InstrumentationTracker.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.Activities / System / Activities / Debugger / InstrumentationTracker.cs / 1305376 / InstrumentationTracker.cs
                        

                        
                            //---------------------------------------------------------------- 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//---------------------------------------------------------------

namespace System.Activities.Debugger 
{
    using System; 
    using System.Collections.Generic; 
    using System.Diagnostics;
    using System.Diagnostics.CodeAnalysis; 
    using System.Linq.Expressions;
    using System.IO;
    using System.Runtime;
 
    // Keep track of instrumentation information.
    // - which subroot has source file but not yet instrumented. 
    // - which subroots share the same source file 
    // SubRoot is defined as an activity that has a source file
    // (Custom Activity). 
    class InstrumentationTracker
    {
        // Root of the workflow to keep track.
        Activity root; 

        // Mapping of subroots to their source files. 
        Dictionary uninstrumentedSubRoots; 

        Dictionary UninstrumentedSubRoots 
        {
            get
            {
                if (this.uninstrumentedSubRoots == null) 
                {
                    InitializeUninstrumentedSubRoots(); 
                } 
                return this.uninstrumentedSubRoots;
            } 
        }

        public InstrumentationTracker(Activity root)
        { 
            this.root = root;
        } 
 
        // Initialize UninstrumentedSubRoots by traversing the workflow.
        void InitializeUninstrumentedSubRoots() 
        {
            this.uninstrumentedSubRoots = new Dictionary();

            Queue activitiesRemaining = new Queue(); 

            CollectSubRoot(this.root); 
            activitiesRemaining.Enqueue(this.root); 

            while (activitiesRemaining.Count > 0) 
            {
                Activity toProcess = activitiesRemaining.Dequeue();

                foreach (Activity activity in WorkflowInspectionServices.GetActivities(toProcess)) 
                {
                    CollectSubRoot(activity); 
                    activitiesRemaining.Enqueue(activity); 
                }
            } 
        }

        // Collect subroot as uninstrumented activity.
        void CollectSubRoot(Activity activity) 
        {
            string sourcePath = XamlDebuggerXmlReader.GetFileName(activity) as string; 
            if (!string.IsNullOrEmpty(sourcePath)) 
            {
                this.uninstrumentedSubRoots.Add(activity, sourcePath); 
            }
        }

        // Whether this is unistrumented sub root. 
        public bool IsUninstrumentedSubRoot(Activity subRoot)
        { 
            return this.UninstrumentedSubRoots.ContainsKey(subRoot); 
        }
 

        // Returns Activities that have the same source as the given subRoot.
        // This will return other instantiation of the same custom activity.
        // Needed to avoid re-instrumentation of the same file. 
        public List GetSameSourceSubRoots(Activity subRoot)
        { 
            string sourcePath; 
            List sameSourceSubRoots = new List();
            if (this.UninstrumentedSubRoots.TryGetValue(subRoot, out sourcePath)) 
            {
                foreach (KeyValuePair entry in this.UninstrumentedSubRoots)
                {
                    if (entry.Value == sourcePath && entry.Key != subRoot) 
                    {
                        sameSourceSubRoots.Add(entry.Key); 
                    } 
                }
            } 
            return sameSourceSubRoots;
        }

        // Mark this sub root as instrumented. 
        public void MarkInstrumented(Activity subRoot)
        { 
            this.UninstrumentedSubRoots.Remove(subRoot); 
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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