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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 de.danoeh.antennapod.core.feed.Feed;
import de.danoeh.antennapod.core.feed.FeedItem;
import de.danoeh.antennapod.core.feed.FeedMedia;
import de.danoeh.antennapod.core.util.DateUtils;
/**
* Creates Atom feeds. See FeedGenerator for more information.
*/
public class AtomGenerator implements FeedGenerator {
private static final String NS_ATOM = "http://www.w3.org/2005/Atom";
private static final long FEATURE_USE_RFC3339LOCAL = 1;
@Override
public void writeFeed(Feed feed, OutputStream outputStream, String encoding, long flags) throws IOException {
if (feed == null) throw new IllegalArgumentException("feed = null");
if (outputStream == null) throw new IllegalArgumentException("outputStream = null");
if (encoding == null) throw new IllegalArgumentException("encoding = null");
XmlSerializer xml = Xml.newSerializer();
xml.setOutput(outputStream, encoding);
xml.startDocument(encoding, null);
xml.startTag(null, "feed");
xml.attribute(null, "xmlns", NS_ATOM);
// Write Feed data
if (feed.getIdentifyingValue() != null) {
xml.startTag(null, "id");
xml.text(feed.getIdentifyingValue());
xml.endTag(null, "id");
}
if (feed.getTitle() != null) {
xml.startTag(null, "title");
xml.text(feed.getTitle());
xml.endTag(null, "title");
}
if (feed.getLink() != null) {
xml.startTag(null, "link");
xml.attribute(null, "rel", "alternate");
xml.attribute(null, "href", feed.getLink());
xml.endTag(null, "link");
}
if (feed.getDescription() != null) {
xml.startTag(null, "subtitle");
xml.text(feed.getDescription());
xml.endTag(null, "subtitle");
}
if (feed.getImageUrl() != null) {
xml.startTag(null, "logo");
xml.text(feed.getImageUrl());
xml.endTag(null, "logo");
}
if (feed.getPaymentLink() != null) {
GeneratorUtil.addPaymentLink(xml, feed.getPaymentLink(), false);
}
// Write FeedItem data
if (feed.getItems() != null) {
for (FeedItem item : feed.getItems()) {
xml.startTag(null, "entry");
if (item.getIdentifyingValue() != null) {
xml.startTag(null, "id");
xml.text(item.getIdentifyingValue());
xml.endTag(null, "id");
}
if (item.getTitle() != null) {
xml.startTag(null, "title");
xml.text(item.getTitle());
xml.endTag(null, "title");
}
if (item.getLink() != null) {
xml.startTag(null, "link");
xml.attribute(null, "rel", "alternate");
xml.attribute(null, "href", item.getLink());
xml.endTag(null, "link");
}
if (item.getPubDate() != null) {
xml.startTag(null, "published");
if ((flags & FEATURE_USE_RFC3339LOCAL) != 0) {
xml.text(DateUtils.formatRFC3339Local(item.getPubDate()));
} else {
xml.text(DateUtils.formatRFC3339UTC(item.getPubDate()));
}
xml.endTag(null, "published");
}
if (item.getDescription() != null) {
xml.startTag(null, "content");
xml.text(item.getDescription());
xml.endTag(null, "content");
}
if (item.getMedia() != null) {
FeedMedia media = item.getMedia();
xml.startTag(null, "link");
xml.attribute(null, "rel", "enclosure");
xml.attribute(null, "href", media.getDownload_url());
xml.attribute(null, "type", media.getMime_type());
xml.attribute(null, "length", String.valueOf(media.getSize()));
xml.endTag(null, "link");
}
if (item.getPaymentLink() != null) {
GeneratorUtil.addPaymentLink(xml, item.getPaymentLink(), false);
}
xml.endTag(null, "entry");
}
}
writeAdditionalAttributes(xml);
xml.endTag(null, "feed");
xml.endDocument();
}
protected void writeAdditionalAttributes(XmlSerializer xml) throws IOException {
}
}
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