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package net.sourceforge.pebble.aggregator; |
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import com.sun.syndication.feed.WireFeed; |
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import com.sun.syndication.feed.atom.Content; |
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import com.sun.syndication.feed.atom.Entry; |
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import com.sun.syndication.feed.atom.Link; |
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import com.sun.syndication.feed.rss.Channel; |
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import com.sun.syndication.feed.rss.Item; |
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import com.sun.syndication.io.FeedException; |
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import com.sun.syndication.io.WireFeedInput; |
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import com.sun.syndication.io.XmlReader; |
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import net.sourceforge.pebble.domain.Blog; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import java.io.IOException; |
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import java.net.URL; |
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import java.util.*; |
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@author |
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| 0% |
Uncovered Elements: 108 (108) |
Complexity: 28 |
Complexity Density: 0,38 |
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public class NewsFeedCache { |
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private static final int FEED_ENTRY_LIMIT = 20; |
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private static final Log log = LogFactory.getLog(NewsFeedCache.class); |
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private static final NewsFeedCache instance = new NewsFeedCache(); |
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private final Map<String,Set<String>> subscriptions = new HashMap<String,Set<String>>(); |
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private final Map<String, NewsFeed> feeds = new HashMap<String, NewsFeed>(); |
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private final Map<String,List<NewsFeedEntry>> entries = new HashMap<String,List<NewsFeedEntry>>(); |
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| - |
Uncovered Elements: 0 (0) |
Complexity: 1 |
Complexity Density: - |
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private NewsFeedCache() {... |
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} |
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| 0% |
Uncovered Elements: 1 (1) |
Complexity: 1 |
Complexity Density: 1 |
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public static NewsFeedCache getInstance() {... |
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return instance; |
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} |
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| 0% |
Uncovered Elements: 9 (9) |
Complexity: 2 |
Complexity Density: 0,29 |
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public void addSubscription(Blog blog, String url) {... |
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synchronized (feeds) { |
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Set<String> urls = getUrls(blog.getId()); |
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urls.add(url); |
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NewsFeed feed = feeds.get(url); |
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if (feed == null) { |
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feed = updateFeed(url); |
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feeds.put(url, feed); |
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} |
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} |
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} |
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| 0% |
Uncovered Elements: 3 (3) |
Complexity: 1 |
Complexity Density: 0,33 |
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public void removeAllSubscriptions(Blog blog) {... |
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synchronized (feeds) { |
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Set<String> urls = getUrls(blog.getId()); |
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urls.clear(); |
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} |
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} |
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| 0% |
Uncovered Elements: 16 (16) |
Complexity: 3 |
Complexity Density: 0,21 |
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public void refreshFeeds() {... |
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for (String url : feeds.keySet()) { |
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try { |
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NewsFeed updatedFeed = updateFeed(url); |
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synchronized (feeds) { |
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feeds.put(url, updatedFeed); |
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} |
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} catch (Exception e) { |
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log.warn("Couldn't update feed from " + url, e); |
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} |
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} |
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for (String blogId : subscriptions.keySet()) { |
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List<NewsFeedEntry> entriesForBlog = new LinkedList<NewsFeedEntry>(); |
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for (String url : getUrls(blogId)) { |
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entriesForBlog.addAll(feeds.get(url).getEntries()); |
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} |
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Collections.sort(entriesForBlog, new NewsFeedEntryComparator()); |
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if (entriesForBlog.size() > FEED_ENTRY_LIMIT) { |
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entriesForBlog = entriesForBlog.subList(0, FEED_ENTRY_LIMIT); |
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} |
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entries.put(blogId, entriesForBlog); |
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} |
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} |
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| 0% |
Uncovered Elements: 56 (56) |
Complexity: 15 |
Complexity Density: 0,39 |
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private NewsFeed updateFeed(String url) {... |
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NewsFeed feed = new NewsFeed(url); |
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try { |
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log.debug("Refreshing feed from " + url); |
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WireFeedInput input = new WireFeedInput(true); |
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WireFeed wf = input.build(new XmlReader(new URL(url))); |
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if (wf.getFeedType() != null && wf.getFeedType().startsWith("rss")) { |
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Channel rssFeed = (Channel)wf; |
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feed.setTitle(rssFeed.getTitle()); |
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feed.setLink(rssFeed.getLink()); |
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for (Item item : (List<Item>)rssFeed.getItems()) { |
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NewsFeedEntry fe = new NewsFeedEntry( |
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item.getLink(), |
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item.getTitle(), |
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item.getDescription() != null ? item.getDescription().getValue() : "", |
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item.getAuthor(), |
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item.getPubDate() |
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); |
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feed.add(fe); |
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} |
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} else if (wf.getFeedType() != null && wf.getFeedType().startsWith("atom")) { |
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com.sun.syndication.feed.atom.Feed atomFeed = (com.sun.syndication.feed.atom.Feed)wf; |
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feed.setTitle(atomFeed.getTitle()); |
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for (Link link : (List<Link>)atomFeed.getAlternateLinks()) { |
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if ("text/html".equals(link.getType())) |
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feed.setLink(link.getHref()); |
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} |
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for (Entry entry : (List<Entry>)atomFeed.getEntries()) { |
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String href = ""; |
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for (Link link : (List<Link>)entry.getAlternateLinks()) { |
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if ("text/html".equals(link.getType())) |
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href = link.getHref(); |
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} |
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String body = null; |
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for (Content content : (List<Content>)entry.getContents()) { |
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if ("html".equals(content.getType())) |
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body = content.getValue(); |
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} |
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if (body == null) { |
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for (Content content : (List<Content>)entry.getSummary()) { |
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if ("html".equals(content.getType())) |
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body = content.getValue(); |
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} |
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} |
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String author = entry.getAuthors() != null && entry.getAuthors().size() > 0 ? entry.getAuthors().get(0).toString() : ""; |
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NewsFeedEntry fe = new NewsFeedEntry( |
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href, |
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entry.getTitle(), |
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body, |
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author, |
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entry.getPublished() |
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); |
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feed.add(fe); |
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} |
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} |
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log.debug("Refreshed feed from " + url); |
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} catch (FeedException e) { |
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log.warn("Error while updating feed from " + url, e); |
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} catch (IOException e) { |
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log.warn("Error while updating feed from " + url, e); |
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} |
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return feed; |
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} |
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| 0% |
Uncovered Elements: 1 (1) |
Complexity: 1 |
Complexity Density: 1 |
|
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public NewsFeed getFeed(String url) {... |
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return feeds.get(url); |
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} |
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| 0% |
Uncovered Elements: 6 (6) |
Complexity: 2 |
Complexity Density: 0,5 |
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public List<NewsFeedEntry> getNewsFeedEntries(Blog blog) {... |
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List<NewsFeedEntry> list = entries.get(blog.getId()); |
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if (list == null) { |
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list = new LinkedList<NewsFeedEntry>(); |
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} |
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return list; |
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} |
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| 0% |
Uncovered Elements: 7 (7) |
Complexity: 2 |
Complexity Density: 0,4 |
|
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private Set<String> getUrls(String blogId) {... |
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Set<String> urls = subscriptions.get(blogId); |
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if (urls == null) { |
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urls = new HashSet<String>(); |
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subscriptions.put(blogId, urls); |
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} |
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return urls; |
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} |
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} |