net.solarnetwork.util.JodaDurationEditor.java Source code

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Here is the source code for net.solarnetwork.util.JodaDurationEditor.java

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/* ==================================================================
 * JodaDurationFormatEditor.java - May 11, 2011 4:40:56 PM
 * 
 * Copyright 2007-2011 SolarNetwork.net Dev Team
 * 
 * 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 2 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, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
 * 02111-1307 USA
 * ==================================================================
 * $Id$
 * ==================================================================
 */

package net.solarnetwork.util;

import java.beans.PropertyEditorSupport;

import org.joda.time.Duration;
import org.joda.time.ReadableDuration;

/**
 * PropertyEditor for Joda Time's Duration objects.
 * 
 * <p>This class has been designed with {@link CloningPropertyEditorRegistrar}
 * in mind, so that one instance of a {@link JodaDurationEditor} can be shared
 * between multiple threads to parse or format Joda date objects.</p>
 * 
 * @author matt
 * @version $Revision$
 */
public class JodaDurationEditor extends PropertyEditorSupport implements Cloneable {

    /**
     * Default constructor.
     */
    public JodaDurationEditor() {
        super();
    }

    @Override
    public String getAsText() {
        Object val = getValue();
        if (val == null) {
            return null;
        }
        if (val instanceof ReadableDuration) {
            return val.toString();
        }
        throw new IllegalArgumentException("Unsupported duration object [" + val.getClass() + "]: " + val);
    }

    @Override
    public void setAsText(String text) throws IllegalArgumentException {
        try {
            Long ms = Long.valueOf(text);
            setValue(new Duration(ms));
        } catch (NumberFormatException e) {
            throw new IllegalArgumentException("Not a valid ms duration");
        }
    }

    @Override
    public Object clone() {
        try {
            return super.clone();
        } catch (CloneNotSupportedException e) {
            // should never get here
            throw new RuntimeException(e);
        }
    }

}