BaseChannelSinkWithProperties Klas

Definitie

public ref class BaseChannelSinkWithProperties abstract : System::Runtime::Remoting::Channels::BaseChannelObjectWithProperties

public abstract class BaseChannelSinkWithProperties : System.Runtime.Remoting.Channels.BaseChannelObjectWithProperties

[System.Runtime.InteropServices.ComVisible(true)]
public abstract class BaseChannelSinkWithProperties : System.Runtime.Remoting.Channels.BaseChannelObjectWithProperties

[System.Runtime.InteropServices.ComVisible(true)]
[System.Security.SecurityCritical]
public abstract class BaseChannelSinkWithProperties : System.Runtime.Remoting.Channels.BaseChannelObjectWithProperties

type BaseChannelSinkWithProperties = class
    inherit BaseChannelObjectWithProperties

[<System.Runtime.InteropServices.ComVisible(true)>]
type BaseChannelSinkWithProperties = class
    inherit BaseChannelObjectWithProperties

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Security.SecurityCritical>]
type BaseChannelSinkWithProperties = class
    inherit BaseChannelObjectWithProperties

Public MustInherit Class BaseChannelSinkWithProperties
Inherits BaseChannelObjectWithProperties

Overname

Object

BaseChannelObjectWithProperties

BaseChannelSinkWithProperties

Kenmerken

ComVisibleAttribute SecurityCriticalAttribute

Voorbeelden

[SecurityPermission(SecurityAction::Demand, Flags = SecurityPermissionFlag::Infrastructure)]
private ref class MyClientFormatterChannelSink: public BaseChannelSinkWithProperties, public IClientChannelSink, public IMessageSink
{
private:
   IClientChannelSink^ nextClientSink;
   IMessageSink^ nextMessageSink;

public:
   MyClientFormatterChannelSink()
      : nextClientSink( nullptr ), nextMessageSink( nullptr )
   {}

   MyClientFormatterChannelSink( IClientChannelSink^ nextSink, IMessageSink^ nextMsgSink )
      : BaseChannelSinkWithProperties()
   {
      nextClientSink = nextSink;
      nextMessageSink = nextMsgSink;
   }

    virtual void ProcessMessage( IMessage^ message, ITransportHeaders^ requestHeaders, Stream^ requestStream, [Out]ITransportHeaders^% responseHeaders, [Out]Stream^% responseStream )
    {
      nextClientSink->ProcessMessage( message, requestHeaders, requestStream, responseHeaders, responseStream );
    }



   virtual void AsyncProcessRequest( IClientChannelSinkStack^ sinkStack, IMessage^ msg, ITransportHeaders^ headers, Stream^ myStream )
   {
      sinkStack->Push( this, nullptr );
      nextClientSink->AsyncProcessRequest( sinkStack, msg, headers, myStream );
   }

   virtual void AsyncProcessResponse( IClientResponseChannelSinkStack^ sinkStack, Object^ /*state*/, ITransportHeaders^ headers, Stream^ myStream )
   {
      sinkStack->AsyncProcessResponse( headers, myStream );
   }

   virtual Stream^ GetRequestStream( IMessage^ /*msg*/, ITransportHeaders^ /*headers*/ )
   {
      return nullptr;
   }


   property IClientChannelSink^ NextChannelSink 
   {
      virtual IClientChannelSink^ get()
      {
         return nextClientSink;
      }

   }

   property IMessageSink^ NextSink 
   {
      virtual IMessageSink^ get()
      {
         return nextMessageSink;
      }

   }

   virtual IMessageCtrl^ AsyncProcessMessage( IMessage^ /*msg*/, IMessageSink^ /*replySink*/ )
   {
      return nullptr;
   }

   virtual IMessage^ SyncProcessMessage( IMessage^ msg )
   {
      return nextMessageSink->SyncProcessMessage( msg );
   }


   property Object^ Item [Object^]
   {
      virtual Object^ get( Object^ key ) override
      {
          if ( key == MyKey::typeid )
                  return this;

         return nullptr;
      }

      virtual void set( Object^ /*value*/, Object^ /*key*/ ) override
      {
         throw gcnew NotSupportedException;
      }

   }

   property ICollection^ Keys 
   {
      virtual ICollection^ get() override
      {
         ArrayList^ myKeys = gcnew ArrayList( 1 );
         myKeys->Add( MyKey::typeid );
         return myKeys;
      }

   }

};

internal class MyClientFormatterChannelSink :
         BaseChannelSinkWithProperties, IClientChannelSink, IMessageSink
{
   private IClientChannelSink nextClientSink=null;
   private IMessageSink nextMessageSink = null;

   public MyClientFormatterChannelSink(IClientChannelSink nextSink,
                                       IMessageSink nextMsgSink) : base()
   {
      nextClientSink = nextSink;
      nextMessageSink = nextMsgSink;
   }

   public void ProcessMessage(IMessage msg,
         ITransportHeaders requestHeaders, Stream requestStream,
         out ITransportHeaders responseHeaders, out Stream responseStream)
   {
      nextClientSink.ProcessMessage(msg, requestHeaders, requestStream,
               out responseHeaders, out responseStream);
   }

   public void AsyncProcessRequest(IClientChannelSinkStack sinkStack,
                  IMessage msg, ITransportHeaders headers, Stream myStream)
   {
      sinkStack.Push(this, null);
      nextClientSink.AsyncProcessRequest(sinkStack,msg,headers,myStream);
   }

