RSSConverter.java |
1 /** 2 * Copyright (c) 2000-2007 Liferay, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to deal 6 * in the Software without restriction, including without limitation the rights 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 * copies of the Software, and to permit persons to whom the Software is 9 * 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 */ 22 23 package com.liferay.portlet.rss.util; 24 25 import com.liferay.portal.util.WebCacheable; 26 import com.liferay.util.ConverterException; 27 import com.liferay.util.Time; 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="RSSConverter.java.html"><b><i>View Source</i></b></a> 37 * 38 * @author Brian Wing Shun Chan 39 * 40 */ 41 public class RSSConverter implements WebCacheable { 42 43 public RSSConverter(String url) { 44 _url = url; 45 } 46 47 public Object convert(String id) throws ConverterException { 48 SyndFeed feed = null; 49 50 try { 51 52 // com.liferay.util.Http will break the connection if it spends 53 // more than 5 seconds looking up a location. However, German 54 // umlauts do not get encoded correctly. This may be a bug with 55 // commons-httpclient or with how FeedParser uses 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(Http.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 ConverterException(_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 }