ChannelServices.SyncDispatchMessage(IMessage) Metodo

Riferimento

Definizione

Spazio dei nomi:: System.Runtime.Remoting.Channels

Assembly:: mscorlib.dll

Importante

Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.

Invia in modo sincrono il messaggio in arrivo alla catena o alle catene sul lato server, in base all'URI incorporato nel messaggio.

public:
 static System::Runtime::Remoting::Messaging::IMessage ^ SyncDispatchMessage(System::Runtime::Remoting::Messaging::IMessage ^ msg);

public static System.Runtime.Remoting.Messaging.IMessage SyncDispatchMessage (System.Runtime.Remoting.Messaging.IMessage msg);

[System.Security.SecurityCritical]
public static System.Runtime.Remoting.Messaging.IMessage SyncDispatchMessage (System.Runtime.Remoting.Messaging.IMessage msg);

static member SyncDispatchMessage : System.Runtime.Remoting.Messaging.IMessage -> System.Runtime.Remoting.Messaging.IMessage

[<System.Security.SecurityCritical>]
static member SyncDispatchMessage : System.Runtime.Remoting.Messaging.IMessage -> System.Runtime.Remoting.Messaging.IMessage

Public Shared Function SyncDispatchMessage (msg As IMessage) As IMessage

Parametri

msg: IMessage

Messaggio da inviare.

Restituisce

IMessage

Un messaggio di risposta viene restituito dalla chiamata alla catena sul lato server.

Attributi: SecurityCriticalAttribute

Eccezioni

ArgumentNullException

Il valore del parametro msg è null.

SecurityException

Il chiamante immediato non dispone dell'autorizzazione di infrastruttura.

Esempio

// Create a custom 'RealProxy'.
public ref class MyProxy: public RealProxy
{
private:
   String^ myURIString;
   MarshalByRefObject^ myMarshalByRefObject;

public:
   MyProxy( Type^ myType )
      : RealProxy( myType )
   {
      
      // RealProxy uses the Type to generate a transparent proxy.
      myMarshalByRefObject = dynamic_cast<MarshalByRefObject^>(Activator::CreateInstance(myType));
      
      // Get 'ObjRef', for transmission serialization between application domains.
      ObjRef^ myObjRef = RemotingServices::Marshal( myMarshalByRefObject );
      
      // Get the 'URI' property of 'ObjRef' and store it.
      myURIString = myObjRef->URI;
      Console::WriteLine( "URI :{0}", myObjRef->URI );
   }

   virtual IMessage^ Invoke ( IMessage^ myIMessage ) override 
    {
      Console::WriteLine( "MyProxy.Invoke Start" );
      Console::WriteLine( "" );
      if ( dynamic_cast<IMethodCallMessage^>(myIMessage) )
            Console::WriteLine( "IMethodCallMessage" );

      if ( dynamic_cast<IMethodReturnMessage^>(myIMessage) )
            Console::WriteLine( "IMethodReturnMessage" );

      Type^ msgType = myIMessage->GetType();
      Console::WriteLine( "Message Type: {0}", msgType );
      Console::WriteLine( "Message Properties" );
      IDictionary^ myIDictionary = myIMessage->Properties;
      
      // Set the '__Uri' property of 'IMessage' to 'URI' property of 'ObjRef'.
      myIDictionary->default[ "__Uri" ] = myURIString;
      IDictionaryEnumerator^ myIDictionaryEnumerator = dynamic_cast<IDictionaryEnumerator^>(myIDictionary->GetEnumerator());
      while ( myIDictionaryEnumerator->MoveNext() )
      {
         Object^ myKey = myIDictionaryEnumerator->Key;
         String^ myKeyName = myKey->ToString();
         Object^ myValue = myIDictionaryEnumerator->Value;
         Console::WriteLine( "\t{0} : {1}", myKeyName, myIDictionaryEnumerator->Value );
         if ( myKeyName->Equals( "__Args" ) )
         {
            array<Object^>^myObjectArray = (array<Object^>^)myValue;
            for ( int aIndex = 0; aIndex < myObjectArray->Length; aIndex++ )
               Console::WriteLine( "\t\targ: {0} myValue: {1}", aIndex, myObjectArray[ aIndex ] );
         }

         if ( (myKeyName->Equals( "__MethodSignature" )) && (nullptr != myValue) )
         {
            array<Object^>^myObjectArray = (array<Object^>^)myValue;
            for ( int aIndex = 0; aIndex < myObjectArray->Length; aIndex++ )
               Console::WriteLine( "\t\targ: {0} myValue: {1}", aIndex, myObjectArray[ aIndex ] );
         }
      }

