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Java > Open Source Codes > org > snipsnap > semanticweb > rss > NewCommentFeeder


1 /*
2  * This file is part of "SnipSnap Radeox Rendering Engine".
3  *
4  * Copyright (c) 2002 Stephan J. Schmidt, Matthias L. Jugel
5  * All Rights Reserved.
6  *
7  * Please visit http://radeox.org/ for updates and contact.
8  *
9  * --LICENSE NOTICE--
10  * This library is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * This library is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with this library; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23  * --LICENSE NOTICE--
24  */
25
26 package org.snipsnap.semanticweb.rss;
27
28 import org.snipsnap.snip.Blog;
29 import org.snipsnap.snip.SnipSpaceFactory;
30 import org.snipsnap.snip.Snip;
31 import org.snipsnap.snip.SnipSpace;
32 import org.snipsnap.snip.storage.query.QueryKit;
33 import org.snipsnap.snip.storage.query.Query;
34 import org.snipsnap.app.Application;
35 import org.snipsnap.feeder.Feeder;
36
37 import java.util.List JavaDoc;
38
39 /*
40  * Generates a feed of comment snips from a space which can then be
41  * serialized to RSS, RDF, Atom, ...
42  *
43  * @author stephan
44  * @team sonicteam
45  * @version $Id: NewCommentFeeder.java 1606 2004-05-17 10:56:18Z leo $
46  */
47
48 public class NewCommentFeeder implements Feeder {
49   private SnipSpace space;
50   private String JavaDoc snipName;
51   private Query commentQuery = new Query() {
52       public boolean fit(Object JavaDoc object) {
53         return isComment((Snip) object);
54       }
55     };
56
57   public NewCommentFeeder() {
58     this(Application.get().getConfiguration().getStartSnip());
59   }
60
61   public NewCommentFeeder(String JavaDoc snipName) {
62     this.snipName = snipName;
63     space = SnipSpaceFactory.getInstance();
64   }
65
66   public String JavaDoc getName() {
67     return "comments";
68   }
69
70   public List JavaDoc getFeed() {
71     List JavaDoc changed = space.getChanged();
72     return QueryKit.query(changed, commentQuery);
73   }
74
75   public Snip getContextSnip() {
76     return space.load(snipName);
77   }
78
79   public boolean isComment(Snip snip) {
80     return (snip.getName().indexOf("comment") >=0);
81   }
82 }
83
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