It sounds like that would allow the behaviour I would need, thanks very much, I'll use that in future. I have to confess, however, that it feels rather messy and complicated to maintain. What do you think of the idea of specifying a level on the combination of logger and appender (effectively the appender-ref)? With the proviso that you can still specify it on the logger alone as a shorthand for specifying it on all appender-refs? I'm tempted to protoptype it if you would consider the approach; it would allow a nice clean configuration based on inheritance, and would work with existing logback.xml files as well. ----- Original Message ----- From: "Ceki Gulcu" <listid@qos.ch> To: "logback users list" <logback-user@qos.ch> Sent: Thursday, 30 October, 2008 1:51:42 PM GMT +00:00 GMT Britain, Ireland, Portugal Subject: Re: [logback-user] Set Level per Logger AND Appender? I see. You could attach an evaluator fiter which can filter events based on criteria that you decide upon. For example, <filter class="ch.qos.logback.core.filter.EvaluatorFilter"> <evaluator name="myEval"> <expression> (logger.getName().contains("logger names...") && level > INFO) || (level > WARN) </expression> </evaluator> <OnMismatch>DENY</OnMismatch> <OnMatch>ACCEPT</OnMatch> </filter> where "logger names ..." stands for loggers needing special handling. I am not 100% the above expression is error free but it should at least get my point across. In particular, you need to write & as & in an XML file. So '&&' would become '&&'. Does the above help? Robert Elliot wrote:
Because for some loggers I want INFO level statements to be written to application.log (for instance in the case of server startup / shutdown) and for some loggers I don't. If I set a filter on the appender to only allow WARN or higher to application.log I lose all the INFO statements I wanted- if I set it to allow INFO or higher then if I set a logger to DEBUG then it will start sending INFO messages that I don't want to application.log.
-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user