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annotate Framework/Common/ImplicitTransaction.cpp @ 415:7e123f047771

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author Alain Mazy <am@osimis.io>
date Thu, 22 Jun 2023 18:07:41 +0200
parents 3d6886f3e5b3
children ecd0b719cff5
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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) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
23
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Affero General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Affero General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Affero General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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23 #include "ImplicitTransaction.h"
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24
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25 #include <Compatibility.h> // For std::unique_ptr<>
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26 #include <Logging.h>
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27 #include <OrthancException.h>
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29 #include <memory>
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31 namespace OrthancDatabases
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32 {
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33 static bool isErrorOnDoubleExecution_ = false;
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34
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35
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36 ImplicitTransaction::ImplicitTransaction() :
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37 state_(State_Ready)
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38 {
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39 }
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42 ImplicitTransaction::~ImplicitTransaction()
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43 {
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44 switch (state_)
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45 {
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46 case State_Committed:
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47 case State_Ready:
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48 break;
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50 case State_Executed:
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51 LOG(ERROR) << "An implicit transaction has not been committed";
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52 break;
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54 default:
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55 LOG(ERROR) << "Internal error in ImplicitTransaction destructor";
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56 break;
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57 }
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58 }
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60
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61 void ImplicitTransaction::Rollback()
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62 {
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63 LOG(ERROR) << "Cannot rollback an implicit transaction";
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64 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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65 }
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68 void ImplicitTransaction::Commit()
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69 {
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70 switch (state_)
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71 {
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72 case State_Ready:
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73 LOG(ERROR) << "Cannot commit an implicit transaction that has not been executed yet";
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74 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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75
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76 case State_Executed:
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77 state_ = State_Committed;
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78 break;
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79
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80 case State_Committed:
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81 LOG(ERROR) << "Cannot commit twice an implicit transaction";
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82 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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83
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84 default:
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85 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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86 }
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87 }
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88
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89
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90 void ImplicitTransaction::CheckStateForExecution()
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91 {
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92 switch (state_)
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93 {
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94 case State_Ready:
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95 // OK
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96 break;
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97
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98 case State_Executed:
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99 if (isErrorOnDoubleExecution_)
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100 {
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101 /**
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102 * This allows to detect errors wrt. the handling of
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103 * transactions in the Orthanc core.
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104 *
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105 * In Orthanc <= 1.3.2: problems in "/changes" (a transaction
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106 * was missing because of GetPublicId()).
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107 **/
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108 LOG(ERROR) << "Cannot execute more than one statement in an implicit transaction";
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109 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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110 }
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111
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112 break;
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113
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114 case State_Committed:
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115 LOG(ERROR) << "Cannot commit twice an implicit transaction";
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116 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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117
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118 default:
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119 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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120 }
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121 }
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123
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124 IResult* ImplicitTransaction::Execute(IPrecompiledStatement& statement,
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125 const Dictionary& parameters)
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126 {
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127 CheckStateForExecution();
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128 std::unique_ptr<IResult> result(ExecuteInternal(statement, parameters));
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129
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130 state_ = State_Executed;
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131 return result.release();
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132 }
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133
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134
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135 void ImplicitTransaction::ExecuteWithoutResult(IPrecompiledStatement& statement,
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136 const Dictionary& parameters)
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137 {
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138 CheckStateForExecution();
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139 ExecuteWithoutResultInternal(statement, parameters);
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140
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141 state_ = State_Executed;
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142 }
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143
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144
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145 void ImplicitTransaction::SetErrorOnDoubleExecution(bool isError)
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146 {
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147 isErrorOnDoubleExecution_ = isError;
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148 }
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149
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150
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151 bool ImplicitTransaction::IsErrorOnDoubleExecution()
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152 {
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153 return isErrorOnDoubleExecution_;
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154 }
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155 }
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156