1 /*
2 * Copyright (c) 2002-2014, Mairie de Paris
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice
10 * and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice
13 * and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 * License 1.0
33 */
34 package fr.paris.lutece.plugins.rss.service.type;
35
36 import com.sun.syndication.feed.WireFeed;
37
38 import fr.paris.lutece.plugins.rss.service.RssPlugin;
39 import fr.paris.lutece.portal.business.rss.IFeedResource;
40 import fr.paris.lutece.portal.service.spring.SpringContextService;
41
42 import java.util.List;
43
44
45 /**
46 *
47 * FeedTypeManager
48 *
49 */
50 public final class FeedTypeManager
51 {
52 private static final String BEAN_FEED_TYPE_MANAGER = "rss.feedTypeManager";
53 private List<IFeedTypeProvider> _listDefaultProviders;
54 private List<IFeedTypeProvider> _listProviders;
55
56 /**
57 * Get the instance of the manager
58 * @return the manager
59 */
60 public static FeedTypeManager getManager( )
61 {
62 return (FeedTypeManager) SpringContextService.getPluginBean( RssPlugin.PLUGIN_NAME, BEAN_FEED_TYPE_MANAGER );
63 }
64
65 /**
66 * Set the list of providers
67 * @param listProviders the list of providers
68 */
69 public void setProvidersList( List<IFeedTypeProvider> listProviders )
70 {
71 _listProviders = listProviders;
72 }
73
74 /**
75 * Set the default providers list
76 * @param listDefaultProviders the default providers list
77 */
78 public void setDefaultProvidersList( List<IFeedTypeProvider> listDefaultProviders )
79 {
80 _listDefaultProviders = listDefaultProviders;
81 }
82
83 /**
84 * Get the wire feed
85 * @param strFeedType the feed type
86 * @param resource the resource
87 * @param strEncoding the encoding
88 * @param nMaxItems the max items
89 * @return the wire feed
90 */
91 public WireFeed getWireFeed( String strFeedType, IFeedResource resource, String strEncoding, int nMaxItems )
92 {
93 // Get from providers first
94 for ( IFeedTypeProvider provider : _listProviders )
95 {
96 if ( provider.isInvoked( strFeedType ) )
97 {
98 return provider.getWireFeed( strFeedType, resource, strEncoding, nMaxItems );
99 }
100 }
101
102 // If no providers are invoked, then get from default providers
103 for ( IFeedTypeProvider defaultProvider : _listDefaultProviders )
104 {
105 if ( defaultProvider.isInvoked( strFeedType ) )
106 {
107 return defaultProvider.getWireFeed( strFeedType, resource, strEncoding, nMaxItems );
108 }
109 }
110
111 return null;
112 }
113 }