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}