ch.entwine.weblounge.contentrepository.impl.index.elasticsearch.ElasticSearchUtils.java Source code

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Here is the source code for ch.entwine.weblounge.contentrepository.impl.index.elasticsearch.ElasticSearchUtils.java

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/*
 *  Weblounge: Web Content Management System
 *  Copyright (c) 2012 The Weblounge Team
 *  http://entwinemedia.com/weblounge
 *
 *  This program 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
 *  of the License, or (at your option) any later version.
 *
 *  This program 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 program; if not, write to the Free Software Foundation
 *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
package ch.entwine.weblounge.contentrepository.impl.index.elasticsearch;

import ch.entwine.weblounge.common.url.PathUtils;
import ch.entwine.weblounge.common.url.UrlUtils;

import org.apache.commons.io.FileUtils;

import java.io.File;
import java.io.IOException;

/**
 * Utilities to ease dealing with Elastic Search.
 */
public final class ElasticSearchUtils {

    /**
     * Private constructor to make sure this class is used as a utility class.
     */
    private ElasticSearchUtils() {
    }

    /**
     * Creates an elastic search index configuration inside the given directory by
     * loading the relevant configuration files from the bundle. The final
     * location will be <code>homeDirectory/etc/index</code>.
     * 
     * @param homeDirectory
     *          the configuration directory
     * @throws IOException
     *           if creating the configuration fails
     */
    public static void createIndexConfigurationAt(File homeDirectory) throws IOException {

        // Load the index configuration and move it into place
        File configurationRoot = new File(PathUtils.concat(homeDirectory.getAbsolutePath(), "etc", "index"));
        FileUtils.deleteQuietly(configurationRoot);
        if (!configurationRoot.mkdirs())
            throw new IOException("Error creating " + configurationRoot);

        String[] files = new String[] { "default-mapping.json", "file-mapping.json", "image-mapping.json",
                "movie-mapping.json", "names.txt", "page-mapping.json", "settings.yml", "version-mapping.json" };

        for (String file : files) {
            String bundleLocation = UrlUtils.concat("/elasticsearch", file);
            File fileLocation = new File(configurationRoot, file);
            FileUtils.copyInputStreamToFile(ElasticSearchUtils.class.getResourceAsStream(bundleLocation),
                    fileLocation);
        }

    }

}