Logging in AEM (Adobe Experience Manager) for Java source code can be achieved using the SLF4J (Simple Logging Facade for Java) API.
Here are the steps to configure logging in AEM:
1. Add the SLF4J API and a logging implementation JAR to your AEM project's dependencies. The most commonly used logging implementations are Logback and Log4j.
2. Create a logback.xml or log4j.properties file in the project's classpath. These files contain the logging configuration details such as log levels, appenders, etc.
3. Add the logging statements in your Java source code using the SLF4J API. For example:
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MyClass {
private static final Logger LOGGER = LoggerFactory.getLogger(MyClass.class);
public void myMethod() {
LOGGER.debug("Debug message");
LOGGER.info("Info message");
LOGGER.warn("Warn message");
LOGGER.error("Error message");
}
}
Deploy the AEM project and monitor the log files for the output of the logging statements.
By default, AEM uses the Log4j logging framework. You can configure AEM's logging settings using the OSGi configuration console. In the console, you can set the log levels and appenders for various AEM components and modules. The console can be accessed via the URL http://localhost:4502/system/console/configMgr .
It's important to properly configure the logging statements to avoid performance issues, such as unnecessary logging and excessive log volume. Properly logging important information and errors can help diagnose issues and debug problems that occur in the application.
