WebServiceFault.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / WebServiceFault.cs / 1305376 / WebServiceFault.cs
                        
                        
                            using System; 
using System.Reflection;
using System.Drawing;
using System.Drawing.Design;
using System.Collections; 
using System.Collections.Generic;
using System.Collections.Specialized; 
using System.ComponentModel; 
using System.ComponentModel.Design;
using System.Workflow.ComponentModel; 
using System.Workflow.Runtime;
using System.Workflow.ComponentModel.Design;
using System.Workflow.ComponentModel.Compiler;
using System.Runtime.Remoting.Messaging; 
using System.Diagnostics;
using System.Globalization; 
using System.Workflow.Activities.Common; 

namespace System.Workflow.Activities 
{
    #region WebServiceFaultActivity
    [SRDescription(SR.WebServiceFaultActivityDescription)]
    [SRCategory(SR.Standard)] 
    [ToolboxBitmap(typeof(WebServiceFaultActivity), "Resources.WebServiceOut.png")]
    [Designer(typeof(WebServiceFaultDesigner), typeof(IDesigner))] 
    [ActivityValidator(typeof(WebServiceFaultValidator))] 
    [DefaultEvent("SendingFault")]
    public sealed class WebServiceFaultActivity : Activity , IPropertyValueProvider 
    {
        #region Dependency Properties
        public static readonly DependencyProperty InputActivityNameProperty = DependencyProperty.Register("InputActivityName", typeof(string), typeof(WebServiceFaultActivity), new PropertyMetadata("",DependencyPropertyOptions.Metadata));
        public static readonly DependencyProperty FaultProperty = DependencyProperty.Register("Fault", typeof(Exception), typeof(WebServiceFaultActivity)); 
        public static readonly DependencyProperty SendingFaultEvent = DependencyProperty.Register("SendingFault", typeof(EventHandler), typeof(WebServiceFaultActivity));
        #endregion 
 
        #region Constructors
 
        public WebServiceFaultActivity()
        {
        }
 
        public WebServiceFaultActivity(string name)
            : base(name) 
        { 
        }
 
        #endregion

        #region Properties
        [SRCategory(SR.Activity)] 
        [SRDescription(SR.ReceiveActivityNameDescription)]
        [TypeConverter(typeof(PropertyValueProviderTypeConverter))] 
        [RefreshProperties(RefreshProperties.All)] 
        [MergablePropertyAttribute(false)]
        [DefaultValue("")] 
        public string InputActivityName
        {
            get
            { 
                return base.GetValue(InputActivityNameProperty) as string;
            } 
 
            set
            { 
                base.SetValue(InputActivityNameProperty, value);
            }
        }
 
        [Browsable(true)]
        [SRCategory(SR.Properties)] 
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)] 
        [DefaultValue(null)]
        [MergablePropertyAttribute(false)] 
        public Exception Fault
        {
            get
            { 
                return base.GetValue(FaultProperty) as Exception;
            } 
            set 
            {
                base.SetValue(FaultProperty, value); 
            }
        }
        #endregion
 
        #region Handlers
        [SRDescription(SR.OnBeforeFaultingDescr)] 
        [SRCategory(SR.Handlers)] 
        [MergableProperty(false)]
        public event EventHandler SendingFault 
        {
            add
            {
                base.AddHandler(SendingFaultEvent, value); 
            }
            remove 
            { 
                base.RemoveHandler(SendingFaultEvent, value);
            } 
        }
        #endregion

        #region IPropertyValueProvider Implementation 
        ICollection IPropertyValueProvider.GetPropertyValues(ITypeDescriptorContext context)
        { 
            StringCollection names = new StringCollection(); 
            if (context.PropertyDescriptor.Name == "InputActivityName")
            { 
                foreach (Activity activity in WebServiceActivityHelpers.GetPreceedingActivities(this))
                {
                    if (activity is WebServiceInputActivity)
                    { 
                        names.Add(activity.QualifiedName);
                    } 
                } 
            }
            return names; 
        }
        #endregion

        #region Protected Methods 
        protected override void Initialize(IServiceProvider provider)
        { 
            if (this.Parent == null) 
                throw new InvalidOperationException(SR.GetString(SR.Error_MustHaveParent));
 
            base.Initialize(provider);
        }

        protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext) 
        {
            if (executionContext == null) 
                throw new ArgumentNullException("executionContext"); 

            if (this.Fault == null) 
            {
                throw new InvalidOperationException(SR.GetString(CultureInfo.CurrentCulture, SR.Error_PropertyNotSet, FaultProperty.Name));
            }
 
            WorkflowQueuingService queueService = executionContext.GetService();
 
            // fire event 
            this.RaiseEvent(WebServiceFaultActivity.SendingFaultEvent, this, EventArgs.Empty);
 
            WebServiceInputActivity webservicereceive = this.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
            IComparable queueId = new EventQueueName(webservicereceive.InterfaceType, webservicereceive.MethodName, webservicereceive.QualifiedName);
            Debug.Assert(queueService.Exists(queueId));
            IMethodResponseMessage responseMessage = null; 
            WorkflowQueue queue = queueService.GetWorkflowQueue(queueId);
 
            if (queue.Count != 0) 
                responseMessage = queue.Dequeue() as IMethodResponseMessage;
 
            System.Diagnostics.Debug.Assert(responseMessage != null);

