1 /* NotOnHostsDecideRule
2 *
3 * $Id: NotOnHostsDecideRule.java 4649 2006-09-25 17:16:55Z paul_jack $
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 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 object) {
62 boolean superDecision = super.evaluate(object);
63 return !superDecision;
64 }
65 }