[logback-user] Programmatically adding appenders

Bee-lindgren, Bert A bert.bee-lindgren at oit.gatech.edu
Fri Mar 4 03:56:31 CET 2011

Are you start( )'ing the appender? 

----- Original Message -----
From: "Jason Corbett" <jasoncorbett at gmail.com> 
To: logback-user at qos.ch 
Sent: Thursday, March 3, 2011 7:46:29 PM 
Subject: [logback-user] Programmatically adding appenders 

I have searched, but have been unable to find a way to do this. I need to add an appender after configuration has happened. This is because whether or not the appender is even wanted is dependent on a runtime condition. I've seen plenty of examples using the sifting appender, but I don't want to include the appender in the config file because I don't want to create a dependency on the appender being there (it's an optional component). 

I've tried this: 

LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); 
Logger testcase_logger = lc.getLogger("test"); 

But I never get any logging events (this is a custom log appender). Test is the base of all the loggers I want logging to this appender (I want anything with a test. at the beginning of the logger name to write to this appender). 

Any ideas? 

My custom appender extends AppenderBase<ILoggingEvent>. 

Jason Corbett 
Logback-user mailing list 
Logback-user at qos.ch 
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