/* ==================================================================
* JodaPeriodFormatEditor.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.Period;
import org.joda.time.ReadablePeriod;
import org.joda.time.format.ISOPeriodFormat;
import org.joda.time.format.PeriodFormatter;
/**
* PropertyEditor using Joda Time's PeriodFormatter for thread-safe date
* parsing and formatting.
*
* <p>This class has been designed with {@link CloningPropertyEditorRegistrar}
* in mind, so that one instance of a {@link JodaPeriodFormatEditor} can be shared
* between multiple threads to parse or format Joda date objects.</p>
*
* @author matt
* @version $Revision$
*/
public class JodaPeriodFormatEditor extends PropertyEditorSupport
implements Cloneable {
private PeriodFormatter[] periodFormatters = null;
/**
* Default constructor.
*/
public JodaPeriodFormatEditor() {
super();
periodFormatters = new PeriodFormatter[]{ISOPeriodFormat.standard()};
}
@Override
public String getAsText() {
Object val = getValue();
if ( val == null ) {
return null;
}
PeriodFormatter format = this.periodFormatters[0];
if ( val instanceof ReadablePeriod ) {
return format.print((ReadablePeriod)val);
}
throw new IllegalArgumentException("Unsupported period object ["
+val.getClass() +"]: " +val);
}
@Override
public void setAsText(String text) throws IllegalArgumentException {
IllegalArgumentException iae = null;
// try patterns one at a time, if all fail to parse then throw exception
for ( PeriodFormatter pf : this.periodFormatters ) {
try {
Period p = pf.parsePeriod(text);
setValue(p);
iae = null;
break;
} catch ( IllegalArgumentException e ) {
iae = e;
}
}
if ( iae != null ) {
throw iae;
}
}
@Override
public Object clone() {
try {
return super.clone();
} catch ( CloneNotSupportedException e ) {
// should never get here
throw new RuntimeException(e);
}
}
}