001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache license, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the license for the specific language governing permissions and 015 * limitations under the license. 016 */ 017package org.apache.logging.log4j.core.pattern; 018 019import org.apache.logging.log4j.core.LogEvent; 020import org.apache.logging.log4j.core.config.plugins.Plugin; 021 022/** 023 * Converts and formats the event's nanoTime in a StringBuilder. 024 */ 025@Plugin(name = "NanoTimePatternConverter", category = PatternConverter.CATEGORY) 026@ConverterKeys({ "N", "nano" }) 027public final class NanoTimePatternConverter extends LogEventPatternConverter { 028 029 /** 030 * Private constructor. 031 * 032 * @param options 033 * options, may be null. 034 */ 035 private NanoTimePatternConverter(final String[] options) { 036 super("Nanotime", "nanotime"); 037 } 038 039 /** 040 * Obtains an instance of pattern converter. 041 * 042 * @param options 043 * options, may be null. 044 * @return instance of pattern converter. 045 */ 046 public static NanoTimePatternConverter newInstance(final String[] options) { 047 return new NanoTimePatternConverter(options); 048 } 049 050 /** 051 * {@inheritDoc} 052 */ 053 @Override 054 public void format(final LogEvent event, final StringBuilder output) { 055 output.append(event.getNanoTime()); 056 } 057}