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Java > Open Source Codes > org > archive > crawler > scope > RefinedScope


1 /* RefinedScope
2 *
3 * $Id: RefinedScope.java,v 1.2.18.1 2007/01/13 01:31:25 stack-sf Exp $
4 *
5 * Created on Jul 16, 2004
6 *
7 * Copyright (C) 2004 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.scope;
26
27
28 import org.archive.crawler.framework.Filter;
29
30 /**
31  * Superclass for Scopes which make use of "additional focus"
32  * to add items by pattern, or want to swap in alternative
33  * transitive filter.
34  *
35  * @author gojomo
36  */
37 public abstract class RefinedScope extends ClassicScope {
38     public static final String JavaDoc ATTR_TRANSITIVE_FILTER = "transitiveFilter";
39     public static final String JavaDoc ATTR_ADDITIONAL_FOCUS_FILTER =
40         "additionalScopeFocus";
41
42     Filter additionalFocusFilter;
43     Filter transitiveFilter;
44
45     @SuppressWarnings JavaDoc("deprecation")
46     public RefinedScope(String JavaDoc name) {
47         super(name);
48
49         this.additionalFocusFilter = (Filter) addElementToDefinition(
50                 new org.archive.crawler.filter.FilePatternFilter(
51                         ATTR_ADDITIONAL_FOCUS_FILTER));
52         this.transitiveFilter = (Filter) addElementToDefinition(
53                 new org.archive.crawler.filter.TransclusionFilter(
54                         ATTR_TRANSITIVE_FILTER));
55     }
56
57     /**
58      * @param o
59      * @return True if transitive filter accepts passed object.
60      */
61     protected boolean transitiveAccepts(Object JavaDoc o) {
62         return this.transitiveFilter.accepts(o);
63     }
64     
65     protected boolean additionalFocusAccepts(Object JavaDoc o) {
66         return additionalFocusFilter.accepts(o);
67     }
68 }
69
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