Mercurial > hg > orthanc-databases
annotate Framework/PostgreSQL/PostgreSQLTransaction.cpp @ 583:ae7375d38607 find-refactoring tip
MySQL: fix ordering
author | Alain Mazy <am@orthanc.team> |
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date | Mon, 21 Oct 2024 18:19:51 +0200 |
parents | 48aba35fe64e |
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rev | line source |
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0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
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 |
0 | 8 * |
9 * This program is free software: you can redistribute it and/or | |
10 * modify it under the terms of the GNU Affero General Public License | |
11 * as published by the Free Software Foundation, either version 3 of | |
12 * the License, or (at your option) any later version. | |
13 * | |
14 * This program is distributed in the hope that it will be useful, but | |
15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 * Affero General Public License for more details. | |
18 * | |
19 * You should have received a copy of the GNU Affero General Public License | |
20 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 **/ | |
22 | |
23 | |
24 #include "PostgreSQLTransaction.h" | |
25 | |
26 #include "PostgreSQLStatement.h" | |
27 | |
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28 #include <Compatibility.h> // For std::unique_ptr<> |
152 | 29 #include <Logging.h> |
30 #include <OrthancException.h> | |
0 | 31 |
32 namespace OrthancDatabases | |
33 { | |
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34 PostgreSQLTransaction::PostgreSQLTransaction(PostgreSQLDatabase& database, |
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35 TransactionType type) : |
0 | 36 database_(database), |
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37 isOpen_(false) |
0 | 38 { |
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39 Begin(type); |
0 | 40 } |
41 | |
42 | |
43 PostgreSQLTransaction::~PostgreSQLTransaction() | |
44 { | |
45 if (isOpen_) | |
46 { | |
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47 LOG(INFO) << "PostgreSQL: An active PostgreSQL transaction was dismissed"; |
0 | 48 |
49 try | |
50 { | |
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51 database_.ExecuteMultiLines("ABORT"); |
0 | 52 } |
53 catch (Orthanc::OrthancException&) | |
54 { | |
46
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55 // Ignore possible exceptions due to connection loss |
0 | 56 } |
57 } | |
58 } | |
59 | |
60 | |
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61 void PostgreSQLTransaction::Begin(TransactionType type) |
0 | 62 { |
63 if (isOpen_) | |
64 { | |
65 LOG(ERROR) << "PostgreSQL: Beginning a transaction twice!"; | |
66 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
67 } | |
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68 std::string transactionStatement; // if not defined, will use the default DB transaction isolation level |
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69 |
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70 switch (type) |
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71 { |
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72 case TransactionType_ReadWrite: |
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73 { |
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74 transactionStatement = database_.GetReadWriteTransactionStatement(); |
497 | 75 break; |
76 } | |
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77 |
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78 case TransactionType_ReadOnly: |
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79 { |
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80 transactionStatement = database_.GetReadOnlyTransactionStatement(); |
497 | 81 break; |
82 } | |
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83 |
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84 default: |
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85 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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86 } |
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87 |
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88 database_.ExecuteMultiLines("BEGIN; " + transactionStatement); |
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89 |
0 | 90 isOpen_ = true; |
91 } | |
92 | |
93 | |
94 void PostgreSQLTransaction::Rollback() | |
95 { | |
96 if (!isOpen_) | |
97 { | |
98 LOG(ERROR) << "PostgreSQL: Attempting to rollback a nonexistent transaction. " | |
99 << "Did you remember to call Begin()?"; | |
100 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
101 } | |
102 | |
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103 database_.ExecuteMultiLines("ABORT"); |
0 | 104 isOpen_ = false; |
105 } | |
106 | |
107 | |
108 void PostgreSQLTransaction::Commit() | |
109 { | |
110 if (!isOpen_) | |
111 { | |
112 LOG(ERROR) << "PostgreSQL: Attempting to roll back a nonexistent transaction. " | |
113 << "Did you remember to call Begin()?"; | |
114 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
115 } | |
116 | |
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117 database_.ExecuteMultiLines("COMMIT"); |
0 | 118 isOpen_ = false; |
119 } | |
120 | |
121 | |
122 IResult* PostgreSQLTransaction::Execute(IPrecompiledStatement& statement, | |
123 const Dictionary& parameters) | |
124 { | |
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125 return dynamic_cast<PostgreSQLStatement&>(statement).Execute(*this, parameters); |
0 | 126 } |
127 | |
128 | |
129 void PostgreSQLTransaction::ExecuteWithoutResult(IPrecompiledStatement& statement, | |
130 const Dictionary& parameters) | |
131 { | |
132 dynamic_cast<PostgreSQLStatement&>(statement).ExecuteWithoutResult(*this, parameters); | |
133 } | |
134 } |