[logback-dev] Least-effort logging with bytecode modification

26 Jul 2008

      Hi

At the company I work for we use the same logging pattern almost
everywhere, for example:

public class SomeClass {
	private static final Logger log =
LoggerFactory.getLogger(SomeClass.class);

	public void someMethod() {
		log.debug("A log message");
	}
}

I would like to simplify this to:

import static logging.LogApi.*;

public class SomeClass {
	private void someMethod(String someArg) {
		debug("A log message"); // from static import
	}
}

And then have code equivalent to the former generated (preferably at
class load time) dynamically. This could save us hundreds of lines of
boilerplate code and provide other interesting options like declarative
rules regarding the "injected" logger name, perhaps through class/method
annotations and pre-calculating the source location information.

I thought of implementing this with AspectJ but its probably easier to
just use ASM directly for such a simple case.

Any ideas/suggestions/precedents?

Thanks
Ramon

[logback-dev] Least-effort logging with bytecode modification

Ramon Nogueira