| RSSWebCacheItem.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 *
5 *
6 *
7 * The contents of this file are subject to the terms of the Liferay Enterprise
8 * Subscription License ("License"). You may not use this file except in
9 * compliance with the License. You can obtain a copy of the License by
10 * contacting Liferay, Inc. See the License for the specific language governing
11 * permissions and limitations under the License, including but not limited to
12 * distribution rights 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 */
22
23 package com.liferay.portlet.rss.util;
24
25 import com.liferay.portal.kernel.util.Time;
26 import com.liferay.portal.kernel.webcache.WebCacheException;
27 import com.liferay.portal.kernel.webcache.WebCacheItem;
28
29 import com.sun.syndication.feed.synd.SyndFeed;
30 import com.sun.syndication.io.SyndFeedInput;
31 import com.sun.syndication.io.XmlReader;
32
33 import java.net.URL;
34
35 /**
36 * <a href="RSSWebCacheItem.java.html"><b><i>View Source</i></b></a>
37 *
38 * @author Brian Wing Shun Chan
39 */
40 public class RSSWebCacheItem implements WebCacheItem {
41
42 public RSSWebCacheItem(String url) {
43 _url = url;
44 }
45
46 public Object convert(String key) throws WebCacheException {
47 SyndFeed feed = null;
48
49 try {
50
51 // com.liferay.portal.kernel.util.HttpUtil will break the connection
52 // if it spends more than 5 seconds looking up a location. However,
53 // German umlauts do not get encoded correctly. This may be a bug
54 // with commons-httpclient or with how FeedParser uses
55 // java.io.Reader.
56
57 // Use http://xml.newsisfree.com/feeds/29/629.xml and
58 // http://test.domosoft.com/up/RSS to test if German umlauts show
59 // up correctly.
60
61 /*Reader reader = new StringReader(
62 new String(HttpUtil.URLtoByteArray(_url)));
63
64 channel = FeedParser.parse(builder, reader);*/
65
66 SyndFeedInput input = new SyndFeedInput();
67
68 feed = input.build(new XmlReader(new URL(_url)));
69 }
70 catch (Exception e) {
71 throw new WebCacheException(_url + " " + e.toString());
72 }
73
74 return feed;
75 }
76
77 public long getRefreshTime() {
78 return _REFRESH_TIME;
79 }
80
81 private static final long _REFRESH_TIME = Time.MINUTE * 20;
82
83 private String _url;
84
85 }