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From "Scott Deboy" <sde...@comotivsystems.com>
Subject RE: Sequence numbers for LoggingEvents
Date Thu, 06 Dec 2007 06:10:49 GMT
If I recall there was a sequence number added to loggingevent in the 1.3 codebase, but that
was taken out a while ago.

You can modify logging events before they're processed by appenders by using the org.apache.log4j.rewrite
package in the 'receivers' companion.

Create your own rewritepolicy implementation which adds a sequence number property to each
loggingevent, and then specify a rewriteappender which references your rewritepolicy implementation
and delegates to a regular appender.

http://logging.apache.org/log4j/companions/receivers/apidocs/index.html

http://svn.apache.org/viewvc/logging/log4j/companions/receivers/trunk/src/main/java/org/apache/log4j/rewrite/




Scott Deboy
COMOTIV SYSTEMS
111 SW Columbia Street Ste. 950
Portland, OR  97201

Telephone:      503.224.7496
Cell:           503.997.1367
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sdeboy@comotivsystems.com

www.comotivsystems.com



-----Original Message-----
From: Paul Duffy [mailto:paduffy@cisco.com]
Sent: Wed 12/5/2007 7:29 PM
To: Log4J Users List
Subject: Sequence numbers for LoggingEvents
 
Folks,

I have an application that is likely to produce LoggingEvents on 
identical millisecond epochs.  Thus I also need a sequence number to 
unambiguously determine event order. 

Is there any facility by which I can also include a montonically 
increasing sequence number in the event?  I went back through the 
archives...seems some work was started here for 1.3, but was stopped?

Cheers

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