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    /**
018     * @author Michael C. Han
019     */
020    public class QuerySuggestionHitsProcessor implements HitsProcessor {
021    
022            public boolean process(SearchContext searchContext, Hits hits)
023                    throws SearchException {
024    
025                    QueryConfig queryConfig = searchContext.getQueryConfig();
026    
027                    if (!queryConfig.isQuerySuggestionEnabled()) {
028                            return true;
029                    }
030    
031                    String[] querySuggestions = SearchEngineUtil.suggestKeywordQueries(
032                            searchContext, _maxSuggestions);
033    
034                    hits.setQuerySuggestions(querySuggestions);
035    
036                    return true;
037            }
038    
039            public void setMaxSuggestions(int maxSuggestions) {
040                    _maxSuggestions = maxSuggestions;
041            }
042    
043            private int _maxSuggestions = 5;
044    
045    }