@Override
public List<Protos.Key> serializeToProtobuf() {
lock.lock();
try {
// Most of the serialization work is delegated to the basic key chain, which will serialize
// the bulk of the
// data (handling encryption along the way), and letting us patch it up with the extra data we
// care about.
LinkedList<Protos.Key> entries = newLinkedList();
if (seed != null) {
Protos.Key.Builder mnemonicEntry = BasicKeyChain.serializeEncryptableItem(seed);
mnemonicEntry.setType(Protos.Key.Type.DETERMINISTIC_MNEMONIC);
entries.add(mnemonicEntry.build());
}
Map<ECKey, Protos.Key.Builder> keys = basicKeyChain.serializeToEditableProtobufs();
for (Map.Entry<ECKey, Protos.Key.Builder> entry : keys.entrySet()) {
DeterministicKey key = (DeterministicKey) entry.getKey();
Protos.Key.Builder proto = entry.getValue();
proto.setType(Protos.Key.Type.DETERMINISTIC_KEY);
final Protos.DeterministicKey.Builder detKey = proto.getDeterministicKeyBuilder();
detKey.setChainCode(ByteString.copyFrom(key.getChainCode()));
for (ChildNumber num : key.getPath()) detKey.addPath(num.i());
if (key.equals(externalKey)) {
detKey.setIssuedSubkeys(issuedExternalKeys);
detKey.setLookaheadSize(lookaheadSize);
} else if (key.equals(internalKey)) {
detKey.setIssuedSubkeys(issuedInternalKeys);
detKey.setLookaheadSize(lookaheadSize);
}
// Flag the very first key of following keychain.
if (entries.isEmpty() && isFollowing()) {
detKey.setIsFollowing(true);
}
if (key.getParent() != null) {
// HD keys inherit the timestamp of their parent if they have one, so no need to serialize
// it.
proto.clearCreationTimestamp();
}
entries.add(proto.build());
}
return entries;
} finally {
lock.unlock();
}
}
@Override
public int compare(ECKey k1, ECKey k2) {
ChildNumber cn1 = ((DeterministicKey) k1).getChildNumber();
ChildNumber cn2 = ((DeterministicKey) k2).getChildNumber();
return cn1.compareTo(cn2);
}