static byte[] addChecksum(byte[] input) {
int inputLength = input.length;
byte[] checksummed = new byte[inputLength + 4];
System.arraycopy(input, 0, checksummed, 0, inputLength);
byte[] checksum = Sha256Hash.hashTwice(input);
System.arraycopy(checksum, 0, checksummed, inputLength, 4);
return checksummed;
}
// Adds this channel and optionally notifies the wallet of an update to this extension (used
// during deserialize)
private void putChannel(final StoredClientChannel channel, boolean updateWallet) {
lock.lock();
try {
mapChannels.put(channel.id, channel);
channelTimeoutHandler.schedule(
new TimerTask() {
@Override
public void run() {
TransactionBroadcaster announcePeerGroup = getAnnouncePeerGroup();
removeChannel(channel);
announcePeerGroup.broadcastTransaction(channel.contract);
announcePeerGroup.broadcastTransaction(channel.refund);
}
// Add the difference between real time and Utils.now() so that test-cases can use a
// mock clock.
},
new Date(
channel.expiryTimeSeconds() * 1000
+ (System.currentTimeMillis() - Utils.currentTimeMillis())));
} finally {
lock.unlock();
}
if (updateWallet) updatedChannel(channel);
}
/**
* Returns private key bytes, padded with zeros to 33 bytes.
*
* @throws java.lang.IllegalStateException if the private key bytes are missing.
*/
public byte[] getPrivKeyBytes33() {
byte[] bytes33 = new byte[33];
byte[] priv = getPrivKeyBytes();
System.arraycopy(priv, 0, bytes33, 33 - priv.length, priv.length);
return bytes33;
}
/** This should always be called before attempting to call sendPayment. */
public boolean isExpired() {
return paymentDetails.hasExpires()
&& System.currentTimeMillis() / 1000L > paymentDetails.getExpires();
}