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.util;
19
20 import java.util.regex.*;
21
22
23 public class ISO8601Filter implements Filter {
24 private final Pattern pattern;
25
26 public ISO8601Filter() {
27 pattern = Pattern.compile(ISO8601_PAT);
28 }
29
30 public String filter(String in) {
31 if (pattern.matcher(in).find()) {
32 return pattern.matcher(in).replaceAll("");
33 } else {
34 return in;
35 }
36 }
37 }