private void writeWaypoints(final cgCache cache) throws IOException {
List<cgWaypoint> waypoints = cache.getWaypoints();
List<cgWaypoint> ownWaypoints = new ArrayList<cgWaypoint>(waypoints.size());
List<cgWaypoint> originWaypoints = new ArrayList<cgWaypoint>(waypoints.size());
for (cgWaypoint wp : cache.getWaypoints()) {
if (wp.isUserDefined()) {
ownWaypoints.add(wp);
} else {
originWaypoints.add(wp);
}
}
int maxPrefix = 0;
for (cgWaypoint wp : originWaypoints) {
String prefix = wp.getPrefix();
try {
maxPrefix = Math.max(Integer.parseInt(prefix), maxPrefix);
} catch (NumberFormatException ex) {
Log.e("Unexpected origin waypoint prefix='" + prefix + "'", ex);
}
writeCacheWaypoint(wp, prefix);
}
for (cgWaypoint wp : ownWaypoints) {
maxPrefix++;
String prefix = StringUtils.leftPad(String.valueOf(maxPrefix), 2, '0');
writeCacheWaypoint(wp, prefix);
}
}
/**
* Return the first of the cache coordinates, the waypoint coordinates or the extra coordinates.
* <code>null</code> entities are skipped.
*
* @param cache a cache
* @param waypoint a waypoint
* @param coords extra coordinates
* @return the first non-null coordinates, or null if none are set
*/
private static Geopoint getCoordinates(
final cgCache cache, final cgWaypoint waypoint, final Geopoint coords) {
if (cache != null && cache.getCoords() != null) {
return cache.getCoords();
}
if (waypoint != null && waypoint.getCoords() != null) {
return waypoint.getCoords();
}
return coords;
}
/**
* Writes one waypoint entry for cache waypoint.
*
* @param cache The
* @param wp
* @param prefix
* @throws IOException
*/
private void writeCacheWaypoint(final cgWaypoint wp, final String prefix) throws IOException {
gpx.write("<wpt lat=\"");
final Geopoint coords = wp.getCoords();
gpx.write(
coords != null
? Double.toString(coords.getLatitude())
: ""); // TODO: check whether is the best way to handle unknown waypoint coordinates
gpx.write("\" lon=\"");
gpx.write(coords != null ? Double.toString(coords.getLongitude()) : "");
gpx.write("\">");
gpx.write("<name>");
gpx.write(StringEscapeUtils.escapeXml(prefix));
gpx.write(StringEscapeUtils.escapeXml(wp.getGeocode().substring(2)));
gpx.write("</name>");
gpx.write("<cmt>");
gpx.write(StringEscapeUtils.escapeXml(wp.getNote()));
gpx.write("</cmt>");
gpx.write("<desc>");
gpx.write(StringEscapeUtils.escapeXml(wp.getName()));
gpx.write("</desc>");
gpx.write("<sym>");
gpx.write(
StringEscapeUtils.escapeXml(
wp.getWaypointType().toString())); // TODO: Correct identifier string
gpx.write("</sym>");
gpx.write("<type>Waypoint|");
gpx.write(
StringEscapeUtils.escapeXml(
wp.getWaypointType().toString())); // TODO: Correct identifier string
gpx.write("</type>");
gpx.write("</wpt>");
}