Mercurial > hg > orthanc-databases
annotate Framework/Plugins/StorageBackend.cpp @ 242:b97a537f4613
MySQL: Support of range reads for the storage area
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 13 Apr 2021 17:00:02 +0200 |
parents | 0a9b48d19643 |
children | 02cd7254c949 |
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 <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::AccessorBase::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::AccessorBase::ReadWhole(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::AccessorBase::ReadRange(IFileContentVisitor& visitor, |
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174 const std::string& uuid, |
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175 OrthancPluginContentType type, |
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176 uint64_t start, |
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177 uint64_t length) |
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178 { |
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179 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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180 } |
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181 |
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182 |
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183 void StorageBackend::AccessorBase::Remove(const std::string& uuid, |
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184 OrthancPluginContentType type) |
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185 { |
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186 DatabaseManager::Transaction transaction(manager_, TransactionType_ReadWrite); |
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187 |
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188 { |
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189 DatabaseManager::CachedStatement statement( |
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190 STATEMENT_FROM_HERE, manager_, |
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191 "DELETE FROM StorageArea WHERE uuid=${uuid} AND type=${type}"); |
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192 |
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193 statement.SetParameterType("uuid", ValueType_Utf8String); |
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194 statement.SetParameterType("type", ValueType_Integer64); |
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195 |
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196 Dictionary args; |
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197 args.SetUtf8Value("uuid", uuid); |
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198 args.SetIntegerValue("type", type); |
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199 |
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200 statement.Execute(args); |
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201 } |
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202 |
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203 transaction.Commit(); |
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204 } |
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205 |
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206 |
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207 |
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208 static OrthancPluginContext* context_ = NULL; |
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209 static std::unique_ptr<StorageBackend> backend_; |
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210 |
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211 |
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212 static OrthancPluginErrorCode StorageCreate(const char* uuid, |
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213 const void* content, |
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214 int64_t size, |
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215 OrthancPluginContentType type) |
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216 { |
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217 try |
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218 { |
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219 if (backend_.get() == NULL) |
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220 { |
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221 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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222 } |
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223 else |
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224 { |
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225 std::unique_ptr<StorageBackend::IAccessor> accessor(backend_->CreateAccessor()); |
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226 accessor->Create(uuid, content, static_cast<size_t>(size), type); |
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227 return OrthancPluginErrorCode_Success; |
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228 } |
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229 } |
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230 ORTHANC_PLUGINS_DATABASE_CATCH; |
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231 } |
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232 |
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233 |
195
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234 #if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 9, 0) |
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235 static OrthancPluginErrorCode StorageReadWhole(OrthancPluginMemoryBuffer64* target, |
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236 const char* uuid, |
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237 OrthancPluginContentType type) |
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238 { |
219
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239 class Visitor : public StorageBackend::IFileContentVisitor |
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240 { |
219
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241 private: |
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242 OrthancPluginMemoryBuffer64* target_; |
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243 bool success_; |
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244 |
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245 public: |
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246 Visitor(OrthancPluginMemoryBuffer64* target) : |
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247 target_(target), |
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248 success_(false) |
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249 { |
242
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250 if (target == NULL) |
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251 { |
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252 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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253 } |
195
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254 } |
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255 |
230
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256 virtual bool IsSuccess() const ORTHANC_OVERRIDE |
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257 { |
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258 return success_; |
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259 } |
195
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260 |
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261 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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262 { |
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263 if (success_) |
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264 { |
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265 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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266 } |
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267 else |
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268 { |
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269 assert(context_ != NULL); |
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270 |
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271 if (OrthancPluginCreateMemoryBuffer64(context_, target_, static_cast<uint64_t>(content.size())) != |
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272 OrthancPluginErrorCode_Success) |
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273 { |
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274 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); |
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275 } |
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276 |
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277 if (!content.empty()) |
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278 { |
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279 memcpy(target_->data, content.c_str(), content.size()); |
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280 } |
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281 |
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282 success_ = true; |
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283 } |
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284 } |
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285 }; |
242
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286 |
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287 |
1
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288 try |
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289 { |
219
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290 if (backend_.get() == NULL) |
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291 { |
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292 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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293 } |
242
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294 else |
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295 { |
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296 Visitor visitor(target); |
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297 |
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298 { |
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299 std::unique_ptr<StorageBackend::IAccessor> accessor(backend_->CreateAccessor()); |
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300 accessor->ReadWhole(visitor, uuid, type); |
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301 } |
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302 |
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303 return OrthancPluginErrorCode_Success; |
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304 } |
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305 } |
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306 ORTHANC_PLUGINS_DATABASE_CATCH; |
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307 } |
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308 |
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309 |
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310 static OrthancPluginErrorCode StorageReadRange(OrthancPluginMemoryBuffer64* target, |
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311 const char* uuid, |
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312 OrthancPluginContentType type, |
