private void sendTakeovers() throws InterruptedException {
RpcList rpcs = new RpcList();
for (String location : clients) {
Services.Client client = connections.getClient0(location);
if (client == null) {
clients.remove(location);
} else {
Rpc rpc = rpcf.create();
client.masterTakeover(rpc, newMaster, new TakeoverCallback(location));
rpcs.add(rpc);
}
}
rpcs.awaitAll();
}
private synchronized void sendInitialMasterTakeover(String clientLocation) {
Services.Client client = connections.getClient0(clientLocation);
// Step 1: Send takeover.
Rpc rpc1 = rpcf.create();
RpcCallback<MasterTakeoverResponse> done1 =
new RemoveParticipantIfFailsCallback<MasterTakeoverResponse>(clientLocation, rpc1);
client.masterTakeover(rpc1, getMasterInfo(), done1);
// Step 2: Send all state.
sendFullState(clientLocation);
// Step 3: Finish takeover.
Rpc rpc2 = rpcf.create();
RpcCallback<Empty> done2 = new RemoveParticipantIfFailsCallback<Empty>(clientLocation, rpc2);
client.masterTakeoverFinished(rpc2, getMasterInfo(), done2);
}