[LOG4J2-1866] Add default value to MdcPatternConverter

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.8.2
• Component/s: Pattern Converters
• Labels: converter mdc pattern
• Assignee: Unassigned
• Reporter: Izek Greenfield
• Created: 06/Apr/17 09:49
• Updated: 27/Dec/19 15:11

Description

When using %X in a pattern I can't define default value if the value does not exist in MDC.

I will be great to be able to define one like:

pattern

%X{key}{hello}