Created
May 27, 2015 10:37
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Partitioning events with Akka.net (linqpad - reference akka.net and Rx-main)
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void Main() | |
{ | |
var system = ActorSystem.Create("MySystem"); | |
var greeters = system.ActorOf(Props.Create(() => new DeviceSplitter())); | |
var r = new System.Random(); | |
var measures = Enumerable.Repeat(new [] {"a","b","c","d"}, 250000) | |
.SelectMany(c => c) | |
.Select (id => new Measure(id,r.Next())); | |
foreach (var m in measures) greeters.Tell(m); | |
Console.ReadLine(); | |
} | |
public class Measure | |
{ | |
public Measure(string deviceId, double value) | |
{ | |
DeviceId = deviceId; | |
Value = value; | |
} | |
public string DeviceId { get;private set; } | |
public double Value { get;private set; } | |
} | |
public class Dump {} | |
public class DeviceSplitter : ReceiveActor | |
{ | |
public DeviceSplitter() | |
{ | |
Dictionary<string,IActorRef> knownDevices = new Dictionary<string,IActorRef>(); | |
Receive<Measure>(m => { | |
if (!knownDevices.ContainsKey(m.DeviceId)) knownDevices.Add(m.DeviceId, Context.ActorOf(Props.Create(() => new DeviceActor()))); | |
knownDevices[m.DeviceId].Tell(m); | |
}); | |
} | |
} | |
public class DeviceActor : ReceiveActor | |
{ | |
public DeviceActor() { | |
var measures = new List<Measure>(); | |
var subject = new ReplaySubject<Measure>(); | |
Receive<Measure>(m => { | |
subject.OnNext(m); | |
}); | |
subject.Buffer(5000).Subscribe(m => | |
Console.WriteLine("Average over last {0} from {1} = {2}",m.Count(),m.First().DeviceId,m.Average (x => x.Value))); | |
} | |
} |
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