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 */ 017 018package org.apache.log4j.pattern; 019 020/** 021 * Formats an date by delegating to DatePatternConverter. The default 022 * date pattern for a %d specifier in a file name is different than 023 * the %d pattern in pattern layout. 024 * 025 * @author Curt Arnold 026 */ 027public final class FileDatePatternConverter { 028 /** 029 * Private constructor. 030 */ 031 private FileDatePatternConverter() { 032 } 033 034 /** 035 * Obtains an instance of pattern converter. 036 * @param options options, may be null. 037 * @return instance of pattern converter. 038 */ 039 public static PatternConverter newInstance( 040 final String[] options) { 041 if ((options == null) || (options.length == 0)) { 042 return DatePatternConverter.newInstance( 043 new String[] { 044 "yyyy-MM-dd" 045 }); 046 } 047 048 return DatePatternConverter.newInstance(options); 049 } 050}