[LOG4J2-3004] Migrate JsonTemplateLayout static resolvers to plugins

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.0.0, 2.15.0
• Component/s: JsonTemplateLayout
• Assignee: Volkan Yazici
• Reporter: Volkan Yazici
• Created: 25/Jan/21 21:37
• Updated: 04/Aug/21 05:49
• Resolved: 03/Apr/21 11:59

Description

JsonTemplateLayout uses a static list of resolvers. While this makes it impossible ¹ to update the set of resolvers used for the layout, e.g., adding new user-provided custom resolvers, it is also old fashioned. Log4j has a great plugin system and it is leveraged by PatternLayout exactly for the same thing. This story aims to bring this improvement to JsonTemplateLayout too.

¹ We can still allow the injection of a custom resolver factory in the layout configuration, but again, there is a better way to do it: plugins!

 

Issue Links

• links to: GitHub Pull Request #476
• links to: GitHub Pull Request #481