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//----------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------
namespace System.ServiceModel.Activities
{
using System;
using System.Runtime;
using System.Runtime.Serialization;
using System.ServiceModel.Description;
using System.Xml;
using System.Xml.Serialization;
static class MessageBuilder
{
static Type messageContractAttributeType;
static XsdDataContractExporter xsdDataContractExporter;
static XmlReflectionImporter xmlReflectionImporter;
public static Type MessageContractAttributeType
{
get
{
if (messageContractAttributeType == null)
{
messageContractAttributeType = typeof(MessageContractAttribute);
}
return messageContractAttributeType;
}
}
public static XsdDataContractExporter XsdDataContractExporter
{
get
{
if (xsdDataContractExporter == null)
{
xsdDataContractExporter = new XsdDataContractExporter();
}
return xsdDataContractExporter;
}
}
public static XmlReflectionImporter XmlReflectionImporter
{
get
{
if (xmlReflectionImporter == null)
{
xmlReflectionImporter = new XmlReflectionImporter();
}
return xmlReflectionImporter;
}
}
public static MessageDescription CreateMessageDescription(OperationDescription operation, bool isResponse,
MessageDirection direction, string overridingAction, Type type, SerializerOption serializerOption)
{
MessageDescription result;
if (type != null && IsMessageContract(type))
{
result = CreateFromMessageContract(operation, isResponse, direction, overridingAction, type);
}
else
{
// For Send/Receive, we do not wrap message
result = CreateEmptyMessageDescription(operation, isResponse, direction, overridingAction);
AddMessagePartDescription(operation, isResponse, result, type, serializerOption);
}
return result;
}
public static MessageDescription CreateMessageDescription(OperationDescription operation, bool isResponse,
MessageDirection direction, string overridingAction, string[] argumentNames, Type[] argumentTypes)
{
MessageDescription result;
if (argumentTypes.Length == 1 && argumentTypes[0] == MessageDescription.TypeOfUntypedMessage)
{
result = CreateEmptyMessageDescription(operation, isResponse, direction, overridingAction);
AddMessagePartDescription(operation, isResponse, result, argumentNames, argumentTypes);
}
else if (argumentTypes.Length == 1 && IsMessageContract(argumentTypes[0]))
{
result = CreateFromMessageContract(operation, isResponse, direction, overridingAction, argumentTypes[0]);
}
else
{
// For SendParameters/ReceiveParameters, we wrap for non-Message cases
result = CreateEmptyMessageDescription(operation, isResponse, direction, overridingAction);
AddMessagePartDescription(operation, isResponse, result, argumentNames, argumentTypes);
SetWrapperName(operation, isResponse, result);
}
return result;
}
public static bool IsMessageContract(Type type)
{
if (type == null)
{
return false;
}
else
{
return type.IsDefined(MessageContractAttributeType, false);
}
}
public static MessageDescription CreateFromMessageContract(OperationDescription operation, bool isResponse,
MessageDirection direction, string overridingAction, Type messageContractType)
{
string action = overridingAction ?? NamingHelper.GetMessageAction(operation, isResponse);
//
TypeLoader typeLoader = new TypeLoader();
return typeLoader.CreateTypedMessageDescription(messageContractType, null, null,
operation.DeclaringContract.Namespace, action, direction);
}
public static MessageDescription CreateEmptyMessageDescription(OperationDescription operation, bool isResponse,
MessageDirection direction, string overridingAction)
{
string action = overridingAction ?? NamingHelper.GetMessageAction(operation, isResponse);
MessageDescription result = new MessageDescription(action, direction);
// Clear message wrapper
result.Body.WrapperName = null;
result.Body.WrapperNamespace = null;
return result;
}
public static void AddMessagePartDescription(OperationDescription operation, bool isResponse,
MessageDescription message, Type type, SerializerOption serializerOption)
