com.vmware.demo.sgf.lucene.LuceneIndexBuilder.java Source code

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Here is the source code for com.vmware.demo.sgf.lucene.LuceneIndexBuilder.java

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/*
 * Copyright 2012 VMWare.
 *
 * Licensed 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.
 */
package com.vmware.demo.sgf.lucene;

import java.io.File;
import java.io.IOException;
import java.util.UUID;

import org.apache.commons.io.FileUtils;

import com.vmware.demo.sgf.lucene.impl.LuceneGemFireRepositoryImpl;

/**
 * Create a Lucene index with a unique index directory.
 * 
 * @author Lyndon Adams
 *
 */
public class LuceneIndexBuilder {

    /**
     * Create the index directory also remove the write.lock file if it exists.
     * 
     * @throws IOException
     */
    private static String createIndexDirectory(final String indexDirectory) throws IOException {
        String dirPath = indexDirectory + "-" + UUID.randomUUID();
        FileUtils.forceMkdir(new File(dirPath));
        FileUtils.deleteQuietly(new File(dirPath + "/write.lock"));
        return dirPath;
    }

    public static LuceneGemFireRepository create(final String indexDirectory) {
        LuceneGemFireRepositoryImpl impl = null;
        try {
            String targetDir = createIndexDirectory(indexDirectory);
            impl = new LuceneGemFireRepositoryImpl(targetDir);
        } catch (IOException e) {

        }
        return impl;
    }

}