private void getMostRecentState() throws InterruptedException {
boolean successful = false;
while (!successful && !aborted.get()) {
ClientState bestClient = getBestClient(clientStates);
if (bestClient == null) {
successful = true;
continue;
}
Services.Client client = connections.getClient0(bestClient.getLocation());
if (client == null) {
clients.remove(bestClient.getLocation());
continue;
}
Rpc rpc = rpcf.create();
FullStateCallback done = new FullStateCallback();
client.getFullState(rpc, Empty.getDefaultInstance(), done);
rpc.await();
successful = rpc.isOk();
if (!successful) {
clients.remove(bestClient.getLocation());
}
}
}
@Override
public void joinNetworkRequest(
RpcController controller, ClientState request, RpcCallback<Empty> done) {
sendInitialMasterTakeover(request.getLocation());
addParticipant(request.getLocation());
done.run(Empty.getDefaultInstance());
}
private ClientState getBestClient(List<ClientState> clients) {
if (clients.isEmpty()) {
return null;
}
ClientState best = clients.get(0);
for (ClientState client : clients) {
if (client.getRevision() > best.getRevision()) {
best = client;
}
}
return best;
}