[LOG4J2-2248] Using MapMessage and JsonLayout should create json for the Map key/values

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.10.0
• Component/s: Layouts
• Assignee: Unassigned
• Reporter: Atle Tokle
• Created: 14/Feb/18 09:06
• Updated: 14/Feb/18 09:06

Description

I want to add extra parameters to structured Json output, and can do that by using ThreadContext, like shown in code below.

ThreadContext.put("key1", value1);
ThreadContext.put("key2", value2);
timerLogger.info("Values");
ThreadContext.remove("key1");
ThreadContext.remove("key2");

This is very intrusive in the code, and I tried to use MapMessage instead like this:

this. logger.info(new MapMessage().with("key1", "value1").with("key2", "value2"));

I see that the MapMessage can format messages as key="value", json, java and XML. I use a JsonAppender to ouput a format that is easy indexable by our log-management system. But the MapMessage is not output as json. I get this:

"message" : "key1=\"value1\" key2=\"value2\"", 

But I want:

"message" : {"key1" : "value1", "key2" : "value2" }