   public void AsyncProcessResponse(IClientResponseChannelSinkStack sinkStack,
         Object state, ITransportHeaders headers, Stream myStream)
   {
      sinkStack.AsyncProcessResponse(headers, myStream);
   }

   public Stream GetRequestStream(IMessage msg,ITransportHeaders headers)
   {
      return null;
   }

   public IClientChannelSink NextChannelSink
   {
      get
      {
         return nextClientSink;
      }
   }

   public IMessageSink NextSink
   {
      get
      {
         return nextMessageSink;
      }
   }

   public IMessageCtrl AsyncProcessMessage(IMessage msg,
                                                IMessageSink replySink)
   {
      return null;
   }

   public IMessage SyncProcessMessage(IMessage msg)
   {
      return nextMessageSink.SyncProcessMessage(msg);
   }

   public override Object this[Object key]
   {
      get
      {
         if (key == typeof(MyKey))
            return this;
         return null;
      }
      set
      {
         throw new NotSupportedException();
      }
   }
   public override ICollection Keys
   {
      get
      {
         ArrayList myKeys = new ArrayList(1);
         myKeys.Add(typeof(MyKey));
         return myKeys;
      }
   }
}
public class MyKey
{
}

<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Friend Class MyClientFormatterChannelSink
   Inherits BaseChannelSinkWithProperties
   Implements IClientChannelSink, IMessageSink
   Private nextClientSink As IClientChannelSink = Nothing
   Private nextMessageSink As IMessageSink = Nothing

   Public Sub New(nextSink As IClientChannelSink, nextMsgSink As IMessageSink)
      MyBase.New()
      nextClientSink = nextSink
      nextMessageSink = nextMsgSink
   End Sub

   Public Sub ProcessMessage(msg As IMessage, requestHeaders As ITransportHeaders, _
               requestStream As Stream, ByRef responseHeaders As ITransportHeaders, _
               ByRef responseStream As Stream) _
               Implements IClientChannelSink.ProcessMessage
      nextClientSink.ProcessMessage(msg, requestHeaders, requestStream, _
                                    responseHeaders, responseStream)
   End Sub

   Public Sub AsyncProcessRequest(sinkStack As IClientChannelSinkStack, _
            msg As IMessage, headers As ITransportHeaders, myStream As Stream) _
            Implements IClientChannelSink.AsyncProcessRequest
      sinkStack.Push(Me, Nothing)
      nextClientSink.AsyncProcessRequest(sinkStack, msg, headers, myStream)
   End Sub

   Public Sub AsyncProcessResponse(sinkStack As IClientResponseChannelSinkStack, _
            state As Object, headers As ITransportHeaders, myStream As Stream) _
            Implements IClientChannelSink.AsyncProcessResponse
      sinkStack.AsyncProcessResponse(headers, myStream)
   End Sub

   Public Function GetRequestStream(msg As IMessage, headers As ITransportHeaders) As Stream _
         Implements IClientChannelSink.GetRequestStream
      Return Nothing
   End Function 'GetRequestStream

   Public ReadOnly Property NextChannelSink() As IClientChannelSink _
         Implements IClientChannelSink.NextChannelSink
      Get
         Return nextClientSink
      End Get
   End Property

   Public ReadOnly Property NextSink() As IMessageSink _
         Implements IMessageSink.NextSink
      Get
         Return nextMessageSink
      End Get
   End Property

   Public Overrides ReadOnly Property Properties() As Collections.IDictionary _
            Implements IClientChannelSink.Properties
      Get
      End Get
   End Property

   Public Function AsyncProcessMessage(msg As IMessage, replySink As IMessageSink) As IMessageCtrl _
            Implements IMessageSink.AsyncProcessMessage
      Return Nothing
   End Function 'AsyncProcessMessage

   Public Function SyncProcessMessage(msg As IMessage) As IMessage _
            Implements IMessageSink.SyncProcessMessage
      Return nextMessageSink.SyncProcessMessage(msg)
   End Function 'SyncProcessMessage

   Default Public Overrides Property Item(key As Object) As Object
      Get
         If key Is GetType(MyKey) Then
            Return Me
         End If
         Return Nothing
      End Get
      Set
         Throw New NotSupportedException()
      End Set
   End Property

   Public Overrides ReadOnly Property Keys() As ICollection
      Get
         Dim myKeys As New ArrayList(0)
         myKeys.Add(GetType(MyKey))
         Return myKeys
      End Get
   End Property
End Class

Public Class MyKey
End Class

Opmerkingen

Kanaalsinks bieden een invoegtoepassing die toegang biedt tot de onderliggende berichten die door het kanaal stromen, evenals de stroom die door het transportmechanisme wordt gebruikt om berichten naar een extern object te verzenden. Kanaalsinks worden aan elkaar gekoppeld in een keten van kanaalsinkproviders en alle kanaalberichten stromen door deze keten van sinks voordat het bericht wordt geserialiseerd en vervoerd.

Deze klasse maakt een koppelingsvraag en een overnamevraag op klasseniveau. Er SecurityException wordt een gegenereerd wanneer de directe aanroeper of de afgeleide klasse geen infrastructuurmachtiging heeft. Zie Koppelingsvereisten en overnamevereisten voor meer informatie over beveiligingsvereisten.

Notities voor uitvoerders

Wanneer u de eigenschap overdrat BaseChannelSinkWithProperties, moet u de Keys eigenschap en de Item[Object] eigenschap implementeren.