1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20
21 #include "macabcondition.hxx"
22 #include "MacabHeader.hxx"
23 #include "MacabRecord.hxx"
24 #include <connectivity/CommonTools.hxx>
25
26 using namespace ::connectivity::macab;
27 using namespace ::com::sun::star::sdbc;
28
~MacabCondition()29 MacabCondition::~MacabCondition()
30 {
31 }
32
MacabConditionConstant(const bool bValue)33 MacabConditionConstant::MacabConditionConstant(const bool bValue)
34 : MacabCondition(),
35 m_bValue(bValue)
36 {
37 }
38
isAlwaysTrue() const39 bool MacabConditionConstant::isAlwaysTrue() const
40 {
41 return m_bValue;
42 }
43
isAlwaysFalse() const44 bool MacabConditionConstant::isAlwaysFalse() const
45 {
46 return !m_bValue;
47 }
48
eval(const MacabRecord *) const49 bool MacabConditionConstant::eval(const MacabRecord *) const
50 {
51 return m_bValue;
52 }
53
MacabConditionColumn(const MacabHeader * header,std::u16string_view sColumnName)54 MacabConditionColumn::MacabConditionColumn(
55 const MacabHeader *header, std::u16string_view sColumnName)
56 : MacabCondition(),
57 m_nFieldNumber(header->getColumnNumber(sColumnName))
58 {
59 }
60
isAlwaysTrue() const61 bool MacabConditionColumn::isAlwaysTrue() const
62 {
63 // Sometimes true, sometimes false
64 return false;
65 }
66
isAlwaysFalse() const67 bool MacabConditionColumn::isAlwaysFalse() const
68 {
69 // Sometimes true, sometimes false
70 return false;
71 }
72
MacabConditionNull(const MacabHeader * header,std::u16string_view sColumnName)73 MacabConditionNull::MacabConditionNull(const MacabHeader *header, std::u16string_view sColumnName)
74 : MacabConditionColumn(header, sColumnName)
75 {
76 }
77
eval(const MacabRecord * aRecord) const78 bool MacabConditionNull::eval(const MacabRecord *aRecord) const
79 {
80 macabfield *aValue = aRecord->get(m_nFieldNumber);
81
82 if(aValue == nullptr)
83 return true;
84 else if(aValue->value == nullptr)
85 return true;
86 else
87 return false;
88 }
89
MacabConditionNotNull(const MacabHeader * header,std::u16string_view sColumnName)90 MacabConditionNotNull::MacabConditionNotNull(
91 const MacabHeader *header, std::u16string_view sColumnName)
92 : MacabConditionColumn(header, sColumnName)
93 {
94 }
95
eval(const MacabRecord * aRecord) const96 bool MacabConditionNotNull::eval(const MacabRecord *aRecord) const
97 {
98 macabfield *aValue = aRecord->get(m_nFieldNumber);
99
100 if(aValue == nullptr)
101 return false;
102 else if(aValue->value == nullptr)
103 return false;
104 else
105 return true;
106 }
107
MacabConditionCompare(const MacabHeader * header,std::u16string_view sColumnName,const OUString & sMatchString)108 MacabConditionCompare::MacabConditionCompare(const MacabHeader *header, std::u16string_view sColumnName, const OUString &sMatchString)
109 : MacabConditionColumn(header, sColumnName),
110 m_sMatchString(sMatchString)
111 {
112 }
113
MacabConditionEqual(const MacabHeader * header,std::u16string_view sColumnName,const OUString & sMatchString)114 MacabConditionEqual::MacabConditionEqual(const MacabHeader *header, std::u16string_view sColumnName, const OUString &sMatchString)
115 : MacabConditionCompare(header, sColumnName, sMatchString)
116 {
117 }
118
eval(const MacabRecord * aRecord) const119 bool MacabConditionEqual::eval(const MacabRecord *aRecord) const
120 {
121 macabfield *aValue = aRecord->get(m_nFieldNumber);
122
123 if(aValue == nullptr)
124 return false;
125
126 macabfield *aValue2 = MacabRecord::createMacabField(m_sMatchString,aValue->type);
127
128 if(aValue2 == nullptr)
129 return false;
130
131 sal_Int32 nReturn = MacabRecord::compareFields(aValue, aValue2);
132
133 delete aValue2;
134 return nReturn == 0;
135 }
136
