01: /*
02: JSPWiki - a JSP-based WikiWiki clone.
03:
04: Copyright (C) 2001-2002 Janne Jalkanen (Janne.Jalkanen@iki.fi)
05:
06: This program is free software; you can redistribute it and/or modify
07: it under the terms of the GNU Lesser General Public License as published by
08: the Free Software Foundation; either version 2.1 of the License, or
09: (at your option) any later version.
10:
11: This program is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU Lesser General Public License for more details.
15:
16: You should have received a copy of the GNU Lesser General Public License
17: along with this program; if not, write to the Free Software
18: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19: */
20: package com.ecyrd.jspwiki.plugin;
21:
22: import org.apache.log4j.Logger;
23: import com.ecyrd.jspwiki.*;
24: import java.util.*;
25:
26: /**
27: * Plugin for displaying pages that are not linked to in other pages.
28: * Uses the ReferenceManager.
29: * <p>
30: * Parameters: none. <BR>
31: * From AbstractReferralPlugin:<BR>
32: * separator: How to separate generated links; default is a wikitext line break,
33: * producing a vertical list.<BR>
34: * maxwidth: maximum width, in chars, of generated links.
35: *
36: * @author Janne Jalkanen
37: */
38: public class UnusedPagesPlugin extends AbstractReferralPlugin {
39: private static Logger log = Logger
40: .getLogger(UnusedPagesPlugin.class);
41:
42: public String execute(WikiContext context, Map params)
43: throws PluginException {
44: ReferenceManager refmgr = context.getEngine()
45: .getReferenceManager();
46: Collection links = refmgr.findUnreferenced(m_wiki);
47:
48: super .initialize(context, params);
49:
50: TreeSet sortedSet = new TreeSet();
51:
52: sortedSet.addAll(links);
53:
54: String wikitext = wikitizeCollection(sortedSet, m_separator,
55: ALL_ITEMS);
56:
57: return makeHTML(context, wikitext);
58: }
59:
60: }
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