Smrf.NodeXL.ExcelTemplate.GraphMetricCalculationManager.CalculateGraphMetricsAsyncInternal C# (CSharp) Method

    CalculateGraphMetricsAsyncInternal
    (
        CalculateGraphMetricsAsyncArgs oCalculateGraphMetricsAsyncArgs,
        BackgroundWorker oBackgroundWorker,
        DoWorkEventArgs oDoWorkEventArgs
    )
    {
        Debug.Assert(oCalculateGraphMetricsAsyncArgs != null);
        Debug.Assert(oBackgroundWorker != null);
        Debug.Assert(oDoWorkEventArgs != null);
        AssertValid();

        IGraph oGraph = oCalculateGraphMetricsAsyncArgs.Graph;

        List<GraphMetricColumn> oAggregatedGraphMetricColumns =
            new List<GraphMetricColumn>();

        CalculateGraphMetricsContext oCalculateGraphMetricsContext =
            new CalculateGraphMetricsContext(
                oCalculateGraphMetricsAsyncArgs.GraphMetricUserSettings,
                oBackgroundWorker);

        Boolean bDuplicateEdgesRemoved = false;

        foreach (IGraphMetricCalculator2 oGraphMetricCalculator in
            oCalculateGraphMetricsAsyncArgs.SortedGraphMetricCalculators)
        {
            if (!oGraphMetricCalculator.HandlesDuplicateEdges &&
                !bDuplicateEdgesRemoved)
            {
                // This and the remainder of the graph metric calculators
                // cannot handle duplicate edges.  Remove them from the graph.

                oGraph.Edges.RemoveDuplicates();
                bDuplicateEdgesRemoved = true;
            }

            // Calculate the implementation's graph metrics.

            GraphMetricColumn [] aoGraphMetricColumns;

            if ( !oGraphMetricCalculator.TryCalculateGraphMetrics(oGraph,
                oCalculateGraphMetricsContext, out aoGraphMetricColumns) )
            {
                // The user cancelled.

                oDoWorkEventArgs.Cancel = true;

                oBackgroundWorker.ReportProgress(0,
                    new GraphMetricProgress("Cancelled.", false)
                    );

                return;
            }

            // Aggregate the results.

            Debug.Assert(aoGraphMetricColumns != null);

            oAggregatedGraphMetricColumns.AddRange(aoGraphMetricColumns);
        }

        oDoWorkEventArgs.Result = oAggregatedGraphMetricColumns.ToArray();

        oBackgroundWorker.ReportProgress(100,
            new GraphMetricProgress(
                "Inserting metrics into the workbook.",
                true)
            );

        // Let the dialog the display the final progress report and update its
        // controls.

        System.Threading.Thread.Sleep(1);
    }