IInstanceContextProvider.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Dispatcher / IInstanceContextProvider.cs / 1 / IInstanceContextProvider.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.ServiceModel.Dispatcher 
{
    using System; 
    using System.ServiceModel; 
    using System.ServiceModel.Channels;
 
    public interface IInstanceContextProvider
    {
        InstanceContext GetExistingInstanceContext(Message message, IContextChannel channel);
        void InitializeInstanceContext(InstanceContext instanceContext, Message message, IContextChannel channel); 
        bool IsIdle(InstanceContext instanceContext);
        void NotifyIdle(InstanceContextIdleCallback callback, InstanceContext instanceContext); 
    } 

    internal abstract class InstanceContextProviderBase : IInstanceContextProvider 
    {
        DispatchRuntime dispatchRuntime;

        public DispatchRuntime DispatchRuntime 
        {
            get 
            { 
                return this.dispatchRuntime;
            } 
        }

        internal InstanceContextProviderBase(DispatchRuntime dispatchRuntime)
        { 
            this.dispatchRuntime = dispatchRuntime;
        } 
 
        internal static bool IsProviderSingleton(IInstanceContextProvider provider)
        { 
            return (provider is SingletonInstanceContextProvider);
        }

        internal static bool IsProviderSessionful(IInstanceContextProvider provider) 
        {
            return (provider is PerSessionInstanceContextProvider); 
        } 

        internal static IInstanceContextProvider GetProviderForMode(InstanceContextMode instanceMode, DispatchRuntime runtime) 
        {
            switch (instanceMode)
            {
                case InstanceContextMode.PerCall: 
                    return new PerCallInstanceContextProvider(runtime);
                case InstanceContextMode.PerSession: 
                    return new PerSessionInstanceContextProvider(runtime); 
                case InstanceContextMode.Single:
                    return new SingletonInstanceContextProvider(runtime); 
                default:
                    DiagnosticUtility.FailFast("InstanceContextProviderBase.GetProviderForMode: default");
                    return null;
            } 
        }
 
        internal static bool IsProviderPerCall(IInstanceContextProvider provider) 
        {
            return (provider is PerCallInstanceContextProvider); 
        }

        internal ServiceChannel GetServiceChannelFromProxy(IContextChannel channel)
        { 
            ServiceChannel serviceChannel = channel as ServiceChannel;
            if (serviceChannel == null) 
            { 
                serviceChannel = ServiceChannelFactory.GetServiceChannel(channel);
            } 
            return serviceChannel;
        }

        #region IInstanceContextProvider Members 

        public virtual InstanceContext GetExistingInstanceContext(Message message, IContextChannel channel) 
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        } 

        public virtual void InitializeInstanceContext(InstanceContext instanceContext, Message message, IContextChannel channel)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException()); 
        }
 
        public virtual bool IsIdle(InstanceContext instanceContext) 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException()); 
        }

        public virtual void NotifyIdle(InstanceContextIdleCallback callback, InstanceContext instanceContext)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        } 
 
        #endregion
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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