FromReply.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.ServiceModel.Activities / System / ServiceModel / Activities / FromReply.cs / 1305376 / FromReply.cs

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

namespace System.ServiceModel.Activities 
{
    using System.Activities; 
    using System.Collections.Generic; 
    using System.Collections.ObjectModel;
    using System.Runtime; 
    using System.ServiceModel.Channels;
    using System.ServiceModel.Dispatcher;
    using SR2 = System.ServiceModel.Activities.SR;
 
    class FromReply : CodeActivity
    { 
        Collection parameters; 

        public InArgument Message 
        {
            get;
            set;
        } 

        public IClientMessageFormatter Formatter 
        { 
            get;
            set; 
        }

        public IClientFaultFormatter FaultFormatter
        { 
            get;
            set; 
        } 

        public OutArgument Result 
        {
            get;
            set;
        } 

        public Collection Parameters 
        { 
            get
            { 
                if (this.parameters == null)
                {
                    this.parameters = new Collection();
                } 
                return this.parameters;
            } 
        } 

        protected override void CacheMetadata(CodeActivityMetadata metadata) 
        {
            RuntimeArgument messageArgument = new RuntimeArgument(Constants.Message, Constants.MessageType, ArgumentDirection.In, true);
            metadata.Bind(this.Message, messageArgument);
            metadata.AddArgument(messageArgument); 

            if (this.Result != null) 
            { 
                RuntimeArgument resultArgument = new RuntimeArgument(Constants.Result, this.Result.ArgumentType, ArgumentDirection.Out);
                metadata.Bind(this.Result, resultArgument); 
                metadata.AddArgument(resultArgument);
            }

            if (this.parameters != null) 
            {
                int count = 0; 
                foreach (OutArgument parameter in this.parameters) 
                {
                    RuntimeArgument parameterArgument = new RuntimeArgument(Constants.Message + count++, parameter.ArgumentType, ArgumentDirection.Out); 
                    metadata.Bind(parameter, parameterArgument);
                    metadata.AddArgument(parameterArgument);
                }
            } 
        }
 
        protected override void Execute(CodeActivityContext context) 
        {
            Message inMessage = this.Message.Get(context); 

            if (inMessage == null)
            {
                throw FxTrace.Exception.AsError(new InvalidOperationException(SR.NullReplyMessageContractMismatch)); 
            }
            if (inMessage.IsFault) 
            { 
                FaultConverter faultConverter = FaultConverter.GetDefaultFaultConverter(inMessage.Version);
                Exception exception = DeserializeFault(inMessage, faultConverter); 

                // We simply throw the exception
                throw FxTrace.Exception.AsError(exception);
            } 
            else
            { 
                object[] outObjects; 
                if (this.parameters != null)
                { 
                    outObjects = new object[this.parameters.Count];
                }
                else
                { 
                    outObjects = Constants.EmptyArray;
                } 
 
                object returnValue = this.Formatter.DeserializeReply(inMessage, outObjects);
 
                if (this.Result != null)
                {
                    this.Result.Set(context, returnValue);
                } 

                if (parameters != null) 
                { 
                    for (int i = 0; i < this.parameters.Count; i++)
                    { 
                        OutArgument outArgument = this.parameters[i];
                        Fx.Assert(outArgument != null, "Parameter cannot be null");

                        object obj = outObjects[i]; 
                        if (obj == null)
                        { 
                            obj = ProxyOperationRuntime.GetDefaultParameterValue(outArgument.ArgumentType); 
                        }
 
                        outArgument.Set(context, obj);
                    }
                }
            } 
        }
 
        Exception DeserializeFault(Message inMessage, FaultConverter faultConverter) 
        {
            // Reproduce logic in ClientOperationFormatterHelper 

            MessageFault messageFault = MessageFault.CreateFault(inMessage, TransportDefaults.MaxFaultSize);
            string action = inMessage.Headers.Action;
            if (action == inMessage.Version.Addressing.DefaultFaultAction) 
            {
                action = null; 
            } 

            Exception exception = null; 
            if (faultConverter != null)
            {
                faultConverter.TryCreateException(inMessage, messageFault, out exception);
            } 

            if (exception == null) 
            { 
                exception = this.FaultFormatter.Deserialize(messageFault, action);
            } 

            if (inMessage.State != MessageState.Created)
            {
                inMessage.Close(); 
            }
 
            return exception; 
        }
    } 
}

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

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