01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * furnished to do so, subject to the following conditions:
10: *
11: * The above copyright notice and this permission notice shall be included in
12: * all copies or substantial portions of the Software.
13: *
14: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17: * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19: * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20: * SOFTWARE.
21: */package com.liferay.portlet.rss.util;
22:
23: import com.liferay.portal.kernel.webcache.WebCacheException;
24: import com.liferay.portal.kernel.webcache.WebCacheItem;
25: import com.liferay.util.Time;
26:
27: import com.sun.syndication.feed.synd.SyndFeed;
28: import com.sun.syndication.io.SyndFeedInput;
29: import com.sun.syndication.io.XmlReader;
30:
31: import java.net.URL;
32:
33: /**
34: * <a href="RSSWebCacheItem.java.html"><b><i>View Source</i></b></a>
35: *
36: * @author Brian Wing Shun Chan
37: *
38: */
39: public class RSSWebCacheItem implements WebCacheItem {
40:
41: public RSSWebCacheItem(String url) {
42: _url = url;
43: }
44:
45: public Object convert(String key) throws WebCacheException {
46: SyndFeed feed = null;
47:
48: try {
49:
50: // com.liferay.util.Http will break the connection if it spends
51: // more than 5 seconds looking up a location. However, German
52: // umlauts do not get encoded correctly. This may be a bug with
53: // commons-httpclient or with how FeedParser uses java.io.Reader.
54:
55: // Use http://xml.newsisfree.com/feeds/29/629.xml and
56: // http://test.domosoft.com/up/RSS to test if German umlauts show
57: // up correctly.
58:
59: /*Reader reader = new StringReader(
60: new String(Http.URLtoByteArray(_url)));
61:
62: channel = FeedParser.parse(builder, reader);*/
63:
64: SyndFeedInput input = new SyndFeedInput();
65:
66: feed = input.build(new XmlReader(new URL(_url)));
67: } catch (Exception e) {
68: throw new WebCacheException(_url + " " + e.toString());
69: }
70:
71: return feed;
72: }
73:
74: public long getRefreshTime() {
75: return _REFRESH_TIME;
76: }
77:
78: private static final long _REFRESH_TIME = Time.MINUTE * 20;
79:
80: private String _url;
81:
82: }
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