Mercurial > hg > orthanc-databases

annotate Framework/Common/DatabaseManager.cpp @ 75:52c70007bb87 db-changes

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new extension implemented for PostgreSQL: SetResourcesContent
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 05 Jan 2019 11:41:15 +0100
parents e6c13ddd26d9
children 569e17419eae
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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
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714c5d2bee76 preparing for 2019
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5 * Copyright (C) 2017-2019 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 "DatabaseManager.h"
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23
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24 #include <Core/Logging.h>
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25 #include <Core/OrthancException.h>
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26
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27 #include <boost/thread.hpp>
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28
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29 namespace OrthancDatabases
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30 {
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31 IDatabase& DatabaseManager::GetDatabase()
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32 {
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33 static const unsigned int MAX_CONNECTION_ATTEMPTS = 10; // TODO: Parameter
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34
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35 unsigned int count = 0;
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36
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37 while (database_.get() == NULL)
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38 {
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39 transaction_.reset(NULL);
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40
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41 try
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42 {
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43 database_.reset(factory_->Open());
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44 }
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45 catch (Orthanc::OrthancException& e)
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46 {
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47 if (e.GetErrorCode() == Orthanc::ErrorCode_DatabaseUnavailable)
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48 {
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49 count ++;
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50
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51 if (count <= MAX_CONNECTION_ATTEMPTS)
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52 {
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53 LOG(WARNING) << "Database is currently unavailable, retrying...";
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54 boost::this_thread::sleep(boost::posix_time::seconds(1));
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55 continue;
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56 }
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57 else
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58 {
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59 LOG(ERROR) << "Timeout when connecting to the database, giving up";
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60 }
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61 }
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62
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63 throw;
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64 }
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65 }
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66
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67 if (database_.get() == NULL ||
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68 database_->GetDialect() != dialect_)
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69 {
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70 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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71 }
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72 else
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73 {
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74 return *database_;
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75 }
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76 }
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79 void DatabaseManager::Close()
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80 {
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81 LOG(TRACE) << "Closing the connection to the database";
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82
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83 // Rollback active transaction, if any
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84 transaction_.reset(NULL);
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85
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86 // Delete all the cached statements (must occur before closing
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87 // the database)
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88 for (CachedStatements::iterator it = cachedStatements_.begin();
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89 it != cachedStatements_.end(); ++it)
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90 {
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91 assert(it->second != NULL);
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92 delete it->second;
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93 }
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94
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95 cachedStatements_.clear();
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96
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97 // Close the database
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98 database_.reset(NULL);
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99
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100 LOG(TRACE) << "Connection to the database is closed";
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101 }
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102
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103
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104 void DatabaseManager::CloseIfUnavailable(Orthanc::ErrorCode e)
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105 {
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106 if (e != Orthanc::ErrorCode_Success)
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107 {
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108 transaction_.reset(NULL);
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109 }
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110
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111 if (e == Orthanc::ErrorCode_DatabaseUnavailable)
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112 {
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113 LOG(ERROR) << "The database is not available, closing the connection";
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114 Close();
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115 }
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116 }
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117
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118
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119 IPrecompiledStatement* DatabaseManager::LookupCachedStatement(const StatementLocation& location) const
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120 {
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121 CachedStatements::const_iterator found = cachedStatements_.find(location);
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122
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123 if (found == cachedStatements_.end())
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124 {
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125 return NULL;
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126 }
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127 else
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128 {
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129 assert(found->second != NULL);
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130 return found->second;
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131 }
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132 }
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133
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134
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135 IPrecompiledStatement& DatabaseManager::CacheStatement(const StatementLocation& location,
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136 const Query& query)
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137 {
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138 LOG(TRACE) << "Caching statement from " << location.GetFile() << ":" << location.GetLine();
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139
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140 std::auto_ptr<IPrecompiledStatement> statement(GetDatabase().Compile(query));
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141
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142 IPrecompiledStatement* tmp = statement.get();
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143 if (tmp == NULL)
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144 {
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145 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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146 }
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147
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148 assert(cachedStatements_.find(location) == cachedStatements_.end());
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149 cachedStatements_[location] = statement.release();
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150
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151 return *tmp;
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152 }
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153
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154
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155 ITransaction& DatabaseManager::GetTransaction()
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156 {
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157 if (transaction_.get() == NULL)
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158 {
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159 LOG(TRACE) << "Automatically creating an implicit database transaction";
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160
