Mercurial > hg > orthanc-databases
annotate Framework/MySQL/MySQLTransaction.cpp @ 152:063aa53b5917
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 01 Jul 2020 08:54:32 +0200 |
| parents | 4cd7e45b671e |
| children | 275e14f57f1e |
| rev | line source |
|---|---|
| 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) 2017-2020 Osimis S.A., Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "MySQLTransaction.h" | |
| 23 | |
| 24 #include "MySQLStatement.h" | |
| 25 | |
| 152 | 26 #include <Logging.h> |
| 27 #include <OrthancException.h> | |
| 0 | 28 |
| 29 #include <memory> | |
| 30 | |
| 31 namespace OrthancDatabases | |
| 32 { | |
| 33 MySQLTransaction::MySQLTransaction(MySQLDatabase& db) : | |
| 34 db_(db), | |
| 35 readOnly_(true), | |
| 36 active_(false) | |
| 37 { | |
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38 db_.Execute("START TRANSACTION", false); |
| 0 | 39 active_ = true; |
| 40 } | |
| 41 | |
| 42 | |
| 43 MySQLTransaction::~MySQLTransaction() | |
| 44 { | |
| 45 if (active_) | |
| 46 { | |
| 47 LOG(WARNING) << "An active MySQL transaction was dismissed"; | |
| 48 | |
| 49 try | |
| 50 { | |
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51 db_.Execute("ROLLBACK", false); |
| 0 | 52 } |
| 53 catch (Orthanc::OrthancException&) | |
| 54 { | |
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55 // Ignore possible exceptions due to connection loss |
| 0 | 56 } |
| 57 } | |
| 58 } | |
| 59 | |
| 60 | |
| 61 void MySQLTransaction::Rollback() | |
| 62 { | |
| 63 if (active_) | |
| 64 { | |
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65 db_.Execute("ROLLBACK", false); |
| 0 | 66 active_ = false; |
| 67 readOnly_ = true; | |
| 68 } | |
| 69 else | |
| 70 { | |
| 71 LOG(ERROR) << "MySQL: This transaction is already finished"; | |
| 72 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 | |
| 77 void MySQLTransaction::Commit() | |
| 78 { | |
| 79 if (active_) | |
| 80 { | |
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81 db_.Execute("COMMIT", false); |
| 0 | 82 active_ = false; |
| 83 readOnly_ = true; | |
| 84 } | |
| 85 else | |
| 86 { | |
| 87 LOG(ERROR) << "MySQL: This transaction is already finished"; | |
| 88 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 | |
| 93 IResult* MySQLTransaction::Execute(IPrecompiledStatement& statement, | |
| 94 const Dictionary& parameters) | |
| 95 { | |
| 96 std::auto_ptr<IResult> result(dynamic_cast<MySQLStatement&>(statement).Execute(*this, parameters)); | |
| 97 | |
| 98 if (!statement.IsReadOnly()) | |
| 99 { | |
| 100 readOnly_ = false; | |
| 101 } | |
| 102 | |
| 103 return result.release(); | |
| 104 } | |
| 105 | |
| 106 | |
| 107 void MySQLTransaction::ExecuteWithoutResult(IPrecompiledStatement& statement, | |
| 108 const Dictionary& parameters) | |
| 109 { | |
| 110 dynamic_cast<MySQLStatement&>(statement).ExecuteWithoutResult(*this, parameters); | |
| 111 | |
| 112 if (!statement.IsReadOnly()) | |
| 113 { | |
| 114 readOnly_ = false; | |
| 115 } | |
| 116 } | |
| 117 } |