Using a property from one property file into log4j2 properties file - log4j2

Question

I have one properties file, let's say abc.properties and a log4j2.properties file. I am unable to access the logs.dir property which is present in abc.properties file into log4j2.properties file. This is done in order to switch the log file location based on different environment. Thanks.

Answer 1

If abc.properties and log4j2.properties configuration file are on the same directory then access logs.dir using below way in log4j2.properties file -
property.fileName=${bundle:abc:logs.dir}
Adding more details about environment as asked in comments -
Project Structure - A simple Maven project.
Dependency - I tried with version log4j2 version 2.8.2 , below are dependencies in pom.xml -
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.8.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.8.2</version>
</dependency>
Content of abc.properties -
logs.dir = ./logs/abcfile.log
Relevant content of log4j2 -
appender.rolling.type = RollingFile
appender.rolling.name = fileLogger
appender.rolling.fileName=${bundle:abc:logs.dir}
appender.rolling.filePattern=${basePath}app_%d{yyyyMMdd}.log.gz
As you can see in screenshot also, logs are getting generated on the path specified in abc.properties file.