      IMessage^ myReturnMessage;
      myIDictionary->default[ "__Uri" ] = myURIString;
      Console::WriteLine( "__Uri {0}", myIDictionary->default[ "__Uri" ] );
      Console::WriteLine( "ChannelServices.SyncDispatchMessage" );
      myReturnMessage = ChannelServices::SyncDispatchMessage( myIMessage );
      
      // Push return value and OUT parameters back onto stack.
      IMethodReturnMessage^ myMethodReturnMessage = dynamic_cast<IMethodReturnMessage^>(myReturnMessage);
      Console::WriteLine( "IMethodReturnMessage.ReturnValue: {0}", myMethodReturnMessage->ReturnValue );
      Console::WriteLine( "MyProxy.Invoke - Finish" );
      return myReturnMessage;
   }
};

// Create a custom 'RealProxy'.
public class MyProxy : RealProxy
{
   String myURIString;
   MarshalByRefObject myMarshalByRefObject;

   public MyProxy(Type myType) : base(myType)
   {
      // RealProxy uses the Type to generate a transparent proxy.
      myMarshalByRefObject = (MarshalByRefObject)Activator.CreateInstance((myType));
      // Get 'ObjRef', for transmission serialization between application domains.
      ObjRef myObjRef = RemotingServices.Marshal(myMarshalByRefObject);
      // Get the 'URI' property of 'ObjRef' and store it.
      myURIString = myObjRef.URI;
      Console.WriteLine("URI :{0}", myObjRef.URI);
   }

   public override IMessage Invoke(IMessage myIMessage)
   {
      Console.WriteLine("MyProxy.Invoke Start");
      Console.WriteLine("");

      if (myIMessage is IMethodCallMessage)
         Console.WriteLine("IMethodCallMessage");

      if (myIMessage is IMethodReturnMessage)
         Console.WriteLine("IMethodReturnMessage");

      Type msgType = myIMessage.GetType();
      Console.WriteLine("Message Type: {0}", msgType.ToString());
      Console.WriteLine("Message Properties");
      IDictionary myIDictionary = myIMessage.Properties;
      // Set the '__Uri' property of 'IMessage' to 'URI' property of 'ObjRef'.
      myIDictionary["__Uri"] = myURIString;
      IDictionaryEnumerator myIDictionaryEnumerator =
         (IDictionaryEnumerator) myIDictionary.GetEnumerator();

      while (myIDictionaryEnumerator.MoveNext())
      {
         Object myKey = myIDictionaryEnumerator.Key;
         String myKeyName = myKey.ToString();
         Object myValue = myIDictionaryEnumerator.Value;

         Console.WriteLine("\t{0} : {1}", myKeyName,
            myIDictionaryEnumerator.Value);
         if (myKeyName == "__Args")
         {
            Object[] myObjectArray = (Object[])myValue;
            for (int aIndex = 0; aIndex < myObjectArray.Length; aIndex++)
               Console.WriteLine("\t\targ: {0} myValue: {1}", aIndex,
                  myObjectArray[aIndex]);
         }

         if ((myKeyName == "__MethodSignature") && (null != myValue))
         {
            Object[] myObjectArray = (Object[])myValue;
            for (int aIndex = 0; aIndex < myObjectArray.Length; aIndex++)
               Console.WriteLine("\t\targ: {0} myValue: {1}", aIndex,
                  myObjectArray[aIndex]);
         }
      }

      IMessage myReturnMessage;

      myIDictionary["__Uri"] = myURIString;
      Console.WriteLine("__Uri {0}", myIDictionary["__Uri"]);

      Console.WriteLine("ChannelServices.SyncDispatchMessage");
      myReturnMessage = ChannelServices.SyncDispatchMessage(myIMessage);

      // Push return value and OUT parameters back onto stack.

