private byte[] setZID() {
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
try {
byte[] zid = new byte[12];
SecureRandom.getInstance("SHA1PRNG").nextBytes(zid);
String encodedZid = Base64.encodeBytes(zid);
preferences.edit().putString("ZID", encodedZid).commit();
return zid;
} catch (NoSuchAlgorithmException e) {
throw new IllegalArgumentException(e);
}
}
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);
}
}
