XmlPullFeedParser.java :  » UnTagged » softwarrior » com » softwarrior » rss » Android Open Source

package com.softwarrior.rss;

import java.util.ArrayList;
import java.util.List;

import org.xmlpull.v1.XmlPullParser;

import com.softwarrior.rutrackerdownloader.RutrackerDownloaderApp;

import android.util.Log;
import android.util.Xml;

public class XmlPullFeedParser extends BaseFeedParser {

  public XmlPullFeedParser(String feedUrl) {
    super(feedUrl);
  }

  public List<Message> parse() {
    List<Message> messages = null;
    XmlPullParser parser = Xml.newPullParser();
    try {
      // auto-detect the encoding from the stream
      parser.setInput(this.getInputStream(), null);
      int eventType = parser.getEventType();
      Message currentMessage = null;
      boolean done = false;
      while (eventType != XmlPullParser.END_DOCUMENT && !done){
        String name = null;
        switch (eventType){
          case XmlPullParser.START_DOCUMENT:
            messages = new ArrayList<Message>();
            break;
          case XmlPullParser.START_TAG:
            name = parser.getName();
            if (name.equalsIgnoreCase(ITEM)){
              currentMessage = new Message();
            } else if (currentMessage != null){
              if (name.equalsIgnoreCase(LINK)){
                currentMessage.setLink(parser.nextText());
              } else if (name.equalsIgnoreCase(DESCRIPTION)){
                currentMessage.setDescription(parser.nextText());
              } else if (name.equalsIgnoreCase(PUB_DATE)){
                currentMessage.setDate(parser.nextText());
              } else if (name.equalsIgnoreCase(TITLE)){
                currentMessage.setTitle(parser.nextText());
              }  
            }
            break;
          case XmlPullParser.END_TAG:
            name = parser.getName();
            if (name.equalsIgnoreCase(ITEM) && currentMessage != null){
              messages.add(currentMessage);
            } else if (name.equalsIgnoreCase(CHANNEL)){
              done = true;
            }
            break;
        }
        eventType = parser.next();
      }
    } catch (Exception e) {
      Log.e(RutrackerDownloaderApp.TAG, e.getMessage(), e);
      throw new RuntimeException(e);
    }
    return messages;
  }
}