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.search.lucene;
016    
017    import java.io.IOException;
018    
019    import java.util.List;
020    
021    import org.apache.lucene.index.IndexReader;
022    import org.apache.lucene.index.Term;
023    
024    /**
025     * @author Michael C. Han
026     */
027    public class SpellCheckerUtil {
028    
029            public static boolean isValidWord(
030                            String localizedFieldName, String word,
031                            List<IndexReader> indexReaders)
032                    throws IOException {
033    
034                    if (indexReaders.isEmpty()) {
035                            return false;
036                    }
037    
038                    Term term = new Term(localizedFieldName, word);
039    
040                    for (IndexReader indexReader : indexReaders) {
041                            if (indexReader.docFreq(term) > 0) {
042                                    return true;
043                            }
044                    }
045    
046                    return false;
047            }
048    
049    }