      IMethodReturnMessage myMethodReturnMessage = (IMethodReturnMessage)
         myReturnMessage;
      Console.WriteLine("IMethodReturnMessage.ReturnValue: {0}",
         myMethodReturnMessage.ReturnValue);

      Console.WriteLine("MyProxy.Invoke - Finish");

      return myReturnMessage;
   }
}

' Create a custom 'RealProxy'.
Public Class MyProxy
   Inherits RealProxy
   Private myURIString As String
   Private myMarshalByRefObject As MarshalByRefObject

   <PermissionSet(SecurityAction.LinkDemand)> _
   Public Sub New(ByVal myType As Type)
      MyBase.New(myType)
      ' RealProxy uses the Type to generate a transparent proxy.
      myMarshalByRefObject = CType(Activator.CreateInstance(myType), MarshalByRefObject)
      ' Get 'ObjRef', for transmission serialization between application domains.
      Dim myObjRef As ObjRef = RemotingServices.Marshal(myMarshalByRefObject)
      ' Get the 'URI' property of 'ObjRef' and store it.
      myURIString = myObjRef.URI
      Console.WriteLine("URI :{0}", myObjRef.URI)
   End Sub

<SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags:=SecurityPermissionFlag.Infrastructure)> _
   Public Overrides Function Invoke(ByVal myIMessage As IMessage) As IMessage
      Console.WriteLine("MyProxy.Invoke Start")
      Console.WriteLine("")

      If TypeOf myIMessage Is IMethodCallMessage Then
         Console.WriteLine("IMethodCallMessage")
      End If
      If TypeOf myIMessage Is IMethodReturnMessage Then
         Console.WriteLine("IMethodReturnMessage")
      End If
      Dim msgType As Type
      msgType = CObj(myIMessage).GetType
      Console.WriteLine("Message Type: {0}", msgType.ToString())
      Console.WriteLine("Message Properties")
      Dim myIDictionary As IDictionary = myIMessage.Properties
      ' Set the '__Uri' property of 'IMessage' to 'URI' property of 'ObjRef'.
      myIDictionary("__Uri") = myURIString
      Dim myIDictionaryEnumerator As IDictionaryEnumerator = CType(myIDictionary.GetEnumerator(), _
                                                                    IDictionaryEnumerator)

      While myIDictionaryEnumerator.MoveNext()
         Dim myKey As Object = myIDictionaryEnumerator.Key
         Dim myKeyName As String = myKey.ToString()
         Dim myValue As Object = myIDictionaryEnumerator.Value

         Console.WriteLine(ControlChars.Tab + "{0} : {1}", myKeyName, myIDictionaryEnumerator.Value)
         If myKeyName = "__Args" Then
            Dim myObjectArray As Object() = CType(myValue, Object())
            Dim aIndex As Integer
            For aIndex = 0 To myObjectArray.Length - 1
               Console.WriteLine(ControlChars.Tab + ControlChars.Tab + "arg: {0} myValue: {1}", _
                                                              aIndex, myObjectArray(aIndex))
             Next aIndex
         End If

         If myKeyName = "__MethodSignature" And Not Nothing Is myValue Then
            Dim myObjectArray As Object() = CType(myValue, Object())
            Dim aIndex As Integer
            For aIndex = 0 To myObjectArray.Length - 1
               Console.WriteLine(ControlChars.Tab + ControlChars.Tab + "arg: {0} myValue: {1}", _
                                                           aIndex, myObjectArray(aIndex))
            Next aIndex
         End If
      End While

        Dim myReturnMessage As IMessage

        myIDictionary("__Uri") = myURIString
        Console.WriteLine("__Uri {0}", myIDictionary("__Uri"))

        Console.WriteLine("ChannelServices.SyncDispatchMessage")
        myReturnMessage = ChannelServices.SyncDispatchMessage(CObj(myIMessage))

        ' Push return value and OUT parameters back onto stack.
        Dim myMethodReturnMessage As IMethodReturnMessage = CType(myReturnMessage, IMethodReturnMessage)
        Console.WriteLine("IMethodReturnMessage.ReturnValue: {0}", myMethodReturnMessage.ReturnValue)

        Console.WriteLine("MyProxy.Invoke - Finish")

        Return myReturnMessage
    End Function 'Invoke
End Class

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