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 18 package org.apache.log4j.pattern; 19 20 import org.apache.log4j.spi.LocationInfo; 21 import org.apache.log4j.spi.LoggingEvent; 22 23 24 /** 25 * Return the event's line location information in a StringBuffer. 26 * 27 * @author Ceki Gülcü 28 */ 29 public final class MethodLocationPatternConverter 30 extends LoggingEventPatternConverter { 31 /** 32 * Singleton. 33 */ 34 private static final MethodLocationPatternConverter INSTANCE = 35 new MethodLocationPatternConverter(); 36 37 /** 38 * Private constructor. 39 */ 40 private MethodLocationPatternConverter() { 41 super("Method", "method"); 42 } 43 44 /** 45 * Obtains an instance of MethodLocationPatternConverter. 46 * @param options options, may be null. 47 * @return instance of MethodLocationPatternConverter. 48 */ 49 public static MethodLocationPatternConverter newInstance( 50 final String[] options) { 51 return INSTANCE; 52 } 53 54 /** 55 * {@inheritDoc} 56 */ 57 public void format(final LoggingEvent event, final StringBuffer toAppendTo) { 58 LocationInfo locationInfo = event.getLocationInformation(); 59 60 if (locationInfo != null) { 61 toAppendTo.append(locationInfo.getMethodName()); 62 } 63 } 64 }