1 /**
2 * Logback: the reliable, generic, fast and flexible logging framework.
3 * Copyright (C) 1999-2021, QOS.ch. All rights reserved.
4 *
5 * This program and the accompanying materials are dual-licensed under
6 * either the terms of the Eclipse Public License v1.0 as published by
7 * the Eclipse Foundation
8 *
9 * or (per the licensee's choosing)
10 *
11 * under the terms of the GNU Lesser General Public License version 2.1
12 * as published by the Free Software Foundation.
13 */
14 package ch.qos.logback.classic.pattern;
15
16 import ch.qos.logback.classic.spi.ILoggingEvent;
17
18 /**
19 * Outputs the number of microseconds of the timestamp.
20 *
21 *
22 * @author ceki
23 * @since 1.3.0
24 */
25 public class MicrosecondConverter extends ClassicConverter {
26
27 @Override
28 public String convert(ILoggingEvent event) {
29 int nanos = event.getNanoseconds();
30 int millis_and_micros = nanos / 1000;
31 int micros = millis_and_micros % 1000;
32
33 if (micros >= 100)
34 return Integer.toString(micros);
35 else if (micros >= 10)
36 return "0" + Integer.toString(micros);
37 else
38 return "00" + Integer.toString(micros);
39 }
40
41 }