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313 uint64_t start) |
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314 { |
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315 class Visitor : public StorageBackend::IFileContentVisitor |
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316 { |
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317 private: |
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318 OrthancPluginMemoryBuffer64* target_; // This buffer is already allocated by the Orthanc core |
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319 bool success_; |
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320 |
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321 public: |
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322 Visitor(OrthancPluginMemoryBuffer64* target) : |
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323 target_(target), |
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324 success_(false) |
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325 { |
242
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326 if (target == NULL) |
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327 { |
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328 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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329 } |
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330 } |
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331 |
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332 virtual bool IsSuccess() const ORTHANC_OVERRIDE |
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333 { |
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334 return success_; |
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335 } |
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336 |
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337 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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338 { |
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339 if (success_) |
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340 { |
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341 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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342 } |
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343 else |
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344 { |
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345 if (content.size() != target_->size) |
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346 { |
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347 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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348 } |
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349 |
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350 if (!content.empty()) |
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351 { |
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352 memcpy(target_->data, content.c_str(), content.size()); |
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353 } |
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354 |
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355 success_ = true; |
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356 } |
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357 } |
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358 }; |
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359 |
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360 |
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361 try |
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362 { |
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363 if (backend_.get() == NULL) |
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364 { |
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365 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
219
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366 } |
230
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367 else |
194
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368 { |
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369 Visitor visitor(target); |
219
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370 |
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371 { |
242
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372 std::unique_ptr<StorageBackend::IAccessor> accessor(backend_->CreateAccessor()); |
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373 accessor->ReadRange(visitor, uuid, type, start, target->size); |
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374 } |
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375 |
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376 return OrthancPluginErrorCode_Success; |
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377 } |
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378 } |
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379 ORTHANC_PLUGINS_DATABASE_CATCH; |
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380 } |
195
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381 #endif |
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382 |
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383 |
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384 static OrthancPluginErrorCode StorageRead(void** data, |
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385 int64_t* size, |
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386 const char* uuid, |
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387 OrthancPluginContentType type) |
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388 { |
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389 class Visitor : public StorageBackend::IFileContentVisitor |
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390 { |
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391 private: |
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392 void** data_; |
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393 int64_t* size_; |
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394 bool success_; |
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395 |
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396 public: |
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397 Visitor(void** data, |
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398 int64_t* size) : |
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399 data_(data), |
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400 size_(size), |
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401 success_(false) |
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402 { |
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403 } |
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404 |
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405 virtual bool IsSuccess() const ORTHANC_OVERRIDE |
219
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406 { |
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407 return success_; |
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408 } |
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409 |
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410 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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411 { |
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412 if (success_) |
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413 { |
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414 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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415 } |
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416 else |
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417 { |
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418 if (content.empty()) |
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419 { |
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420 *data_ = NULL; |
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421 *size_ = 0; |
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422 } |
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423 else |
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424 { |
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425 *size_ = static_cast<int64_t>(content.size()); |
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426 |
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427 if (static_cast<size_t>(*size_) != content.size()) |
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428 { |
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429 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, |
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430 "File cannot be stored in a 63bit buffer"); |
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431 } |
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432 |
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433 *data_ = malloc(*size_); |
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434 if (*data_ == NULL) |
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435 { |
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436 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); |
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437 } |
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|
438 |
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439 memcpy(*data_, content.c_str(), *size_); |
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440 } |
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|
441 |
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|
442 success_ = true; |
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|
443 } |
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|
444 } |
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|
445 }; |
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|
446 |
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|
447 |
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|
448 try |
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|
449 { |
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|
450 if (backend_.get() == NULL) |
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|
451 { |
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|
452 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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453 } |
230
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454 else if (data == NULL || |
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|
455 size == NULL) |
219
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|
456 { |
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|
457 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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458 } |
230
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459 else |
219
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diff
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|
460 { |
230
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diff
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|
461 Visitor visitor(data, size); |
219
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diff
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462 |
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463 { |
242
