[LOG4J2-621] Pattern to drop first N package parts

• Type: Wish
• Status: Open
• Priority: Trivial
• Resolution: Unresolved
• Affects Version/s: 2.0-rc1
• Component/s: Layouts
• Assignee: Unassigned
• Reporter: Lee Theobald
• Created: 29/Apr/14 10:51
• Updated: 02/May/16 21:31

Description

Currently you can have a pattern that will print out the last N parts of you package. So if my package was uk.co.ltheobald.foo.bar, then using %logger{2} will print foo.bar. But when I have a number of different package levels, this becomes less useful (in my opinion).

What I'd find more useful is the inverse where I can ditch the first N parts. Something like %logger{-3} for example. That way I'd end up with:

uk.co.ltheobald.Main logging as Main
uk.co.ltheobald.foo.MyClass logging as foo.MyClass
uk.co.ltheobald.foo.bar.MyOtherClass logging as foo.bar.MyOtherClass

Removing from the start of the logger name allows me to consistently trim off package names that I know are always the same. I'll see if I can produce a code example for this if I get time but I wanted to log it in the meanwhile.

Issue Links

• relates to: LOG4J2-382 PatternLayout: truncating from the end