*/
public class KmlHandler extends XmlHandler
{
- private boolean _insidePlacemark = false;
- private boolean _insideName = false;
private boolean _insideCoordinates = false;
- private String _name = null;
+ private String _value = null;
+ private String _name = null, _desc = null;
+ private String _imgLink = null;
private StringBuffer _coordinates = null;
private ArrayList<String[]> _pointList = new ArrayList<String[]>();
+ private ArrayList<String> _linkList = new ArrayList<String>();
+ // variables for gx extensions
+ private ArrayList<String> _whenList = new ArrayList<String>();
+ private ArrayList<String> _whereList = new ArrayList<String>();
/**
* @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
*/
public void startElement(String uri, String localName, String qName,
- Attributes attributes) throws SAXException
+ Attributes attributes) throws SAXException
{
String tagName = localName;
if (tagName == null || tagName.equals("")) {tagName = qName;}
- if (tagName.equalsIgnoreCase("Placemark")) _insidePlacemark = true;
- else if (tagName.equalsIgnoreCase("coordinates")) {_insideCoordinates = true; _coordinates = null;}
- else if (tagName.equalsIgnoreCase("name")) {_insideName = true; _name = null;}
+ if (tagName.equalsIgnoreCase("coordinates")) {_insideCoordinates = true; _coordinates = null;}
+ _value = null;
super.startElement(uri, localName, qName, attributes);
}
if (tagName.equalsIgnoreCase("Placemark"))
{
processPlacemark();
- _insidePlacemark = false;
+ _name = _desc = _imgLink = null;
}
else if (tagName.equalsIgnoreCase("coordinates")) _insideCoordinates = false;
- else if (tagName.equalsIgnoreCase("name")) _insideName = false;
+ else if (tagName.equalsIgnoreCase("name")) _name = _value;
+ else if (tagName.equalsIgnoreCase("description")) {
+ _desc = _value;
+ _imgLink = getImgLink(_desc);
+ }
+ else if (tagName.equalsIgnoreCase("when")) {
+ _whenList.add(_value);
+ }
+ else if (tagName.equalsIgnoreCase("gx:coord")) {
+ _whereList.add(_value);
+ }
+ else if (tagName.equalsIgnoreCase("gx:Track")) {
+ processGxTrack();
+ }
super.endElement(uri, localName, qName);
}
public void characters(char[] ch, int start, int length)
throws SAXException
{
- if (_insidePlacemark && (_insideName || _insideCoordinates))
+ String val = new String(ch, start, length);
+ if (_insideCoordinates)
{
- String value = new String(ch, start, length);
- if (_insideName) {_name = value;}
- else if (_insideCoordinates)
- {
- if (_coordinates == null)
- {
- _coordinates = new StringBuffer();
- }
- _coordinates.append(value);
+ if (_coordinates == null) {
+ _coordinates = new StringBuffer();
}
+ _coordinates.append(val);
+ }
+ else
+ {
+ // Store string in _value
+ if (_value == null) _value = val;
+ else _value = _value + val;
}
super.characters(ch, start, length);
}
if (numPoints == 1)
{
// Add single waypoint to list
- _pointList.add(makeStringArray(allCoords, _name));
+ _pointList.add(makeStringArray(allCoords, _name, _desc));
+ _linkList.add(_imgLink);
}
else if (numPoints > 1)
{
{
if (coordArray[p] != null && coordArray[p].trim().length()>3)
{
- String[] pointArray = makeStringArray(coordArray[p], null);
- if (firstPoint) {pointArray[4] = "1";} // start of segment flag
+ String[] pointArray = makeStringArray(coordArray[p], null, null);
+ if (firstPoint) {pointArray[5] = "1";} // start of segment flag
firstPoint = false;
_pointList.add(pointArray);
}
+ _linkList.add(null);
}
}
}
+ /**
+ * Process a Gx track including timestamps
+ */
