Here is an example of using the SaxEventInterpreter class from the logback library:

import ch.qos.logback.core.joran.spi.JoranException;
import ch.qos.logback.core.joran.spi.SaxEvent;
import ch.qos.logback.core.joran.spi.SaxEventRecorder;
import ch.qos.logback.core.status.StatusManager;

import java.io.FileInputStream;
import java.io.IOException;
import java.util.List;

public class SaxEventInterpreterExample {
    public static void main(String[] args) throws JoranException, IOException {
        String configFile = "logback.xml";
        FileInputStream inputStream = new FileInputStream(configFile);
        List<SaxEvent> eventList = new SaxEventRecorder().recordEvents(inputStream);

        SaxEventInterpreter interpreter = new SaxEventInterpreter(new LoggerContext(), eventList, new StatusManager());
        interpreter.play();

        Logger logger = LoggerFactory.getLogger(SaxEventInterpreterExample.class);
        logger.debug("This is a debug message.");
        logger.info("This is an info message.");
        logger.warn("This is a warning message.");
        logger.error("This is an error message.");
    }
}

In this example, a SaxEventInterpreter object is instantiated and passed a LoggerContext, a list of SaxEvents generated by the SaxEventRecorder and a StatusManager object. The play() method is called on the interpreter, which processes the events in the list, and uses them to configure the logger context.

Once the interpreter is done, you can use a logger to log messages as usual.

It is worth noticing that this example uses an XML configuration file to configure the logger, but it's also possible to configure logback programmatically.

Also The logback version that you are using may vary based on the dependencies you are using, if you are using latest version of logback this class may not be available.