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package de.test.antennapod.util.syndication.feedgenerator;
import android.util.Xml;
import org.xmlpull.v1.XmlSerializer;
import java.io.IOException;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Locale;
import de.danoeh.antennapod.model.feed.Feed;
import de.danoeh.antennapod.model.feed.FeedFunding;
import de.danoeh.antennapod.model.feed.FeedItem;
import de.danoeh.antennapod.parser.feed.namespace.PodcastIndex;
/**
* Creates RSS 2.0 feeds. See FeedGenerator for more information.
*/
public class Rss2Generator implements FeedGenerator {
public static final long FEATURE_WRITE_GUID = 1;
@Override
public void writeFeed(Feed feed, OutputStream outputStream, String encoding, long flags) throws IOException {
if (feed == null) {
throw new IllegalArgumentException("feed = null");
} else if (outputStream == null) {
throw new IllegalArgumentException("outputStream = null");
} else if (encoding == null) {
throw new IllegalArgumentException("encoding = null");
}
XmlSerializer xml = Xml.newSerializer();
xml.setOutput(outputStream, encoding);
xml.startDocument(encoding, null);
xml.setPrefix("atom", "http://www.w3.org/2005/Atom");
xml.startTag(null, "rss");
xml.attribute(null, "version", "2.0");
xml.startTag(null, "channel");
// Write Feed data
if (feed.getTitle() != null) {
xml.startTag(null, "title");
xml.text(feed.getTitle());
xml.endTag(null, "title");
}
if (feed.getDescription() != null) {
xml.startTag(null, "description");
xml.text(feed.getDescription());
xml.endTag(null, "description");
}
if (feed.getLink() != null) {
xml.startTag(null, "link");
xml.text(feed.getLink());
xml.endTag(null, "link");
}
if (feed.getLanguage() != null) {
xml.startTag(null, "language");
xml.text(feed.getLanguage());
xml.endTag(null, "language");
}
if (feed.getImageUrl() != null) {
xml.startTag(null, "image");
xml.startTag(null, "url");
xml.text(feed.getImageUrl());
xml.endTag(null, "url");
xml.endTag(null, "image");
}
ArrayList<FeedFunding> fundingList = feed.getPaymentLinks();
if (fundingList != null) {
for (FeedFunding funding: fundingList) {
GeneratorUtil.addPaymentLink(xml, funding.url, true);
}
}
// Write FeedItem data
if (feed.getItems() != null) {
for (FeedItem item : feed.getItems()) {
xml.startTag(null, "item");
if (item.getTitle() != null) {
xml.startTag(null, "title");
xml.text(item.getTitle());
xml.endTag(null, "title");
}
if (item.getDescription() != null) {
xml.startTag(null, "description");
xml.text(item.getDescription());
xml.endTag(null, "description");
}
if (item.getLink() != null) {
xml.startTag(null, "link");
xml.text(item.getLink());
xml.endTag(null, "link");
}
if (item.getPubDate() != null) {
xml.startTag(null, "pubDate");
xml.text(formatRfc822Date(item.getPubDate()));
xml.endTag(null, "pubDate");
}
if ((flags & FEATURE_WRITE_GUID) != 0) {
xml.startTag(null, "guid");
xml.text(item.getItemIdentifier());
xml.endTag(null, "guid");
}
if (item.getMedia() != null) {
xml.startTag(null, "enclosure");
xml.attribute(null, "url", item.getMedia().getDownloadUrl());
xml.attribute(null, "length", String.valueOf(item.getMedia().getSize()));
xml.attribute(null, "type", item.getMedia().getMimeType());
xml.endTag(null, "enclosure");
}
if (fundingList != null) {
for (FeedFunding funding: fundingList) {
xml.startTag(PodcastIndex.NSTAG, "funding");
xml.attribute(PodcastIndex.NSTAG, "url", funding.url);
xml.text(funding.content);
GeneratorUtil.addPaymentLink(xml, funding.url, true);
xml.endTag(PodcastIndex.NSTAG, "funding");
}
}
xml.endTag(null, "item");
}
}
xml.endTag(null, "channel");
xml.endTag(null, "rss");
xml.endDocument();
}
private static String formatRfc822Date(Date date) {
SimpleDateFormat format = new SimpleDateFormat("dd MMM yy HH:mm:ss Z", Locale.US);
return format.format(date);
}
}
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