1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
13   */
14  
15  package com.liferay.portlet.rss;
16  
17  import java.net.MalformedURLException;
18  import java.net.URL;
19  
20  import java.util.ArrayList;
21  import java.util.List;
22  
23  import javax.portlet.PortletPreferences;
24  import javax.portlet.PreferencesValidator;
25  import javax.portlet.ValidatorException;
26  
27  /**
28   * <a href="RSSPreferencesValidator.java.html"><b><i>View Source</i></b></a>
29   *
30   * @author Brian Wing Shun Chan
31   */
32  public class RSSPreferencesValidator implements PreferencesValidator {
33  
34      public void validate(PortletPreferences preferences)
35          throws ValidatorException {
36  
37          List<String> badURLs = new ArrayList<String>();
38  
39          String[] urls = preferences.getValues("urls", new String[0]);
40  
41          for (String url : urls) {
42              try {
43                  new URL(url);
44              }
45              catch (MalformedURLException murle) {
46                  badURLs.add(url);
47              }
48          }
49  
50          if (badURLs.size() > 0) {
51              throw new ValidatorException("Failed to retrieve URLs", badURLs);
52          }
53      }
54  
55  }