C# ServiceHostBase类代码示例

        public virtual void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
            string workflowDisplayName = "";
            System.ServiceModel.Activities.WorkflowServiceHost workflowServiceHost = serviceHostBase as System.ServiceModel.Activities.WorkflowServiceHost;
            if (null != workflowServiceHost)
            {
                workflowDisplayName = ((System.ServiceModel.Activities.WorkflowServiceHost)serviceHostBase).Activity.DisplayName;
            }

            System.ServiceModel.Activities.WorkflowServiceHost host = serviceHostBase as System.ServiceModel.Activities.WorkflowServiceHost;
            if (this.TrackingComponentElements != null && host != null)
            {
                foreach (TrackingComponentElement trackingComponentElement in this.TrackingComponentElements)
                {
                    TrackingParticipant trackingComponent = this.CreateTrackingComponent(trackingComponentElement);
                    if (trackingComponent != null)
                    {
                        if (!string.IsNullOrEmpty(trackingComponentElement.ProfileName))
                        {
                            trackingComponent.TrackingProfile = this.GetProfile(trackingComponentElement.ProfileName, workflowDisplayName);
                        }

                        host.WorkflowExtensions.Add(trackingComponent);
                    }
                    else
                    {
                        throw new Exception(string.Format("Tracking component is not a known type: {0}", trackingComponentElement.Name));
                    }
                }
            }
        }

      void IServiceBehavior.Validate(ServiceDescription description,ServiceHostBase host) 
      {
         DurableServiceAttribute durable = new DurableServiceAttribute();
         durable.SaveStateInOperationTransaction = true;
         description.Behaviors.Add(durable);

         PersistenceProviderFactory factory;
         if(AutoCompleteInstance)
         {
            factory = new TransactionalInstanceProviderFactory();
         }
         else
         {
            factory = new TransactionalMemoryProviderFactory();
         }

         PersistenceProviderBehavior persistenceBehavior = new PersistenceProviderBehavior(factory);
         description.Behaviors.Add(persistenceBehavior);

         if(TransactionRequiredAllOperations)
         {
            foreach(ServiceEndpoint endpoint in description.Endpoints)
            {
               foreach(OperationDescription operation in endpoint.Contract.Operations)
               {
                  operation.Behaviors.Find<OperationBehaviorAttribute>().TransactionScopeRequired = true;
               }
            }
         }
      }

		public void AddBindingParameters(
			ServiceDescription serviceDescription,
			ServiceHostBase serviceHostBase,
			Collection<ServiceEndpoint> endpoints,
			BindingParameterCollection bindingParameters)
		{
		}

        void IServiceBehavior.ApplyDispatchBehavior(ServiceDescription description, ServiceHostBase serviceHostBase)
        {
            IErrorHandler errorHandler;

            try
            {
                errorHandler = (IErrorHandler)Activator.CreateInstance(m_errorHandlerType, m_tracer);
            }
            catch (MissingMethodException e)
            {
                throw new ArgumentException(string.Format(
                    "The errorHandlerType {0} must have a public constructor with single argument of type {1}",
                    m_errorHandlerType.AssemblyQualifiedName, typeof(ITracer).AssemblyQualifiedName)
                    , e);
            }
            catch (InvalidCastException e)
            {
                throw new ArgumentException(string.Format(
                    "The errorHandlerType {0} must implement System.ServiceModel.Dispatcher.IErrorHandler.",
                    m_errorHandlerType.AssemblyQualifiedName), e);
            }

            foreach (var channelDispatcherBase in serviceHostBase.ChannelDispatchers)
            {
                var channelDispatcher = channelDispatcherBase as ChannelDispatcher;
                if (channelDispatcher != null)
                {
                    channelDispatcher.ErrorHandlers.Add(errorHandler);
                }
            }
        }

