UdpContractFilterBehavior.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.ServiceModel.Discovery / System / ServiceModel / Discovery / UdpContractFilterBehavior.cs / 1305376 / UdpContractFilterBehavior.cs

                            //---------------------------------------------------------------- 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//---------------------------------------------------------------
namespace System.ServiceModel.Discovery
{ 
    using System.Runtime;
    using System.ServiceModel.Description; 
    using System.ServiceModel.Dispatcher; 
    using System.ServiceModel.Channels;
 
    // This behavior sets the contract filter and unhandled operation invoker in the dispatch
    // runtime to avoid contract filter mismatch exceptions raised by runtime during normal operation.
    // Since the different discovery messages from different versions are sent over the same multicast
    // address and port, it is normal for an endpoint to receive the messages that are not matching 
    // its contract. This behavior is only added to UdpDiscoveryEndpoint and UdpAnnouncementEndpoint.
    class UdpContractFilterBehavior : IEndpointBehavior 
    { 
        public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
        { 
        }

        public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
        { 
        }
 
        public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher) 
        {
            if (endpointDispatcher == null) 
            {
                throw FxTrace.Exception.ArgumentNull("endpointDispatcher");
            }
 
            endpointDispatcher.ContractFilter = new MatchAllMessageFilter();
            endpointDispatcher.DispatchRuntime.UnhandledDispatchOperation.Invoker = new UnhandledActionOperationInvoker(); 
        } 

        public void Validate(ServiceEndpoint endpoint) 
        {
        }

        class UnhandledActionOperationInvoker : IOperationInvoker 
        {
            public bool IsSynchronous 
            { 
                get
                { 
                    return true;
                }
            }
 
            public object[] AllocateInputs()
            { 
                return EmptyArray.Allocate(1); 
            }
 
            public object Invoke(object instance, object[] inputs, out object[] outputs)
            {
                outputs = EmptyArray.Allocate(0);
                return null; 
            }
 
            public IAsyncResult InvokeBegin(object instance, object[] inputs, AsyncCallback callback, object state) 
            {
                throw FxTrace.Exception.AsError(new NotImplementedException()); 
            }

            public object InvokeEnd(object instance, out object[] outputs, IAsyncResult result)
            { 
                throw FxTrace.Exception.AsError(new NotImplementedException());
            } 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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