1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.journal.util;
24  
25  import java.util.List;
26  import java.util.regex.Matcher;
27  import java.util.regex.Pattern;
28  
29  import org.apache.commons.logging.Log;
30  import org.apache.commons.logging.LogFactory;
31  
32  /**
33   * <a href="RegexTransformerListener.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Brian Wing Shun Chan
36   *
37   */
38  public class RegexTransformerListener extends TransformerListener {
39  
40      public String onXml(String s) {
41          if (_log.isDebugEnabled()) {
42              _log.debug("onXml");
43          }
44  
45          return s;
46      }
47  
48      public String onScript(String s) {
49          if (_log.isDebugEnabled()) {
50              _log.debug("onScript");
51          }
52  
53          s = replace(s);
54  
55          return s;
56      }
57  
58      public String onOutput(String s) {
59          if (_log.isDebugEnabled()) {
60              _log.debug("onOutput");
61          }
62  
63          s = replace(s);
64  
65          return s;
66      }
67  
68      protected String replace(String s) {
69          if (s == null) {
70              return s;
71          }
72  
73          List<Pattern> patterns = RegexTransformerUtil.getPatterns();
74          List<String> replacements = RegexTransformerUtil.getReplacements();
75  
76          for (int i = 0; i < patterns.size(); i++) {
77              Pattern pattern = patterns.get(i);
78              String replacement = replacements.get(i);
79  
80              Matcher matcher = pattern.matcher(s);
81  
82              s = matcher.replaceAll(replacement);
83          }
84  
85          return s;
86      }
87  
88      private static Log _log = LogFactory.getLog(RegexTransformerListener.class);
89  
90  }