org.agatom.springatom.webmvc.converters.IntervalToStringConverter.java Source code

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Here is the source code for org.agatom.springatom.webmvc.converters.IntervalToStringConverter.java

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/**************************************************************************************************
 * This file is part of [SpringAtom] Copyright [kornicameister@gmail.com][2013]                   *
 *                                                                                                *
 * [SpringAtom] 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.                                                            *
 *                                                                                                *
 * [SpringAtom] 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 [SpringAtom].  If not, see <http://www.gnu.org/licenses/gpl.html>.                  *
 **************************************************************************************************/

package org.agatom.springatom.webmvc.converters;

import com.google.common.base.Preconditions;
import org.joda.time.Interval;
import org.joda.time.PeriodType;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.core.convert.converter.ConditionalConverter;
import org.springframework.core.convert.converter.Converter;

/**
 * <p>IntervalToStringConverter class.</p>
 *
 * @author kornicameister
 * @version 0.0.1
 * @since 0.0.1
 */
public class IntervalToStringConverter implements Converter<Interval, String>, ConditionalConverter {

    /** {@inheritDoc} */
    @Override
    public boolean matches(final TypeDescriptor sourceType, final TypeDescriptor targetType) {
        return sourceType.getType().isAssignableFrom(Interval.class)
                && targetType.getType().isAssignableFrom(String.class);
    }

    /** {@inheritDoc} */
    @Override
    public String convert(final Interval source) {
        Preconditions.checkNotNull(source);
        return String.valueOf(source.toPeriod(PeriodType.minutes()).getMinutes());
    }
}