ReceiveParametersContent.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.ServiceModel.Activities / System / ServiceModel / Activities / ReceiveParametersContent.cs / 1305376 / ReceiveParametersContent.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.Runtime.Collections;
    using System.ServiceModel.Description;
    using System.Windows.Markup;
 
    [ContentProperty("Parameters")]
    public sealed class ReceiveParametersContent : ReceiveContent 
    { 
        string[] argumentNames;
        Type[] argumentTypes; 

        public ReceiveParametersContent()
            : base()
        { 
            this.Parameters = new OrderedDictionary();
        } 
 
        public ReceiveParametersContent(IDictionary parameters)
            : base() 
        {
            if (parameters == null)
            {
                throw FxTrace.Exception.ArgumentNull("parameters"); 
            }
 
            this.Parameters = new OrderedDictionary(parameters); 
        }
 
        public IDictionary Parameters
        {
            get;
            private set; 
        }
 
        internal string[] ArgumentNames 
        {
            get 
            {
                if (this.argumentNames == null)
                {
                    ShredParameters(); 
                }
                return this.argumentNames; 
            } 
        }
 
        internal Type[] ArgumentTypes
        {
            get
            { 
                if (this.argumentTypes == null)
                { 
                    ShredParameters(); 
                }
                return this.argumentTypes; 
            }
        }

        void ShredParameters() 
        {
            // Turn Dictionary into ordered Argument arrays 
            int argumentCount = this.Parameters.Count; 
            this.argumentNames = new string[argumentCount];
            this.argumentTypes = new Type[argumentCount]; 

            int index = 0;
            foreach (KeyValuePair pair in this.Parameters)
            { 
                this.argumentNames[index] = pair.Key;
                this.argumentTypes[index] = pair.Value.ArgumentType; 
                index++; 
            }
        } 

        internal override void CacheMetadata(ActivityMetadata metadata, Activity owner, string operationName)
        {
            // force a shred for every CacheMetadata call 
            ShredParameters();
 
            int index = 0; 
            foreach (Type argumentType in this.argumentTypes)
            { 
                if (argumentType == null || argumentType == TypeHelper.VoidType)
                {
                    metadata.AddValidationError(SR.ArgumentCannotHaveNullOrVoidType(owner.DisplayName, argumentNames[index]));
                } 
                if (argumentType == MessageDescription.TypeOfUntypedMessage || MessageBuilder.IsMessageContract(argumentType))
                { 
                    metadata.AddValidationError(SR.ReceiveParametersContentDoesNotSupportMessage(owner.DisplayName, argumentNames[index])); 
                }
                index++; 
            }

            if (!metadata.HasViolations)
            { 
                foreach (KeyValuePair pair in this.Parameters)
                { 
                    RuntimeArgument newRuntimeArgument = new RuntimeArgument(pair.Key, pair.Value.ArgumentType, ArgumentDirection.Out); 
                    metadata.Bind(pair.Value, newRuntimeArgument);
                    metadata.AddArgument(newRuntimeArgument); 
                }
            }
        }
 
        internal override void ConfigureInternalReceive(InternalReceiveMessage internalReceiveMessage, out FromRequest requestFormatter)
        { 
            requestFormatter = new FromRequest(); 
            foreach (KeyValuePair parameter in this.Parameters)
            { 
                requestFormatter.Parameters.Add(OutArgument.CreateReference(parameter.Value, parameter.Key));
            }
        }
 
        internal override void ConfigureInternalReceiveReply(InternalReceiveMessage internalReceiveMessage, out FromReply responseFormatter)
        { 
            responseFormatter = new FromReply(); 
            foreach (KeyValuePair parameter in this.Parameters)
            { 
                responseFormatter.Parameters.Add(OutArgument.CreateReference(parameter.Value, parameter.Key));
            }
        }
 
        internal override void InferMessageDescription(OperationDescription operation, object owner, MessageDirection direction)
        { 
            ContractInferenceHelper.CheckForDisposableParameters(operation, this.argumentTypes); 

            string overridingAction = owner is Receive ? ((Receive)owner).Action : ((ReceiveReply)owner).Action; 

            if (direction == MessageDirection.Input)
            {
                ContractInferenceHelper.AddInputMessage(operation, overridingAction, this.argumentNames, this.argumentTypes); 
            }
            else 
            { 
                ContractInferenceHelper.AddOutputMessage(operation, overridingAction, this.ArgumentNames, this.ArgumentTypes);
            } 
        }
    }
}

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

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