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161 try
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162 {
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163 transaction_.reset(GetDatabase().CreateTransaction(true));
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164 }
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165 catch (Orthanc::OrthancException& e)
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166 {
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167 CloseIfUnavailable(e.GetErrorCode());
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168 throw;
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169 }
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170 }
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171
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172 assert(transaction_.get() != NULL);
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173 return *transaction_;
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174 }
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175
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176
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177 void DatabaseManager::ReleaseImplicitTransaction()
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178 {
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179 if (transaction_.get() != NULL &&
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180 transaction_->IsImplicit())
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181 {
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182 LOG(TRACE) << "Committing an implicit database transaction";
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183
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184 try
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185 {
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186 transaction_->Commit();
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187 transaction_.reset(NULL);
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188 }
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189 catch (Orthanc::OrthancException& e)
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190 {
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191 // Don't throw the exception, as we are in CachedStatement destructor
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192 LOG(ERROR) << "Error while committing an implicit database transaction: " << e.What();
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193 }
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194 }
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195 }
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196
0
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197
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198 DatabaseManager::DatabaseManager(IDatabaseFactory* factory) : // Takes ownership
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199 factory_(factory)
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200 {
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201 if (factory == NULL)
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202 {
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203 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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204 }
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205
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206 dialect_ = factory->GetDialect();
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207 }
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208
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209
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210 void DatabaseManager::StartTransaction()
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211 {
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212 boost::recursive_mutex::scoped_lock lock(mutex_);
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213
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214 try
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215 {
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216 if (transaction_.get() != NULL)
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217 {
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218 LOG(ERROR) << "Cannot start another transaction while there is an uncommitted transaction";
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219 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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220 }
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221
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222 transaction_.reset(GetDatabase().CreateTransaction(false));
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223 }
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224 catch (Orthanc::OrthancException& e)
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225 {
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226 CloseIfUnavailable(e.GetErrorCode());
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227 throw;
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228 }
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229 }
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230
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231
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232 void DatabaseManager::CommitTransaction()
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233 {
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234 boost::recursive_mutex::scoped_lock lock(mutex_);
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235
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236 if (transaction_.get() == NULL)
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237 {
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238 LOG(ERROR) << "Cannot commit a non-existing transaction";
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239 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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240 }
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241 else
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242 {
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243 try
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244 {
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245 transaction_->Commit();
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246 transaction_.reset(NULL);
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247 }
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248 catch (Orthanc::OrthancException& e)
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249 {
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250 CloseIfUnavailable(e.GetErrorCode());
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251 throw;
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252 }
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253 }
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254 }
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255
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256
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257 void DatabaseManager::RollbackTransaction()
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258 {
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259 boost::recursive_mutex::scoped_lock lock(mutex_);
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260
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261 if (transaction_.get() == NULL)
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262 {
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263 LOG(ERROR) << "Cannot rollback a non-existing transaction";
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264 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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265 }
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266 else
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267 {
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268 try
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269 {
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270 transaction_->Rollback();
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271 transaction_.reset(NULL);
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272 }
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273 catch (Orthanc::OrthancException& e)
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274 {
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275 CloseIfUnavailable(e.GetErrorCode());
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276 throw;
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277 }
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278 }
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279 }
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280
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281
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282 DatabaseManager::Transaction::Transaction(DatabaseManager& manager) :
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283 lock_(manager.mutex_),
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284 manager_(manager),
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285 database_(manager.GetDatabase()),
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286 committed_(false)
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287 {
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288 manager_.StartTransaction();
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289 }
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290
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291
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292 DatabaseManager::Transaction::~Transaction()
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293 {
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294 if (!committed_)
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295 {
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296 try
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297 {
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298 manager_.RollbackTransaction();
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299 }
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300 catch (Orthanc::OrthancException& e)
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301 {
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302 // Don't rethrow the exception as we are in a destructor
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303 LOG(ERROR) << "Uncatched error during some transaction rollback: " << e.What();
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304 }
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305 }
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306 }
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307
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308
