public void serializeToFile(Context context) {
if (this.bloomFilter == null) return;
try {
FileOutputStream fout = context.openFileOutput(DIRECTORY_FILE, 0);
String numberFilter = Base64.encodeBytes(bloomFilter.getFilter());
NumberFilterStorage storage =
new NumberFilterStorage(numberFilter, bloomFilter.getHashCount());
storage.serializeToStream(fout);
fout.close();
} catch (IOException ioe) {
Log.w("NumberFilter", ioe);
}
}