001    /**
002     * Copyright (c) 2000-present 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.search;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.model.BaseModel;
020    import com.liferay.portal.kernel.search.IndexWriterHelperUtil;
021    import com.liferay.portal.kernel.search.Indexable;
022    import com.liferay.portal.kernel.search.IndexableType;
023    import com.liferay.portal.kernel.search.Indexer;
024    import com.liferay.portal.kernel.search.IndexerRegistryUtil;
025    import com.liferay.portal.kernel.security.auth.CompanyThreadLocal;
026    import com.liferay.portal.kernel.service.ServiceContext;
027    import com.liferay.portal.spring.aop.AnnotationChainableMethodAdvice;
028    
029    import java.lang.annotation.Annotation;
030    import java.lang.reflect.Method;
031    
032    import org.aopalliance.intercept.MethodInvocation;
033    
034    /**
035     * @author Shuyang Zhou
036     */
037    public class IndexableAdvice
038            extends AnnotationChainableMethodAdvice<Indexable> {
039    
040            @Override
041            public void afterReturning(MethodInvocation methodInvocation, Object result)
042                    throws Throwable {
043    
044                    if (result == null) {
045                            return;
046                    }
047    
048                    if (IndexWriterHelperUtil.isIndexReadOnly() ||
049                            CompanyThreadLocal.isDeleteInProcess()) {
050    
051                            return;
052                    }
053    
054                    Indexable indexable = findAnnotation(methodInvocation);
055    
056                    if (indexable == _nullIndexable) {
057                            return;
058                    }
059    
060                    Method method = methodInvocation.getMethod();
061    
062                    Class<?> returnType = method.getReturnType();
063    
064                    if (!BaseModel.class.isAssignableFrom(returnType)) {
065                            if (_log.isWarnEnabled()) {
066                                    _log.warn(
067                                            methodInvocation + " does not have a valid return type");
068                            }
069    
070                            return;
071                    }
072    
073                    Indexer<Object> indexer = IndexerRegistryUtil.getIndexer(
074                            returnType.getName());
075    
076                    if (indexer == null) {
077                            serviceBeanAopCacheManager.removeMethodInterceptor(
078                                    methodInvocation, this);
079    
080                            return;
081                    }
082    
083                    Object[] arguments = methodInvocation.getArguments();
084    
085                    for (int i = arguments.length - 1; i >= 0; i--) {
086                            if (arguments[i] instanceof ServiceContext) {
087                                    ServiceContext serviceContext = (ServiceContext)arguments[i];
088    
089                                    if (serviceContext.isIndexingEnabled()) {
090                                            break;
091                                    }
092    
093                                    return;
094                            }
095                    }
096    
097                    if (indexable.type() == IndexableType.DELETE) {
098                            indexer.delete(result);
099                    }
100                    else {
101                            indexer.reindex(result);
102                    }
103            }
104    
105            @Override
106            public Indexable getNullAnnotation() {
107                    return _nullIndexable;
108            }
109    
110            private static final Log _log = LogFactoryUtil.getLog(
111                    IndexableAdvice.class);
112    
113            private static final Indexable _nullIndexable = new Indexable() {
114    
115                    @Override
116                    public Class<? extends Annotation> annotationType() {
117                            return Indexable.class;
118                    }
119    
120                    @Override
121                    public IndexableType type() {
122                            return null;
123                    }
124    
125            };
126    
127    }