private static async Task <BankAccountGrainState> ActiveStateProcessor(
BankAccountGrainState state,
BankAccountMessage message)
=>
await
message.Match(
HandleInvalidMessage,
ActiveStateMessageDelegator.HandleActiveStateDepositMessage(state),
ActiveStateMessageDelegator.HandleActiveStateWithdrawMessage(state));
private static async Task <BankAccountGrainState> OverdrawnStateProcessor(
BankAccountGrainState state,
BankAccountMessage message)
{
var messageHandler = new OverdrawnStateMessageHandler();
return
(await
message.Match(
() => { throw new InvalidMessage(); },
_ => messageHandler.Deposit(state, _),
_ => { throw new InvalidMessage(); }));
}
private static async Task <BankAccountGrainState> ZeroBalanceStateProcessor(
BankAccountGrainState state,
BankAccountMessage message)
{
var messageHandler = new ZeroBalanceStateMessageHandler();
return
(await
message.Match(
() => messageHandler.Close(state),
_ => messageHandler.Deposit(state, _),
_ => messageHandler.Withdraw(state, _)));
}
private static Task <BankAccountGrainState> ClosedStateProcessor(
BankAccountGrainState state,
BankAccountMessage message)
{
throw new InvalidMessage(message);
}