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//----------------------------------------------------------------
// 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<OutArgument> parameters;
public InArgument<Message> Message
{
get;
set;
}
public IClientMessageFormatter Formatter
{
get;
set;
}
public IClientFaultFormatter FaultFormatter
{
get;
set;
}
public OutArgument Result
{
get;
set;
}
public Collection<OutArgument> Parameters
{
get
{
if (this.parameters == null)
{
this.parameters = new Collection<OutArgument>();
}
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;
}
}
}
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