1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache license, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the license for the specific language governing permissions and 15 * limitations under the license. 16 */ 17 package org.apache.logging.log4j.core.pattern; 18 19 import org.apache.logging.log4j.core.LogEvent; 20 import org.apache.logging.log4j.core.config.plugins.Plugin; 21 22 /** 23 * Converts and formats the event's nanoTime in a StringBuilder. 24 */ 25 @Plugin(name = "NanoTimePatternConverter", category = PatternConverter.CATEGORY) 26 @ConverterKeys({ "N", "nano" }) 27 public final class NanoTimePatternConverter extends LogEventPatternConverter { 28 29 /** 30 * Private constructor. 31 * 32 * @param options 33 * options, may be null. 34 */ 35 private NanoTimePatternConverter(final String[] options) { 36 super("Nanotime", "nanotime"); 37 } 38 39 /** 40 * Obtains an instance of pattern converter. 41 * 42 * @param options 43 * options, may be null. 44 * @return instance of pattern converter. 45 */ 46 public static NanoTimePatternConverter newInstance(final String[] options) { 47 return new NanoTimePatternConverter(options); 48 } 49 50 /** 51 * {@inheritDoc} 52 */ 53 @Override 54 public void format(final LogEvent event, final StringBuilder output) { 55 output.append(event.getNanoTime()); 56 } 57 }