private static async Task Run(string[] args)
{
var serviceName = new Uri("fabric:/StatelessCalculatorApp/StatelessCalculatorService");
var builder = new ClientBuilder();
builder.UseConfiguration(new ClientConfiguration());
// Use Service Fabric for managing cluster membership.
builder.AddServiceFabricMembership(serviceName);
// Add the application assemblies.
builder.AddApplicationPart(typeof(ICalculatorGrain).Assembly);
// Optional: configure logging.
builder.ConfigureLogging(logging => logging.AddDebug());
builder.ConfigureServices(
services =>
{
// Some deployments require a custom FabricClient, eg so that cluster endpoints and certificates can be configured.
// A pre-configured FabricClient can be injected.
var fabricClient = new FabricClient();
services.AddSingleton(fabricClient);
});
// Creat the client and connect to the cluster.
var client = builder.Build();
await client.Connect();
double result;
if (args.Length < 1)
{
Console.WriteLine(
$"Usage: {Assembly.GetExecutingAssembly()} <operation> [operand]\n\tOperations: get, set, add, subtract, multiple, divide");
return;
}
var value = args.Length > 1 ? double.Parse(args[1]) : 0;
var calculator = client.GetGrain <ICalculatorGrain>(Guid.Empty);
var observer = new CalculatorObserver();
var observerReference = await client.CreateObjectReference <ICalculatorObserver>(observer);
var cancellationTokenSource = new CancellationTokenSource();
var subscriptionTask = StaySubscribed(calculator, observerReference, cancellationTokenSource.Token);
switch (args[0].ToLower())
{
case "stress":
result = await StressTest(client);
break;
case "add":
case "+":
result = await calculator.Add(value);
break;
case "subtract":
case "-":
result = await calculator.Subtract(value);
break;
case "multiply":
case "*":
result = await calculator.Multiply(value);
break;
case "divide":
case "/":
result = await calculator.Divide(value);
break;
case "set":
result = await calculator.Set(value);
break;
case "get":
default:
result = await calculator.Get();
break;
}
Console.WriteLine(result);
Console.WriteLine("Listening for updates to calculations. Press any key to exit.");
Console.ReadKey();
cancellationTokenSource.Cancel();
await subscriptionTask;
}