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Java > Open Source Codes > org > archive > crawler > deciderules > NotSurtPrefixedDecideRule


1 /* NotSurtPrefixedDecideRule
2 *
3 * $Id: NotSurtPrefixedDecideRule.java,v 1.2.18.1 2007/01/13 01:31:15 stack-sf Exp $
4 *
5 * Created on Apr 5, 2005
6 *
7 * Copyright (C) 2005 Internet Archive.
8 *
9 * This file is part of the Heritrix web crawler (crawler.archive.org).
10 *
11 * Heritrix is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser Public License as published by
13 * the Free Software Foundation; either version 2.1 of the License, or
14 * any later version.
15 *
16 * Heritrix is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser Public License
22 * along with Heritrix; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 */
25 package org.archive.crawler.deciderules;
26
27
28 /**
29  * Rule applies configured decision to any URIs that, when
30  * expressed in SURT form, do *not* begin with one of the prefixes
31  * in the configured set.
32  *
33  * The set can be filled with SURT prefixes implied or
34  * listed in the seeds file, or another external file.
35  *
36  * @author gojomo
37  */
38 public class NotSurtPrefixedDecideRule extends SurtPrefixedDecideRule {
39
40     private static final long serialVersionUID = -7491388438128566377L;
41
42     //private static final Logger logger =
43 // Logger.getLogger(NotSurtPrefixedDecideRule.class.getName());
44 /**
45      * Usual constructor.
46      * @param name
47      */
48     public NotSurtPrefixedDecideRule(String JavaDoc name) {
49         super(name);
50         setDescription(
51                  "NotSurtPrefixedDecideRule. Makes the configured decision " +
52                  "for any URI which, when expressed in SURT form, does *not* " +
53                  "begin with the established prefixes (from either seeds " +
54                  "specification or an external file).");
55     }
56
57     /**
58      * Evaluate whether given object's URI is NOT in the SURT
59      * prefix set -- simply reverse superclass's determination
60      *
61      * @param object
62      * @return true if regexp is matched
63      */
64     protected boolean evaluate(Object JavaDoc object) {
65         return !super.evaluate(object);
66     }
67 }
68
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