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From "Karr, David" <david.k...@wamu.net>
Subject RE: [jelly] How to build a date object with current time in GMT?
Date Fri, 26 Jan 2007 14:36:15 GMT
Below. 
> -----Original Message-----
> From: Dion Gillard [mailto:dion.gillard@gmail.com] 
> Sent: Friday, January 26, 2007 3:18 AM
> To: Jakarta Commons Users List
> Subject: Re: [jelly] How to build a date object with current 
> time in GMT?
> 
> On 1/26/07, Karr, David <david.karr@wamu.net> wrote:
> > I have a Jelly script that puts the current time into a string.  It 
> > works ok, but I'm realizing I need to convert the time to 
> GMT before 
> > putting it into the string.  It's straightforward to do 
> this in Java, 
> > but I'm having trouble figuring out how to do this in the 
> limited Java 
> > syntax in Jelly.
> >
> > In Java, I might do something like this:
> >
> >   Calendar calendar = Calendar.getInstance();
> calendar.setTimeZone(TimeZone.getTimeZone(TimeZone.getAvailableIDs(0)[
> > 0]
> > ));
> >   date gmtDate = calendar.getDate();
> >
> > In Jelly, I think I can get close, but part of what I'm 
> doing doesn't 
> > work.
> >
> > ----------
> > <j:invokeStatic className="java.util.Calendar" method="getInstance"
> >                 var="calendar"/>
> > <j:invokeStatic className="java.util.TimeZone" 
> method="getAvailableIDs"
> >                 var="timezones">
> >  <j:arg type="int" value="0"/>
> > </j:invokeStatic>
> >
> > <j:forEach var="timezone" begin="0" end="0" items="${timezones}"> 
> > </j:forEach>
> 
> Not sure why you're doing this....assuming it's to get timezones[0]
> 
> >
> > <j:setProperties object="${calendar}" timeZone="${timezone}"/>
> 
> How about (untried)
> 
> <j:setProperties object="${calendar}" timeZone="${timezones[0]}"/>
> 
> ?

That would probably be better, but both of these fail with the same
"argument type mismatch" error.  I wonder whether the "${timezone}"
reference tries to produce a String instead of a TimeZone object?

> > ----------
> >
> > I get an unhelpful "argument type mismatch" error on the 
> "setProperties"
> > element.  I added "log:info" elements along the way to verify I was 
> > getting reasonable values (like the value for "timezone" resulting 
> > from the "forEach" loop).

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