How to switch between log4j configuration files at runtime with a condition

Question

I have two different log4j.properties files. One is for production and the other one is for sandbox. Normally, application uses log4j.properties. But for sandbox version (by using a condition) I want that application should use a properties file which is created by me and named as sandbox-log4j.properties. Only difference between them is a log tracking line is added to sandbox version.

How could I make a switch between two files by using a conditin in a java file?

Answer 1

I found the answer. @Michael's suggestion on JVM helped me to handle the problem. I use Elastic Beanstalk and its JVM options field on Configuration provided to separate log4j.properties files. Setting JVM options to -Dlog4j.configuration=sandbox-log4j.properties is enough for solution.