title: Programmatically change log level in Log4j2
body: <p>I'm interested in programmatically changing the log level in Log4j2. I tried looking at their <a href="http://logging.apache.org/log4j/2.x/manual/configuration.html" rel="noreferrer">configuration documentation</a> but that didn't seem to have anything. I also tried looking in the package: <code>org.apache.logging.log4j.core.config</code>, but nothing in there looked helpful either.</p>