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| Provides various features related to the current date and time | |
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//----------------------------------------------------------------------------//
// //
// C l o c k //
// //
// Copyright (C) Herve Bitteur 2000-2009. All rights reserved. //
// This software is released under the GNU General Public License. //
// Please contact [email protected] to report bugs & suggestions. //
//----------------------------------------------------------------------------//
//
import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Date;
import java.util.Locale;
/**
* Class <code>Clock</code> provides various features related to the current
* date and time, as well as the elapsed time since the beginning of the
* application.
*
* @author Hervé Bitteur
* @version $Id: Clock.java,v 1.8 2009/03/03 19:45:52 hbitteur Exp $
*/
public class Clock
{
//~ Static fields/initializers ---------------------------------------------
/** To have a reference time */
private static long startTime = System.currentTimeMillis();
/** General date formatting */
private static DateFormat dateFormatter = DateFormat.getDateTimeInstance(
DateFormat.FULL,
DateFormat.FULL,
Locale.US);
/** General time formatting. Locale to be used, could be: //Locale.US;
//Locale.FRANCE; */
private static Locale locale = Locale.getDefault();
/** Corresponding number format */
private static NumberFormat nf = NumberFormat.getNumberInstance(locale);
/** Decimal format */
private static DecimalFormat timeFormatter = (DecimalFormat) nf;
static {
timeFormatter.applyPattern("000,000.00");
}
//~ Constructors -----------------------------------------------------------
//-------//
// Clock // To prevent instantiation
//-------//
private Clock ()
{
}
//~ Methods ----------------------------------------------------------------
//---------//
// getDate //
//---------//
/**
* Retrieves the values of current date and time of day, and formats a
* standard string,
*
* @return A standardized date + time string
*/
public static String getDate ()
{
return dateFormatter.format(new Date());
}
//------------//
// getElapsed //
//------------//
/**
* Retrieves the number of milliseconds since the reference start time, and
* formats a standardized string using seconds and milliseconds. NB: The
* start time is usually the time when this class was elaborated. It can
* also be later reset, via the 'reset' method.
*
* @return A standardized duration string
*/
public static String getElapsed ()
{
long delta = System.currentTimeMillis() - startTime;
return timeFormatter.format((double) delta / 1000);
}
//-----------//
// resetTime //
//-----------//
/**
* Resets the reference start value at the time this method is called.
*/
public static void resetTime ()
{
startTime = System.currentTimeMillis();
}
}
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