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464 std::unique_ptr<StorageBackend::IAccessor> accessor(backend_->CreateAccessor()); |
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465 accessor->ReadWhole(visitor, uuid, type); |
230
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466 } |
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467 |
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468 return OrthancPluginErrorCode_Success; |
219
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469 } |
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470 } |
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|
471 ORTHANC_PLUGINS_DATABASE_CATCH; |
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472 } |
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|
473 |
1
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changeset
|
474 |
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475 static OrthancPluginErrorCode StorageRemove(const char* uuid, |
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476 OrthancPluginContentType type) |
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477 { |
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478 try |
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479 { |
230
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480 if (backend_.get() == NULL) |
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481 { |
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482 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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483 } |
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484 else |
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485 { |
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486 std::unique_ptr<StorageBackend::IAccessor> accessor(backend_->CreateAccessor()); |
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487 accessor->Remove(uuid, type); |
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488 return OrthancPluginErrorCode_Success; |
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489 } |
1
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490 } |
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491 ORTHANC_PLUGINS_DATABASE_CATCH; |
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492 } |
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493 |
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494 |
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495 void StorageBackend::Register(OrthancPluginContext* context, |
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496 StorageBackend* backend) |
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497 { |
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498 if (context == NULL || |
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499 backend == NULL) |
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500 { |
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501 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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502 } |
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503 |
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504 if (context_ != NULL || |
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505 backend_.get() != NULL) |
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506 { |
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507 // This function can only be invoked once in the plugin |
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508 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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509 } |
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510 else |
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511 { |
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512 context_ = context; |
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513 backend_.reset(backend); |
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514 |
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515 bool hasLoadedV2 = false; |
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516 |
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517 #if defined(ORTHANC_PLUGINS_VERSION_IS_ABOVE) // Macro introduced in Orthanc 1.3.1 |
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518 # if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 9, 0) |
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519 if (OrthancPluginCheckVersionAdvanced(context, 1, 9, 0) == 1) |
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520 { |
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521 OrthancPluginStorageReadRange readRange = NULL; |
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522 if (backend_->HasReadRange()) |
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523 { |
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524 readRange = StorageReadRange; |
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525 } |
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526 |
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527 OrthancPluginRegisterStorageArea2(context_, StorageCreate, StorageReadWhole, readRange, StorageRemove); |
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528 hasLoadedV2 = true; |
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529 } |
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530 # endif |
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531 #endif |
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532 |
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533 if (!hasLoadedV2) |
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534 { |
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535 OrthancPluginRegisterStorageArea(context_, StorageCreate, StorageRead, StorageRemove); |
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536 } |
1
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537 } |
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538 } |
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539 |
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540 |
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541 void StorageBackend::Finalize() |
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542 { |
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543 backend_.reset(NULL); |
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544 context_ = NULL; |
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545 } |
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546 |
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547 |
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548 class StorageBackend::StringVisitor : public StorageBackend::IFileContentVisitor |
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549 { |
242
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550 private: |
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551 std::string& target_; |
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552 bool success_; |
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553 |
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554 public: |
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555 StringVisitor(std::string& target) : |
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556 target_(target), |
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557 success_(false) |
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558 { |
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559 } |
219
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560 |
242
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561 virtual bool IsSuccess() const ORTHANC_OVERRIDE |
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562 { |
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563 return success_; |
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564 } |
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565 |
242
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566 virtual void Assign(const std::string& content) ORTHANC_OVERRIDE |
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567 { |
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568 if (success_) |
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569 { |
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570 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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571 } |
242
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572 else |
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573 { |
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574 target_.assign(content); |
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575 success_ = true; |
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576 } |
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577 } |
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578 }; |
219
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579 |
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580 |
242
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581 void StorageBackend::ReadWholeToString(std::string& target, |
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582 IAccessor& accessor, |
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583 const std::string& uuid, |
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584 OrthancPluginContentType type) |
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585 { |
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586 StringVisitor visitor(target); |
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587 accessor.ReadWhole(visitor, uuid, type); |
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588 |
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589 if (!visitor.IsSuccess()) |
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590 { |
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591 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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592 } |
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593 } |
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594 |
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595 |
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596 void StorageBackend::ReadRangeToString(std::string& target, |
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597 IAccessor& accessor, |
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598 const std::string& uuid, |
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599 OrthancPluginContentType type, |
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600 uint64_t start, |
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601 uint64_t length) |
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602 { |
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603 StringVisitor visitor(target); |
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604 accessor.ReadRange(visitor, uuid, type, start, length); |
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605 |
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606 if (!visitor.IsSuccess()) |
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607 { |
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608 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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609 } |
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610 } |
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611 } |