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


1 /* NotOnHostsDecideRule
2 *
3 * $Id: NotOnHostsDecideRule.java,v 1.3.4.1 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
30  * are *not* on one of the hosts in the configured set of
31  * hosts, filled from the seed set.
32  *
33  * @author gojomo
34  */

35 public class NotOnHostsDecideRule extends OnHostsDecideRule {
36
37     private static final long serialVersionUID = 1512825197255050412L;
38
39     //private static final Logger logger =
40
// Logger.getLogger(NotOnHostsDecideRule.class.getName());
41
/**
42      * Usual constructor.
43      * @param name
44      */

45     public NotOnHostsDecideRule(String JavaDoc name) {
46         super(name);
47         setDescription(
48                 "NotOnHostsDecideRule. Makes the configured decision " +
49                 "for any URI which is *not* on one of the hosts in the " +
50                 "configured set of hostnames (derived from the seed" +
51                 "list).");
52     }
53
54     /**
55      * Evaluate whether given object's URI is NOT in the set of
56      * hosts -- simply reverse superclass's determination
57      *
58      * @param object Object to evaluate
59      * @return true if URI not in set
60      */

61     protected boolean evaluate(Object JavaDoc object) {
62         boolean superDecision = super.evaluate(object);
63         return !superDecision;
64     }
65 }
66
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