Ejemplo n.º 1
0
Archivo: Input.cs Proyecto: omidm/naiad
        internal StreamingInputStage(DataSource <R> source, Placement placement, InternalComputation internalComputation, string inputName)
        {
            this.inputName = inputName;

            this.stage = Foundry.NewStage(new TimeContext <Epoch>(internalComputation.ContextManager.RootContext), (i, v) => new StreamingInputVertex <R>(i, v), this.inputName);

            this.output = stage.NewOutput(vertex => vertex.output);

            this.stage.Materialize();

            this.localVertices = placement.Where(x => x.ProcessId == internalComputation.Controller.Configuration.ProcessID)
                                 .Select(x => this.stage.GetVertex(x.VertexId) as StreamingInputVertex <R>)
                                 .ToArray();

            source.RegisterInputs(this.localVertices);

            this.completedCalled             = false;
            this.hasActivatedProgressTracker = false;

            // results in pointstamp comparisons which assert w/o this.
            this.InternalComputation.Reachability.UpdateReachabilityPartialOrder(internalComputation);
            this.InternalComputation.Reachability.DoNotImpersonate(stage.StageId);

            var initialVersion = new Runtime.Progress.Pointstamp(stage.StageId, new int[] { 0 });

            internalComputation.ProgressTracker.BroadcastProgressUpdate(initialVersion, placement.Count);
        }