BaseChannelObjectWithProperties Classe

Definição

Namespace:

System.Runtime.Remoting.Channels

Assembly:

mscorlib.dll

Oferece uma implementação base de um objeto de canal que expõe uma interface de dicionário a suas propriedades.

public ref class BaseChannelObjectWithProperties abstract : System::Collections::IDictionary

[System.Runtime.InteropServices.ComVisible(true)]
[System.Security.SecurityCritical]
public abstract class BaseChannelObjectWithProperties : System.Collections.IDictionary

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Security.SecurityCritical>]
type BaseChannelObjectWithProperties = class
    interface IDictionary
    interface ICollection
    interface IEnumerable

Public MustInherit Class BaseChannelObjectWithProperties
Implements IDictionary

Herança

Object

BaseChannelObjectWithProperties

Derivado

System.Runtime.Remoting.Channels.BaseChannelSinkWithProperties

System.Runtime.Remoting.Channels.BaseChannelWithProperties

Atributos

ComVisibleAttribute SecurityCriticalAttribute

Implementações

ICollection IDictionary IEnumerable

Exemplos

   [PermissionSet(SecurityAction::Demand, Name="FullTrust")]
   private ref class LoggingServerChannelSink: public BaseChannelObjectWithProperties, public IServerChannelSink
   {
   private:
      IServerChannelSink^ nextSink2;
      bool bEnabled2;

   public:
      LoggingServerChannelSink()
         : nextSink2( nullptr ), bEnabled2( true )
      {}

      LoggingServerChannelSink( IServerChannelSink^ localNextSink )
         : BaseChannelObjectWithProperties()
      {
         nextSink2 = localNextSink;
      }

      virtual ServerProcessing ProcessMessage( IServerChannelSinkStack^ sinkStack, IMessage^ requestMsg, ITransportHeaders^ requestHeaders, Stream^ requestStream, [Out]IMessage^% responseMsg, [Out]ITransportHeaders^% responseHeaders, [Out]Stream^% responseStream ) = IServerChannelSink::ProcessMessage
      {
         if ( bEnabled2 )
         {
            Console::WriteLine( "----------Request Headers-----------" );
            
            Console::WriteLine( "{0}:{1}", CommonTransportKeys::IPAddress,
               requestHeaders[ CommonTransportKeys::IPAddress ] );
            Console::WriteLine( "{0}:{1}", CommonTransportKeys::ConnectionId,
               requestHeaders[ CommonTransportKeys::ConnectionId ] );
            Console::WriteLine( "{0}:{1}", CommonTransportKeys::RequestUri,
               requestHeaders[ CommonTransportKeys::RequestUri ] );
         }

         sinkStack->Push( this, nullptr );
         ServerProcessing processing = nextSink2->ProcessMessage( sinkStack, requestMsg, requestHeaders, requestStream, responseMsg, responseHeaders, responseStream );
         switch ( processing )
         {
            case ServerProcessing::Complete:
               sinkStack->Pop( this );
               break;

            case ServerProcessing::OneWay:
               sinkStack->Pop( this );
               break;

            case ServerProcessing::Async:
               sinkStack->Store( this, nullptr );
               break;
         }
         return processing;
      }

      virtual void AsyncProcessResponse( IServerResponseChannelSinkStack^ sinkStack, Object^ /*state*/, IMessage^ msg, ITransportHeaders^ headers, Stream^ stream1 )
      {
         sinkStack->AsyncProcessResponse( msg, headers, stream1 );
      }

      virtual Stream^ GetResponseStream( IServerResponseChannelSinkStack^ /*sinkStack*/, Object^ /*state*/, IMessage^ /*msg*/, ITransportHeaders^ /*headers*/ )
      {
         return nullptr;
      }

      property IServerChannelSink^ NextChannelSink 
      {
         virtual IServerChannelSink^ get()
         {
            return nextSink2;
         }
      }
   };

