org.graylog2.log.Log4jVersionChecker Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of gelfj Show documentation

GELF implementation in Java and log4j appender without any dependencies.

The newest version!

package org.graylog2.log;

import org.apache.log4j.spi.LoggingEvent;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
 *
 * @author Anton Yakimov
 * @author Jochen Schalanda
 */
public class Log4jVersionChecker {

    private static Method methodGetTimeStamp = null;

    static {
        Method[] declaredMethods = LoggingEvent.class.getDeclaredMethods();
        for(Method m : declaredMethods) {
            if (m.getName().equals("getTimeStamp")) {
                methodGetTimeStamp = m;
                break;
            }
        }
    }

    public static long getTimeStamp(LoggingEvent event) {

        long timeStamp = 0;
        if(methodGetTimeStamp != null) {

            try {
                timeStamp = (Long) methodGetTimeStamp.invoke(event);
            } catch (IllegalAccessException e) {
                // Just return the current timestamp
            } catch (InvocationTargetException e) {
                // Just return the current timestamp
            }
        }

        return timeStamp == 0 ? System.currentTimeMillis() : timeStamp;
    }
}