Please review the PR for LOG4J2-2639 at
https://github.com/apache/logging-log4j2/pull/284
<https://github.com/apache/logging-log4j2/pull/284>. This adds new Logger
methods to allow a builder pattern to be used to accumulate the parameters to a
logging call before logging the event. I got this idea from messages on the
SLF4J list but I haven’t looked at that code at all so I have no idea how Ceki
implemented that. To be honest, the only reason I implemented this was because
it allows the location information to be exposed and calculated in a hopefully
more efficient way. I haven’t run tests to verify that but the default way of
calculating a location only requires looking up 2 levels in the call stack
instead of dynamically searching for the matching FQCN.
I haven’t written the doc for this yet but a typical logging call might look
like:
logger.atDebug().withLocation().withMessage(*Hello
{}”).withParameters(“Sam”).withMarker(myMarker).log();
This feature is only implemented on master as it takes advantage of Java 8
default methods to maintain backward compatibility.
Ralph
