src/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 import tim.prune.function.search.SearchResult;
  10
  11 /**
  12  * XML handler for dealing with XML returned from gpsies.com
  13  */
  14 public class GpsiesXmlHandler extends DefaultHandler
  15 {
  16         private String _value = null;
  17         private ArrayList<SearchResult> _trackList = null;
  18         private SearchResult _track = null;
  19
  20
  21         /**
  22          * React to the start of an XML tag
  23          */
  24         public void startElement(String inUri, String inLocalName, String inTagName,
  25                 Attributes inAttributes) throws SAXException
  26         {
  27                 if (inTagName.equals("tracks")) {
  28                         _trackList = new ArrayList<SearchResult>();
  29                 }
  30                 else if (inTagName.equals("track")) {
  31                         _track = new SearchResult();
  32                 }
  33                 _value = null;
  34                 super.startElement(inUri, inLocalName, inTagName, inAttributes);
  35         }
  36
  37         /**
  38          * React to the end of an XML tag
  39          */
  40         public void endElement(String inUri, String inLocalName, String inTagName)
  41         throws SAXException
  42         {
  43                 if (inTagName.equals("track")) {
  44                         _trackList.add(_track);
  45                 }
  46                 else if (inTagName.equals("title")) {
  47                         _track.setTrackName(_value);
  48                 }
  49                 else if (inTagName.equals("description")) {
  50                         _track.setDescription(_value);
  51                 }
  52                 else if (inTagName.equals("fileId")) {
  53                         _track.setWebUrl("https://gpsies.com/map.do?fileId=" + _value);
  54                 }
  55                 else if (inTagName.equals("trackLengthM")) {
  56                         try {
  57                                 _track.setLength(Double.parseDouble(_value));
  58                         }
  59                         catch (NumberFormatException nfe) {}
  60                 }
  61                 else if (inTagName.equals("downloadLink")) {
  62                         _track.setDownloadLink(_value);
  63                 }
  64                 super.endElement(inUri, inLocalName, inTagName);
  65         }
  66
  67         /**
  68          * React to characters received inside tags
  69          */
  70         public void characters(char[] inCh, int inStart, int inLength)
  71         throws SAXException
  72         {
  73                 String value = new String(inCh, inStart, inLength);
  74                 _value = (_value==null?value:_value+value);
  75                 super.characters(inCh, inStart, inLength);
  76         }
  77
  78         /**
  79          * @return the list of tracks
  80          */
  81         public ArrayList<SearchResult> getTrackList()
  82         {
  83                 return _trackList;
  84         }
  85 }