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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  /**
21   * Formats an date by delegating to DatePatternConverter.  The default
22   * date pattern for a %d specifier in a file name is different than
23   * the %d pattern in pattern layout.
24   *
25   * @author Curt Arnold
26   */
27  public final class FileDatePatternConverter {
28    /**
29     * Private constructor.
30     */
31    private FileDatePatternConverter() {
32    }
33  
34    /**
35     * Obtains an instance of pattern converter.
36     * @param options options, may be null.
37     * @return instance of pattern converter.
38     */
39    public static PatternConverter newInstance(
40      final String[] options) {
41      if ((options == null) || (options.length == 0)) {
42        return DatePatternConverter.newInstance(
43          new String[] {
44                  "yyyy-MM-dd"
45          });
46      }
47  
48      return DatePatternConverter.newInstance(options);
49    }
50  }