Version 8, September 2009

[GpsPrune.git] / tim / prune / function / gpsies / GpsiesXmlHandler.java

diff --git a/tim/prune/function/gpsies/GpsiesXmlHandler.java b/tim/prune/function/gpsies/GpsiesXmlHandler.java
new file mode 100644 (file)
index 0000000..e639160
--- /dev/null
+++ b/tim/prune/function/gpsies/GpsiesXmlHandler.java
@@ -0,0 +1,104 @@
+package tim.prune.function.gpsies;
+
+import java.util.ArrayList;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+/**
+ * XML handler for dealing with XML returned from gpsies.com
+ */
+public class GpsiesXmlHandler extends DefaultHandler
+{
+       private boolean _inTracks = false;
+       private boolean _inTrack = false;
+       private boolean _inTrackName = false;
+       private boolean _inDescription = false;
+       private boolean _inFileId = false;
+       private boolean _inTrackLength = false;
+       private boolean _inLink = false;
+       private String _value = null;
+       private ArrayList<GpsiesTrack> _trackList = null;
+       private GpsiesTrack _track = null;
+
+
+       /**
+        * React to the start of an XML tag
+        */
+       public void startElement(String inUri, String inLocalName, String inTagName,
+               Attributes inAttributes) throws SAXException
+       {
+               if (inTagName.equals("tracks")) {
+                       _inTracks = true;
+                       _trackList = new ArrayList<GpsiesTrack>();
+               }
+               else if (_inTracks && inTagName.equals("track")) {
+                       _inTrack = true;
+                       _track = new GpsiesTrack();
+               }
+               else if (_inTrack && inTagName.equals("title")) {_inTrackName = true;}
+               else if (_inTrack && inTagName.equals("description")) {_inDescription = true;}
+               else if (_inTrack && inTagName.equals("fileId")) {_inFileId = true;}
+               else if (_inTrack && inTagName.equals("trackLengthM")) {_inTrackLength = true;}
+               else if (_inTrack && inTagName.equals("downloadLink")) {_inLink = true;}
+               super.startElement(inUri, inLocalName, inTagName, inAttributes);
+       }
+
+       /**
+        * React to the end of an XML tag
+        */
+       public void endElement(String inUri, String inLocalName, String inTagName)
+       throws SAXException
+       {
+               if (inTagName.equals("tracks")) {_inTracks = false;}
+               else if (_inTrack && inTagName.equals("track")) {
+                       _trackList.add(_track);
+                       _inTrack = false;
+               }
+               else if (_inTrackName && inTagName.equals("title")) {
+                       _track.setTrackName(_value);
+                       _inTrackName = false;
+               }
+               else if (_inDescription && inTagName.equals("description")) {
+                       _track.setDescription(_value);
+                       _inDescription = false;
+               }
+               else if (_inFileId && inTagName.equals("fileId")) {
+                       _track.setFileId(_value);
+                       _inFileId = false;
+               }
+               else if (_inTrackLength && inTagName.equals("trackLengthM")) {
+                       try {
+                               _track.setLength(Double.parseDouble(_value));
+                       }
+                       catch (NumberFormatException nfe) {}
+                       _inTrackLength = false;
+               }
+               else if (_inLink && inTagName.equals("downloadLink")) {
+                       _track.setDownloadLink(_value);
+                       _inLink = false;
+               }
+               super.endElement(inUri, inLocalName, inTagName);
+       }
+
+       /**
+        * React to characters received inside tags
+        */
+       public void characters(char[] inCh, int inStart, int inLength)
+       throws SAXException
+       {
+               _value = new String(inCh, inStart, inLength);
+               // System.out.println("Value: '" + value + "'");
+               // TODO: Note, this doesn't cope well with split characters for really long descriptions etc
+               super.characters(inCh, inStart, inLength);
+       }
+
+       /**
+        * @return the list of tracks
+        */
+       public ArrayList<GpsiesTrack> getTrackList()
+       {
+               return _trackList;
+       }
+}