tim/prune/function/gpsies/GpsiesXmlHandler.java

   1 package tim.prune.function.gpsies;
   2
   3 import java.util.ArrayList;
   4
   5 import org.xml.sax.Attributes;
   6 import org.xml.sax.SAXException;
   7 import org.xml.sax.helpers.DefaultHandler;
   8
   9 /**
  10  * XML handler for dealing with XML returned from gpsies.com
  11  */
  12 public class GpsiesXmlHandler extends DefaultHandler
  13 {
  14         private String _value = null;
  15         private ArrayList<GpsiesTrack> _trackList = null;
  16         private GpsiesTrack _track = null;
  17
  18
  19         /**
  20          * React to the start of an XML tag
  21          */
  22         public void startElement(String inUri, String inLocalName, String inTagName,
  23                 Attributes inAttributes) throws SAXException
  24         {
  25                 if (inTagName.equals("tracks")) {
  26                         _trackList = new ArrayList<GpsiesTrack>();
  27                 }
  28                 else if (inTagName.equals("track")) {
  29                         _track = new GpsiesTrack();
  30                 }
  31                 _value = null;
  32                 super.startElement(inUri, inLocalName, inTagName, inAttributes);
  33         }
  34
  35         /**
  36          * React to the end of an XML tag
  37          */
  38         public void endElement(String inUri, String inLocalName, String inTagName)
  39         throws SAXException
  40         {
  41                 if (inTagName.equals("track")) {
  42                         _trackList.add(_track);
  43                 }
  44                 else if (inTagName.equals("title")) {
  45                         _track.setTrackName(_value);
  46                 }
  47                 else if (inTagName.equals("description")) {
  48                         _track.setDescription(_value);
  49                 }
  50                 else if (inTagName.equals("fileId")) {
  51                         _track.setWebUrl("http://gpsies.com/map.do?fileId=" + _value);
  52                 }
  53                 else if (inTagName.equals("trackLengthM")) {
  54                         try {
  55                                 _track.setLength(Double.parseDouble(_value));
  56                         }
  57                         catch (NumberFormatException nfe) {}
  58                 }
  59                 else if (inTagName.equals("downloadLink")) {
  60                         _track.setDownloadLink(_value);
  61                 }
  62                 super.endElement(inUri, inLocalName, inTagName);
  63         }
  64
  65         /**
  66          * React to characters received inside tags
  67          */
  68         public void characters(char[] inCh, int inStart, int inLength)
  69         throws SAXException
  70         {
  71                 String value = new String(inCh, inStart, inLength);
  72                 _value = (_value==null?value:_value+value);
  73                 super.characters(inCh, inStart, inLength);
  74         }
  75
  76         /**
  77          * @return the list of tracks
  78          */
  79         public ArrayList<GpsiesTrack> getTrackList()
  80         {
  81                 return _trackList;
  82         }
  83 }