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);
}
}
