| RSSWebCacheItem.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * The contents of this file are subject to the terms of the Liferay Enterprise
5 * Subscription License ("License"). You may not use this file except in
6 * compliance with the License. You can obtain a copy of the License by
7 * contacting Liferay, Inc. See the License for the specific language governing
8 * permissions and limitations under the License, including but not limited to
9 * distribution rights of the Software.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 */
19
20 package com.liferay.portlet.rss.util;
21
22 import com.liferay.portal.kernel.util.Time;
23 import com.liferay.portal.kernel.webcache.WebCacheException;
24 import com.liferay.portal.kernel.webcache.WebCacheItem;
25
26 import com.sun.syndication.feed.synd.SyndFeed;
27 import com.sun.syndication.io.SyndFeedInput;
28 import com.sun.syndication.io.XmlReader;
29
30 import java.net.URL;
31
32 /**
33 * <a href="RSSWebCacheItem.java.html"><b><i>View Source</i></b></a>
34 *
35 * @author Brian Wing Shun Chan
36 *
37 */
38 public class RSSWebCacheItem implements WebCacheItem {
39
40 public RSSWebCacheItem(String url) {
41 _url = url;
42 }
43
44 public Object convert(String key) throws WebCacheException {
45 SyndFeed feed = null;
46
47 try {
48
49 // com.liferay.portal.kernel.util.HttpUtil will break the connection
50 // if it spends more than 5 seconds looking up a location. However,
51 // German umlauts do not get encoded correctly. This may be a bug
52 // with commons-httpclient or with how FeedParser uses
53 // 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(HttpUtil.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 }
68 catch (Exception e) {
69 throw new WebCacheException(_url + " " + e.toString());
70 }
71
72 return feed;
73 }
74
75 public long getRefreshTime() {
76 return _REFRESH_TIME;
77 }
78
79 private static final long _REFRESH_TIME = Time.MINUTE * 20;
80
81 private String _url;
82
83 }