   [PermissionSet(SecurityAction::Demand, Name="FullTrust")]
   public ref class LoggingServerChannelSinkProvider: public IServerChannelSinkProvider
   {
   private:
      IServerChannelSinkProvider^ next2;

   public:
      LoggingServerChannelSinkProvider()
         : next2( nullptr )
      {}

      LoggingServerChannelSinkProvider( IDictionary^ /*properties*/, ICollection^ /*providerData*/ ){}

      virtual void GetChannelData( IChannelDataStore^ /*channelData*/ ){}

      virtual IServerChannelSink^ CreateSink( IChannelReceiver^ channel1 )
      {
         IServerChannelSink^ localNextSink = nullptr;
         if ( next2 != nullptr )
                  localNextSink = next2->CreateSink( channel1 );

         return gcnew LoggingServerChannelSink( localNextSink );
      }

      property IServerChannelSinkProvider^ Next 
      {
         virtual IServerChannelSinkProvider^ get()
         {
            return next2;
         }

         virtual void set( IServerChannelSinkProvider^ value )
         {
            next2 = value;
         }
      }
   };
}

   public class LoggingServerChannelSinkProvider : IServerChannelSinkProvider
   {
      private IServerChannelSinkProvider next2 = null;
      public LoggingServerChannelSinkProvider(IDictionary properties, ICollection providerData)
      {
      }
      public void GetChannelData(IChannelDataStore channelData)
      {
      }
      public IServerChannelSink CreateSink(IChannelReceiver channel1)
      {
         IServerChannelSink localNextSink = null;
         if (next2 != null)
            localNextSink = next2.CreateSink(channel1);
         return new LoggingServerChannelSink(localNextSink);
      }
      public IServerChannelSinkProvider Next
      {
         get
         {
            return next2;
         }
         set
         {
            next2 = value;
         }
      }
   }
   
   internal class LoggingServerChannelSink : BaseChannelObjectWithProperties, IServerChannelSink
   {
      private IServerChannelSink nextSink2 = null;
      private bool bEnabled2 = true;
      public LoggingServerChannelSink(IServerChannelSink localNextSink) : base()
      {
         nextSink2 = localNextSink;
      }
      public ServerProcessing ProcessMessage(   IServerChannelSinkStack sinkStack,
   IMessage requestMsg,
   ITransportHeaders requestHeaders,
   Stream requestStream,
   out IMessage responseMsg,
   out ITransportHeaders responseHeaders,
   out Stream responseStream
)
      {
         if (bEnabled2)
         {
            Console.WriteLine("----------Request Headers-----------");
            Console.WriteLine( CommonTransportKeys.IPAddress + ":" +
               requestHeaders[CommonTransportKeys.IPAddress]);
            Console.WriteLine( CommonTransportKeys.ConnectionId + ":" +
               requestHeaders[CommonTransportKeys.ConnectionId]);
            Console.WriteLine( CommonTransportKeys.RequestUri + ":" +
               requestHeaders[CommonTransportKeys.RequestUri]);
         }
         sinkStack.Push(this, null);
         ServerProcessing processing =
            nextSink2.ProcessMessage(sinkStack, requestMsg, requestHeaders, requestStream, out responseMsg,
            out responseHeaders, out responseStream);

         switch (processing)
         {
            case ServerProcessing.Complete :
            {
               sinkStack.Pop(this);
               break;
            }
            case ServerProcessing.OneWay:
            {
               sinkStack.Pop(this);
               break;
            }
            case ServerProcessing.Async:
            {
               sinkStack.Store(this, null);
               break;
            }
         }
         return processing;
      }
      public void AsyncProcessResponse(IServerResponseChannelSinkStack sinkStack, Object state,
         IMessage msg, ITransportHeaders headers, Stream stream1)
      {
         sinkStack.AsyncProcessResponse(msg, headers, stream1);
      }
      public Stream GetResponseStream(IServerResponseChannelSinkStack sinkStack, Object state,
         IMessage msg, ITransportHeaders headers)
      {
         return null;
      }
      public IServerChannelSink NextChannelSink
      {
         get
         {
            return nextSink2;
         }
      }
   }

