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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel.Dispatcher
{
using System;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.Collections.Generic;
using System.Collections;
using System.Reflection;
class OperationSelectorBehavior : IContractBehavior
{
void IContractBehavior.Validate(ContractDescription description, ServiceEndpoint endpoint)
{
}
void IContractBehavior.AddBindingParameters(ContractDescription description, ServiceEndpoint endpoint, BindingParameterCollection parameters)
{
}
void IContractBehavior.ApplyDispatchBehavior(ContractDescription description, ServiceEndpoint endpoint, DispatchRuntime dispatch)
{
if (dispatch.ClientRuntime != null)
dispatch.ClientRuntime.OperationSelector = new MethodInfoOperationSelector(description, MessageDirection.Output);
}
void IContractBehavior.ApplyClientBehavior(ContractDescription description, ServiceEndpoint endpoint, ClientRuntime proxy)
{
proxy.OperationSelector = new MethodInfoOperationSelector(description, MessageDirection.Input);
}
internal class MethodInfoOperationSelector : IClientOperationSelector
{
Dictionary<object, string> operationMap;
internal MethodInfoOperationSelector(ContractDescription description, MessageDirection directionThatRequiresClientOpSelection)
{
operationMap = new Dictionary<object, string>();
for (int i = 0; i < description.Operations.Count; i++)
{
OperationDescription operation = description.Operations[i];
if (operation.Messages[0].Direction == directionThatRequiresClientOpSelection)
{
if (operation.SyncMethod != null)
{
if (!operationMap.ContainsKey(operation.SyncMethod.MethodHandle))
operationMap.Add(operation.SyncMethod.MethodHandle, operation.Name);
}
if (operation.BeginMethod != null)
{
if (!operationMap.ContainsKey(operation.BeginMethod.MethodHandle))
{
operationMap.Add(operation.BeginMethod.MethodHandle, operation.Name);
operationMap.Add(operation.EndMethod.MethodHandle, operation.Name);
}
}
if (operation.TaskMethod != null)
{
if (!operationMap.ContainsKey(operation.TaskMethod.MethodHandle))
{
operationMap.Add(operation.TaskMethod.MethodHandle, operation.Name);
}
}
}
}
}
public bool AreParametersRequiredForSelection
{
get { return false; }
}
public string SelectOperation(MethodBase method, object[] parameters)
{
if (this.operationMap.ContainsKey(method.MethodHandle))
return operationMap[method.MethodHandle];
else
return null;
}
}
}
}
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