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Lucene example source code file (TestIndexWriterLockRelease.java)

This example Lucene source code file (TestIndexWriterLockRelease.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lucene tags/keywords

directory, exception, file, filenotfoundexception, filenotfoundexception, indexwriter, indexwriterconfig, indexwriterconfig, io, ioexception, ioexception, lucenetestcase, override, standardanalyzer, standardanalyzer

The Lucene TestIndexWriterLockRelease.java source code

package org.apache.lucene.index;

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.util._TestUtil;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig.OpenMode;
import org.apache.lucene.store.Directory;

/**
 * This tests the patch for issue #LUCENE-715 (IndexWriter does not
 * release its write lock when trying to open an index which does not yet
 * exist).
 */

public class TestIndexWriterLockRelease extends LuceneTestCase {
    private java.io.File __test_dir;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        if (this.__test_dir == null) {
            this.__test_dir = _TestUtil.getTempDir("testIndexWriter");

            if (this.__test_dir.exists()) {
                throw new IOException("test directory \"" + this.__test_dir.getPath() + "\" already exists (please remove by hand)");
            }

            if (!this.__test_dir.mkdirs()
                && !this.__test_dir.isDirectory()) {
                throw new IOException("unable to create test directory \"" + this.__test_dir.getPath() + "\"");
            }
        }
    }

    @Override
    public void tearDown() throws Exception {
        if (this.__test_dir != null) {
            File[] files = this.__test_dir.listFiles();

            for (int i = 0;
                i < files.length;
                ++i) {
                if (!files[i].delete()) {
                    throw new IOException("unable to remove file in test directory \"" + this.__test_dir.getPath() + "\" (please remove by hand)");
                }
            }

            if (!this.__test_dir.delete()) {
                throw new IOException("unable to remove test directory \"" + this.__test_dir.getPath() + "\" (please remove by hand)");
            }
        }
        super.tearDown();
    }

    public void testIndexWriterLockRelease() throws IOException {
        Directory dir = newFSDirectory(this.__test_dir);
        try {
          new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT,
              new StandardAnalyzer(TEST_VERSION_CURRENT))
          .setOpenMode(OpenMode.APPEND));
        } catch (FileNotFoundException e) {
            try {
              new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT,
                  new StandardAnalyzer(TEST_VERSION_CURRENT))
              .setOpenMode(OpenMode.APPEND));
            } catch (FileNotFoundException e1) {
            }
        } finally {
          dir.close();
        }
    }
}

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