<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Public Class LoggingServerChannelSinkProvider
   Implements IServerChannelSinkProvider 
   Private next2 As IServerChannelSinkProvider = Nothing
   
   Public Sub New(properties As IDictionary, providerData As ICollection)
   End Sub
   
   Public Sub GetChannelData(channelData As IChannelDataStore) _ 
                               Implements IServerChannelSinkProvider.GetChannelData
   End Sub
   
   Public Function CreateSink(channel1 As IChannelReceiver) As IServerChannelSink _ 
                                     Implements IServerChannelSinkProvider.CreateSink
      Dim localNextSink As IServerChannelSink = Nothing
      If Not (next2 Is Nothing) Then
         localNextSink = next2.CreateSink(channel1)
      End If
      Return New LoggingServerChannelSink(localNextSink)
   End Function 'CreateSink
   
   Public Property [Next]() As IServerChannelSinkProvider Implements _ 
                                                     IServerChannelSinkProvider.Next
      Get
         Return next2
      End Get
      Set
         next2 = value
      End Set
   End Property
End Class

<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _ 
Friend Class LoggingServerChannelSink
   Inherits BaseChannelObjectWithProperties
   Implements IServerChannelSink 
   Private nextSink2 As IServerChannelSink = Nothing
   Private bEnabled2 As Boolean = True
   
   Public Sub New(localNextSink As IServerChannelSink)
      MyBase.new()
      nextSink2 = localNextSink
   End Sub
   
  Public Function ProcessMessage(   ByVal sinkStack As IServerChannelSinkStack, _
      ByVal requestMsg As IMessage, _
      ByVal requestHeaders As ITransportHeaders, _
      ByVal requestStream As Stream, _
      <Out> ByRef responseMsg As IMessage, _
      <Out> ByRef responseHeaders As ITransportHeaders, _
      <Out> ByRef responseStream As Stream _
   ) As ServerProcessing _ 
      Implements IServerChannelSink.ProcessMessage
      If bEnabled2 Then
         Console.WriteLine("----------Request Headers-----------")
         Console.WriteLine(CommonTransportKeys.IPAddress.ToString() + ":" + _ 
                              requestHeaders(CommonTransportKeys.IPAddress).ToString())
      Console.WriteLine(CommonTransportKeys.ConnectionId.ToString() + ":" + _ 
                              requestHeaders(CommonTransportKeys.ConnectionId).ToString())
      Console.WriteLine(CommonTransportKeys.RequestUri.ToString() + ":" + _ 
                              requestHeaders(CommonTransportKeys.RequestUri).ToString())
      End If
      sinkStack.Push(Me, Nothing)
      Dim processing As ServerProcessing = _ 
                                   nextSink2.ProcessMessage _ 
               (sinkStack, requestMsg, requestHeaders, requestStream, responseMsg, responseHeaders, responseStream)
      
      Select Case processing
         Case ServerProcessing.Complete
               sinkStack.Pop(Me)
         Case ServerProcessing.OneWay
               sinkStack.Pop(Me)
         Case ServerProcessing.Async
               sinkStack.Store(Me, Nothing)
      End Select
      Return processing
   End Function 'ProcessMessage
   
   Public Sub AsyncProcessResponse(sinkStack As IServerResponseChannelSinkStack, _ 
           state As Object, msg As IMessage, headers As ITransportHeaders, stream1 As Stream) _ 
                                    Implements IServerChannelSink.AsyncProcessResponse
      sinkStack.AsyncProcessResponse(msg, headers, stream1)
   End Sub
   
   Public Function GetResponseStream(sinkStack As IServerResponseChannelSinkStack, _ 
               state As Object, msg As IMessage, headers As ITransportHeaders) As Stream _ 
                                    Implements IServerChannelSink.GetResponseStream
      Return Nothing
   End Function 'GetResponseStream
   
