public override TupleStream Execute(TupleStream tuple)
{
this.TupleCount++;
var output = new List <string>();
output.Add(this.TupleCount.ToString());
return(new TupleStream(output));
}
public void Execute(TupleStream tuple)
{
var output = this.Operator.Execute(tuple);
if (output != null)
{
SendDownstreamDelegate caller = new SendDownstreamDelegate(this.Client.SendDownstream);
IAsyncResult result = caller.BeginInvoke(output, new AsyncCallback(this.SendDownstreamCallback), null);
}
return;
}
public override TupleStream Execute(TupleStream tuple)
{
var elem = tuple.Elems[this.FieldNumber];
if (!InputTuples.ContainsKey(elem))
{
InputTuples.Add(elem, 1);
return(tuple);
}
InputTuples[elem]++;
return(null);
}
public void SendDownstream(TupleStream tuple)
{
// Console.WriteLine("Remote synchronous and asynchronous delegates.");
// Console.WriteLine(new String('-', 80));
// Console.WriteLine();
Console.WriteLine(this.OutputReplicas.Count);
foreach (Replica rep in this.OutputReplicas)
{
Uri nodeUri = rep.resolve(tuple);
Console.WriteLine(String.Format("Sending {0} to {1}", tuple.Elems[0], nodeUri));
IDictionary prop = new Hashtable();
prop["name"] = Guid.NewGuid().ToString();
prop["typeFilterLevel"] = TypeFilterLevel.Full;
TcpChannel channel = new TcpChannel(prop, null, null);
ChannelServices.RegisterChannel(channel, false);
Node op = (Node)Activator.GetObject(
typeof(Node),
nodeUri.ToString() + "/op");
op.Execute(tuple);
// This delegate is an asynchronous delegate. Two delegates must
// be created. The first is the system-defined AsyncCallback
// delegate, which references the method that the remote type calls
// back when the remote method is done.
AsyncCallback RemoteCallback = new AsyncCallback(this.RemoteCallBack);
// Create the delegate to the remote method you want to use
// asynchronously.
OperatorDelegate RemoteDel = new OperatorDelegate(op.Execute);
// Start the method call. Note that execution on this
// thread continues immediately without waiting for the return of
// the method call.
IAsyncResult RemAr = RemoteDel.BeginInvoke(tuple, RemoteCallback, null);
}
// WaitHandle.WaitAll(AsyncHandles);
// handleNum = 0;
}
public Uri resolve(TupleStream tuple)
{
return(this.RoutingPolicy.resolveRouting(this, tuple));
}
public override TupleStream Execute(TupleStream tuple)
{
Console.WriteLine("Executing dup " + tuple.Elems[0]);
return(tuple);
}
abstract public TupleStream Execute(TupleStream tuple);
public override TupleStream Execute(TupleStream tuple)
{
return(tuple);
}
public Uri resolveRouting(Replica replica, TupleStream tuple)
{
var index = Math.Abs(tuple.Elems[this.fieldNum].GetHashCode() % replica.Nodes.Count);
return(replica.Nodes[index]);
}
public Uri resolveRouting(Replica replica, TupleStream tuple)
{
int r = this.RandomGen.Next(0, replica.Nodes.Count);
return(replica.Nodes[r]);
}
public Uri resolveRouting(Replica replica, TupleStream tuple)
{
return(replica.Nodes[0]);
}
