Mercurial > hg > orthanc-databases
annotate Framework/Common/ResultBase.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 |
|---|---|
| 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 "ResultBase.h" | |
| 25 | |
| 26 #include "../Common/BinaryStringValue.h" | |
| 27 #include "../Common/Integer64Value.h" | |
| 28 #include "../Common/NullValue.h" | |
| 29 #include "../Common/Utf8StringValue.h" | |
| 30 | |
|
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31 #include <Compatibility.h> // For std::unique_ptr<> |
| 152 | 32 #include <Logging.h> |
| 33 #include <OrthancException.h> | |
| 0 | 34 |
| 35 #include <cassert> | |
| 36 #include <memory> | |
| 37 | |
| 38 namespace OrthancDatabases | |
| 39 { | |
| 40 void ResultBase::ClearFields() | |
| 41 { | |
| 42 for (size_t i = 0; i < fields_.size(); i++) | |
| 43 { | |
| 44 if (fields_[i] != NULL) | |
| 45 { | |
| 46 delete fields_[i]; | |
| 47 fields_[i] = NULL; | |
| 48 } | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 | |
| 53 void ResultBase::ConvertFields() | |
| 54 { | |
| 55 assert(expectedType_.size() == fields_.size() && | |
| 56 hasExpectedType_.size() == fields_.size()); | |
| 57 | |
| 58 for (size_t i = 0; i < fields_.size(); i++) | |
| 59 { | |
| 60 ValueType sourceType = fields_[i]->GetType(); | |
| 61 ValueType targetType = expectedType_[i]; | |
| 62 | |
| 63 if (hasExpectedType_[i] && | |
| 64 sourceType != ValueType_Null && | |
| 65 sourceType != targetType) | |
| 66 { | |
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67 std::unique_ptr<IValue> converted(fields_[i]->Convert(targetType)); |
| 0 | 68 |
| 69 if (converted.get() == NULL) | |
| 70 { | |
| 71 LOG(ERROR) << "Cannot convert between data types from a database"; | |
| 72 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadParameterType); | |
| 73 } | |
| 74 else | |
| 75 { | |
| 76 assert(fields_[i] != NULL); | |
| 77 delete fields_[i]; | |
| 78 fields_[i] = converted.release(); | |
| 79 } | |
| 80 } | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 | |
| 85 void ResultBase::FetchFields() | |
| 86 { | |
| 87 ClearFields(); | |
| 88 | |
| 89 if (!IsDone()) | |
| 90 { | |
| 91 for (size_t i = 0; i < fields_.size(); i++) | |
| 92 { | |
| 93 fields_[i] = FetchField(i); | |
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94 } |
| 0 | 95 |
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96 if (fields_.size() == 1 && fields_[0] == NULL) // this is a "void" result |
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97 { |
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98 return; |
| 0 | 99 } |
| 100 | |
| 101 ConvertFields(); | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 | |
| 106 void ResultBase::SetFieldsCount(size_t count) | |
| 107 { | |
| 108 if (!fields_.empty()) | |
| 109 { | |
| 110 // This method can only be invoked once | |
| 111 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 112 } | |
| 113 | |
| 114 fields_.resize(count); | |
| 115 expectedType_.resize(count, ValueType_Null); | |
| 116 hasExpectedType_.resize(count, false); | |
| 117 } | |
| 118 | |
| 119 | |
| 120 void ResultBase::SetExpectedType(size_t field, | |
| 121 ValueType type) | |
| 122 { | |
| 123 assert(expectedType_.size() == fields_.size() && | |
| 124 hasExpectedType_.size() == fields_.size()); | |
| 125 | |
| 126 if (field < fields_.size()) | |
| 127 { | |
| 128 expectedType_[field] = type; | |
| 129 hasExpectedType_[field] = true; | |
| 130 | |
| 131 if (!IsDone()) | |
| 132 { | |
| 133 ConvertFields(); | |
| 134 } | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 | |
| 139 const IValue& ResultBase::GetField(size_t index) const | |
| 140 { | |
| 141 if (IsDone()) | |
| 142 { | |
| 143 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 144 } | |
| 145 else if (index >= fields_.size()) | |
| 146 { | |
| 147 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 148 } | |
| 149 else if (fields_[index] == NULL) | |
| 150 { | |
| 151 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 152 } | |
| 153 else | |
| 154 { | |
| 155 return *fields_[index]; | |
| 156 } | |
| 157 } | |
| 158 } |