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309 void DatabaseManager::Transaction::Commit()
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diff changeset
310 {
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 18
diff changeset
311 if (committed_)
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
312 {
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
313 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
314 }
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diff changeset
315 else
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diff changeset
316 {
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
317 manager_.CommitTransaction();
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
318 committed_ = true;
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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319 }
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320 }
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
321
70
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diff changeset
322
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diff changeset
323 IResult& DatabaseManager::StatementBase::GetResult() const
12
41543239072d transactions for storage area
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parents: 0
diff changeset
324 {
70
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325 if (result_.get() == NULL)
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326 {
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327 LOG(ERROR) << "Accessing the results of a statement without having executed it";
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328 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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diff changeset
329 }
12
41543239072d transactions for storage area
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diff changeset
330
70
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diff changeset
331 return *result_;
12
41543239072d transactions for storage area
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diff changeset
332 }
41543239072d transactions for storage area
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parents: 0
diff changeset
333
23
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
334
70
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diff changeset
335 void DatabaseManager::StatementBase::SetQuery(Query* query)
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336 {
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337 std::auto_ptr<Query> protection(query);
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338
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339 if (query_.get() != NULL)
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340 {
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341 LOG(ERROR) << "Cannot set twice a query";
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342 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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343 }
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344
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345 if (query == NULL)
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346 {
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347 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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348 }
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349
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diff changeset
350 query_.reset(protection.release());
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351 }
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diff changeset
352
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diff changeset
353
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diff changeset
354 void DatabaseManager::StatementBase::SetResult(IResult* result)
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355 {
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diff changeset
356 std::auto_ptr<IResult> protection(result);
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diff changeset
357
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diff changeset
358 if (result_.get() != NULL)
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parents: 67
diff changeset
359 {
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diff changeset
360 LOG(ERROR) << "Cannot execute twice a statement";
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361 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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diff changeset
362 }
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parents: 67
diff changeset
363
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diff changeset
364 if (result == NULL)
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parents: 67
diff changeset
365 {
e6c13ddd26d9 all integration tests passing with LookupResources extension
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diff changeset
366 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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parents: 67
diff changeset
367 }
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parents: 67
diff changeset
368
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diff changeset
369 result_.reset(protection.release());
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370 }
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parents: 67
diff changeset
371
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diff changeset
372
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diff changeset
373 DatabaseManager::StatementBase::StatementBase(DatabaseManager& manager) :
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374 manager_(manager),
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375 lock_(manager_.mutex_),
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diff changeset
376 transaction_(manager_.GetTransaction())
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diff changeset
377 {
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diff changeset
378 }
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parents: 67
diff changeset
379
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parents: 67
diff changeset
380
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diff changeset
381 DatabaseManager::StatementBase::~StatementBase()
23
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
382 {
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
383 manager_.ReleaseImplicitTransaction();
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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diff changeset
384 }
70
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parents: 67
diff changeset
385
23
b2ff1cd2907a handling of implicit transactions in DatabaseManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 18
diff changeset
386
70
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diff changeset
387 void DatabaseManager::StatementBase::SetReadOnly(bool readOnly)
0
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diff changeset
388 {
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diff changeset
389 if (query_.get() != NULL)
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parents:
diff changeset
390 {
7cea966b6829 initial commit
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parents:
diff changeset
391 query_->SetReadOnly(readOnly);
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parents:
diff changeset
392 }
7cea966b6829 initial commit
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parents:
diff changeset
393 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
394
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
395
70
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parents: 67
diff changeset
396 void DatabaseManager::StatementBase::SetParameterType(const std::string& parameter,
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parents: 67
diff changeset
397 ValueType type)
0
7cea966b6829 initial commit
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parents:
diff changeset
398 {
7cea966b6829 initial commit
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parents:
diff changeset
399 if (query_.get() != NULL)
7cea966b6829 initial commit
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parents:
diff changeset
400 {
7cea966b6829 initial commit
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parents:
diff changeset
401 query_->SetType(parameter, type);
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parents:
diff changeset
402 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
403 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
404
70
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
405 bool DatabaseManager::StatementBase::IsDone() const
0
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
406 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
407 try
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
408 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
409 return GetResult().IsDone();
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
410 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
411 catch (Orthanc::OrthancException& e)
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
412 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
413 manager_.CloseIfUnavailable(e.GetErrorCode());
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
414 throw;
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
415 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
416 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
417
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
418
70
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
419 void DatabaseManager::StatementBase::Next()
0
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
420 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
421 try
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
422 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
423 GetResult().Next();
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
424 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
425 catch (Orthanc::OrthancException& e)
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
426 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
427 manager_.CloseIfUnavailable(e.GetErrorCode());
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
428 throw;
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
429 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
430 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
431
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
432
70
e6c13ddd26d9 all integration tests passing with LookupResources extension
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 67
diff changeset
433 size_t DatabaseManager::StatementBase::GetResultFieldsCount() const
0
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
434 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
