ca.sqlpower.dao.session.LocaleConverter.java Source code

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Here is the source code for ca.sqlpower.dao.session.LocaleConverter.java

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/*
 * Copyright (c) 2011, SQL Power Group Inc.
 *
 * This file is part of SQL Power Library.
 *
 * SQL Power Library 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.
 *
 * SQL Power Library 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 ca.sqlpower.dao.session;

import java.util.Locale;

import org.apache.commons.beanutils.ConversionException;

public class LocaleConverter implements BidirectionalConverter<String, Locale> {

    private static final String SEPARATOR = "-";

    @Override
    public String convertToSimpleType(Locale convertFrom, Object... additionalInfo) {
        return convertFrom.getLanguage() + SEPARATOR + convertFrom.getCountry() + SEPARATOR
                + convertFrom.getVariant();
    }

    @Override
    public Locale convertToComplexType(String convertFrom) throws ConversionException {
        String[] split = convertFrom.split(SEPARATOR);
        if (split.length == 0 || split[0].length() == 0)
            throw new ConversionException("All locales must have a language");
        if (split.length == 1 || split[1].length() == 0)
            return new Locale(split[0]);
        if (split.length == 2 || split[2].length() == 0)
            return new Locale(split[0], split[1]);
        return new Locale(split[0], split[1], split[2]);
    }

}