/**
* finds a device pair in the DB. Returns <code>null</code> if no pair found.
*
* @param computerId
* @return
*/
public DevicePair findDevicePair(UUID computerId) {
try {
return pairingDB.findPairing(computerId);
} catch (IOException e) {
Log.e(TAG, "Couldn't find device pairing", e);
} catch (NullPointerException e) {
Log.e(TAG, "Couldn't find device pairing", e);
}
return null;
}
public DevicePair pairNewDevice(
String computerIdString, String computerNameB64, String deviceIdString, String psk64)
throws IOException, IllegalArgumentException {
UUID computerId, deviceId;
String computerName;
byte[] psk;
try {
computerId = UUID.fromString(computerIdString);
computerName = new String(Base64.decode(computerNameB64, Base64.URL_SAFE));
deviceId = UUID.fromString(deviceIdString);
psk = Base64.decode(psk64, Base64.URL_SAFE);
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Incorrect format for pairing string", e);
} catch (IOException e) {
throw new IllegalArgumentException("Incorrect format for pairing string", e);
}
pairingDB.addPairing(computerId, computerName, deviceId, psk);
return new DevicePair(computerId, computerName, deviceId, psk);
}
/**
* Adds a new paired device to the database. String must be in the form: "Computer uuid Computer
* name Device uuid PSK (base64)"
*
* @param pairingString The {@link String} to add
* @throws IOException An error occurs during database IO
* @throws IllegalArgumentException An error occurs decoding the data
*/
public DevicePair pairNewDevice(String pairingString)
throws IOException, IllegalArgumentException {
StringTokenizer tkz = new StringTokenizer(pairingString, "\n");
if (tkz.countTokens() < 4)
throw new IllegalArgumentException("Incorrect format for pairing string");
UUID computerId, deviceId;
String computerName;
byte[] psk;
try {
computerId = UUID.fromString(tkz.nextToken());
computerName = tkz.nextToken();
deviceId = UUID.fromString(tkz.nextToken());
psk = Base64.decode(tkz.nextToken());
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Incorrect format for pairing string", e);
} catch (IOException e) {
throw new IllegalArgumentException("Incorrect format for pairing string", e);
}
pairingDB.addPairing(computerId, computerName, deviceId, psk);
return new DevicePair(computerId, computerName, deviceId, psk);
}
