@NonNull
    public static File getGeocacheDataDirectory(@NonNull final String geocode) {
        return new File(getGeocacheDataDirectory(), geocode);
    }
Get the primary geocache data directory for a geocode. A null or empty geocode will be replaced by a default
value.

@param geocode the geocode
@return the geocache data directory
main/src/main/java/cgeo/geocaching/storage/LocalStorage.java