de.peterspan.csv2db.converter.location.LocationConverter.java Source code

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Here is the source code for de.peterspan.csv2db.converter.location.LocationConverter.java

Source

/**
 *  Copyright 2012-2013 Frederik Hahne, Christoph Stiehm
 *
 *    This file is part of csv2db.
 *
 *  csv2db 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.
 *
 *  csv2db 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 csv2db.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.peterspan.csv2db.converter.location;

import java.io.File;
import java.util.List;

import javax.persistence.EntityTransaction;

import org.hibernate.HibernateException;
import org.springframework.stereotype.Component;

import de.peterspan.csv2db.converter.AbstractConverter;
import de.peterspan.csv2db.domain.entities.Location;

@Component
public class LocationConverter extends AbstractConverter {

    public LocationConverter() {
        super();
    };

    public LocationConverter(File inputFile) {
        super(inputFile);
    }

    public void readLine(String[] line) {
        LocationDataLine datasetLine = new LocationDataLine(line);

        Location loc = datasetLine.getLocation();
        entityManager.persist(loc);
    }

    @Override
    protected Void doInBackground() throws Exception {
        EntityTransaction tx = null;
        try {
            tx = entityManager.getTransaction();
            tx.begin();
            List<String[]> allLines = readFile();

            double increment = 100.0 / allLines.size();
            double progress = 0.0;
            // Removing the header
            // Remove the empty line
            for (String[] line : allLines) {
                progress = progress + increment;
                setProgress((int) Math.round(progress));
                if (line[0].equals("Standort-Nr.")) {
                    continue;
                }
                if (line[0].equals("")) {
                    continue;
                }
                readLine(line);

            }

            entityManager.flush();
            tx.commit();
        } catch (HibernateException he) {
            if (tx != null) {
                tx.rollback();
            }
        }

        return null;
    }

}