Android Open Source - Wikipedia-Daily-Widget Wiki Widget Handler

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From Project

Back to project page Wikipedia-Daily-Widget.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.rmc.dfaw;
/* w  w w  .  ja va2  s.c om*/
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

import android.util.Log;

public class WikiWidgetHandler {
  final int TITLE_INDEX = 0;
  final int SUMMARY_INDEX = 1;

  final String WIKI_BASE_URL = "https://en.wikipedia.org";
  final String WIKI_SLASH_WIKI_URL = WIKI_BASE_URL + "/wiki/";
  private String urlString;

  public WikiWidgetHandler(String urlString) {
    this.urlString = urlString;
  }

  public HttpsURLConnection getHTTPSConnection() {
    URL url = null;

    try {
      url = new URL(urlString);
    } catch (MalformedURLException e1) {
      Log.e("UpdateStory", "MalformedURLException " + e1.getCause());
      return null;
    }

    System.setProperty("http.keepAlive", "false");
    HttpsURLConnection s = null;
    try {
      s = (HttpsURLConnection) url.openConnection();
    } catch (IOException e) {
      Log.e("UpdateStory", "IOException opening url" + e.getCause());
      e.printStackTrace();
      return null;
    }
    s.setDoOutput(true);
    return s;
  }

  public InputStream getURLInputStream(HttpsURLConnection s) {

    if (s != null) {
      InputStream s2 = null;
      try {
        s2 = new BufferedInputStream(s.getInputStream());
      } catch (IOException e) {
        Log.e("UpdateStory",
            "IOException getInputStream " + e.getCause());
        e.printStackTrace();
        return null;
      }

      return s2;
    }
    return null;
  }

  public Document getDOM(InputStream urlInputStream, HttpsURLConnection s) {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

    DocumentBuilder builder;
    try {
      builder = factory.newDocumentBuilder();
    } catch (ParserConfigurationException e) {
      Log.e("UpdateStory",
          "ParserConfigurationException creating dom builder "
              + e.getCause());
      return null;
    }
    Document dom;

    try {
      dom = builder.parse(urlInputStream);
    } catch (SAXException e) {
      Log.e("UpdateStory", "SAXException parsing dom " + e.getCause());
      e.printStackTrace();
      try {
        urlInputStream.close();
        s.disconnect();
      } catch (IOException e1) {
        e1.printStackTrace();
      }
      return null;

    } catch (IOException e) {
      Log.e("UpdateStory", "IOException parsing dom" + e.getCause());
      try {
        urlInputStream.close();
        s.disconnect();
      } catch (IOException e1) {
        e1.printStackTrace();
      }
      return null;
    }

    try {
      urlInputStream.close();
      s.disconnect();
    } catch (IOException e) {
      Log.e("UpdateStory",
          "IOException closing url input stream" + e.getCause());
    }
    // builder.reset();

    return dom;
  }

  public String[] parseFeed(Document dom) {
    String[] story = new String[2];
    if (dom != null) {

      final String HTML_ENTRY_TAG = "entry";
      final String HTML_TITLE_TAG = "title";
      final String HTML_SUMMARY_TAG = "summary";
      String val = null;
      String summary = null;

      Element root = dom.getDocumentElement();

      NodeList items = root.getElementsByTagName(HTML_ENTRY_TAG);
      int i = items.getLength() - 1;
      // stops it breaking < 4.0
      items.item(i).normalize();
      Node item = items.item(i);
      NodeList properties = item.getChildNodes();
      for (int j = 0; j < properties.getLength(); j++) {
        Node property = properties.item(j);
        String name = property.getNodeName();
        if (name.equalsIgnoreCase(HTML_TITLE_TAG)) {
          val = property.getFirstChild().getNodeValue();
        } else if (name.equalsIgnoreCase(HTML_SUMMARY_TAG)) {
          for (int k = 0; k < property.getChildNodes().getLength(); k++) {
            summary = property.getFirstChild().getNodeValue();
          }
        }
      }

      story[0] = val;
      story[1] = summary;
    } else {
      story = null;
    }
    return story;
  }

  /**
   * Removes unwanted characters from the text
   * 
   * @param strSummary
   *            the Text to perform the replace on
   * @return the cleaned String
   */
  public String cleanupSummary(String strSummary) {
    strSummary = strSummary.replace('?', '\0');
    strSummary = strSummary.replace('\n', '\0');
    // remove the unicode character that are inserted
    strSummary = strSummary.replaceAll("[\u0000]", "");
    strSummary = strSummary.replaceAll("\\(pictured\\)", "");
    return strSummary;
  }

  public String generateClickURL(String summary) {
    return summary;

  }

}

Java Source Code List

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