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


1 // InformaClient -- RSS Client Based on Informa
2 // Copyright (c) 2002 by Pito Salas
3 //
4 // Pito Salas
5 // http://sourceforge.net/projects/informa
6 // mailto:pito_salas@users.sourceforge.net
7 //
8 // This library is free software.
9 //
10 // You may redistribute it and/or modify it under the terms of the GNU
11 // Lesser General Public License as published by the Free Software Foundation.
12 //
13 // Version 2.1 of the license should be included with this distribution in
14 // the file LICENSE. If the license is not included with this distribution,
15 // you may find a copy at the FSF web site at 'www.gnu.org' or 'www.fsf.org',
16 // or you may write to the Free Software Foundation, 675 Mass Ave, Cambridge,
17 // MA 02139 USA.
18 //
19 // This library is distributed in the hope that it will be useful,
20 // but WITHOUT ANY WARRANTY; without even the implied waranty of
21 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 // Lesser General Public License for more details..
23 //
24 package de.nava.informa.utils;
25
26 import de.nava.informa.core.*;
27 import de.nava.informa.core.ChannelIF;
28
29 /**
30  * InformaUtils - description...
31  *
32  */
33 public class InformaUtils {
34
35   /**
36     * Copies all the top level properties from <code>sourceChan</code> into
37     * this <code>updChan</code>. Convience method to update basic channel
38     * properties (like title and description) in one call.
39     *
40     * <b>Important:</b> Location and Format is unchanged by this operation.
41     *
42     * @TODO: Tricky. There is a bug here that has to be fixed. Channel Properties
43     * which are actually pointers to other objects (e.g. Cloud) cannot be simply
44     * copied because during channel and item parsing, we first parse the stream
45     * into a basic (e.g. impl.basic.Cloud) object, which then gets subsequently copied
46     * by this method into a persistent (e.g. impl.hibernate.Cloud) object.
47     *
48     * I think the solution to this is to pass a ChannelBuilder into this method
49     * which is used to create the right type of duplicates of the objects instead
50     * of just copying the references. For now I will be skipping those. A similar
51     * kind of problem probably exists when copying item properties.
52     *
53     */
54    public static void copyChannelProperties(ChannelIF sourceChan, ChannelIF updChan) {
55      updChan.setTitle(sourceChan.getTitle());
56      updChan.setDescription(sourceChan.getDescription());
57      updChan.setSite(sourceChan.getSite());
58      updChan.setCreator(sourceChan.getCreator());
59      updChan.setCopyright(sourceChan.getCopyright());
60      updChan.setPublisher(sourceChan.getPublisher());
61      updChan.setLanguage(sourceChan.getLanguage());
62      updChan.setRating(sourceChan.getRating());
63      updChan.setGenerator(sourceChan.getGenerator());
64      updChan.setDocs(sourceChan.getDocs());
65      updChan.setTtl(sourceChan.getTtl());
66      updChan.setLastBuildDate(sourceChan.getLastBuildDate());
67      updChan.setUpdateBase(sourceChan.getUpdateBase());
68      updChan.setUpdateFrequency(sourceChan.getUpdateFrequency());
69      updChan.setUpdatePeriod(sourceChan.getUpdatePeriod());
70      updChan.setPubDate(sourceChan.getPubDate());
71
72 // updChan.setTextInput(sourceChan.getTextInput());
73 // updChan.setCloud(sourceChan.getCloud());
74 // updChan.setImage(sourceChan.getImage());
75 }
76
77    /**
78    * Analogous function to copy all the properties of an item to another one.
79    *
80    * @param src - Source ItemIF
81    * @param dest - Destination ItemIF
82    */
83   public static void copyItemProperties(ItemIF src, ItemIF dest)
84    {
85      dest.setTitle(src.getTitle());
86      dest.setDescription(src.getDescription());
87      dest.setLink(src.getLink());
88      dest.setCreator(src.getCreator());
89      dest.setSubject(src.getSubject());
90      dest.setDate(src.getDate());
91      dest.setFound(src.getFound());
92      dest.setUnRead(src.getUnRead());
93    }
94 }
95
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