001/**
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
004 *
005 * This program and the accompanying materials are dual-licensed under
006 * either the terms of the Eclipse Public License v1.0 as published by
007 * the Eclipse Foundation
008 *
009 *   or (per the licensee's choosing)
010 *
011 * under the terms of the GNU Lesser General Public License version 2.1
012 * as published by the Free Software Foundation.
013 */
014package chapters.layouts;
015
016import ch.qos.logback.classic.Level;
017import ch.qos.logback.classic.pattern.ClassicConverter;
018import ch.qos.logback.classic.spi.ILoggingEvent;
019
020public class MySampleConverter extends ClassicConverter {
021
022    long start = System.nanoTime();
023
024    @Override
025    public String convert(ILoggingEvent event) {
026        long nowInNanos = System.nanoTime();
027        return Long.toString(nowInNanos - start);
028    }
029}