/**
* Internal helper method to aid in the subclass architecture. Overwrites the superclass method
* and calls it internally.
*
* @param header
* @param s
*/
protected void sentenceChooser(String header, String s) {
if (header.equals(RMCSentence.HEADER)) {
rmcSentence.setSentence(s);
notifyListeners(this.rmcSentence);
} else if (header.equals(GSVSentence.HEADER)) {
// TODO: I wonder what happens if say 2 of 4 are received and parse is called?
// Because 2 would be new data, 2 would be old data.
// Can't happen because parse() only called when not null.
// BUT what if it is in the middle of parsing and new data comes in?
// Solution: Sync GSVSentence.parse()? checkRefresh() is already synced though.
// 0. Get StringTokenizer to read info from NMEASentence:
StringTokenizer st = new StringTokenizer(s, ",");
st.nextToken(); // Skip header $GPGSV
// 1.1 Find out how many sentences in sequence.
gsvSentenceTotal = Integer.parseInt(st.nextToken());
// 1.2 Find out which sentence this is.
gsvSentenceNumber = Integer.parseInt(st.nextToken());
// 2. Assign sentence to GSVSentence in order.
gsvSentence.setSentence(s, gsvSentenceNumber, gsvSentenceTotal);
// 3. If last sentence:
if (gsvSentenceTotal == gsvSentenceNumber) {
// 3a. setSentence() to last one so it is not null
gsvSentence.setSentence(s);
// 3b. Notify GPSListener
notifyListeners(this.gsvSentence);
}
} else super.sentenceChooser(header, s); // Check superclass sentences.
}
/** Update Date values */
private void updateDate() {
int dateStamp = rmcSentence.getDate();
if (dateStamp > 0) {
String rd = Integer.toString(dateStamp);
int dd = Integer.parseInt(rd.substring(0, rd.length() - 4));
int mm = Integer.parseInt(rd.substring(rd.length() - 4, rd.length() - 2));
int yy = Integer.parseInt(rd.substring(rd.length() - 2, rd.length()));
date.setDay(dd);
date.setMonth(mm);
date.setYear(yy);
}
}
/**
* Return Compass Degrees in a range: 0.0-359.9
*
* @return the compass degrees
*/
public float getCompassDegrees() {
return rmcSentence.getCompassDegrees();
}