CODEWITHSUNDEEP
log4j2
Mark
Mark

Reputation: 1852

Log4j2 Property Replacement

In Log4j2 appenders it's useful to use the contextPath as the filename, as in: filename="/logs/${web:contextPath}.log. This means one log configuration can be reused across multiple webapps.

However If a contextPath is /foo/bar this creates the file /logs/foo/bar.log. Is there anyway to replace the / in the contextPath with _ so the filename is /logs/foo_bar.log?

For me this is more useful than replicating the context path structure directly into the logs. I 've read up on the StringSubstitution docs and can't see anyway to do it, but if anyone has a solution it would be really helpful!

Upvotes: 2

Views: 283

Answers (1)

Remko Popma
Remko Popma

Reputation: 36754

I don't think there is a way to do this out of the box. But you can easily create a custom lookup that does this.

Start by subclassing WebLookup, and replace '/' characters with underscores in the returned string.

Example of creating a custom Log4j2 lookup: see the manual page, or this question.

Upvotes: 1

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