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Java > Open Source Codes > net > jforum > util > rss > ForumRSS


1 /*
2  * Copyright (c) 2003, Rafael Steil
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms,
6  * with or without modification, are permitted provided
7  * that the following conditions are met:
8  *
9  * 1) Redistributions of source code must retain the above
10  * copyright notice, this list of conditions and the
11  * following disclaimer.
12  * 2) Redistributions in binary form must reproduce the
13  * above copyright notice, this list of conditions and
14  * the following disclaimer in the documentation and/or
15  * other materials provided with the distribution.
16  * 3) Neither the name of "Rafael Steil" nor
17  * the names of its contributors may be used to endorse
18  * or promote products derived from this software without
19  * specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
22  * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
23  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
24  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
27  * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
32  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
34  * IN CONTRACT, STRICT LIABILITY, OR TORT
35  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
36  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
37  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
38  *
39  * This file creation date: 31/01/2004 - 19:22:42
40  * The JForum Project
41  * http://www.jforum.net
42  */
43 package net.jforum.util.rss;
44
45
46 import java.util.Iterator JavaDoc;
47 import java.util.List JavaDoc;
48
49 import net.jforum.entities.Category;
50 import net.jforum.entities.Forum;
51 import net.jforum.entities.LastPostInfo;
52 import net.jforum.repository.ForumRepository;
53 import net.jforum.util.I18n;
54 import net.jforum.util.preferences.ConfigKeys;
55 import net.jforum.util.preferences.SystemGlobals;
56 import net.jforum.view.forum.common.ViewCommon;
57
58 import org.apache.log4j.Logger;
59
60 /**
61  * @author Rafael Steil
62  * @version $Id: ForumRSS.java,v 1.17 2005/07/26 03:04:38 rafaelsteil Exp $
63  */
64 public class ForumRSS extends GenericRSS
65 {
66     private static final Logger logger = Logger.getLogger(ForumRSS.class);
67     
68     private List JavaDoc categories;
69     private RSS rss;
70     private String JavaDoc forumLink;
71     
72     public ForumRSS(String JavaDoc title, String JavaDoc description, List JavaDoc categories)
73     {
74         this.categories = categories;
75         this.forumLink = ViewCommon.getForumLink();
76         
77         this.rss = new RSS(title, description,
78                 SystemGlobals.getValue(ConfigKeys.ENCODING ),
79                 this.forumLink);
80         
81         this.prepareRSS();
82     }
83     
84     private void prepareRSS()
85     {
86         try {
87             for (Iterator JavaDoc iter = this.categories.iterator(); iter.hasNext(); ) {
88                 Category category = (Category)iter.next();
89                 
90                 for (Iterator JavaDoc fIter = category.getForums().iterator(); fIter.hasNext(); ) {
91                     Forum forum = (Forum)fIter.next();
92                     
93                     LastPostInfo info = ForumRepository.getLastPostInfo(forum.getId());
94                     
95                     RSSItem item = new RSSItem();
96                     item.addCategory(category.getName());
97                     item.setTitle(forum.getName());
98                     item.setDescription(forum.getDescription());
99                     item.setContentType(RSSAware.CONTENT_HTML);
100                     item.setLink(this.forumLink
101                             + "forums/show/" + forum.getId()
102                             + SystemGlobals.getValue(ConfigKeys.SERVLET_EXTENSION));
103                     
104                     String JavaDoc author = info.getUsername();
105                     
106                     item.setAuthor(author != null ? author : I18n.getMessage("Guest"));
107                     
108                     String JavaDoc date = info.getPostDate();
109                     item.setPublishDate(date != null ? RSSUtils.formatDate(date) : "");
110                     
111                     this.rss.addItem(item);
112                 }
113             }
114         }
115         catch (Exception JavaDoc e) {
116             logger.warn("Error while generating rss for forums: " + e);
117             e.printStackTrace();
118         }
119         
120         super.setRSS(this.rss);
121     }
122 }
123
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