[piyush.mnnit]

I mean here is date formatters.  Please find log4j documentation below:

" Used to output the date of the logging event. The date conversion specifier may be followed by a date format specifier enclosed between braces. For example, %d{HH:mm:ss,SSS} or %d{dd MMM yyyy HH:mm:ss,SSS}.  If no date format specifier is given then ISO8601 format is assumed. 

The date format specifier admits the same syntax as the time pattern string of the SimpleDateFormat. Although part of the standard JDK, the performance of SimpleDateFormat is quite poor. 

For better results it is recommended to use the log4j date formatters. These can be specified using one of the strings "ABSOLUTE", "DATE" and "ISO8601" for specifying AbsoluteTimeDateFormat, DateTimeDateFormat and respectively ISO8601DateFormat. For example, %d{ISO8601} or %d{ABSOLUTE}. 

These dedicated date formatters perform significantly better than SimpleDateFormat. "

Looking for how to get %d{ABSOLUTE} in Jboss logging.

[jamezp]

You can't just use ABSOLUTE or ISO8601 you have to use a format that java.text.SimpleDateFormat can understand. In your case I think ABSOLUTE just renders to HH:mm:ss,SSS.

--

James R. Perkins

[andreypolozov]

Trying to use %d{yyyy-MM-dd'T'HH:mm:ss.SSSZ}

Getting error

java.util.logging.ErrorManager: 5: Formatting error

java.lang.IllegalArgumentException: Illegal pattern character 'T'

This seems to be working: %d{yyyy-MM-dd}T%d{HH:mm:ss.SSSZ}

But it's not quite right: time zone doesn't have ":" in the middle)

And doesn't seem to be most efficient: SimpleDateFormatter is used twice...

[jamezp]

It seems to work fine for me. Is there a stack trace with it?

--

James R. Perkins

[andreypolozov]

Oops!

It does work this time! (probably mixed up changes).

Sorry about confusion!

As of pure iso 8601 format in SimpleDateFormatter - it is supported in Java 7:

http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html

So, this should do the trick: %d{yyyy-MM-dd}T%d{HH:mm:ss.SSSX}

[jamezp]

Yeah that will work. If you're running on Java 7 it should work too. The logmanager won't care what the format is, so as long as SimpleDateFormatter understands it you're good to go. So If you're running Java 7 you could just use %d{yyyy-MM-dd'T'HH:mm:ss.SSSXXX}.

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James R. Perkins