fr.gael.dhus.database.util.RestoreDatabase.java Source code

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Here is the source code for fr.gael.dhus.database.util.RestoreDatabase.java

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/*
 * Data Hub Service (DHuS) - For Space data distribution.
 * Copyright (C) 2013,2014,2015 GAEL Systems
 *
 * This file is part of DHuS software sources.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package fr.gael.dhus.database.util;

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

import org.apache.commons.io.FileUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * restore database must be exectuted once the dhus system is stopped to 
 * restore the database with an older dumped version.
 *
 */
public class RestoreDatabase {
    private static Log logger = LogFactory.getLog(RestoreDatabase.class);

    /**
     * Hide utility class constructor
     */
    private RestoreDatabase() {

    }

    /**
     * @param args
     * @throws IllegalAccessException 
     * @throws IOException 
     */
    public static void main(String[] args) throws IllegalAccessException, IOException {
        if (args.length != 2) {
            throw new IllegalArgumentException(RestoreDatabase.class.getCanonicalName()
                    + ": Wrong arguments <source path> <destination path>.");
        }

        File dump = new File(args[0]);
        File db = new File(args[1]);

        logger.info("Restoring " + dump.getPath() + " into " + db.getPath() + ".");

        if (!db.exists())
            throw new IllegalArgumentException(RestoreDatabase.class.getCanonicalName()
                    + ": Input database path not found (\"" + db.getPath() + "\").");

        if (!dump.exists())
            throw new IllegalArgumentException(RestoreDatabase.class.getCanonicalName()
                    + ": Input database dump path not found (\"" + db.getPath() + "\").");

        FileUtils.deleteDirectory(db);
        FileUtils.copyDirectory(dump, db);

        logger.info("Dump properly restored, please restart system now.");
    }

}