We have an appended selector for this. Why not us it? Sent from my iPhone
> On Sep 15, 2018, at 11:07 AM, Gary Gregory <garydgreg...@gmail.com> wrote: > > Hi All: > > At work, we have an installer program that installs one of five log4j > configs depending on what the user selects in a UI. Each of these 5 configs > causes log events to end up in different kinds of SQL and NoSQL databases, > you pick one when you install. The installer does a brute force search and > replace in the log4j file to replace markers with things like database IP > addresses and port numbers. So far so simple and good. > > The next iteration of the installer provides an additional choice to log to > a file or not, in addition of one of the 5 databases. > > Option 1? > In order to avoid having 5x2 preset config files in the installer, I'd like > to add the file config to each of the existing 5 configurations and have > the file appender enabled or not based on a boolean flag that the installer > can implement as part of its search and replace. You'd end up with: > > <AppenderRef ref="foo" enabled="true|false" /> > <AppenderFoo enabled="true|false" /> > > If an appender is disabled it does not end up in the Log4j object tree at > all. It is like it never existed in the config file. > > Option 2? > Add a second log4j2.xml, say log4j2-rollingfile.xml config file and have > Log4j combine it with the other log4j.xml on the class path. How? > > Other options? > > Thank you, > Gary