            // populate exception & reset the waiting thread
            responseMessage.SendException(this.Fault); 

            return ActivityExecutionStatus.Closed; 
        } 
        #endregion
    } 
    #endregion

    #region Validator
    internal sealed class WebServiceFaultValidator : ActivityValidator 
    {
        public override ValidationErrorCollection Validate(ValidationManager manager, object obj) 
        { 
            ValidationErrorCollection validationErrors = base.Validate(manager, obj);
 
            WebServiceFaultActivity webServiceFault = obj as WebServiceFaultActivity;

            if (webServiceFault == null)
                throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(WebServiceFaultActivity).FullName), "obj"); 

            if (Helpers.IsActivityLocked(webServiceFault)) 
            { 
                return validationErrors;
            } 

            WebServiceInputActivity webServiceReceive = null;

            if (String.IsNullOrEmpty(webServiceFault.InputActivityName)) 
                validationErrors.Add(ValidationError.GetNotSetValidationError("InputActivityName"));
            else 
            { 
                ITypeProvider typeProvider = (ITypeProvider)manager.GetService(typeof(ITypeProvider));
 
                if (typeProvider == null)
                    throw new InvalidOperationException(SR.GetString(SR.General_MissingService, typeof(ITypeProvider).FullName));

                bool foundMatchingReceive = false; 
                foreach (Activity activity in WebServiceActivityHelpers.GetPreceedingActivities(webServiceFault))
                { 
                    if ((activity is WebServiceFaultActivity && String.Compare(((WebServiceFaultActivity)activity).InputActivityName, webServiceFault.InputActivityName, StringComparison.Ordinal) == 0) || 
                        (activity is WebServiceOutputActivity && String.Compare(((WebServiceOutputActivity)activity).InputActivityName, webServiceFault.InputActivityName, StringComparison.Ordinal) == 0))
                    { 
                        if (activity is WebServiceFaultActivity)
                            validationErrors.Add(new ValidationError(SR.GetString(SR.Error_DuplicateWebServiceFaultFound, activity.Name, webServiceFault.InputActivityName), ErrorNumbers.Error_DuplicateWebServiceFaultFound));
                        else
                            validationErrors.Add(new ValidationError(SR.GetString(SR.Error_DuplicateWebServiceResponseFound, activity.Name, webServiceFault.InputActivityName), ErrorNumbers.Error_DuplicateWebServiceResponseFound)); 
                        return validationErrors;
                    } 
                } 

                foreach (Activity activity in WebServiceActivityHelpers.GetPreceedingActivities(webServiceFault)) 
                {

                    if (String.Compare(activity.QualifiedName, webServiceFault.InputActivityName, StringComparison.OrdinalIgnoreCase) == 0)
                    { 
                        if (activity is WebServiceInputActivity)
                        { 
                            webServiceReceive = activity as WebServiceInputActivity; 
                            foundMatchingReceive = true;
                        } 
                        else
                        {
                            foundMatchingReceive = false;
                            validationErrors.Add(new ValidationError(SR.GetString(SR.Error_WebServiceReceiveNotValid, webServiceFault.InputActivityName), ErrorNumbers.Error_WebServiceReceiveNotValid)); 
                            return validationErrors;
                        } 
                        break; 
                    }
                } 

                if (!foundMatchingReceive)
                {
                    validationErrors.Add(new ValidationError(SR.GetString(SR.Error_WebServiceReceiveNotFound, webServiceFault.InputActivityName), ErrorNumbers.Error_WebServiceReceiveNotFound)); 
                    return validationErrors;
                } 
 
                Type interfaceType = null;
 
                if (webServiceReceive.InterfaceType != null)
                   interfaceType = typeProvider.GetType(webServiceReceive.InterfaceType.AssemblyQualifiedName);

                if (interfaceType == null) 
                {
                    validationErrors.Add(new ValidationError(SR.GetString(SR.Error_WebServiceReceiveNotConfigured, webServiceReceive.Name), ErrorNumbers.Error_WebServiceReceiveNotConfigured)); 
                    return validationErrors; 
                }
 
                // Validate method
                if (String.IsNullOrEmpty(webServiceReceive.MethodName))
                {
                    validationErrors.Add(new ValidationError(SR.GetString(SR.Error_WebServiceReceiveNotConfigured, webServiceReceive.Name), ErrorNumbers.Error_WebServiceReceiveNotConfigured)); 
                    return validationErrors;
                } 
 
                MethodInfo methodInfo = Helpers.GetInterfaceMethod(interfaceType, webServiceReceive.MethodName);
 
                if (methodInfo == null)
                {
                    validationErrors.Add(new ValidationError(SR.GetString(SR.Error_WebServiceReceiveNotConfigured, webServiceReceive.Name), ErrorNumbers.Error_WebServiceReceiveNotConfigured));
                    return validationErrors; 
                }
 
                List inputParameters, outParameters; 
                WebServiceActivityHelpers.GetParameterInfo(methodInfo, out inputParameters, out outParameters);
 
                if (outParameters.Count == 0)
                {
                    validationErrors.Add(new ValidationError(SR.GetString(SR.Error_WebServiceFaultNotNeeded), ErrorNumbers.Error_WebServiceFaultNotNeeded));
                    return validationErrors; 
                }
            } 
            return validationErrors; 
        }
    } 
    #endregion
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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WebServiceFault.cs source code in C# .NET

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