private Wallet restoreWalletFromBackup() {
InputStream is = null;
try {
is = openFileInput(Constants.Files.WALLET_KEY_BACKUP_PROTOBUF);
final Wallet wallet = new WalletProtobufSerializer().readWallet(is);
if (!wallet.isConsistent()) throw new Error("inconsistent backup");
resetBlockchain();
Toast.makeText(this, R.string.toast_wallet_reset, Toast.LENGTH_LONG).show();
log.info("wallet restored from backup: '" + Constants.Files.WALLET_KEY_BACKUP_PROTOBUF + "'");
return wallet;
} catch (final IOException x) {
throw new Error("cannot read backup", x);
} catch (final UnreadableWalletException x) {
throw new Error("cannot read backup", x);
} finally {
try {
is.close();
} catch (final IOException x) {
// swallow
}
}
}
private void loadWalletFromProtobuf() {
if (walletFile.exists()) {
final long start = System.currentTimeMillis();
FileInputStream walletStream = null;
try {
walletStream = new FileInputStream(walletFile);
wallet = new WalletProtobufSerializer().readWallet(walletStream);
if (!wallet.getParams().equals(Constants.NETWORK_PARAMETERS))
throw new UnreadableWalletException(
"bad wallet network parameters: " + wallet.getParams().getId());
log.info(
"wallet loaded from: '"
+ walletFile
+ "', took "
+ (System.currentTimeMillis() - start)
+ "ms");
} catch (final FileNotFoundException x) {
log.error("problem loading wallet", x);
Toast.makeText(WalletApplication.this, x.getClass().getName(), Toast.LENGTH_LONG).show();
wallet = restoreWalletFromBackup();
} catch (final UnreadableWalletException x) {
log.error("problem loading wallet", x);
Toast.makeText(WalletApplication.this, x.getClass().getName(), Toast.LENGTH_LONG).show();
wallet = restoreWalletFromBackup();
} finally {
if (walletStream != null) {
try {
walletStream.close();
} catch (final IOException x) {
// swallow
}
}
}
if (!wallet.isConsistent()) {
Toast.makeText(this, "inconsistent wallet: " + walletFile, Toast.LENGTH_LONG).show();
wallet = restoreWalletFromBackup();
}
if (!wallet.getParams().equals(Constants.NETWORK_PARAMETERS))
throw new Error("bad wallet network parameters: " + wallet.getParams().getId());
} else {
wallet = new Wallet(Constants.NETWORK_PARAMETERS);
backupWallet();
config.armBackupReminder();
log.info("new wallet created");
}
}
