Mercurial > hg > orthanc-databases
annotate Framework/MySQL/MySQLTransaction.cpp @ 522:c49136b34891 large-queries tip
use a prepared statement for InsertOrUpdateMetadata
| author | Alain Mazy <am@orthanc.team> |
|---|---|
| date | Fri, 05 Jul 2024 09:15:54 +0200 |
| parents | 54d518dcd74a |
| children |
| 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 "MySQLTransaction.h" | |
| 25 | |
| 26 #include "MySQLStatement.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 #include <memory> | |
| 33 | |
| 34 namespace OrthancDatabases | |
| 35 { | |
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36 MySQLTransaction::MySQLTransaction(MySQLDatabase& db, |
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37 TransactionType type) : |
| 0 | 38 db_(db), |
| 39 active_(false) | |
| 40 { | |
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41 switch (type) |
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42 { |
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43 case TransactionType_ReadWrite: |
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44 db_.ExecuteMultiLines("START TRANSACTION READ WRITE", false); |
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45 break; |
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46 |
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47 case TransactionType_ReadOnly: |
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48 db_.ExecuteMultiLines("START TRANSACTION READ ONLY", false); |
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49 break; |
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50 |
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51 default: |
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52 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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53 } |
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54 |
| 0 | 55 active_ = true; |
| 56 } | |
| 57 | |
| 58 | |
| 59 MySQLTransaction::~MySQLTransaction() | |
| 60 { | |
| 61 if (active_) | |
| 62 { | |
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63 LOG(INFO) << "An active MySQL transaction was dismissed"; |
| 0 | 64 |
| 65 try | |
| 66 { | |
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67 db_.ExecuteMultiLines("ROLLBACK", false); |
| 0 | 68 } |
| 69 catch (Orthanc::OrthancException&) | |
| 70 { | |
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71 // Ignore possible exceptions due to connection loss |
| 0 | 72 } |
| 73 } | |
| 74 } | |
| 75 | |
| 76 | |
| 77 void MySQLTransaction::Rollback() | |
| 78 { | |
| 79 if (active_) | |
| 80 { | |
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81 db_.ExecuteMultiLines("ROLLBACK", false); |
| 0 | 82 active_ = false; |
| 83 } | |
| 84 else | |
| 85 { | |
| 86 LOG(ERROR) << "MySQL: This transaction is already finished"; | |
| 87 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 | |
| 92 void MySQLTransaction::Commit() | |
| 93 { | |
| 94 if (active_) | |
| 95 { | |
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96 db_.ExecuteMultiLines("COMMIT", false); |
| 0 | 97 active_ = false; |
| 98 } | |
| 99 else | |
| 100 { | |
| 101 LOG(ERROR) << "MySQL: This transaction is already finished"; | |
| 102 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 103 } | |
| 104 } | |
| 105 | |
| 106 | |
| 107 IResult* MySQLTransaction::Execute(IPrecompiledStatement& statement, | |
| 108 const Dictionary& parameters) | |
| 109 { | |
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110 return dynamic_cast<MySQLStatement&>(statement).Execute(*this, parameters); |
| 0 | 111 } |
| 112 | |
| 113 | |
| 114 void MySQLTransaction::ExecuteWithoutResult(IPrecompiledStatement& statement, | |
| 115 const Dictionary& parameters) | |
| 116 { | |
| 117 dynamic_cast<MySQLStatement&>(statement).ExecuteWithoutResult(*this, parameters); | |
| 118 } | |
| 119 } |