Ptidej-v5.2-master/Ptidej Reporting Tests/src/net/sf/jasperreports/engine/util/JRDateLocaleConverter.java
/*
 * ============================================================================
 * GNU Lesser General Public License
 * ============================================================================
 *
 * JasperReports - Free Java report-generating library.
 * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
 * 
 * This library 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 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
 * 
 * JasperSoft Corporation
 * 303 Second Street, Suite 450 North
 * San Francisco, CA 94107
 * http://www.jaspersoft.com
 */

package net.sf.jasperreports.engine.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Locale;
import java.util.TimeZone;

import org.apache.commons.beanutils.locale.converters.DateLocaleConverter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * A Converter class dedicated for the java.util.Date type.
 * <p/>
 * In order to obtain a java.util.Date object from a given String, a JRJavaUtilDateConverter
 * object should be instantiated and it's inherited convert() method should be called. The 
 * final result is provided by the JRJavaUtilDateConverter's parse() invoked method.
 *  <p/>
 * If if any of constructor arguments is null, default values will be provided.
 *  <p/>
 * @see org.apache.commons.beanutils.locale.converters.DateLocaleConverter
 * @author szaharia
 * @version $Id: JRDateLocaleConverter.java,v 1.1 2008/09/29 16:20:17 guehene Exp $
 */

public class JRDateLocaleConverter extends DateLocaleConverter 
{

	private static Log log = LogFactory.getLog(DateLocaleConverter.class);
	
	// holds the timezone's ID
	private TimeZone timeZone = null;


	/**
	 *
	 */
	public JRDateLocaleConverter(TimeZone timeZone) 
	{
		super();

		this.timeZone = timeZone;
	}

	/**
	 *
	 */
	protected Object parse(Object value, String pattern) throws ParseException 
	{
		SimpleDateFormat formatter = getFormatter(pattern, this.locale);
		if (pattern != null)
		{
			if (this.locPattern) {
				formatter.applyLocalizedPattern(pattern);
			}
			else {
				formatter.applyPattern(pattern);
			}
		}
		return formatter.parse((String) value);
	}

	/**
	 *
	 */
	private SimpleDateFormat getFormatter(String pattern, Locale locale) 
	{
		if(pattern == null) {
			pattern = this.locPattern ? 
				new SimpleDateFormat().toLocalizedPattern() : new SimpleDateFormat().toPattern();
			log.warn("Null pattern was provided, defaulting to: " + pattern);
		}
		SimpleDateFormat format = new SimpleDateFormat(pattern, locale);
		if(this.timeZone != null)
			format.setTimeZone(this.timeZone);
		format.setLenient(isLenient());
		return format;
	}

}
