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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel.Activities
{
using System.Activities;
using System.Activities.Validation;
using System.Collections;
using System.Collections.Generic;
using System.Runtime;
using System.Runtime.Collections;
using System.ServiceModel.Description;
using System.Windows.Markup;
[ContentProperty("Parameters")]
public sealed class SendParametersContent : SendContent
{
string[] argumentNames;
Type[] argumentTypes;
public SendParametersContent()
: base()
{
this.Parameters = new OrderedDictionary<string, InArgument>();
}
public SendParametersContent(IDictionary<string, InArgument> parameters)
: base()
{
if (parameters == null)
{
throw FxTrace.Exception.ArgumentNull("parameters");
}
this.Parameters = new OrderedDictionary<string, InArgument>(parameters);
}
public IDictionary<string, InArgument> 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;
}
}
internal override bool IsFault
{
get
{
if (this.ArgumentTypes.Length == 1)
{
return ContractInferenceHelper.ExceptionType.IsAssignableFrom(this.ArgumentTypes[0]);
}
else
{
return false;
}
}
}
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<string, InArgument> pair in this.Parameters)
{
this.argumentNames[index] = pair.Key;
if (pair.Value != null)
{
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.SendParametersContentDoesNotSupportMessage(owner.DisplayName, argumentNames[index]));
}
index++;
}
if (!metadata.HasViolations)
{
foreach (KeyValuePair<string, InArgument> pair in this.Parameters)
{
RuntimeArgument newRuntimeArgument = new RuntimeArgument(pair.Key, pair.Value.ArgumentType, ArgumentDirection.In);
metadata.Bind(pair.Value, newRuntimeArgument);
metadata.AddArgument(newRuntimeArgument);
}
}
}
internal override void ConfigureInternalSend(InternalSendMessage internalSendMessage, out ToRequest requestFormatter)
{
//Zero or more arguments
requestFormatter = new ToRequest();
foreach (KeyValuePair<string, InArgument> parameter in this.Parameters)
{
requestFormatter.Parameters.Add(InArgument.CreateReference(parameter.Value, parameter.Key));
}
}
internal override void ConfigureInternalSendReply(InternalSendMessage internalSendMessage, out ToReply responseFormatter)
{
responseFormatter = new ToReply();
foreach (KeyValuePair<string, InArgument> parameter in this.Parameters)
{
responseFormatter.Parameters.Add(InArgument.CreateReference(parameter.Value, parameter.Key));
}
}
internal override void InferMessageDescription(OperationDescription operation, object owner, MessageDirection direction)
{
ContractInferenceHelper.CheckForDisposableParameters(operation, this.ArgumentTypes);
string overridingAction = owner is Send ? ((Send)owner).Action : ((SendReply)owner).Action;
if (direction == MessageDirection.Input)
{
ContractInferenceHelper.AddInputMessage(operation, overridingAction, this.ArgumentNames, this.ArgumentTypes);
}
else
{
ContractInferenceHelper.AddOutputMessage(operation, overridingAction, this.ArgumentNames, this.ArgumentTypes);
}
}
internal override void ValidateContract(NativeActivityContext context, OperationDescription targetOperation, object owner, MessageDirection direction)
{
MessageDescription targetMessage;
string overridingAction;
bool isResponse;
if (direction == MessageDirection.Input)
{
Fx.Assert(targetOperation.Messages.Count >= 1, "There must be at least one MessageDescription in an OperationDescription!");
targetMessage = targetOperation.Messages[0];
Fx.Assert(owner is Send, "The parent of a SendParametersContent with in-message can only be Send!");
overridingAction = ((Send)owner).Action;
isResponse = false;
}
else
{
Fx.Assert(targetOperation.Messages.Count == 2, "There must be exactly two MessageDescription objects for a two-way operation!");
targetMessage = targetOperation.Messages[1];
Fx.Assert(owner is SendReply, "The parent of a SendParametersContent with out-message can only be SendReply!");
overridingAction = ((SendReply)owner).Action;
isResponse = true;
}
if (!this.IsFault)
{
ContractValidationHelper.ValidateAction(context, targetMessage, overridingAction, targetOperation, isResponse);
if (ContractValidationHelper.IsSendParameterContent(targetOperation))
{
ContractValidationHelper.ValidateParametersContent(context, targetMessage, (IDictionary)this.Parameters, targetOperation, isResponse);
}
else
{
Constraint.AddValidationError(context, new ValidationError(SR.MisuseOfParameterContent(targetOperation.Name, targetOperation.DeclaringContract.Name)));
}
}
else
{
Fx.Assert(this.argumentTypes != null && this.argumentTypes.Length == 1, "Exception should be the only parameter in SendFault!");
Type argumentType = this.argumentTypes[0];
if (argumentType.IsGenericType && argumentType.GetGenericTypeDefinition() == ContractInferenceHelper.FaultExceptionType)
{
Type faultType = argumentType.GetGenericArguments()[0];
ContractValidationHelper.ValidateFault(context, targetOperation, overridingAction, faultType);
}
}
}
}
}
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