protected async void ButtonSayHelloSingleInstance_Click(object sender, EventArgs e)
{
var targetGrainKey = this.GsiGrain.Text;
if (string.IsNullOrEmpty(targetGrainKey))
{
this.ReplyText.Text = "Please enter a key";
return;
}
IHelloGrain grainRef = GrainClient.GrainFactory.GetGrain <IHelloGrain>(targetGrainKey,
"HelloGeoGrains.GlobalSingleInstanceGrain");
try
{
string reply = await grainRef.Ping();
this.ReplyText.Text = string.Format("GlobalSingleInstance-Grain \"{0}\" answered: {1}\n\n at {2} UTC", targetGrainKey, reply, DateTime.UtcNow);
}
catch (Exception exc)
{
while (exc is AggregateException)
{
exc = exc.InnerException;
}
this.ReplyText.Text = "Error connecting to Orleans: " + exc + " at " + DateTime.UtcNow + " UTC";
}
}
public async Task ReceiveAsync(IContext context)
{
switch (context.Message)
{
case Started _:
{
_inner = _grains._HelloGrainFactory();
context.SetReceiveTimeout(TimeSpan.FromSeconds(30));
break;
}
case ReceiveTimeout _:
{
context.Stop(context.Self);
break;
}
case GrainRequest request:
{
switch (request.MethodIndex)
{
case 0:
{
var r = HelloRequest.Parser.ParseFrom(request.MessageData);
try
{
var res = await _inner.SayHello(r);
var grainResponse = new GrainResponse
{
MessageData = res.ToByteString(),
};
context.Respond(grainResponse);
}
catch (Exception x)
{
var grainErrorResponse = new GrainErrorResponse
{
Err = x.ToString()
};
context.Respond(grainErrorResponse);
}
break;
}
}
break;
}
}
}
public async Task ReceiveAsync(IContext context)
{
switch (context.Message)
{
case Started _:
{
_inner = Grains._HelloGrainFactory();
break;
}
case GrainRequest request:
{
switch (request.Method)
{
case "SayHello":
{
var r = HelloRequest.Parser.ParseFrom(request.MessageData);
try
{
var res = await _inner.SayHello(r);
var grainResponse = new GrainResponse
{
MessageData = res.ToByteString(),
};
context.Respond(grainResponse);
}
catch (Exception x)
{
var grainErrorResponse = new GrainErrorResponse
{
Err = x.ToString()
};
context.Respond(grainErrorResponse);
}
break;
}
}
break;
}
}
}
public async Task <String> SayHello()
{
IHelloGrain helloGrain = GrainClient.GrainFactory.GetGrain <IHelloGrain>(0);
return(await helloGrain.SayHello());
}
