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package de.danoeh.antennapod.syndication.namespace.rss20;
import org.xml.sax.Attributes;
import android.util.Log;
import de.danoeh.antennapod.AppConfig;
import de.danoeh.antennapod.feed.FeedImage;
import de.danoeh.antennapod.feed.FeedItem;
import de.danoeh.antennapod.feed.FeedMedia;
import de.danoeh.antennapod.syndication.handler.HandlerState;
import de.danoeh.antennapod.syndication.namespace.Namespace;
import de.danoeh.antennapod.syndication.namespace.SyndElement;
import de.danoeh.antennapod.syndication.util.SyndDateUtils;
import de.danoeh.antennapod.syndication.util.SyndTypeUtils;
/**
* SAX-Parser for reading RSS-Feeds
*
* @author daniel
*
*/
public class NSRSS20 extends Namespace {
private static final String TAG = "NSRSS20";
public static final String NSTAG = "rss";
public static final String NSURI = "";
public final static String CHANNEL = "channel";
public final static String ITEM = "item";
public final static String GUID = "guid";
public final static String TITLE = "title";
public final static String LINK = "link";
public final static String DESCR = "description";
public final static String PUBDATE = "pubDate";
public final static String ENCLOSURE = "enclosure";
public final static String IMAGE = "image";
public final static String URL = "url";
public final static String LANGUAGE = "language";
public final static String ENC_URL = "url";
public final static String ENC_LEN = "length";
public final static String ENC_TYPE = "type";
@Override
public SyndElement handleElementStart(String localName, HandlerState state,
Attributes attributes) {
if (localName.equals(ITEM)) {
state.setCurrentItem(new FeedItem());
state.getFeed().getItems().add(state.getCurrentItem());
state.getCurrentItem().setFeed(state.getFeed());
} else if (localName.equals(ENCLOSURE)) {
String type = attributes.getValue(ENC_TYPE);
String url = attributes.getValue(ENC_URL);
if (state.getCurrentItem().getMedia() == null
&& (SyndTypeUtils.typeValid(type) || ((type = SyndTypeUtils
.getValidMimeTypeFromUrl(url)) != null))) {
long size = 0;
try {
size = Long.parseLong(attributes.getValue(ENC_LEN));
} catch (NumberFormatException e) {
if (AppConfig.DEBUG)
Log.d(TAG, "Length attribute could not be parsed.");
}
state.getCurrentItem().setMedia(
new FeedMedia(state.getCurrentItem(), url, size, type));
}
} else if (localName.equals(IMAGE)) {
if (state.getTagstack().size() >= 1) {
String parent = state.getTagstack().peek().getName();
if (parent.equals(CHANNEL)) {
state.getFeed().setImage(new FeedImage());
}
}
}
return new SyndElement(localName, this);
}
@Override
public void handleElementEnd(String localName, HandlerState state) {
if (localName.equals(ITEM)) {
state.setCurrentItem(null);
} else if (state.getTagstack().size() >= 2
&& state.getContentBuf() != null) {
String content = state.getContentBuf().toString();
SyndElement topElement = state.getTagstack().peek();
String top = topElement.getName();
SyndElement secondElement = state.getSecondTag();
String second = secondElement.getName();
String third = null;
if (state.getTagstack().size() >= 3) {
third = state.getThirdTag().getName();
}
if (top.equals(GUID) && second.equals(ITEM)) {
state.getCurrentItem().setItemIdentifier(content);
} else if (top.equals(TITLE)) {
if (second.equals(ITEM)) {
state.getCurrentItem().setTitle(content);
} else if (second.equals(CHANNEL)) {
state.getFeed().setTitle(content);
} else if (second.equals(IMAGE) && third != null && third.equals(CHANNEL)) {
state.getFeed().getImage().setTitle(IMAGE);
}
} else if (top.equals(LINK)) {
if (second.equals(CHANNEL)) {
state.getFeed().setLink(content);
} else if (second.equals(ITEM)) {
state.getCurrentItem().setLink(content);
}
} else if (top.equals(PUBDATE) && second.equals(ITEM)) {
state.getCurrentItem().setPubDate(
SyndDateUtils.parseRFC822Date(content));
} else if (top.equals(URL) && second.equals(IMAGE) && third != null && third.equals(CHANNEL)) {
state.getFeed().getImage().setDownload_url(content);
} else if (localName.equals(DESCR)) {
if (second.equals(CHANNEL)) {
state.getFeed().setDescription(content);
} else if (second.equals(ITEM)) {
state.getCurrentItem().setDescription(content);
}
} else if (localName.equals(LANGUAGE)) {
state.getFeed().setLanguage(content.toLowerCase());
}
}
}
}
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