RE: format-date() extension

[Johannes van der Merwe]

Hi there
This is what I use:

        /**
         * Parse the datestring into a valid date then format into a
different date in the outputformat
         * If DateTime is empty then take current date
         * <xsl:variable name="mydate"
select="java:FormatDate('','yyyy-MM-dd HH:mm:ss.SSS','yyyyMMddHHmmss')"/>
         */
        public static String FormatDate(String DateTime, String InputFormat,
String OutputFormat)
        {
                if (DateTime==null)
                {
                        try{
                                //InputFormat   =       new
SimpleDateFormat().toPattern();
                                InputFormat     =       "EEE MMM dd kk:mm:ss
z yyyy";
                                // Tue Nov 13 15:36:41 GMT+02:00 2001
                                DateTime        =       new
SimpleDateFormat(InputFormat).parse(new Date().toString()).toString();
                        }
                        catch (ParseException pe)
                        {
                                return pe.toString();
                        }  
                } else {
                        if (DateTime.length()==0)
                        {
                                try{
                                        //InputFormat   =       new
SimpleDateFormat().toPattern();
                                        //InputFormat   =
((SimpleDateFormat)SimpleDateFormat.getDateTimeInstance()).toPattern();
                                        //InputFormat   =
DateFormat.getDateInstance().toPattern();
                                        InputFormat     =       "EEE MMM dd
kk:mm:ss z yyyy";
                                        // Tue Nov 13 15:36:41 GMT+02:00
2001
                                        DateTime        =       new
SimpleDateFormat(InputFormat).parse(Calendar.getInstance().getTime().toStrin
g()).toString();
                                }
                                catch (ParseException pe)
                                {
                                        return pe.toString();
                                }  
                        }
                }
                
                // Specify SimpleDateFormatter in the specified date format
                SimpleDateFormat df = new SimpleDateFormat(InputFormat);
                try{
                        // Parse with SimpleDateFormatter in the specified
date format
                        Date    d       =       df.parse(DateTime);
                        
                        // Reformat in new format
                        SimpleDateFormat dfout = new
SimpleDateFormat(OutputFormat);
                        return dfout.format(d);
                }
                catch (ParseException pe)
                {
                        return pe.toString();
                }  
        }
        
Kind regards
Jo van der Merwe


-----Original Message-----
From: Keen Tim [mailto:[EMAIL PROTECTED]]
Sent: 14 November 2001 07:22
To: [EMAIL PROTECTED]
Subject: format-date() extension


Has anyone done any work towards this?

I have a need for it and therefore I'm going to do it, but being new to
Java I don't expect it to be a brilliant piece of work. My job would
certainly be easier if I could piggy-back off the work that somebody
else has already done, even if it's only thoughts that they have or once
had.

I'm happy to contribute my work to the list and hopefully I'll receive
constructive criticism.

Cheers

Tim



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