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/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.ServiceModel.Activities / System / ServiceModel / Activities / SendMessageContent.cs / 1305376 / SendMessageContent.cs
//------------------------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- namespace System.ServiceModel.Activities { using System.Activities; using System.ComponentModel; using System.Runtime; using System.ServiceModel.Channels; using System.ServiceModel.Description; using System.Windows.Markup; [ContentProperty("Message")] public sealed class SendMessageContent : SendContent { public SendMessageContent() : base() { } public SendMessageContent(InArgument message) : this() { this.Message = message; } public SendMessageContent(InArgument message, Type declaredMessageType) : this(message) { this.DeclaredMessageType = declaredMessageType; } // The value that is sent as the body of the message. // The type is derived from Message.Expression.ResultType. If the optional // DeclaredMessageType property is also specified, it is validated against // Message.Expression.ResultType. [DefaultValue(null)] public InArgument Message { get; set; } // Allows the type of the variable specified for Message to be a derived type from the type // on the message contract. This type specifies what the type is one the message contract. // If DeclaredMessageType is not specified, the type from the Message InArgument is used. // The DeclaredMessageType must either be the same as the type of the InArgument Message, // or it must be a base type of Message. [DefaultValue(null)] public Type DeclaredMessageType { get; set; } internal Type InternalDeclaredMessageType { get { if (this.DeclaredMessageType == null && this.Message != null) { return this.Message.ArgumentType; } else { return this.DeclaredMessageType; } } } internal override bool IsFault { get { if (this.InternalDeclaredMessageType != null) { return ContractInferenceHelper.ExceptionType.IsAssignableFrom(this.InternalDeclaredMessageType); } else { return false; } } } [EditorBrowsable(EditorBrowsableState.Never)] public bool ShouldSerializeDeclaredMessageType() { // don't serialize null if (this.DeclaredMessageType == null) { return false; } // if the expression type of Message matches the declared message type, no need to serialize duplicative information if (this.Message != null && this.DeclaredMessageType == this.Message.ArgumentType) { return false; } return true; } internal override void CacheMetadata(ActivityMetadata metadata, Activity owner, string operationName) { MessagingActivityHelper.FixMessageArgument(this.Message, ArgumentDirection.In, metadata); if (this.DeclaredMessageType != null) { if (this.Message == null && this.DeclaredMessageType != TypeHelper.VoidType) { string errorOperationName = ContractValidationHelper.GetErrorMessageOperationName(operationName); metadata.AddValidationError(SR.ValueCannotBeNull(owner.DisplayName, errorOperationName)); } else if (this.Message != null && !this.DeclaredMessageType.IsAssignableFrom(this.Message.ArgumentType)) { string errorOperationName = ContractValidationHelper.GetErrorMessageOperationName(operationName); metadata.AddValidationError(SR.ValueArgumentTypeNotDerivedFromValueType(owner.DisplayName, errorOperationName)); } } } internal override void ConfigureInternalSend(InternalSendMessage internalSendMessage, out ToRequest requestFormatter) { if (this.InternalDeclaredMessageType == MessageDescription.TypeOfUntypedMessage) { // Value is a Message, do not use the formatter but directly pass it to InternalSendMessage internalSendMessage.Message = new InArgument(context => ((InArgument )this.Message).Get(context)); requestFormatter = null; } else { requestFormatter = new ToRequest(); if (this.Message != null) { requestFormatter.Parameters.Add(InArgument.CreateReference(this.Message, "Message")); } } } internal override void ConfigureInternalSendReply(InternalSendMessage internalSendMessage, out ToReply responseFormatter) { if (this.InternalDeclaredMessageType == MessageDescription.TypeOfUntypedMessage) { internalSendMessage.Message = new InArgument (context => ((InArgument )this.Message).Get(context)); responseFormatter = null; } else { responseFormatter = new ToReply(); // WCF rule dictates that MessageContract must be bound to ReturnValue, not Parameters if (MessageBuilder.IsMessageContract(this.InternalDeclaredMessageType)) { responseFormatter.Result = InArgument.CreateReference(this.Message, "Message"); } else if (this.Message != null) { responseFormatter.Parameters.Add(InArgument.CreateReference(this.Message, "Message")); } } } internal override void InferMessageDescription(OperationDescription operation, object owner, MessageDirection direction) { ContractInferenceHelper.CheckForDisposableParameters(operation, this.InternalDeclaredMessageType); string overridingAction = null; SerializerOption serializerOption = SerializerOption.DataContractSerializer; Send send = owner as Send; if (send != null) { overridingAction = send.Action; serializerOption = send.SerializerOption; } else { SendReply sendReply = owner as SendReply; Fx.Assert(sendReply != null, "The owner of SendMessageContent can only be Send or SendReply!"); overridingAction = sendReply.Action; serializerOption = sendReply.Request.SerializerOption; } if (direction == MessageDirection.Input) { ContractInferenceHelper.AddInputMessage(operation, overridingAction, this.InternalDeclaredMessageType, serializerOption); } else { ContractInferenceHelper.AddOutputMessage(operation, overridingAction, this.InternalDeclaredMessageType, serializerOption); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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