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Java > Open Source Codes > websphinx > workbench > TitlePredicate


1 /*
2  * WebSphinx web-crawling toolkit
3  *
4  * Copyright (c) 1998-2002 Carnegie Mellon University. All rights
5  * reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  *
11  * 1. Redistributions of source code must retain the above copyright
12  * notice, this list of conditions and the following disclaimer.
13  *
14  * 2. Redistributions in binary form must reproduce the above copyright
15  * notice, this list of conditions and the following disclaimer in
16  * the documentation and/or other materials provided with the
17  * distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
20  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
23  * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  *
31  */
32
33 package websphinx.workbench;
34
35 import websphinx.*;
36
37 public class TitlePredicate implements PagePredicate {
38     
39     Pattern pattern;
40     
41     public TitlePredicate (Pattern pattern) {
42         this.pattern = pattern;
43     }
44
45     public boolean equals (Object JavaDoc object) {
46         if (! (object instanceof TitlePredicate))
47             return false;
48         TitlePredicate p = (TitlePredicate)object;
49         return p.pattern.equals (pattern);
50     }
51     
52     public Pattern getPattern () {
53         return pattern;
54     }
55     
56     public void connected (Crawler crawler) {}
57     public void disconnected (Crawler crawler) {}
58     
59     public boolean shouldActOn (Page page) {
60         try {
61             return pattern.found (page.getTitle());
62         } catch (NullPointerException JavaDoc e) {
63             return false;
64         }
65     }
66 }
67
68
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