org.mulima.internal.freedb.FreeDbImport.java Source code

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Here is the source code for org.mulima.internal.freedb.FreeDbImport.java

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/*  
 *  Copyright (C) 2011  Andrew Oberstar.  All rights reserved.
 *  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.mulima.internal.freedb;

import java.util.List;

import org.mulima.api.freedb.FreeDbDao;
import org.mulima.api.meta.Disc;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * Imports FreeDB information into database from TAR.
 * @author Andrew Oberstar
 * @since 0.1.0
 */
public class FreeDbImport implements Runnable {
    private final Logger logger = LoggerFactory.getLogger(getClass());
    private FreeDbDao jdbcDao;
    private FreeDbDao tarDao;

    /**
     * Initializes the app.
     */
    public void init() {
        AbstractApplicationContext context = new ClassPathXmlApplicationContext("importContext.xml");
        context.registerShutdownHook();
        jdbcDao = context.getBean("jdbcDao", FreeDbDao.class);
        tarDao = context.getBean("tarDao", FreeDbDao.class);
    }

    @Override
    public void run() {
        int startNum = 0;
        int numToRead = 5000;
        int totalRead = 0;

        List<Disc> discs = tarDao.getAllDiscsFromOffset(startNum, numToRead);
        while (discs.size() > 0) {
            startNum += numToRead;
            jdbcDao.addAllDiscs(discs);
            totalRead += discs.size();
            logger.info("Total discs imported: " + totalRead);
            discs = tarDao.getAllDiscsFromOffset(startNum, numToRead);
        }
    }

    /**
     * Executes the app.
     * @param args the arguments
     */
    public static void main(String[] args) {
        FreeDbImport driver = new FreeDbImport();
        driver.init();
        driver.run();
    }
}