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.Matcher; 21 import java.util.regex.Pattern; 22 23 24 public class XMLTimestampFilter implements Filter { 25 26 public String filter(String in) { 27 if(in == null) { 28 return null; 29 } 30 Pattern pattern = Pattern.compile("timestamp=\"//d{10,13}\""); 31 Matcher matcher = pattern.matcher(in); 32 if (matcher.find()) { 33 return matcher.replaceAll("timestamp=\"XXX\""); 34 } else { 35 return in; 36 } 37 } 38 }