+ private void processGxTrack()
+ {
+ if (_whenList.size() > 0 && _whenList.size() == _whereList.size())
+ {
+ // Add each of the unnamed track points to list
+ boolean firstPoint = true;
+ final int numPoints = _whenList.size();
+ for (int p=0; p < numPoints; p++)
+ {
+ String when = _whenList.get(p);
+ String where = _whereList.get(p);
+ if (where != null)
+ {
+ String[] coords = where.split(" ");
+ if (coords.length == 3)
+ {
+ String[] pointArray = new String[7];
+ pointArray[0] = coords[0];
+ pointArray[1] = coords[1];
+ pointArray[2] = coords[2];
+ // leave name and description empty
+ if (firstPoint) {pointArray[5] = "1";} // start of segment flag
+ firstPoint = false;
+ pointArray[6] = when; // timestamp
+ _pointList.add(pointArray);
+ }
+ }
+ _linkList.add(null);
+ }
+ }
+ _whenList.clear();
+ _whereList.clear();
+ }
+
+ /**
+ * Extract an image link from the point description
+ * @param inDesc description tag contents
+ * @return image link if found or null
+ */
+ private static String getImgLink(String inDesc)
+ {
+ if (inDesc == null || inDesc.equals("")) {return null;}
+ // Pull out <img tag from description (if any)
+ int spos = inDesc.indexOf("<img");
+ int epos = inDesc.indexOf('>', spos + 10);
+ if (spos < 0 || epos < 0) return null;
+ String imgtag = inDesc.substring(spos + 4, epos);
+ // Find the src attribute from img tag
+ int quotepos = imgtag.toLowerCase().indexOf("src=");
+ if (quotepos < 0) return null;
+ // source may be quoted with single or double quotes
+ char quotechar = imgtag.charAt(quotepos + 4);
+ int equotepos = imgtag.indexOf(quotechar, quotepos + 7);
+ if (equotepos < 0) return null;
+ return imgtag.substring(quotepos + 5, equotepos);
+ }
/**
* Construct the String array for the given coordinates and name
* @param inCoordinates coordinate string in Kml format
* @param inName name of waypoint, or null if track point
+ * @param inDesc description of waypoint, if any
* @return String array for point
*/
- private static String[] makeStringArray(String inCoordinates, String inName)
+ private static String[] makeStringArray(String inCoordinates,
+ String inName, String inDesc)
{
- String[] result = new String[5];
+ String[] result = new String[7];
String[] values = inCoordinates.split(",");
- if (values.length == 3) {System.arraycopy(values, 0, result, 0, 3);}
+ final int numValues = values.length;
+ if (numValues == 3 || numValues == 2) {
+ System.arraycopy(values, 0, result, 0, numValues);
+ }
result[3] = inName;
+ result[4] = inDesc;
return result;
}
*/
public Field[] getFieldArray()
{
- final Field[] fields = {Field.LONGITUDE, Field.LATITUDE, Field.ALTITUDE, Field.WAYPT_NAME, Field.NEW_SEGMENT};
+ final Field[] fields = {Field.LONGITUDE, Field.LATITUDE, Field.ALTITUDE,
+ Field.WAYPT_NAME, Field.DESCRIPTION, Field.NEW_SEGMENT, Field.TIMESTAMP};
return fields;
}
int numPoints = _pointList.size();
// construct data array
String[][] result = new String[numPoints][];
- for (int i=0; i<numPoints; i++)
- {
+ for (int i=0; i<numPoints; i++) {
result[i] = _pointList.get(i);
}
return result;
}
+ /**
+ * @return array of links, or null if none
+ */
+ public String[] getLinkArray()
+ {
+ int numPoints = _linkList.size();
+ boolean hasLink = false;
+ String[] result = new String[numPoints];
+ for (int i=0; i<numPoints; i++)
+ {
+ result[i] = _linkList.get(i);
+ if (result[i] != null) {hasLink = true;}
+ }
+ if (!hasLink) {result = null;}
+ return result;
+ }
}
projects / GpsPrune.git / blobdiff