package com.google.code.rsser.dao.rome;import java.io.IOException;import java.net.MalformedURLException;import java.net.URL;import java.util.ArrayList;import org.springframework.stereotype.Repository;import com.google.code.rsser.dao.RemoteFeedDAO;import com.google.code.rsser.exception.InvalidFeedException;import com.google.code.rsser.model.RemoteEntry;import com.google.code.rsser.model.RemoteFeed;import com.sun.syndication.feed.synd.SyndContent;import com.sun.syndication.feed.synd.SyndEntry;import com.sun.syndication.feed.synd.SyndFeed;import com.sun.syndication.fetcher.FeedFetcher;import com.sun.syndication.fetcher.FetcherException;import com.sun.syndication.fetcher.impl.HttpURLFeedFetcher;import com.sun.syndication.io.FeedException;@Repository("remoteFeedDAO")public class RomeRemoteFeedDAO implements RemoteFeedDAO {		private String parseContent(SyndContent content) {		if (content != null) {			return content.getValue();		}				return null;	}	public RemoteFeed fetch(String url) throws InvalidFeedException {		FeedFetcher feedFetcher = new HttpURLFeedFetcher();		feedFetcher.setUsingDeltaEncoding(true);				RemoteFeed remoteFeed = new RemoteFeed();				try {			SyndFeed feed = feedFetcher.retrieveFeed(new URL(url));						remoteFeed.setUrl(feed.getLink());			remoteFeed.setTitle(feed.getTitle());			remoteFeed.setDescription(feed.getDescription());			remoteFeed.setEntries(new ArrayList<RemoteEntry>());						for (Object o : feed.getEntries()) {				SyndEntry entry = (SyndEntry) o;								RemoteEntry remoteEntry = new RemoteEntry();				remoteEntry.setDate(entry.getPublishedDate());				remoteEntry.setDescription(parseContent(entry.getDescription()));				remoteEntry.setTitle(entry.getTitle());				remoteEntry.setUrl(entry.getLink());								remoteFeed.getEntries().add(remoteEntry);			}						return remoteFeed;		} catch (MalformedURLException e) {			throw new InvalidFeedException("Wrong URL", e);		} catch (IOException e) {			throw new InvalidFeedException("Cannot retrieve", e);		} catch (FeedException e) {			throw new InvalidFeedException("Cannot prepare feed", e);		} catch (FetcherException e) {			throw new InvalidFeedException("Cannot fetch", e);		}	}}