseManager::Transaction transaction(manager_, TransactionType_ReadWrite); |
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177 |
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178 { |
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179 DatabaseManager::CachedStatement statement( |
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180 STATEMENT_FROM_HERE, manager_, |
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181 "DELETE FROM StorageArea WHERE uuid=${uuid} AND type=${type}"); |
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182 |
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183 statement.SetParameterType("uuid", ValueType_Utf8String); |
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184 statement.SetParameterType("type", ValueType_Integer64); |
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185 |
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186 Dictionary args; |
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187 args.SetUtf8Value("uuid", uuid); |
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188 args.SetIntegerValue("type", type); |
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189 |
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190 statement.Execute(args); |
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191 } |
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192 |
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193 transaction.Commit(); |
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194 } |
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195 |
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196 |
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197 |
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198 static OrthancPluginContext* context_ = NULL; |
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199 static std::unique_ptr<StorageBackend> backend_; |
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200 |
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201 |
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202 static OrthancPluginErrorCode StorageCreate(const char* uuid, |
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203 const void* content, |
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204 int64_t size, |
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205 OrthancPluginContentType type) |
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206 { |
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207 try |
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208 { |
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209 if (backend_.get() == NULL) |
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210 { |
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211 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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212 } |
230
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213 else |
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214 { |
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215 StorageBackend::Accessor accessor(*backend_); |
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216 accessor.Create(uuid, content, static_cast<size_t>(size), type); |
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217 return OrthancPluginErrorCode_Success; |
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218 } |
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219 } |
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220 ORTHANC_PLUGINS_DATABASE_CATCH; |
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221 } |
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222 |
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223 |
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224 #if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 9, 0) |
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225 static OrthancPluginErrorCode StorageReadWhole(OrthancPluginMemoryBuffer64* target, |
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226 const char* uuid, |
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227 OrthancPluginContentType type) |
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228 { |
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229 class Visitor : public StorageBackend::IFileContentVisitor |
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230 { |
219
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231 private: |
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232 OrthancPluginMemoryBuffer64* target_; |
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233 bool success_; |
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234 |
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235 public: |
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236 Visitor(OrthancPluginMemoryBuffer64* target) : |
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237 target_(target), |
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238 success_(false) |
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239 { |
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240 } |
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241 |
230
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242 virtual bool IsSuccess() const ORTHANC_OVERRIDE |
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243 { |
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244 return success_; |
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245 } |
195
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246 |
219
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247 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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248 { |
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249 if (success_) |
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250 { |
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251 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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252 } |
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253 else |
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254 { |
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255 assert(context_ != NULL); |
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256 |
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257 if (OrthancPluginCreateMemoryBuffer64(context_, target_, static_cast<uint64_t>(content.size())) != |
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258 OrthancPluginErrorCode_Success) |
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259 { |
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260 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); |
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261 } |
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262 |
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263 if (!content.empty()) |
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264 { |
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265 memcpy(target_->data, content.c_str(), content.size()); |
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266 } |
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267 |
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268 success_ = true; |
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269 } |
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270 } |
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271 }; |
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272 |
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273 try |
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274 { |
219
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275 if (backend_.get() == NULL) |
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276 { |
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277 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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278 } |
230
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279 else if (target == NULL) |
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280 { |
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281 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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282 } |
230
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283 else |
194
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284 { |
230
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285 Visitor visitor(target); |
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286 |
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287 { |
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288 StorageBackend::Accessor accessor(*backend_); |
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289 accessor.Read(visitor, uuid, type); |
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290 } |
230
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291 |
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292 return OrthancPluginErrorCode_Success; |
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293 } |
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294 } |
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295 ORTHANC_PLUGINS_DATABASE_CATCH; |
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296 } |
195
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297 #endif |
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298 |
219
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299 |
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300 static OrthancPluginErrorCode StorageRead(void** data, |
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301 int64_t* size, |
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302 const char* uuid, |
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303 OrthancPluginContentType type) |
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304 { |
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305 class Visitor : public StorageBackend::IFileContentVisitor |
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306 { |
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307 private: |
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308 void** data_; |
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309 int64_t* size_; |
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310 bool success_; |
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311 |
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312 public: |
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313 Visitor(void** data, |
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314 int64_t* size) : |
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315 data_(data), |
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316 size_(size), |
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317 success_(false) |
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318 { |
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319 } |
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320 |
230
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321 virtual bool IsSuccess() const ORTHANC_OVERRIDE |
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322 { |
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323 return success_; |
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324 } |
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325 |
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326 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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327 { |
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328 if (success_) |
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329 { |
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330 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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331 } |
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332 else |
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333 { |
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334 if (content.empty()) |
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335 { |
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336 *data_ = NULL; |
