Android Open Source - RssReader Get Widget Rss Items

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Back to project page RssReader.
License

The source code is released under:
MIT License
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Java Source Code

package com.vicmns.rssreader.http;
/*  ww  w  .  ja  v  a 2s . co m*/
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.List;
import java.util.Locale;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;

import com.vicmns.rssreader.models.RssItem;

import android.content.Context;
import android.content.res.AssetManager;
import android.util.Log;

public class GetWidgetRssItems {
  private Context context;
  private Calendar cal = Calendar.getInstance();
  
  public GetWidgetRssItems(Context context) {
    this.context = context;
  }
  
  public List<RssItem> getNewRssItems() {
    AssetManager assetManager = context.getAssets();
    InputStream ims;
    try {
      ims = assetManager.open("testRss.xml");
      return parseStringResponse(ims);
    } catch (Exception e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    return Collections.emptyList();
  }
  
  private List<RssItem> parseStringResponse(InputStream inputStream)
      throws Exception {
    List<RssItem> rssItemList = new ArrayList<RssItem>();
    XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
    XmlPullParser parser = factory.newPullParser();
    String tagName;
    parser.setInput(inputStream, "UTF_8");
    // parser.setInput(new StringReader(response));
    int eventType = parser.getEventType();
    while (eventType != XmlPullParser.END_DOCUMENT) {
      tagName = parser.getName();
      switch (eventType) {
      case XmlPullParser.START_DOCUMENT:
        break;
      case XmlPullParser.START_TAG:
        if (tagName.equals("item")) {
          rssItemList.add(parseXMLItem(parser));
        }  else if (tagName.equals("pubDate")) {
          // Mon, 14 Apr 2014 11:00:00 -0400
          SimpleDateFormat sdf = new SimpleDateFormat(
              "EEE, d MMM yyyy HH:mm:ss Z", Locale.ENGLISH);
          cal.setTime(sdf.parse(parser.nextText().toString()));// all
                                      // done
          rssItemList.get(rssItemList.size() - 1).setPubDate(cal.getTime());
        }
        break;
      case XmlPullParser.END_TAG:
        if (tagName.equals("item")) {
          Log.i(this.getClass().getSimpleName(), "item tag end");
        }
        break;
      }
      eventType = parser.next();
    }

    return rssItemList;
  }

  private RssItem parseXMLItem(XmlPullParser parser) throws Exception {
    RssItem rssItem = new RssItem();
    String tagName;
    int eventType = parser.getEventType();
    Document doc;
    String itemDescription;
    while (eventType != XmlPullParser.END_TAG) {
      tagName = parser.getName();
      switch (eventType) {
      case XmlPullParser.START_TAG:
        if (tagName.equals("title")) {
          rssItem.setTitle(parser.nextText().toString());
        } else if (tagName.equals("link")) {
          rssItem.setLink(parser.nextText().toString());
        } else if (tagName.equals("description")) {
          itemDescription = stripCDATA(parser.nextText());
          doc = Jsoup.parse(itemDescription);
          Element image = doc.select("img").first();
          if(image != null)
            rssItem.setImageURL(image.absUrl("src"));
          itemDescription = itemDescription.replaceAll("<img(.|\n)*?>","");
          rssItem.setDescription(itemDescription.trim());
        } else if (tagName.equals("dc:creator")) {

        }
        break;
      }
      eventType = parser.next();
    }

    return rssItem;
  }
  
  private static String stripCDATA(String s) {
      s = s.trim();
      if (s.startsWith("<![CDATA[")) {
        s = s.substring(9);
        int i = s.indexOf("]]&gt;");
        if (i == -1) {
          throw new IllegalStateException(
              "argument starts with <![CDATA[ but cannot find pairing ]]&gt;");
        }
        s = s.substring(0, i);
      }
      return s;
    }
}
Java Source Code List
