private DistributedTraceInformation CorrelateFromMessage <T>(GrainMessage <T> message)
{
var dti = new DistributedTraceInformation();
dti.ParentSpanId = long.Parse(message.Headers[TracingConstants.ExternalParentSpanIdHeader]);
dti.TraceId = long.Parse(message.Headers[TracingConstants.ExternalTraceIdHeader]);
return(dti);
}
public Task <string> GreetMe(GrainMessage <string> nameMessage)
{
return(Task.Run <string>(() => {
using (var span = CustomSpan.CreateEntry(this, () => { return CorrelateFromMessage <string>(nameMessage); }))
{
span.SetData("name", nameMessage.Content);
span.SetTag("service", this.GetType().Name);
return $"Hello {nameMessage.Content}";
}
}));
}
private static async Task DoClientWork(IClusterClient client)
{
await Task.Run(async() =>
{
using (var span = CustomSpan.CreateEntry(null, (ISpanContext)null))
{
span.SetTag("service", "OrleansExampleClient");
// example of calling grains from the initialized client
var friend = client.GetGrain <IHelloGrain>(0);
var message = new GrainMessage <string>("Oliver Twist");
using (var exitSpan = CustomSpan.CreateExit(friend, (name, value) => { message.Headers.Add(name, value); }))
{
exitSpan.SetTag("service", "OrleansExampleClient");
var response = await friend.GreetMe(message);
Console.WriteLine("\n\n{0}\n\n", response);
}
}
});
}
