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 import org.apache.logging.log4j.core.helpers.Constants; 22 23 /** 24 * Formats a line separator. 25 */ 26 @Plugin(name = "LineSeparatorPatternConverter", type = "Converter") 27 @ConverterKeys({"n" }) 28 public final class LineSeparatorPatternConverter extends LogEventPatternConverter { 29 30 /** 31 * Singleton. 32 */ 33 private static final LineSeparatorPatternConverter INSTANCE = 34 new LineSeparatorPatternConverter(); 35 36 /** 37 * Line separator. 38 */ 39 private final String lineSep; 40 41 /** 42 * Private constructor. 43 */ 44 private LineSeparatorPatternConverter() { 45 super("Line Sep", "lineSep"); 46 lineSep = Constants.LINE_SEP; 47 } 48 49 /** 50 * Obtains an instance of pattern converter. 51 * @param options options, may be null. 52 * @return instance of pattern converter. 53 */ 54 public static LineSeparatorPatternConverter newInstance(final String[] options) { 55 return INSTANCE; 56 } 57 58 /** 59 * {@inheritDoc} 60 */ 61 @Override 62 public void format(final LogEvent event, final StringBuilder toAppendTo) { 63 toAppendTo.append(lineSep); 64 } 65 }