MacabConditionDifferent(const MacabHeader * header,std::u16string_view sColumnName,const OUString & sMatchString)137 MacabConditionDifferent::MacabConditionDifferent(const MacabHeader *header, std::u16string_view sColumnName, const OUString &sMatchString)
138 : MacabConditionCompare(header, sColumnName, sMatchString)
139 {
140 }
141
eval(const MacabRecord * aRecord) const142 bool MacabConditionDifferent::eval(const MacabRecord *aRecord) const
143 {
144 macabfield *aValue = aRecord->get(m_nFieldNumber);
145
146 if(aValue == nullptr)
147 return false;
148
149 macabfield *aValue2 = MacabRecord::createMacabField(m_sMatchString,aValue->type);
150
151 if(aValue2 == nullptr)
152 return false;
153
154 sal_Int32 nReturn = MacabRecord::compareFields(aValue, aValue2);
155
156 delete aValue2;
157 return nReturn != 0;
158 }
159
MacabConditionSimilar(const MacabHeader * header,std::u16string_view sColumnName,const OUString & sMatchString)160 MacabConditionSimilar::MacabConditionSimilar(const MacabHeader *header, std::u16string_view sColumnName, const OUString &sMatchString)
161 : MacabConditionCompare(header, sColumnName, sMatchString)
162 {
163 }
164
eval(const MacabRecord * aRecord) const165 bool MacabConditionSimilar::eval(const MacabRecord *aRecord) const
166 {
167 macabfield *aValue = aRecord->get(m_nFieldNumber);
168
169 if(aValue == nullptr)
170 return false;
171
172 OUString sName = MacabRecord::fieldToString(aValue);
173
174 return match(m_sMatchString, sName, '\0');
175 }
176
MacabConditionBoolean(MacabCondition * pLeft,MacabCondition * pRight)177 MacabConditionBoolean::MacabConditionBoolean(MacabCondition *pLeft, MacabCondition *pRight)
178 : MacabCondition(),
179 m_pLeft(pLeft),
180 m_pRight(pRight)
181 {
182 }
183
~MacabConditionBoolean()184 MacabConditionBoolean::~MacabConditionBoolean()
185 {
186 delete m_pLeft;
187 delete m_pRight;
188 }
189
MacabConditionOr(MacabCondition * pLeft,MacabCondition * pRight)190 MacabConditionOr::MacabConditionOr(MacabCondition *pLeft, MacabCondition *pRight)
191 : MacabConditionBoolean(pLeft, pRight)
192 {
193 }
194
isAlwaysTrue() const195 bool MacabConditionOr::isAlwaysTrue() const
196 {
197 return m_pLeft->isAlwaysTrue() || m_pRight->isAlwaysTrue();
198 }
199
isAlwaysFalse() const200 bool MacabConditionOr::isAlwaysFalse() const
201 {
202 return m_pLeft->isAlwaysFalse() && m_pRight->isAlwaysFalse();
203 }
204
eval(const MacabRecord * aRecord) const205 bool MacabConditionOr::eval(const MacabRecord *aRecord) const
206 {
207 // We avoid evaluating terms as much as we can
208 if (m_pLeft->isAlwaysTrue() || m_pRight->isAlwaysTrue()) return true;
209 if (m_pLeft->isAlwaysFalse() && m_pRight->isAlwaysFalse()) return false;
210
211 if (m_pLeft->eval(aRecord)) return true;
212 if (m_pRight->eval(aRecord)) return true;
213
214 return false;
215 }
216
MacabConditionAnd(MacabCondition * pLeft,MacabCondition * pRight)217 MacabConditionAnd::MacabConditionAnd(MacabCondition *pLeft, MacabCondition *pRight)
218 : MacabConditionBoolean(pLeft, pRight)
219 {
220 }
221
isAlwaysTrue() const222 bool MacabConditionAnd::isAlwaysTrue() const
223 {
224 return m_pLeft->isAlwaysTrue() && m_pRight->isAlwaysTrue();
225 }
226
isAlwaysFalse() const227 bool MacabConditionAnd::isAlwaysFalse() const
228 {
229 return m_pLeft->isAlwaysFalse() || m_pRight->isAlwaysFalse();
230 }
231
eval(const MacabRecord * aRecord) const232 bool MacabConditionAnd::eval(const MacabRecord *aRecord) const
233 {
234 // We avoid evaluating terms as much as we can
235 if (m_pLeft->isAlwaysFalse() || m_pRight->isAlwaysFalse()) return false;
236 if (m_pLeft->isAlwaysTrue() && m_pRight->isAlwaysTrue()) return true;
237
238 if (!m_pLeft->eval(aRecord)) return false;
239 if (!m_pRight->eval(aRecord)) return false;
240
241 return true;
242 }
243
244 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
245