protected async void ButtonLookup_Click(object sender, EventArgs e)
{
TextBox2.Text = "";
try
{
IEventGrain grainRef = GrainClient.GrainFactory.GetGrain <IEventGrain>(NameTextBox.Text);
var topThree = await grainRef.GetTopThree();
var s = new StringBuilder();
if (topThree.Count > 0)
{
s.AppendLine("First Place: " + topThree[0]);
}
if (topThree.Count > 1) // if this were real we would check for ties
{
s.AppendLine("Second Place: " + topThree[1]);
}
if (topThree.Count > 2)
{
s.AppendLine("Third Place: " + topThree[2]);
}
TextBox2.Text = s.ToString();
}
catch (Exception exc)
{
while (exc is AggregateException)
{
exc = exc.InnerException;
}
TextBox2.Text = exc.ToString();
}
}
private async Task GenChange(IEventGrain eventGrain, int count)
{
for (int i = 0; i < count; i++)
{
await eventGrain.Update(new Change
{
Name = "GenChangeTask",
Value = i,
When = DateTimeOffset.UtcNow
});
}
}
public Task Start()
{
// keep generating for at least 10 minutes
DelayDeactivation(TimeSpan.FromMinutes(10));
// use different deterministic pseudo-random sequence for each grain
random = new Random((int)this.GetPrimaryKeyLong());
if (!started)
{
started = true;
// find event grain for this generator
eventGrain = GrainFactory.GetGrain <IEventGrain>("event" + this.GetPrimaryKeyLong());
RegisterTimer(Generate, null,
TimeSpan.FromSeconds(random.Next(20)), // start within 20 secs
TimeSpan.FromSeconds(2 + random.NextDouble())); // one outcome about every 2.5 seconds
}
return(TaskDone.Done);
}