435 try
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
436 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
437 return GetResult().GetFieldsCount();
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
438 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
439 catch (Orthanc::OrthancException& e)
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
440 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
441 manager_.CloseIfUnavailable(e.GetErrorCode());
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
442 throw;
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
443 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
444 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
445
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
446
70
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
447 void DatabaseManager::StatementBase::SetResultFieldType(size_t field,
e6c13ddd26d9 all integration tests passing with LookupResources extension
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 67
diff changeset
448 ValueType type)
0
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
449 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
450 try
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
451 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
452 if (!GetResult().IsDone())
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
453 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
454 GetResult().SetExpectedType(field, type);
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
455 }
7cea966b6829 initial commit
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456 }
7cea966b6829 initial commit
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diff changeset
457 catch (Orthanc::OrthancException& e)
7cea966b6829 initial commit
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458 {
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459 manager_.CloseIfUnavailable(e.GetErrorCode());
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460 throw;
7cea966b6829 initial commit
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parents:
diff changeset
461 }
7cea966b6829 initial commit
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parents:
diff changeset
462 }
7cea966b6829 initial commit
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parents:
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463
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464
70
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465 const IValue& DatabaseManager::StatementBase::GetResultField(size_t index) const
0
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466 {
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467 try
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468 {
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469 return GetResult().GetField(index);
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470 }
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471 catch (Orthanc::OrthancException& e)
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472 {
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473 manager_.CloseIfUnavailable(e.GetErrorCode());
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474 throw;
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475 }
70
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476 }
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parents: 67
diff changeset
477
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478
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479 DatabaseManager::CachedStatement::CachedStatement(const StatementLocation& location,
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480 DatabaseManager& manager,
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481 const std::string& sql) :
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482 StatementBase(manager),
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483 location_(location)
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484 {
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485 statement_ = GetManager().LookupCachedStatement(location_);
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486
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487 if (statement_ == NULL)
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488 {
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489 SetQuery(new Query(sql));
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490 }
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491 else
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492 {
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493 LOG(TRACE) << "Reusing cached statement from "
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494 << location_.GetFile() << ":" << location_.GetLine();
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495 }
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496 }
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497
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498
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499 void DatabaseManager::CachedStatement::Execute(const Dictionary& parameters)
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500 {
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501 try
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502 {
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503 std::auto_ptr<Query> query(ReleaseQuery());
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504
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505 if (query.get() != NULL)
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506 {
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507 // Register the newly-created statement
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508 assert(statement_ == NULL);
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509 statement_ = &GetManager().CacheStatement(location_, *query);
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510 }
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diff changeset
511
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512 assert(statement_ != NULL);
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513 SetResult(GetTransaction().Execute(*statement_, parameters));
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diff changeset
514 }
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diff changeset
515 catch (Orthanc::OrthancException& e)
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516 {
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diff changeset
517 GetManager().CloseIfUnavailable(e.GetErrorCode());
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518 throw;
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parents: 67
diff changeset
519 }
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parents: 67
diff changeset
520 }
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parents: 67
diff changeset
521
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522
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523 DatabaseManager::StandaloneStatement::StandaloneStatement(DatabaseManager& manager,
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524 const std::string& sql) :
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diff changeset
525 StatementBase(manager)
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parents: 67
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526 {
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parents: 67
diff changeset
527 SetQuery(new Query(sql));
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parents: 67
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528 }
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parents: 67
diff changeset
529
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
530
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parents: 67
diff changeset
531 DatabaseManager::StandaloneStatement::~StandaloneStatement()
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parents: 67
diff changeset
532 {
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parents: 67
diff changeset
533 // The result must be removed before the statement, cf. (*)
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parents: 67
diff changeset
534 ClearResult();
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parents: 67
diff changeset
535 statement_.reset();
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parents: 67
diff changeset
536 }
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
537
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
538
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
539 void DatabaseManager::StandaloneStatement::Execute(const Dictionary& parameters)
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
540 {
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parents: 67
diff changeset
541 try
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parents: 67
diff changeset
542 {
e6c13ddd26d9 all integration tests passing with LookupResources extension
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parents: 67
diff changeset
543 std::auto_ptr<Query> query(ReleaseQuery());
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parents: 67
diff changeset
544 assert(query.get() != NULL);
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parents: 67
diff changeset
545
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parents: 67
diff changeset
546 // The "statement_" object must be kept as long as the "IResult"
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547 // is not destroyed, as the "IResult" can make calls to the
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548 // statement (this is the case for SQLite and MySQL) - (*)
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diff changeset
549 statement_.reset(GetManager().GetDatabase().Compile(*query));
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parents: 67
diff changeset
550 assert(statement_.get() != NULL);
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parents: 67
diff changeset
551
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parents: 67
diff changeset
552 SetResult(GetTransaction().Execute(*statement_, parameters));
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parents: 67
diff changeset
553 }
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parents: 67
diff changeset
554 catch (Orthanc::OrthancException& e)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 67
diff changeset
555 {
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parents: 67
diff changeset
556 GetManager().CloseIfUnavailable(e.GetErrorCode());
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 67
diff changeset
557 throw;
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 67
diff changeset
558 }
0
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
559 }
7cea966b6829 initial commit
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parents:
diff changeset
560 }