log4j: assigning logging level per appender

[David Irwin]

All,

I use log4j extensively in my application. I'm wondering if there's a way to set the logging level based on the appendering being used. For example, my rolling file appender I would like to set to debug logging level, while my console appender I would like to set to info, and my smtp appender to fatal.

I've looked through the log4j manual and while I can set the logging level based on a specific class package (i.e. foo.bar.com set to a different logging level than my root logger), I can't figure out a way to set the logging level based on the appender. Am I missing something?

Thanks,
Dave

[Paul Clapham]

I don't think so. I just looked at the API documentation. The Logger class has a setLevel() method and the Appender class doesn't.

You could write an org.apache.log4j.spi.Filter object that denies logging events of whatever level you want to filter out, and add that to the appender in question.