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337 *size_ = 0; |
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338 } |
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339 else |
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340 { |
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341 *size_ = static_cast<int64_t>(content.size()); |
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342 |
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343 if (static_cast<size_t>(*size_) != content.size()) |
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344 { |
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345 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, |
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346 "File cannot be stored in a 63bit buffer"); |
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347 } |
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348 |
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349 *data_ = malloc(*size_); |
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350 if (*data_ == NULL) |
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351 { |
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352 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); |
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353 } |
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354 |
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355 memcpy(*data_, content.c_str(), *size_); |
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356 } |
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357 |
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358 success_ = true; |
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359 } |
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360 } |
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361 }; |
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362 |
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363 |
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364 try |
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365 { |
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366 if (backend_.get() == NULL) |
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367 { |
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368 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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369 } |
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370 else if (data == NULL || |
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371 size == NULL) |
219
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372 { |
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373 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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374 } |
230
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375 else |
219
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376 { |
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377 Visitor visitor(data, size); |
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378 |
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379 { |
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380 StorageBackend::Accessor accessor(*backend_); |
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381 accessor.Read(visitor, uuid, type); |
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382 } |
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383 |
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384 return OrthancPluginErrorCode_Success; |
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385 } |
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386 } |
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387 ORTHANC_PLUGINS_DATABASE_CATCH; |
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388 } |
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389 |
1
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390 |
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391 static OrthancPluginErrorCode StorageRemove(const char* uuid, |
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392 OrthancPluginContentType type) |
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393 { |
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394 try |
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395 { |
230
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396 if (backend_.get() == NULL) |
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397 { |
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398 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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399 } |
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400 else |
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401 { |
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402 StorageBackend::Accessor accessor(*backend_); |
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403 accessor.Remove(uuid, type); |
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404 return OrthancPluginErrorCode_Success; |
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405 } |
1
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406 } |
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407 ORTHANC_PLUGINS_DATABASE_CATCH; |
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408 } |
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409 |
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410 |
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411 void StorageBackend::Register(OrthancPluginContext* context, |
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412 StorageBackend* backend) |
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413 { |
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414 if (context == NULL || |
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415 backend == NULL) |
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416 { |
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417 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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418 } |
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419 |
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420 if (context_ != NULL || |
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421 backend_.get() != NULL) |
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422 { |
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423 // This function can only be invoked once in the plugin |
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424 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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425 } |
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426 else |
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427 { |
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428 context_ = context; |
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429 backend_.reset(backend); |
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430 |
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431 bool hasLoadedV2 = false; |
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432 |
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433 #if defined(ORTHANC_PLUGINS_VERSION_IS_ABOVE) // Macro introduced in Orthanc 1.3.1 |
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434 # if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 9, 0) |
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435 if (OrthancPluginCheckVersionAdvanced(context, 1, 9, 0) == 1) |
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436 { |
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437 OrthancPluginRegisterStorageArea2(context_, StorageCreate, StorageReadWhole, |
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438 NULL /* TODO - StorageReadRange */, StorageRemove); |
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439 hasLoadedV2 = true; |
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440 } |
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441 # endif |
195
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442 #endif |
219
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443 |
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444 if (!hasLoadedV2) |
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445 { |
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446 OrthancPluginRegisterStorageArea(context_, StorageCreate, StorageRead, StorageRemove); |
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447 } |
1
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448 } |
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449 } |
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450 |
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451 |
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452 void StorageBackend::Finalize() |
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453 { |
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454 backend_.reset(NULL); |
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455 context_ = NULL; |
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456 } |
219
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457 |
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458 |
230
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459 void StorageBackend::Accessor::ReadToString(std::string& target, |
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460 const std::string& uuid, |
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461 OrthancPluginContentType type) |
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462 { |
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463 class Visitor : public StorageBackend::IFileContentVisitor |
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464 { |
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465 private: |
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466 std::string& target_; |
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467 bool success_; |
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468 |
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469 public: |
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470 Visitor(std::string& target) : |
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471 target_(target), |
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472 success_(false) |
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473 { |
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474 } |
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475 |
230
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476 virtual bool IsSuccess() const ORTHANC_OVERRIDE |
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477 { |
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478 return success_; |
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479 } |
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480 |
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481 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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482 { |
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483 if (success_) |
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484 { |
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485 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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486 } |
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487 else |
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488 { |
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489 target_.assign(content); |
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490 success_ = true; |
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491 } |
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492 } |
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493 }; |
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494 |
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495 |
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496 Visitor visitor(target); |
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497 Read(visitor, uuid, type); |
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498 } |
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499 } |