Mega Code Archive
Date Utils
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/*
** Caramel - Non-GUI Java Addons
** Copyright (c) 2001, 2002, 2003 by Gerald Bauer
**
** This program is free software.
**
** You may redistribute it and/or modify it under the terms of the GNU
** Lesser General Public License as published by the Free Software Foundation.
** Version 2.1 of the license should be included with this distribution in
** the file LICENSE, as well as License.html. If the license is not
** included with this distribution, you may find a copy at the FSF web
** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
**
** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
** REDISTRIBUTION OF THIS SOFTWARE.
**
*/
import java.text.*;
import java.util.*;
public class DateUtils
{
/**
* RFC 1123 date format example: Mon, 06 May 1996 04:57:00 GMT - days: Mon,
* Tue, Wed, Thu, Fri, Sat, Sun - months: Jan, Feb, Mar, Apr, May, Jun, Jul,
* Aug, Sep, Oct, Nov, Dec
*/
private static SimpleDateFormat _df;
public static String getDate()
{
Calendar cal = Calendar.getInstance();
cal.setTime( new Date() );
int year = cal.get( Calendar.YEAR );
int month = cal.get( Calendar.MONTH ) + 1;
int day = cal.get( Calendar.DAY_OF_MONTH );
return "" + year
+ "-" + month
+ "-" + day;
}
/**
* convienence method returns current timestamp
*/
public static String getHttpDate()
{
return getHttpDate( new Date() );
}
public static String getHttpDate( long timestamp )
{
return getHttpDate( new Date( timestamp ) );
}
public static String getHttpDate( Date date )
{
return _df.format( date );
}
public static String getTime()
{
Calendar cal = Calendar.getInstance();
cal.setTime( new Date() );
int hours = cal.get( Calendar.HOUR_OF_DAY );
// use 24 hour clock
int minutes = cal.get( Calendar.MINUTE );
int seconds = cal.get( Calendar.SECOND );
int milli = cal.get( Calendar.MILLISECOND );
return formatTime( hours, minutes, seconds, milli );
}
public static String getTimestamp()
{
Calendar cal = Calendar.getInstance();
cal.setTime( new Date() );
int year = cal.get( Calendar.YEAR );
int month = cal.get( Calendar.MONTH ) + 1;
int day = cal.get( Calendar.DAY_OF_MONTH );
int hours = cal.get( Calendar.HOUR_OF_DAY );
// use 24 hour clock
int minutes = cal.get( Calendar.MINUTE );
int seconds = cal.get( Calendar.SECOND );
int milli = cal.get( Calendar.MILLISECOND );
return "" + year
+ "-" + month
+ "-" + day
+ "_" + formatTime( hours, minutes, seconds, milli );
}
private static String formatTime( int hours, int minutes, int seconds, int milli )
{
StringBuffer buf = new StringBuffer();
buf.append( "" + hours );
buf.append( "." );
if( minutes < 10 )
buf.append( "0" + minutes );
else
buf.append( "" + minutes );
buf.append( "." );
if( seconds < 10 )
buf.append( "0" + seconds );
else
buf.append( "" + seconds );
buf.append( "-" );
if( milli < 10 )
buf.append( "00" + milli );
else if( milli < 100 )
buf.append( "0" + milli );
else
buf.append( "" + milli );
return buf.toString();
}
static
{
_df = new SimpleDateFormat( "EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US );
_df.setTimeZone( TimeZone.getTimeZone( "GMT" ) );
}
}
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