LoggerHelper.java

package spiffy.log4j;

import org.apache.log4j.Logger;

/**
 * Helper class for common Log4J interactions
 * 
 * @author Kasper B. Graversen, (c) 2007-2008
 */
public class LoggerHelper {
/**
 * Returns a Log4J logger configured as the calling class. This ensures copy-paste safe code to get a logger instance,
 * an ensures the logger is always fetched in a consistent manner. <br>
 * <b>usage:</b><br>
 * 
 * <pre>
 * private final static Logger log = LoggerHelper.getLogger();
 * </pre>
 * 
 * Since the logger is found by accessing the call stack it is important, that references are static.
 * <p>
 * The code is JDK1.4 compatible
 * 
 * @return log4j logger instance for the calling class
 * @author Kasper B. Graversen
 */
public static Logger getLogger() {
	final Throwable t = new Throwable();
	t.fillInStackTrace();
	final String fullClassName = t.getStackTrace()[1].getClassName(); // get info on calling entity
	return Logger.getLogger(fullClassName);
}

}