   Public ReadOnly Property NextChannelSink() As IServerChannelSink _ 
                                       Implements IServerChannelSink.NextChannelSink
      Get
         Return nextSink2
      End Get
   End Property

   Public Overrides ReadOnly Property Properties() As Collections.IDictionary _ 
               Implements IServerChannelSink.Properties
      Get
     return nothing		
      End Get
   End Property
End Class

Comentários

BaseChannelObjectWithProperties é a classe base de BaseChannelWithProperties e BaseChannelSinkWithProperties.

BaseChannelWithProperties e BaseChannelSinkWithProperties podem ser usados como classes base para canais e coletores de canal que fornecem propriedades nomeadas.

BaseChannelObjectWithProperties manipula a tarefa complexa de solicitar suas propriedades a um objeto de canal.

Essa classe faz uma demanda de link e uma demanda de herança no nível da classe. Um SecurityException é gerado quando o chamador imediato ou a classe derivada não tem permissão de infraestrutura. Para obter detalhes sobre as demandas de segurança, consulte Vincular demandas e demandas de herança.

Notas aos Implementadores

Ao herdar de BaseChannelObjectWithProperties, você deve substituir a Keys propriedade e a Item[Object] propriedade .

Construtores

BaseChannelObjectWithProperties()

Inicializa uma nova instância da classe BaseChannelObjectWithProperties.

Propriedades

Count	Obtém o número de propriedades associadas ao objeto de canal.
IsFixedSize	Obtém um valor que indica se o número de propriedades que podem ser inseridas no canal de objeto é fixo.
IsReadOnly	Obtém um valor que indica se a coleção de propriedades no objeto de canal é somente leitura.
IsSynchronized	Obtém um valor que indica se o dicionário de propriedades de objeto de canal é sincronizado.
Item[Object]	Quando substituída em uma classe derivada, obtém ou define a propriedade associada à chave especificada.
Keys	Quando substituída em uma classe derivada, obtém um ICollection de chaves ao qual as propriedades de objeto de canal estão associadas.
Properties	Obtém um IDictionary das propriedades de canal associadas ao objeto de canal.
SyncRoot	Obtém um objeto usado para sincronizar o acesso ao BaseChannelObjectWithProperties.
Values	Obtém um ICollection dos valores das propriedades associadas ao objeto de canal.

Métodos

Add(Object, Object)	Gera uma NotSupportedException.
Clear()	Gera uma NotSupportedException.
Contains(Object)	Retorna um valor que indica se o objeto de canal contém uma propriedade associada à chave especificada.
CopyTo(Array, Int32)	Gera uma NotSupportedException.
Equals(Object)	Determina se o objeto especificado é igual ao objeto atual. (Herdado de Object)
GetEnumerator()	Retorna um IDictionaryEnumerator que enumera em todas as propriedades associadas ao objeto de canal.
GetHashCode()	Serve como a função de hash padrão. (Herdado de Object)
GetType()	Obtém o Type da instância atual. (Herdado de Object)
MemberwiseClone()	Cria uma cópia superficial do Object atual. (Herdado de Object)
Remove(Object)	Gera uma NotSupportedException.
ToString()	Retorna uma cadeia de caracteres que representa o objeto atual. (Herdado de Object)

Implantações explícitas de interface

IEnumerable.GetEnumerator()

Retorna um IEnumerator que enumera em todas as propriedades associadas ao objeto de canal.

Métodos de Extensão

Cast<TResult>(IEnumerable)	Converte os elementos de um IEnumerable para o tipo especificado.
OfType<TResult>(IEnumerable)	Filtra os elementos de um IEnumerable com base em um tipo especificado.
AsParallel(IEnumerable)	Habilita a paralelização de uma consulta.
AsQueryable(IEnumerable)	Converte um IEnumerable em um IQueryable.