Red Hat Summit Red Hat SummitSupportConsoleDevelopersStart a trialContact

Chapter 88. Configuring a logging utility in the decision engine

The decision engine uses the Java logging API SLF4J for system logging. You can use one of the following logging utilities with the decision engine to investigate decision engine activity, such as for troubleshooting or data gathering:

  • Logback
  • Apache Commons Logging
  • Apache Log4j
  • java.util.logging package

Procedure

For the logging utility that you want to use, add the relevant dependency to your Maven project or save the relevant XML configuration file in the org.drools package of your Red Hat Process Automation Manager distribution:

Example Maven dependency for Logback

<dependency>
  <groupId>ch.qos.logback</groupId>
  <artifactId>logback-classic</artifactId>
  <version>${logback.version}</version>
</dependency>
Copy to Clipboard Toggle word wrap

Example logback.xml configuration file in org.drools package

<configuration>
  <logger name="org.drools" level="debug"/>
  ...
<configuration>
Copy to Clipboard Toggle word wrap

Example log4j.xml configuration file in org.drools package

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
  <category name="org.drools">
    <priority value="debug" />
  </category>
  ...
</log4j:configuration>
Copy to Clipboard Toggle word wrap

Note

If you are developing for an ultra light environment, use the slf4j-nop or slf4j-simple logger.

Back to top
Red Hat logoGithubredditYoutubeTwitter

Learn

Try, buy, & sell

Communities

About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust. Explore our recent updates.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

Theme

© 2025 Red Hat