 /// <summary>
 /// Provides the ability to pass custom data to binding elements to support the contract implementation.
 /// </summary>
 /// <param name="serviceDescription">
 /// The service description of the service.
 /// </param>
 /// <param name="serviceHostBase">
 /// The host of the service.
 /// </param>
 /// <param name="endpoints">
 /// The service endpoints.
 /// </param>
 /// <param name="bindingParameters">
 /// Custom objects to which binding elements have access.
 /// </param>
 public void AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, Collection<ServiceEndpoint> endpoints, BindingParameterCollection bindingParameters)
 {
     foreach (ChannelDispatcher chanDisp in serviceHostBase.ChannelDispatchers)
     {
         chanDisp.ErrorHandlers.Add(new ErrorHandler(this._messageFaultBuilder));
     }
 }

        // The validation process will scan each endpoint to see if it's bindings have binding elements
        // that are secure. These elements consist of: Transport, Asymmetric, Symmetric,
        // HttpsTransport, WindowsStream and SSLStream.
        public void Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
            // Loop through each endpoint individually gathering their binding elements.
            foreach (ServiceEndpoint endpoint in serviceDescription.Endpoints)
            {
                secureElementFound = false;

                // Retrieve the endpoint's binding element collection.
                BindingElementCollection bindingElements = endpoint.Binding.CreateBindingElements();

                // Look to see if the binding elements collection contains any secure binding
                // elements. Transport, Asymmetric and Symmetric binding elements are all
                // derived from SecurityBindingElement.
                if ((bindingElements.Find<SecurityBindingElement>() != null) ||
                    (bindingElements.Find<HttpsTransportBindingElement>() != null) ||
                    (bindingElements.Find<WindowsStreamSecurityBindingElement>() != null) ||
                    (bindingElements.Find<SslStreamSecurityBindingElement>() != null))
                {
                    secureElementFound = true;
                }

                // Send a message to the system event viewer whhen an endpoint is deemed insecure.
                if (!secureElementFound)
                    throw new Exception(System.DateTime.Now.ToString() + ": The endpoint \"" + endpoint.Name + "\" has no secure bindings.");
            }
        }

        internal DefaultPerformanceCounters(ServiceHostBase serviceHost)
        {
            this.instanceName = DefaultPerformanceCounters.CreateFriendlyInstanceName(serviceHost);
            this.Counters = new PerformanceCounter[(int)PerfCounters.TotalCounters];
            for (int i = 0; i < (int)PerfCounters.TotalCounters; i++)
            {
                try
                {
                    PerformanceCounter counter = PerformanceCounters.GetDefaultPerformanceCounter(this.perfCounterNames[i], this.instanceName);
                    if (counter != null)
                    {
                        this.Counters[i] = counter;
                    }
                    else
                    {
                        break;
                    }
                }
#pragma warning suppress 56500 // covered by FxCOP
                catch (Exception e)
                {
                    if (Fx.IsFatal(e))
                    {
                        throw;
                    }
                    if (DiagnosticUtility.ShouldTraceError)
                    {
                        TraceUtility.TraceEvent(TraceEventType.Error, TraceCode.PerformanceCountersFailedForService,
                            SR.GetString(SR.TraceCodePerformanceCountersFailedForService), null, e);
                    }
                    break;
                }
            }
        }

 /// <summary>
 ///   Provides the ability to change run-time property values or insert custom extension objects such as exception handlers, message or parameter interceptors, security extensions, and other custom extension objects.
 /// </summary>
 /// <param name = "serviceDescription">The service description.</param>
 /// <param name = "serviceHostBase">The host that is currently being built.</param>
 public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
 {
     foreach (ChannelDispatcher chanDisp in serviceHostBase.ChannelDispatchers)
     {
         chanDisp.ErrorHandlers.Add(new LastChanceErrorHandler());
     }
 }

 internal ListenerHandler(IListenerBinder listenerBinder, System.ServiceModel.Dispatcher.ChannelDispatcher channelDispatcher, ServiceHostBase host, ServiceThrottle throttle, IDefaultCommunicationTimeouts timeouts)
 {
     this.listenerBinder = listenerBinder;
     if (this.listenerBinder == null)
     {
         throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("listenerBinder");
     }
     this.channelDispatcher = channelDispatcher;
     if (this.channelDispatcher == null)
     {
         throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("channelDispatcher");
     }
     this.host = host;
     if (this.host == null)
     {
         throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("host");
     }
     this.throttle = throttle;
     if (this.throttle == null)
     {
         throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("throttle");
     }
     this.timeouts = timeouts;
     this.endpoints = channelDispatcher.EndpointDispatcherTable;
     this.acceptor = new ErrorHandlingAcceptor(listenerBinder, channelDispatcher);
 }

