WorkflowInspectionServices.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.Activities / System / Activities / WorkflowInspectionServices.cs / 1305376 / WorkflowInspectionServices.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.Activities 
{
    using System; 
    using System.Collections.Generic; 
    using System.Collections;
    using System.Runtime; 
    using System.Activities.Validation;

    public static class WorkflowInspectionServices
    { 
        public static void CacheMetadata(Activity rootActivity)
        { 
            CacheMetadata(rootActivity, null); 
        }
 
        public static void CacheMetadata(Activity rootActivity, LocationReferenceEnvironment hostEnvironment)
        {
            if (rootActivity == null)
            { 
                throw FxTrace.Exception.ArgumentNull("rootActivity");
            } 
 
            if (rootActivity.HasBeenAssociatedWithAnInstance)
            { 
                throw FxTrace.Exception.AsError(new InvalidOperationException(SR.RootActivityAlreadyAssociatedWithInstance(rootActivity.DisplayName)));
            }

            IList validationErrors = null; 

            if (hostEnvironment == null) 
            { 
                hostEnvironment = new ActivityLocationReferenceEnvironment();
            } 

            ActivityUtilities.CacheRootMetadata(rootActivity, hostEnvironment, ProcessActivityTreeOptions.FullCachingOptions, null, ref validationErrors);

            ActivityValidationServices.ThrowIfViolationsExist(validationErrors); 
        }
 
        public static Activity Resolve(Activity root, string id) 
        {
            if (root == null) 
            {
                throw FxTrace.Exception.ArgumentNull("root");
            }
 
            if (string.IsNullOrEmpty(id))
            { 
                throw FxTrace.Exception.ArgumentNullOrEmpty("id"); 
            }
 
            if (!root.IsMetadataCached)
            {
                IList validationErrors = null;
 
                ActivityUtilities.CacheRootMetadata(root, new ActivityLocationReferenceEnvironment(), ProcessActivityTreeOptions.FullCachingOptions, null, ref validationErrors);
 
                ActivityValidationServices.ThrowIfViolationsExist(validationErrors); 
            }
 
            QualifiedId parsedId = QualifiedId.Parse(id);

            Activity result;
            if (!QualifiedId.TryGetElementFromRoot(root, parsedId, out result)) 
            {
                throw FxTrace.Exception.Argument("id", SR.IdNotFoundInWorkflow(id)); 
            } 

            return result; 
        }

        public static IEnumerable GetActivities(Activity activity)
        { 
            if (activity == null)
            { 
                throw FxTrace.Exception.ArgumentNull("activity"); 
            }
 
            if (!activity.IsMetadataCached)
            {
                IList validationErrors = null;
 
                ActivityUtilities.CacheRootMetadata(activity, new ActivityLocationReferenceEnvironment(), ProcessActivityTreeOptions.FullCachingOptions, null, ref validationErrors);
 
                ActivityValidationServices.ThrowIfViolationsExist(validationErrors); 
            }
 
            int i = 0;
            for (; i < activity.RuntimeArguments.Count; i++)
            {
                RuntimeArgument argument = activity.RuntimeArguments[i]; 

                if (argument.BoundArgument != null && argument.BoundArgument.Expression != null) 
                { 
                    yield return argument.BoundArgument.Expression;
                } 
            }

            for (i = 0; i < activity.RuntimeVariables.Count; i++)
            { 
                Variable variable = activity.RuntimeVariables[i];
 
                if (variable.Default != null) 
                {
                    yield return variable.Default; 
                }
            }

            for (i = 0; i < activity.ImplementationVariables.Count; i++) 
            {
                Variable variable = activity.ImplementationVariables[i]; 
 
                if (variable.Default != null)
                { 
                    yield return variable.Default;
                }
            }
 
            for (i = 0; i < activity.Children.Count; i++)
            { 
                yield return activity.Children[i]; 
            }
 
            for (i = 0; i < activity.ImportedChildren.Count; i++)
            {
                yield return activity.ImportedChildren[i];
            } 

            for (i = 0; i < activity.ImplementationChildren.Count; i++) 
            { 
                yield return activity.ImplementationChildren[i];
            } 

            for (i = 0; i < activity.Delegates.Count; i++)
            {
                ActivityDelegate activityDelegate = activity.Delegates[i]; 

                if (activityDelegate.Handler != null) 
                { 
                    yield return activityDelegate.Handler;
                } 
            }

            for (i = 0; i < activity.ImportedDelegates.Count; i++)
            { 
                ActivityDelegate activityDelegate = activity.ImportedDelegates[i];
 
                if (activityDelegate.Handler != null) 
                {
                    yield return activityDelegate.Handler; 
                }
            }

            for (i = 0; i < activity.ImplementationDelegates.Count; i++) 
            {
                ActivityDelegate activityDelegate = activity.ImplementationDelegates[i]; 
 
                if (activityDelegate.Handler != null)
                { 
                    yield return activityDelegate.Handler;
                }
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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WorkflowInspectionServices.cs source code in C# .NET

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