Stream-Interface for Loggers

I would like to have method (or class) to use a logger as a PrintStream, like e.g.:

PrintStream Logger.getStream(Level level);

or maybe like this http://www.java2s.com/Open-Source/Java/Testing/jacareto/jacareto/toolkit/log4j/LogOutputStream.java.htm

(as I recently discovered, org.apache.commons.exec.LogOutputStream is doing different things).