		private void RegisterErrorHandlerBehavior(ErrorHandlerBehavior errorHandlerBehavior, ServiceHostBase host)
		{
			if (host.Description.Behaviors.Find<ErrorHandlerBehavior>() == null)
			{
				host.Description.Behaviors.Add(errorHandlerBehavior);
			}
		}

 internal static ServicePerformanceCountersBase CreateServiceCounters(ServiceHostBase serviceHost)
 {
     if (OSEnvironmentHelper.IsVistaOrGreater)
     {
         try
         {
             ServicePerformanceCountersV2 sv = new ServicePerformanceCountersV2(serviceHost);
             EndpointPerformanceCountersV2.EnsureCounterSet();
             OperationPerformanceCountersV2.EnsureCounterSet();
             return sv;
         }
         catch (Exception exception)
         {
             if (Fx.IsFatal(exception))
             {
                 throw;
             }
             PerformanceCounters.Scope = PerformanceCounterScope.Off;
             if (DiagnosticUtility.ShouldTraceError)
             {
                 TraceUtility.TraceEvent(TraceEventType.Error, 0x8003b, System.ServiceModel.SR.GetString("TraceCodePerformanceCountersFailedForService"), null, exception);
             }
             return null;
         }
     }
     return new ServicePerformanceCounters(serviceHost);
 }

		public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
		{
			foreach (ChannelDispatcher channelDispatcher in serviceHostBase.ChannelDispatchers)
			{
				channelDispatcher.ErrorHandlers.Add(errorHandler);
			}
		}

 //- @ApplyDispatchBehavior -//
 public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
 {
     foreach (ChannelDispatcher dispatcher in serviceHostBase.ChannelDispatchers)
     {
         dispatcher.ErrorHandlers.Add(new ErrorHandler(serviceDescription.ServiceType));
     }
 }

        public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
            if (serviceDescription == null)
            {
                throw new ArgumentNullException("serviceDescription");
            }

            if (serviceHostBase == null)
            {
                throw new ArgumentNullException("serviceHostBase");
            }

            for (var dispatcherIndex = 0;
                 dispatcherIndex < serviceHostBase.ChannelDispatchers.Count;
                 dispatcherIndex++)
            {
                var dispatcher = serviceHostBase.ChannelDispatchers[dispatcherIndex];
                var channelDispatcher = (ChannelDispatcher)dispatcher;
                for (var endpointIndex = 0; endpointIndex < channelDispatcher.Endpoints.Count; endpointIndex++)
                {
                    var endpointDispatcher = channelDispatcher.Endpoints[endpointIndex];
                    endpointDispatcher.DispatchRuntime.InstanceProvider = 
                        new UnityInstanceProvider(this.Container, serviceDescription.ServiceType);
                }
            } 
        }

        void IServiceBehavior.ApplyDispatchBehavior(
            ServiceDescription serviceDescription,
            ServiceHostBase serviceHostBase)
        {
            IErrorHandler errorHandler;

            try
            {
                errorHandler = (IErrorHandler)Activator.CreateInstance(errorHandlerType);
            }
            catch (MissingMethodException e)
            {
                throw new ArgumentException(
                    "The errorHandlerType specified in the ErrorBehaviorAttribute constructor must have a public empty constructor.",
                    e);
            }
            catch (InvalidCastException e)
            {
                throw new ArgumentException(
                    "The errorHandlerType specified in the ErrorBehaviorAttribute constructor must implement System.ServiceModel.Dispatcher.IErrorHandler.",
                    e);
            }

            foreach (ChannelDispatcherBase channelDispatcherBase in serviceHostBase.ChannelDispatchers)
            {
                var channelDispatcher = channelDispatcherBase as ChannelDispatcher;
                channelDispatcher.ErrorHandlers.Add(errorHandler);
            }
        }