1 /**
2 * This file Copyright (c) 2015-2016 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.module.rssaggregator.importhandler;
35
36 import info.magnolia.module.rssaggregator.util.Assert;
37
38 import java.net.URL;
39
40 import org.slf4j.Logger;
41 import org.slf4j.LoggerFactory;
42
43 import com.rometools.fetcher.FeedFetcher;
44 import com.rometools.rome.feed.synd.SyndFeed;
45
46 /**
47 * Task that fetches the given feed for the given {@code channel}. When the feed is fetched properly, the {@link
48 * FeedChannel#feed feed} property will be set with the result, otherwise it will be {@code null}.
49 */
50 public class DefaultFeedChannelFetchTask implements Runnable {
51
52 private static final Logger log = LoggerFactory.getLogger(DefaultFeedChannelFetchTask.class);
53
54 private final FeedChannel channel;
55 private final String aggregateName;
56 private FeedFetcher feedFetcher;
57
58 public DefaultFeedChannelFetchTask(FeedFetcher feedFetcher, FeedChannel feedChannel, String aggregateName) {
59 Assert.notNull(feedFetcher, "'feedFetcher' must not be null");
60 Assert.notNull(feedChannel, "'feedChannel' must not be null");
61 Assert.notNull(aggregateName, "'aggregateName' must not be null");
62 this.feedFetcher = feedFetcher;
63 this.channel = feedChannel;
64 this.aggregateName = aggregateName;
65 }
66
67 @Override
68 public void run() {
69 final long threadId = Thread.currentThread().getId();
70 try {
71 log.debug("Fetching feed channel '{}' for aggregate '{}' (Thread {})", channel.getUrl(), aggregateName, threadId);
72 SyndFeed feed = feedFetcher.retrieveFeed(new URL(channel.getUrl()));
73 if (feed != null) {
74 channel.setFeed(feed);
75 log.debug("Fetched feed channel '{}' for aggregate '{}' (Thread {})", channel.getUrl(), aggregateName, threadId);
76 }
77 } catch (Exception e) {
78 log.error("Failed to fetch result for channel '{}' for aggregate '{}' (Thread {}): {}", channel.getUrl(), aggregateName, threadId, e);
79 }
80 }
81 }