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Java > Open Source Codes > de > nava > informa > utils > SimpleChannelObserver


1 //
2 // Informa -- RSS Library for Java
3 // Copyright (c) 2002 by Niko Schmuck
4 //
5 // Niko Schmuck
6 // http://sourceforge.net/projects/informa
7 // mailto:niko_schmuck@users.sourceforge.net
8 //
9 // This library is free software.
10 //
11 // You may redistribute it and/or modify it under the terms of the GNU
12 // Lesser General Public License as published by the Free Software Foundation.
13 //
14 // Version 2.1 of the license should be included with this distribution in
15 // the file LICENSE. If the license is not included with this distribution,
16 // you may find a copy at the FSF web site at 'www.gnu.org' or 'www.fsf.org',
17 // or you may write to the Free Software Foundation, 675 Mass Ave, Cambridge,
18 // MA 02139 USA.
19 //
20 // This library is distributed in the hope that it will be useful,
21 // but WITHOUT ANY WARRANTY; without even the implied waranty of
22 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 // Lesser General Public License for more details.
24 //
25
26
27 // $Id: SimpleChannelObserver.java,v 1.8 2003/04/06 17:30:36 niko_schmuck Exp $
28
29 package de.nava.informa.utils;
30
31 import org.apache.commons.logging.Log;
32 import org.apache.commons.logging.LogFactory;
33 import de.nava.informa.core.ChannelIF;
34 import de.nava.informa.core.ItemIF;
35 import de.nava.informa.core.ChannelObserverIF;
36
37 /**
38  * Simple implementation of the ChannelOberserverIF interface for
39  * keeping track of the added news item (and also to properly handle
40  * it by the logging facility).
41  *
42  * @author Niko Schmuck (niko@nava.de)
43  */
44 public class SimpleChannelObserver implements ChannelObserverIF {
45
46   private static Log logger = LogFactory.getLog(SimpleChannelObserver.class);
47
48   private ItemIF myAddedItem;
49
50   public SimpleChannelObserver() {
51     super();
52   }
53   
54   public ItemIF getMyAddedItem() {
55     return myAddedItem;
56   }
57
58   // ------------------------------------------------------------
59 // Implementation of ChannelObserverIF
60 // ------------------------------------------------------------
61
62   public void itemAdded(ItemIF newItem) {
63     myAddedItem = newItem;
64     logger.info("A new item was added: " + newItem);
65   }
66
67   public void channelRetrieved(ChannelIF channel) {
68     logger.info("Channel " + channel + " updated.");
69   }
70   
71 }
72
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