[LOG4J2-2785] Pattern Layout to abbreviate the name of all logger components except the 2 rightmost

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.19.1
• Component/s: Layouts
• External issue URL: https://stackoverflow.com/a/60270322/3213514
• Assignee: Ralph Goers
• Reporter: Rahul Khimasia
• Created: 19/Feb/20 02:49
• Updated: 03/Jan/23 14:01
• Resolved: 30/Dec/22 19:21

Description

The following are my favorite patterns

%c{2} - which displays the corresponding number of rightmost logger name components. So a logger with a name like "org.apache.commons.Foo" is displayed as "commons.Foo".

and

%c{1.} - which abbreviates the name based on the pattern. So a logger with a name like "org.apache.commons.Foo" is displayed as "o.a.c.Foo".

Is there a way to combine the two. I want to abbreviate the name of all logger components except the 2 rightmost. Such that "org.apache.commons.Foo" is displayed as "o.a.commons.Foo".

Issue Links

• duplicates: LOG4J2-2401 Extend %c conversion pattern - separately control the number of characters in each class component and the number of elements that are fully specified
• is duplicated by: LOG4J2-241 Support the ability to trim logger name from the right.
• links to: GitHub Pull Request #542