{
if (type != null)
{
string partName;
string partNamespace;
if (serializerOption == SerializerOption.DataContractSerializer)
{
XmlQualifiedName xmlQualifiedName = XsdDataContractExporter.GetRootElementName(type);
if (xmlQualifiedName == null)
{
xmlQualifiedName = XsdDataContractExporter.GetSchemaTypeName(type);
}
if (!xmlQualifiedName.IsEmpty)
{
partName = xmlQualifiedName.Name;
partNamespace = xmlQualifiedName.Namespace;
}
else
{
// For anonymous type, we assign CLR type name and contract namespace to MessagePartDescription
partName = type.Name;
partNamespace = operation.DeclaringContract.Namespace;
}
}
else
{
XmlTypeMapping xmlTypeMapping = XmlReflectionImporter.ImportTypeMapping(type);
partName = xmlTypeMapping.ElementName;
partNamespace = xmlTypeMapping.Namespace;
}
MessagePartDescription messagePart = new MessagePartDescription(NamingHelper.XmlName(partName), partNamespace)
{
Index = 0,
Type = type
// We do not infer MessagePartDescription.ProtectionLevel
};
message.Body.Parts.Add(messagePart);
}
if (isResponse)
{
SetReturnValue(message, operation);
}
}
public static void AddMessagePartDescription(OperationDescription operation, bool isResponse,
MessageDescription message, string[] argumentNames, Type[] argumentTypes)
{
Fx.Assert(argumentNames != null && argumentTypes != null, "Argument cannot be null!");
Fx.Assert(argumentNames.Length == argumentTypes.Length, "Name and Type do not match!");
// Infer MessagePartDescription.Namespace from contract namespace
string partNamespace = operation.DeclaringContract.Namespace;
for (int index = 0; index < argumentNames.Length; index++)
{
// Infer MessagePartDescription.Name from parameter name
string partName = argumentNames[index];
MessagePartDescription messagePart = new MessagePartDescription(NamingHelper.XmlName(partName), partNamespace)
{
Index = index,
Type = argumentTypes[index]
// We do not infer MessagePartDescription.ProtectionLevel
};
message.Body.Parts.Add(messagePart);
}
if (isResponse)
{
SetReturnValue(message, operation);
}
}
static void SetReturnValue(MessageDescription message, OperationDescription operation)
{
if (message.IsUntypedMessage)
{
message.Body.ReturnValue = message.Body.Parts[0];
message.Body.Parts.RemoveAt(0);
}
else if (!message.IsTypedMessage)
{
message.Body.ReturnValue = new MessagePartDescription(operation.Name + TypeLoader.ReturnSuffix,
operation.DeclaringContract.Namespace);
message.Body.ReturnValue.Type = TypeHelper.VoidType;
}
}
public static void SetWrapperName(OperationDescription operation, bool isResponse, MessageDescription message)
{
message.Body.WrapperName = operation.Name + (isResponse ? TypeLoader.ResponseSuffix : string.Empty);
message.Body.WrapperNamespace = operation.DeclaringContract.Namespace;
}
public static void ClearWrapperNames(OperationDescription operation)
{
// Reproduce logic from TypeLoader.CreateOperationDescription
if (!operation.IsOneWay)
{
MessageDescription requestMessage = operation.Messages[0];
MessageDescription responseMessage = operation.Messages[1];
if (responseMessage.IsVoid &&
(requestMessage.IsUntypedMessage || requestMessage.IsTypedMessage))
{
responseMessage.Body.WrapperName = null;
responseMessage.Body.WrapperNamespace = null;
}
else if (requestMessage.IsVoid &&
(responseMessage.IsUntypedMessage || responseMessage.IsTypedMessage))
{
requestMessage.Body.WrapperName = null;
requestMessage.Body.WrapperNamespace = null;
}
}
}
public static FaultDescription CreateFaultDescription(OperationDescription operation, Type faultType, string overridingAction)
{
string name = NamingHelper.TypeName(faultType) + TypeLoader.FaultSuffix;
string action = overridingAction ?? NamingHelper.GetMessageAction(operation, false) + name;
FaultDescription result = new FaultDescription(action)
{
Namespace = operation.DeclaringContract.Namespace,
DetailType = faultType
};
result.SetNameOnly(new XmlName(name));
return result;
}
}
}
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