001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.search;
016    
017    import com.liferay.portal.kernel.cluster.Priority;
018    import com.liferay.portal.kernel.log.Log;
019    import com.liferay.portal.kernel.log.LogFactoryUtil;
020    import com.liferay.portal.kernel.security.pacl.DoPrivileged;
021    import com.liferay.portal.kernel.util.InstanceFactory;
022    import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
023    
024    /**
025     * @author Bruno Farache
026     * @author Carlos Sierra Andr??s
027     * @author Marcellus Tavares
028     */
029    @DoPrivileged
030    public class BaseSearchEngine implements SearchEngine {
031    
032            @Override
033            public BooleanClauseFactory getBooleanClauseFactory() {
034                    if (_booleanClauseFactory == null) {
035                            ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
036    
037                            String className =
038                                    "com.liferay.portal.search.generic.BooleanClauseFactoryImpl";
039    
040                            try {
041                                    _booleanClauseFactory =
042                                            (BooleanClauseFactory)InstanceFactory.newInstance(
043                                                    classLoader, className);
044                            }
045                            catch (Exception e) {
046                                    _log.fatal(
047                                            "Unable to locate appropriate BooleanClauseFactory", e);
048                            }
049                    }
050    
051                    return _booleanClauseFactory;
052            }
053    
054            @Override
055            public BooleanQueryFactory getBooleanQueryFactory() {
056                    if (_booleanQueryFactory != null) {
057                            return _booleanQueryFactory;
058                    }
059    
060                    ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
061    
062                    String className =
063                            "com.liferay.portal.search.lucene.BooleanQueryFactoryImpl";
064    
065                    if (!isLuceneBased()) {
066                            className =
067                                    "com.liferay.portal.search.generic.BooleanQueryFactoryImpl";
068                    }
069    
070                    try {
071                            _booleanQueryFactory =
072                                    (BooleanQueryFactory)InstanceFactory.newInstance(
073                                            classLoader, className);
074                    }
075                    catch (Exception e) {
076                            _log.fatal("Unable to locate appropriate BooleanQueryFactory", e);
077                    }
078    
079                    return _booleanQueryFactory;
080            }
081    
082            @Override
083            public Priority getClusteredWritePriority() {
084                    return _clusteredWritePriority;
085            }
086    
087            @Override
088            public IndexSearcher getIndexSearcher() {
089                    return _indexSearcher;
090            }
091    
092            @Override
093            public IndexWriter getIndexWriter() {
094                    return _indexWriter;
095            }
096    
097            @Override
098            public TermQueryFactory getTermQueryFactory() {
099                    if (_termQueryFactory != null) {
100                            return _termQueryFactory;
101                    }
102    
103                    ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
104    
105                    String className =
106                            "com.liferay.portal.search.lucene.TermQueryFactoryImpl";
107    
108                    if (!isLuceneBased()) {
109                            className =
110                                    "com.liferay.portal.search.generic.TermQueryFactoryImpl";
111                    }
112    
113                    try {
114                            _termQueryFactory =
115                                    (TermQueryFactory)InstanceFactory.newInstance(
116                                            classLoader, className);
117                    }
118                    catch (Exception e) {
119                            _log.fatal("Unable to locate appropriate BooleanQueryFactory", e);
120                    }
121    
122                    return _termQueryFactory;
123            }
124    
125            @Override
126            public TermRangeQueryFactory getTermRangeQueryFactory() {
127                    if (_termRangeQueryFactory != null) {
128                            return _termRangeQueryFactory;
129                    }
130    
131                    ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
132    
133                    String className =
134                            "com.liferay.portal.search.lucene.TermRangeQueryFactoryImpl";
135    
136                    if (!isLuceneBased()) {
137                            className =
138                                    "com.liferay.portal.search.generic." +
139                                            "TermRangeQueryFactoryImpl";
140                    }
141    
142                    try {
143                            _termRangeQueryFactory =
144                                    (TermRangeQueryFactory)InstanceFactory.newInstance(
145                                            classLoader, className);
146                    }
147                    catch (Exception e) {
148                            _log.fatal("Unable to locate appropriate BooleanQueryFactory", e);
149                    }
150    
151                    return _termRangeQueryFactory;
152            }
153    
154            @Override
155            public String getVendor() {
156                    return _vendor;
157            }
158    
159            @Override
160            public boolean isClusteredWrite() {
161                    return _clusteredWrite;
162            }
163    
164            @Override
165            public boolean isLuceneBased() {
166                    return _luceneBased;
167            }
168    
169            public void setBooleanClauseFactory(
170                    BooleanClauseFactory booleanClauseFactory) {
171    
172                    _booleanClauseFactory = booleanClauseFactory;
173            }
174    
175            public void setBooleanQueryFactory(
176                    BooleanQueryFactory booleanQueryFactory) {
177    
178                    _booleanQueryFactory = booleanQueryFactory;
179            }
180    
181            public void setClusteredWrite(boolean clusteredWrite) {
182                    _clusteredWrite = clusteredWrite;
183            }
184    
185            public void setClusteredWritePriority(Priority clusteredWritePriority) {
186                    _clusteredWritePriority = clusteredWritePriority;
187            }
188    
189            public void setIndexSearcher(IndexSearcher indexSearcher) {
190                    _indexSearcher = indexSearcher;
191            }
192    
193            public void setIndexWriter(IndexWriter indexWriter) {
194                    _indexWriter = indexWriter;
195            }
196    
197            public void setLuceneBased(boolean luceneBased) {
198                    _luceneBased = luceneBased;
199            }
200    
201            public void setTermQueryFactory(TermQueryFactory termQueryFactory) {
202                    _termQueryFactory = termQueryFactory;
203            }
204    
205            public void setTermRangeQueryFactory(
206                    TermRangeQueryFactory termRangeQueryFactory) {
207    
208                    _termRangeQueryFactory = termRangeQueryFactory;
209            }
210    
211            public void setVendor(String vendor) {
212                    _vendor = vendor;
213            }
214    
215            private static Log _log = LogFactoryUtil.getLog(BaseSearchEngine.class);
216    
217            private BooleanClauseFactory _booleanClauseFactory;
218            private BooleanQueryFactory _booleanQueryFactory;
219            private boolean _clusteredWrite;
220            private Priority _clusteredWritePriority;
221            private IndexSearcher _indexSearcher = new DummyIndexSearcher();
222            private IndexWriter _indexWriter = new DummyIndexWriter();
223            private boolean _luceneBased;
224            private TermQueryFactory _termQueryFactory;
225            private TermRangeQueryFactory _termRangeQueryFactory;
226            private String _vendor;
227    
228    }