Log4JLogger.java

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package se.nicklasgavelin.log;

import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;

/**
 * Log appender for Log4j
 * 
 * @author Nicklas Gavelin, nicklas.gavelin@gmail.com, Luleå University of Technology
 */
public class Log4JLogger implements Logging.Appender
{
	private static final String FROM = Logging.class.getName();
	private Logger logger;

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.intel.bluetooth.DebugLog.LoggerAppender#appendLog(int, java.lang.String,
	 * java.lang.Throwable)
	 */
	protected Log4JLogger()
	{
		logger = Logger.getLogger( Logging.class.getCanonicalName() );
		logger.addAppender( new ConsoleAppender( new PatternLayout( "[ %C ][ %d ][ %p ] %m\n" ) ) );
	}

	/**
	 * Log a message
	 * 
	 * @param l The log level
	 * @param message The log message
	 * @param t Throwable object to log
	 */
	@Override
	public void log( Logging.Level l, String message, Throwable t )
	{
		switch ( l )
		{
			case DEBUG:
				this.logger.log( FROM, Level.DEBUG, message, t );
				break;
			case ERROR:
				this.logger.log( FROM, Level.ERROR, message, t );
				break;
			case INFO:
				this.logger.log( FROM, Level.INFO, message, t );
				break;
			case WARN:
				this.logger.log( FROM, Level.WARN, message, t );
				break;
		}
	}

	/**
	 * Returns the current log status
	 * 
	 * @param level The level to check for
	 * @return True if enabled for the given level, false otherwise
	 */
	@Override
	public boolean isLogEnabled( Logging.Level level )
	{
		switch ( level )
		{
			case DEBUG:
				return this.logger.isDebugEnabled();
			case ERROR:
				return this.logger.isEnabledFor( Level.ERROR );
			case INFO:
				return this.logger.isEnabledFor( Level.INFO );
			case WARN:
				return this.logger.isEnabledFor( Level.WARN );
			default:
				return false;
		}
	}
}