001/**
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2021, 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 ch.qos.logback.classic.pattern;
015
016import ch.qos.logback.classic.spi.ILoggingEvent;
017
018/**
019 * Outputs the number of microseconds of the timestamp.
020 * 
021 * 
022 * @author ceki
023 * @since 1.3.0
024 */
025public class MicrosecondConverter extends ClassicConverter {
026
027    @Override
028    public String convert(ILoggingEvent event) {
029        int nanos = event.getNanoseconds();
030        int millis_and_micros = nanos / 1000;
031        int micros = millis_and_micros % 1000;
032
033        if (micros >= 100)
034            return Integer.toString(micros);
035        else if (micros >= 10)
036            return "0" + Integer.toString(micros);
037        else
038            return "00" + Integer.toString(micros);
039    }
040
041}