BaseChannelSinkWithProperties クラス

[アーティクル]
03/28/2008

プロパティにディクショナリインターフェイスを公開する、チャネルシンクの基本の実装を提供します。

この型のすべてのメンバの一覧については、BaseChannelSinkWithProperties メンバを参照してください。

System.Object
System.Runtime.Remoting.Channels.BaseChannelObjectWithProperties
System.Runtime.Remoting.Channels.BaseChannelSinkWithProperties

MustInherit Public Class BaseChannelSinkWithProperties
   Inherits BaseChannelObjectWithProperties
[C#]
public abstract class BaseChannelSinkWithProperties :
   BaseChannelObjectWithProperties
[C++]
public __gc __abstract class BaseChannelSinkWithProperties : public
   BaseChannelObjectWithProperties
[JScript]
public abstract class BaseChannelSinkWithProperties extends
   BaseChannelObjectWithProperties

スレッドセーフ

この型の public static (Visual Basicでは Shared) のすべてのメンバは、マルチスレッド操作で安全に使用できます。インスタンスのメンバの場合は、スレッドセーフであるとは限りません。

解説

チャネルシンクは、そのチャネルを流れている基になるメッセージにアクセスできるようにするプラグインポイント、およびリモートオブジェクトにメッセージを送信するためにトランスポート機構が使用するストリームを提供します。チャネルシンクは互いにリンクされてチャネルシンクプロバイダのチェインとなり、すべてのチャネルメッセージはこのシンクチェインを流れた後で、メッセージがシリアル化されて転送されます。

メモこのクラスは、リンク確認要求と継承確認要求をクラスレベルで行います。直前の呼び出し元または派生クラスにインフラストラクチャアクセス許可がない場合、 SecurityException がスローされます。セキュリティ要求の詳細については、「リンク確認要求」および「継承確認要求」を参照してください。

継承時の注意: BaseChannelSinkWithProperties から継承する場合は、 Keys プロパティと Item プロパティを実装する必要があります。

使用例

 
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 'New

   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 'ProcessMessage

   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 'AsyncProcessRequest

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

   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 'MyClientFormatterChannelSink

Public Class MyKey
End Class 'MyKey

[C#] 
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
{
}

[C++] 
private __gc class MyClientFormatterChannelSink :
   public BaseChannelSinkWithProperties, public IClientChannelSink, public IMessageSink
   {
   private:
      IClientChannelSink* nextClientSink;
      IMessageSink* nextMessageSink;

   public:
      MyClientFormatterChannelSink() : nextClientSink(0), nextMessageSink(0) {}

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

      void ProcessMessage(IMessage* msg,
         ITransportHeaders* requestHeaders, Stream* requestStream,
         [Out]ITransportHeaders** responseHeaders, [Out]Stream** responseStream)
      {
         nextClientSink->ProcessMessage(msg, requestHeaders, requestStream,
            responseHeaders, responseStream);
      }

      void AsyncProcessRequest(IClientChannelSinkStack* sinkStack,
         IMessage* msg, ITransportHeaders* headers, Stream* myStream)
      {
         sinkStack->Push(this, 0);
         nextClientSink->AsyncProcessRequest(sinkStack,msg,headers,myStream);
      }

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

      Stream* GetRequestStream(IMessage* msg,ITransportHeaders* headers)
      {
         return 0;
      }

      __property IClientChannelSink* get_NextChannelSink()
      {
         return nextClientSink;
      }


      __property IMessageSink* get_NextSink()
      {
         return nextMessageSink;
      }

      IMessageCtrl* AsyncProcessMessage(IMessage* msg,
         IMessageSink* replySink)
      {
         return 0;
      }

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

      __property Object* get_Item( Object* key )
      {
         if (key == __typeof(MyKey))
            return this;
         return 0;
      }

      __property void set_Item( Object* value, Object* key )
      {
         throw new NotSupportedException();
      }

      __property ICollection* get_Keys()
      {
         ArrayList* myKeys = new ArrayList(1);
         myKeys->Add(__typeof(MyKey));
         return myKeys;
      }

   };

   public __gc class MyClientFormatterProvider : public IClientChannelSinkProvider
   {
   private:
      IClientChannelSinkProvider* nextProvider;
   public:
      MyClientFormatterProvider() : nextProvider(0)
      {
      }

      IClientChannelSink* CreateSink(IChannelSender* channel,
         String* myUrl, Object* remoteChannelData)
      {
         IClientChannelSink* nextSink = 0;
         IMessageSink* nextMsgSink = 0;
         if (nextProvider!=0)
         {
            Console::WriteLine(S"Next client sink provider is: {0}", nextProvider);
            // Create a sink chain calling the next sink provider's
            // 'CreateSink' method.
            nextSink=nextProvider->CreateSink(channel,myUrl,remoteChannelData);
            nextMsgSink=dynamic_cast<IMessageSink*>(nextSink);
         }
         return new MyClientFormatterChannelSink(nextSink,nextMsgSink);
      }

      __property IClientChannelSinkProvider* get_Next()
      {
         return nextProvider;
      }

      __property void set_Next( IClientChannelSinkProvider* value )
      {
         nextProvider = value;
      }

   };

[JScript] JScript のサンプルはありません。Visual Basic、C#、および C++ のサンプルを表示するには、このページの左上隅にある言語のフィルタボタンをクリックします。

必要条件

名前空間: System.Runtime.Remoting.Channels

プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ

アセンブリ: Mscorlib (Mscorlib.dll 内)

.NET Framework セキュリティ:

SecurityPermission (インフラストラクチャコードを操作するために必要なアクセス許可) 要求値: SecurityAction.LinkDemand; アクセス許可値: SecurityPermissionFlag.Infrastructure
SecurityPermission (インフラストラクチャコードを操作するために必要なアクセス許可) 要求値: SecurityAction.InheritanceDemand; アクセス許可値: SecurityPermissionFlag.Infrastructure

参照

BaseChannelSinkWithProperties メンバ | System.Runtime.Remoting.Channels 名前空間

次の方法で共有

BaseChannelSinkWithProperties クラス

スレッドセーフ

解説

使用例

必要条件

参照

その他のリソース