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  }