Android Open Source - sbicktAndroid Kml Parser

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * #################################################
 * #            s'bickt Android Client             #
 * # Bildungseinrichtung:  Fachhochschule Salzburg #
 * #         Studiengang:  MultiMediaTechnology    #
 * #               Zweck:  Qualifikationsprojekt   #
 * #################################################
 */*from ww  w. ja  v a  2 s .  c o m*/
 * This is the client for the augmented reality and social community app s'bickt
 * Copyright Alexander Flatscher, Ismail Hanli
 * 
 * This file is part of s'bickt.
 * 
 * S'bickt is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * S'bickt is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with s'bickt.  If not, see <http://www.gnu.org/licenses/>.
 */

package geotag.core;

import java.net.URL;
import java.util.LinkedList;
import java.util.Queue;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

import android.util.Log;

public class KmlParser {
  private DocumentBuilderFactory dbf;
  private DocumentBuilder db;
  private Document kml;
  
  public KmlParser() throws Exception{
    try{
      dbf = DocumentBuilderFactory.newInstance();
      db = dbf.newDocumentBuilder();
    }
    catch(Exception e){
      throw new Exception("KmlParser -> Constructor: " + e);
    }
  }
  
  public void requestKml(String protocol, String host, int port, String folder) throws Exception{
    try {
      
      kml = db.parse(new URL(protocol, host, port, folder).openConnection().getInputStream());
      kml.getDocumentElement().normalize();
    }
    catch (Exception e) {
      Log.v("alex", e.toString());
      throw new Exception("KmlParser -> requestKml: " + e);
    }
  }

  public Queue<GeoTag> generateObjects(){
    String user, content, coordinates;
    Integer id;
    TagVisibility visibility;
    double[] geoData = new double[3];
    Element listElement;
    Queue<GeoTag> listOfGeoTags = new LinkedList<GeoTag>();
    Element pointElement;
    NodeList objectList = kml.getElementsByTagName("Placemark");

    for(int i = 0;i < objectList.getLength();i++){
      listElement = (Element) objectList.item(i);
      
      id = Integer.parseInt(listElement.getAttribute("id"));

      if(listElement.getAttribute("visibility").toString().equalsIgnoreCase(Properties.VISIBILITY_0)){
        visibility = TagVisibility.PRIVATE;
      }
      else if(listElement.getAttribute("visibility").equalsIgnoreCase(Properties.VISIBILITY_1)){
        visibility = TagVisibility.PROTECTED;
      }
      else{
        visibility = TagVisibility.PUBLIC;
      }

      user = listElement.getElementsByTagName("name").item(0).getFirstChild().getNodeValue();

      content = listElement.getElementsByTagName("description").item(0).getFirstChild().getNodeValue();

      pointElement = (Element) listElement.getElementsByTagName("Point").item(0);
      coordinates = pointElement.getElementsByTagName("coordinates").item(0).getFirstChild().getNodeValue();

      try {
        geoData[1] = Double.parseDouble(coordinates.substring(0, coordinates.indexOf(",")));
        geoData[0] = Double.parseDouble(coordinates.substring(coordinates.indexOf(",") + 1, coordinates.lastIndexOf(",")));
        geoData[2] = Double.parseDouble(coordinates.substring(coordinates.lastIndexOf(",") + 1, coordinates.length()));
      }
      catch (NumberFormatException e) {
        continue;
      }

      listOfGeoTags.add(new GeoTag(id, new Point3D(geoData), user, content, visibility));
    }
    
    return listOfGeoTags;
  }
}

Java Source Code List

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