Mercurial > hg > orthanc-databases
annotate Framework/Common/DatabaseManager.h @ 67:714c5d2bee76
preparing for 2019
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 24 Dec 2018 13:35:26 +0100 |
| parents | 2fb9cd42af14 |
| children | e6c13ddd26d9 |
| 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 | |
| 67 | 5 * Copyright (C) 2017-2019 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 #pragma once | |
| 23 | |
| 24 #include "IDatabaseFactory.h" | |
| 25 #include "StatementLocation.h" | |
| 26 | |
| 27 #include <Core/Enumerations.h> | |
| 28 | |
| 29 #include <boost/thread/recursive_mutex.hpp> | |
| 30 #include <memory> | |
| 31 | |
| 32 namespace OrthancDatabases | |
| 33 { | |
| 34 class DatabaseManager : public boost::noncopyable | |
| 35 { | |
| 36 private: | |
| 37 typedef std::map<StatementLocation, IPrecompiledStatement*> CachedStatements; | |
| 38 | |
| 39 boost::recursive_mutex mutex_; | |
| 40 std::auto_ptr<IDatabaseFactory> factory_; | |
| 41 std::auto_ptr<IDatabase> database_; | |
| 42 std::auto_ptr<ITransaction> transaction_; | |
| 43 CachedStatements cachedStatements_; | |
| 44 Dialect dialect_; | |
| 45 | |
| 46 IDatabase& GetDatabase(); | |
| 47 | |
| 48 void CloseIfUnavailable(Orthanc::ErrorCode e); | |
| 49 | |
| 50 IPrecompiledStatement* LookupCachedStatement(const StatementLocation& location) const; | |
| 51 | |
| 52 IPrecompiledStatement& CacheStatement(const StatementLocation& location, | |
| 53 const Query& query); | |
| 54 | |
| 55 ITransaction& GetTransaction(); | |
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57 void ReleaseImplicitTransaction(); |
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58 |
| 0 | 59 public: |
| 29 | 60 explicit DatabaseManager(IDatabaseFactory* factory); // Takes ownership |
| 0 | 61 |
| 62 ~DatabaseManager() | |
| 63 { | |
| 64 Close(); | |
| 65 } | |
| 66 | |
| 67 Dialect GetDialect() const | |
| 68 { | |
| 69 return dialect_; | |
| 70 } | |
| 71 | |
| 72 void Open() | |
| 73 { | |
| 74 GetDatabase(); | |
| 75 } | |
| 76 | |
| 77 void Close(); | |
| 78 | |
| 79 void StartTransaction(); | |
| 80 | |
| 81 void CommitTransaction(); | |
| 82 | |
| 83 void RollbackTransaction(); | |
| 84 | |
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85 |
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86 // This class is only used in the "StorageBackend" |
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87 class Transaction : public boost::noncopyable |
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88 { |
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89 private: |
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90 boost::recursive_mutex::scoped_lock lock_; |
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91 DatabaseManager& manager_; |
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92 IDatabase& database_; |
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93 bool committed_; |
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94 |
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95 public: |
| 29 | 96 explicit Transaction(DatabaseManager& manager); |
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97 |
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98 ~Transaction(); |
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99 |
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100 void Commit(); |
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101 |
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102 DatabaseManager& GetManager() |
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103 { |
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104 return manager_; |
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105 } |
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106 |
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107 IDatabase& GetDatabase() |
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108 { |
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109 return database_; |
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110 } |
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111 }; |
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112 |
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113 |
| 0 | 114 class CachedStatement : public boost::noncopyable |
| 115 { | |
| 116 private: | |
| 29 | 117 DatabaseManager& manager_; |
| 0 | 118 boost::recursive_mutex::scoped_lock lock_; |
| 18 | 119 IDatabase& database_; |
| 0 | 120 StatementLocation location_; |
| 121 ITransaction& transaction_; | |
| 122 IPrecompiledStatement* statement_; | |
| 123 std::auto_ptr<Query> query_; | |
| 124 std::auto_ptr<IResult> result_; | |
| 125 | |
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126 void Setup(const char* sql); |
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127 |
| 0 | 128 IResult& GetResult() const; |
| 129 | |
| 130 public: | |
| 131 CachedStatement(const StatementLocation& location, | |
| 132 DatabaseManager& manager, | |
| 133 const char* sql); | |
| 134 | |
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135 CachedStatement(const StatementLocation& location, |
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136 Transaction& transaction, |
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137 const char* sql); |
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138 |
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139 ~CachedStatement(); |
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140 |
| 18 | 141 IDatabase& GetDatabase() |
| 142 { | |
| 143 return database_; | |
| 144 } | |
| 145 | |
| 0 | 146 void SetReadOnly(bool readOnly); |
| 147 | |
| 148 void SetParameterType(const std::string& parameter, | |
| 149 ValueType type); | |
| 150 | |
| 151 void Execute(); | |
| 152 | |
| 153 void Execute(const Dictionary& parameters); | |
| 154 | |
| 155 bool IsDone() const; | |
| 156 | |
| 157 void Next(); | |
| 158 | |
| 159 size_t GetResultFieldsCount() const; | |
| 160 | |
| 161 void SetResultFieldType(size_t field, | |
| 162 ValueType type); | |
| 163 | |
| 164 const IValue& GetResultField(size_t index) const; | |
| 165 }; | |
| 166 }; | |
| 167 } |