Mercurial > hg > orthanc-databases

annotate Framework/Common/ImplicitTransaction.cpp @ 522:c49136b34891 large-queries tip

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author Alain Mazy <am@orthanc.team>
date Fri, 05 Jul 2024 09:15:54 +0200
parents 54d518dcd74a
children
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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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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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8 *
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9 * This program is free software: you can redistribute it and/or
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10 * modify it under the terms of the GNU Affero General Public License
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11 * as published by the Free Software Foundation, either version 3 of
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12 * the License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful, but
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 * Affero General Public License for more details.
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18 *
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19 * You should have received a copy of the GNU Affero General Public License
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20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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21 **/
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24 #include "ImplicitTransaction.h"
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26 #include <Compatibility.h> // For std::unique_ptr<>
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27 #include <Logging.h>
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28 #include <OrthancException.h>
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30 #include <memory>
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32 namespace OrthancDatabases
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33 {
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34 static bool isErrorOnDoubleExecution_ = false;
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36
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37 ImplicitTransaction::ImplicitTransaction() :
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38 state_(State_Ready)
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39 {
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40 }
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43 ImplicitTransaction::~ImplicitTransaction()
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44 {
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45 switch (state_)
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46 {
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47 case State_Committed:
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48 case State_Ready:
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49 break;
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51 case State_Executed:
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52 LOG(ERROR) << "An implicit transaction has not been committed";
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53 break;
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55 default:
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56 LOG(ERROR) << "Internal error in ImplicitTransaction destructor";
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57 break;
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58 }
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59 }
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62 void ImplicitTransaction::Rollback()
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63 {
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64 LOG(ERROR) << "Cannot rollback an implicit transaction";
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65 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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66 }
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69 void ImplicitTransaction::Commit()
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70 {
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71 switch (state_)
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72 {
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73 case State_Ready:
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74 LOG(ERROR) << "Cannot commit an implicit transaction that has not been executed yet";
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75 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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76
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77 case State_Executed:
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78 state_ = State_Committed;
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79 break;
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81 case State_Committed:
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82 LOG(ERROR) << "Cannot commit twice an implicit transaction";
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83 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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85 default:
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86 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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87 }
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88 }
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90
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91 void ImplicitTransaction::CheckStateForExecution()
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92 {
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93 switch (state_)
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94 {
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95 case State_Ready:
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96 // OK
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97 break;
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98
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99 case State_Executed:
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100 if (isErrorOnDoubleExecution_)
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101 {
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102 /**
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103 * This allows to detect errors wrt. the handling of
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104 * transactions in the Orthanc core.
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105 *
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106 * In Orthanc <= 1.3.2: problems in "/changes" (a transaction
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107 * was missing because of GetPublicId()).
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108 **/
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109 LOG(ERROR) << "Cannot execute more than one statement in an implicit transaction";
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110 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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111 }
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112
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113 break;
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114
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115 case State_Committed:
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116 LOG(ERROR) << "Cannot commit twice an implicit transaction";
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117 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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119 default:
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120 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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121 }
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122 }
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124
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125 IResult* ImplicitTransaction::Execute(IPrecompiledStatement& statement,
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126 const Dictionary& parameters)
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127 {
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128 CheckStateForExecution();
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129 std::unique_ptr<IResult> result(ExecuteInternal(statement, parameters));
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130
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131 state_ = State_Executed;
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132 return result.release();
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133 }
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134
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135
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136 void ImplicitTransaction::ExecuteWithoutResult(IPrecompiledStatement& statement,
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137 const Dictionary& parameters)
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138 {
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139 CheckStateForExecution();
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140 ExecuteWithoutResultInternal(statement, parameters);
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141
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142 state_ = State_Executed;
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143 }
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144
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145
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146 void ImplicitTransaction::SetErrorOnDoubleExecution(bool isError)
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147 {
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148 isErrorOnDoubleExecution_ = isError;
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149 }
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150
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151
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152 bool ImplicitTransaction::IsErrorOnDoubleExecution()
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153 {
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154 return isErrorOnDoubleExecution_;
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155 }
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156 }
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157