com.arcusx.chrono.SimpleMonthSequenceFormat Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of arcusx-chrono Show documentation

${project.artifactId}

The newest version!

/**
 * This software is written by arcus(x) GmbH and subject 
 * to a contract between arcus(x) and its customer.
 *
 * This software stays property of arcus(x) unless differing
 * arrangements between arcus(x) and its customer apply.
 *
 * arcus(x) GmbH
 * Bergiusstrasse 27
 * D-22765 Hamburg, Germany
 * 
 * Tel.: +49 (0)40.333 102 92  
 * http://www.arcusx.com
 * mailto:[email protected]
 */

package com.arcusx.chrono;


/**
 * This a very simple month based timespan format.
 * 
 * Created 30.05.2003, 13:15:23.
 * 
 * @author conni
 * @version $Id$
 */
public class SimpleMonthSequenceFormat extends MonthSequenceFormat
{

	public static final SimpleMonthSequenceFormat INSTANCE = new SimpleMonthSequenceFormat();

	public SimpleMonthSequenceFormat()
	{
	}

	public MonthSequence parse(String s)
	{
		String[] parts = s.split("-");
		if (parts.length != 2)
			throw new IllegalArgumentException("Not of the form yyyy/mm-yyyy/mm");
		Month start = SimpleMonthFormat.INSTANCE.parse(parts[0]);
		Month end = SimpleMonthFormat.INSTANCE.parse(parts[1]);
		return MonthSequence.valueOf(start, end);
	}

	public void format(MonthSequence period, StringBuffer buf)
	{
		SimpleMonthFormat monthFormat = SimpleMonthFormat.INSTANCE;

		MonthSequence months = (MonthSequence) period;

		// format first month into buffer
		monthFormat.format(months.getFirstMonth(), buf);

		// if is "real" period (longer than one month),
		// so format last month into, too
		if (!months.getFirstMonth().equals(months.getLastMonth()))
		{
			buf.append('-');
			monthFormat.format(months.getLastMonth(), buf);
		}
	}
}