Android Open Source - AQUArinthia Simple Rss2 Parser

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Back to project page AQUArinthia.
License

The source code is released under:
GNU General Public License
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Java Source Code

package at.theengine.android.simple_rss2_android;
/*from ww  w.j av a  2s . c  om*/
import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.os.AsyncTask;
import android.sax.Element;
import android.sax.EndElementListener;
import android.sax.EndTextElementListener;
import android.sax.RootElement;
import android.util.Log;
import android.util.Xml;
import android.widget.ArrayAdapter;

public class SimpleRss2Parser extends SimpleFeedParser {

  private static final String TAG = "at.theengine.android.simple_rss2_android.SimpleRss2Parser";
  
  private SimpleRss2ParserCallback mCallback;
  
    public SimpleRss2Parser(String feedUrl, SimpleRss2ParserCallback callback) {
        super(feedUrl);
        this.mCallback = callback;
    }
    
    public void parseAsync(){
      AsyncTask task = new AsyncTask() {

      private Exception mEx;
      private List<RSSItem> items;
      
      @Override
      protected void onPostExecute(Object result) {
        if(mEx != null){
          if(mCallback != null){
            mCallback.onError(mEx);
          }
        } else {
          if(mCallback != null){
            mCallback.onFeedParsed(items);
          }
        }
      }
      
      @Override
      protected Object doInBackground(Object... arg0) {
        try {
          items = parse();
        } catch(Exception e){
          mEx = e;
        }
        
        return null;
      }
    };
    
    task.execute();
    }

    public List<RSSItem> parse() {
        final RSSItem currentMessage = new RSSItem();
        RootElement root = new RootElement("rss");
        final List<RSSItem> messages = new ArrayList<RSSItem>();
        Element channel = root.getChild("channel");
        Element item = channel.getChild(ITEM);
        item.setEndElementListener(new EndElementListener(){
            public void end() {
                messages.add(currentMessage.copy());
            }
        });
        item.getChild(TITLE).setEndTextElementListener(new EndTextElementListener(){
            public void end(String body) {
                currentMessage.setTitle(body);
            }
        });
        item.getChild(LINK).setEndTextElementListener(new EndTextElementListener(){
            public void end(String body) {
                currentMessage.setLink(body);
            }
        });
        item.getChild(DESCRIPTION).setEndTextElementListener(new EndTextElementListener(){
            public void end(String body) {
                currentMessage.setDescription(body);
            }
        });
        item.getChild("http://purl.org/rss/1.0/modules/content/", "encoded").setEndTextElementListener(new EndTextElementListener(){
            public void end(String body) {
                currentMessage.setContent(body);
            }
        });
        item.getChild(CONTENT).setEndTextElementListener(new EndTextElementListener(){
            public void end(String body) {
                currentMessage.setContent(body);
            }
        });
        item.getChild(PUB_DATE).setEndTextElementListener(new EndTextElementListener(){
            public void end(String body) {
                currentMessage.setDate(body);
            }
        });
        
        item.getChild("http://www.w3.org/2003/01/geo/wgs84_pos#",LAT).setEndTextElementListener(new EndTextElementListener(){
            public void end(String body) {
              try {
                currentMessage.setLat(Float.parseFloat(body));
              } catch (Exception ex) {
                Log.e(TAG, "Could not parse geo:lat - EX:" + ex.getMessage());
                currentMessage.setLat(0F);
              }
            }
        });

        item.getChild("http://www.w3.org/2003/01/geo/wgs84_pos#",LNG).setEndTextElementListener(new EndTextElementListener(){
            public void end(String body) {
              try {
                currentMessage.setLng(Float.parseFloat(body));
              } catch (Exception ex) {
                Log.e(TAG, "Could not parse geo:long - EX:" + ex.getMessage());
              currentMessage.setLng(0F);
            }
            }
        });
        
        try {
            Xml.parse(this.getInputStream(), Xml.Encoding.UTF_8, root.getContentHandler());
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return messages;
    }
}
Java Source Code List
