Frank,

I know this has come up a lot in the past, and I think it should be
addressed.  I don't know if there are any plans in 1.3 related to
PatternLayout/PatternParser that might allow this in a different/better way.

If you have a patch you have been testing, please post it to this or the
log4j-dev list for evaluation.  Not super familiar with that part of the
code, but I think your solution/suggestion has merit and should be looked at
closer.

-Mark

> -----Original Message-----
> From: Frank Hood [mailto:[EMAIL PROTECTED]]
> Sent: Friday, April 26, 2002 2:57 PM
> To: [EMAIL PROTECTED]
> Subject: Time Zones
> 
> 
> This is in reply to unanswered questions about changing time 
> zones for the 
> date-time output.
> 
> I spent some time looking into this.  Short answer is: can't do 
> it.  But...PatternParser parses the PatternLayout string, 
> finds the %d, 
> checks for ABSOLUTE, DATE, and ISO8601.  It then calls the 
> similarly named 
> class to format date outputs.  Now each of these classes has 
> a constructor 
> that takes a timeZone as an argument, but of course that 
> constructor is not 
> called, just the no argument constructor that uses 
> Calendar.getInstance().  So one fix is to recode that section of 
> PatternParser to call the alternate constructor.
> 
> I can see why this hasn't been done.  To parse for a valid 
> time-zone value 
> in addition to the aforementioned string can get difficult.  
> My best idea 
> so far is adding a new key letter to the PatternLayout for 
> the parser to 
> look for--one representing the time-zone, and then call the 
> setTimeZone 
> method on the DateFormat (df) field.  It seems to work, 
> although I'm not 
> really familiar with the log4j code, so I could be missing something.
> 
> BTW, this has become a very busy list, and subscribing to it 
> causes my 
> mailbox great strain.  I don't mind registering in order to post, but 
> subscribing seems a little much.  I suspect some people 
> unsubscribe and 
> then read it anyway, replying to people when they can help.  
> Someone did 
> that for me and my question about the Mapped Diagnostic 
> Context.  It helped 
> me, but didn't help anyone else out there on the log4j-user 
> list.  Anyone 
> else think this is a problem?
> 
> 
> 
> Frank L. Hood
> 
> 
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