logging-log4j-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From mc1392 <mc1...@columbia.edu>
Subject Re: DailyRollingFileAppender (newest on top)
Date Sat, 12 Dec 2009 16:29:49 GMT

Thank you. I thought about that, but was hoping there was some easier
alternative.
I will give it a shot.
: )

Curt Arnold-3 wrote:
> 
> 
> On Dec 8, 2009, at 3:48 PM, mc1392 wrote:
> 
>> 
>> Is there any way to get the log entries to have the most recent on top?
>> Currently I am using html layout and the newest entry ends up at the
>> bottom
>> of the file.
>> I'd like the newest on top.
>> 
> 
> Appending content is within the capabilities of java.io, prepending is
> not.   To do it without support from the IO system, you'd end up rewriting
> the entire log file for every entry.   logging is write often, read
> rarely, so it makes more sense to optimize writing. 
> 
> Since you are using the HTMLLayout and presumably reading the log file
> within a modern browser, you could instead use the XMLLayout, write the
> log in the traditional order and then use an XSLT stylesheet to format and
> reorder the entries in the browser.  To do that, you'd need a shell
> document,
> 
> logfile.xml
> 
> <!DOCTYPE logfile [
> <!ENTITY events SYSTEM 'events.xml'>
> ]>
> <?xml-stylesheet href="mystylesheet.xsl"?>
> <logfile>
> 	&events;
> </logfile>
> 
> 
> And have your file appender write to events.xml.  A browser reading
> logfile.xml will read in the contents of events.xml and then will run the
> transform in mystylesheet.xsl which could convert the logging events to
> the order and format of your choice.
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: log4j-user-unsubscribe@logging.apache.org
> For additional commands, e-mail: log4j-user-help@logging.apache.org
> 
> 
> 

-- 
View this message in context: http://old.nabble.com/DailyRollingFileAppender-tp26701419p26758939.html
Sent from the Log4j - Users mailing list archive at Nabble.com.


---------------------------------------------------------------------
To unsubscribe, e-mail: log4j-user-unsubscribe@logging.apache.org
For additional commands, e-mail: log4j-user-help@logging.apache.org


Mime
View raw message