LocaleConverter.java

/*
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This 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 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.xwiki.properties.internal.converter;

import java.lang.reflect.Type;
import java.util.Locale;

import javax.inject.Singleton;

import org.apache.commons.lang3.LocaleUtils;
import org.xwiki.component.annotation.Component;
import org.xwiki.properties.converter.AbstractConverter;

/**
 * Converter that converts a value into an {@link Locale} object.
 *
 * @version $Id: 536f587ec5972905ac204f1bddeb8e58779c7a78 $
 * @since 5.2M1
 */
@Component
@Singleton
public class LocaleConverter extends AbstractConverter<Locale>
{
    @Override
    protected Locale convertToType(Type type, Object value)
    {
        Locale locale = null;
        if (value != null) {
            String valueString = value.toString();
            if (valueString.length() == 0) {
                locale = Locale.ROOT;
            } else {
                locale = LocaleUtils.toLocale(valueString);
            }
        }

        return locale;
    }
}