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package de.podfetcher.syndication.namespace.rss20;
import java.util.ArrayList;
import java.util.Date;
import de.podfetcher.feed.Feed;
import de.podfetcher.feed.FeedImage;
import de.podfetcher.feed.FeedItem;
import de.podfetcher.feed.FeedMedia;
import de.podfetcher.syndication.handler.HandlerState;
import de.podfetcher.syndication.handler.SyndHandler;
import de.podfetcher.syndication.namespace.Namespace;
import de.podfetcher.syndication.namespace.SyndElement;
import de.podfetcher.syndication.util.SyndDateUtils;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
/**
* SAX-Parser for reading RSS-Feeds
*
* @author daniel
*
*/
public class NSRSS20 extends Namespace {
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 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 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)) {
state.getCurrentItem()
.setMedia(
new FeedMedia(state.getCurrentItem(), attributes
.getValue(ENC_URL), Long
.parseLong(attributes.getValue(ENC_LEN)),
attributes.getValue(ENC_TYPE)));
} else if (localName.equals(IMAGE)) {
state.getFeed().setImage(new FeedImage());
}
return new SyndElement(localName, this);
}
@Override
public void handleCharacters(HandlerState state, char[] ch, int start,
int length) {
}
@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();
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)) {
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)) {
state.getFeed().getImage().setDownload_url(content);
} else if (localName.equals(DESCR)) {
if (second.equals(CHANNEL)) {
state.getFeed().setDescription(content);
} else {
state.getCurrentItem().setDescription(content);
}
}
}
}
}
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