Test Lucene deleteAll() v3.5.0

.classpath

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
	<classpathentry kind="src" path="src"/>
	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
	<classpathentry kind="lib" path="lib/commons-io.jar"/>
	<classpathentry kind="lib" path="lib/lucene-core-3.5.0.jar"/>
	<classpathentry kind="output" path="bin"/>
</classpath>

TestLuceneV350.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library 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 library 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.
 */

package com.liferay.test;

import java.io.File;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.Field.Index;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;

/**
 * Uses lucene-3.5.0.
 *<p>
 * Dependencies: See the .classpath file
 *<p>
 * @author Tibor Lipusz, Senior Software Engineer @ TS | Liferay, Inc.
 */
public class TestLuceneV350 {

	public static void main(String[] args) throws Exception {
		try {	
			initIndex();

			// -- Index docs --

			Analyzer analyzer = new StandardAnalyzer(_VERSION);

			Document document = new Document();

			Field field = new Field(
				"field", "value", Field.Store.YES, Index.ANALYZED);

			document.add(field);

			addDocument(document, analyzer);

			document = new Document();

			field = new Field(
				"field", "value2", Field.Store.YES, Index.ANALYZED);

			document.add(field);

			addDocument(document, analyzer);
		}
		finally {
			closeIndex();
		}
	}

	protected static void addDocument(
			Document document, Analyzer analyzer)
		throws Exception {

		checkIndex();

		_indexWriter.addDocument(document, analyzer);

		_indexWriter.commit();
	}

	protected static void checkIndex() throws Exception {
		if (_indexWriter == null) {
			initIndex();
		}
	}

	protected static void closeIndex() throws Exception {
		if (_indexWriter == null) {
			return;
		}

		_indexWriter.deleteAll();

		_indexWriter.close();
	}

	protected static void initIndex() throws Exception {
		_indexDirectory = FSDirectory.open(new File("index"));

		IndexWriterConfig config =
			new IndexWriterConfig(
				_VERSION, new StandardAnalyzer(_VERSION));

		_indexWriter = new IndexWriter(_indexDirectory, config);
	}

	private static Directory _indexDirectory;
	private static IndexWriter _indexWriter;

	private static final Version _VERSION = Version.LUCENE_35;

}