net.ion.craken.node.problem.distribute.LuceneSettings.java Source code

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Here is the source code for net.ion.craken.node.problem.distribute.LuceneSettings.java

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2009 Red Hat Inc. and/or its affiliates and other
 * contributors as indicated by the @author tags. All rights reserved.
 * See the copyright.txt in the distribution for a full listing of
 * individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package net.ion.craken.node.problem.distribute;

import java.io.IOException;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.core.SimpleAnalyzer;
import org.apache.lucene.index.CorruptIndexException;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.LogByteSizeMergePolicy;
import org.apache.lucene.index.LogMergePolicy;
import org.apache.lucene.index.MergeScheduler;
import org.apache.lucene.index.SerialMergeScheduler;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.LockObtainFailedException;
import org.apache.lucene.util.Version;

public class LuceneSettings {

    public static final Version LUCENE_VERSION = Version.LUCENE_36;

    public static final Analyzer analyzer = new SimpleAnalyzer(LUCENE_VERSION);

    private static final MergeScheduler mergeScheduler = new SerialMergeScheduler();

    public static IndexWriter openWriter(Directory directory, int maxMergeDocs, boolean useSerialMerger)
            throws CorruptIndexException, LockObtainFailedException, IOException {
        IndexWriterConfig indexWriterConfig = new IndexWriterConfig(LUCENE_VERSION, analyzer);
        if (useSerialMerger) {
            indexWriterConfig.setMergeScheduler(mergeScheduler);
        }
        LogMergePolicy mergePolicy = new LogByteSizeMergePolicy();
        mergePolicy.setMaxMergeDocs(maxMergeDocs);
        indexWriterConfig.setMergePolicy(mergePolicy);
        return new IndexWriter(directory, indexWriterConfig);
    }

    public static IndexWriter openWriter(Directory directory, int maxMergeDocs)
            throws CorruptIndexException, LockObtainFailedException, IOException {
        return openWriter(directory, maxMergeDocs, false);
    }

}