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 * Formats the event thread priority. 24 * 25 * @since 2.6 26 */ 27 @Plugin(name = "ThreadPriorityPatternConverter", category = PatternConverter.CATEGORY) 28 @ConverterKeys({ "tp", "threadPriority" }) 29 public final class ThreadPriorityPatternConverter extends LogEventPatternConverter { 30 /** 31 * Singleton. 32 */ 33 private static final ThreadPriorityPatternConverter INSTANCE = 34 new ThreadPriorityPatternConverter(); 35 36 /** 37 * Private constructor. 38 */ 39 private ThreadPriorityPatternConverter() { 40 super("ThreadPriority", "threadPriority"); 41 } 42 43 /** 44 * Obtains an instance of ThreadPatternConverter. 45 * 46 * @param options options, currently ignored, may be null. 47 * @return instance of ThreadPatternConverter. 48 */ 49 public static ThreadPriorityPatternConverter newInstance( 50 final String[] options) { 51 return INSTANCE; 52 } 53 54 /** 55 * {@inheritDoc} 56 */ 57 @Override 58 public void format(final LogEvent event, final StringBuilder toAppendTo) { 59 toAppendTo.append(event.getThreadPriority()); 60 } 61 }