RemotingServices.ExecuteMessage メソッド

定義

名前空間:

System.Runtime.Remoting

アセンブリ:

mscorlib.dll

指定したリモート オブジェクトに接続し、指定された IMethodCallMessage を実行します。

public:
 static System::Runtime::Remoting::Messaging::IMethodReturnMessage ^ ExecuteMessage(MarshalByRefObject ^ target, System::Runtime::Remoting::Messaging::IMethodCallMessage ^ reqMsg);

[System.Security.SecurityCritical]
public static System.Runtime.Remoting.Messaging.IMethodReturnMessage ExecuteMessage(MarshalByRefObject target, System.Runtime.Remoting.Messaging.IMethodCallMessage reqMsg);

[<System.Security.SecurityCritical>]
static member ExecuteMessage : MarshalByRefObject * System.Runtime.Remoting.Messaging.IMethodCallMessage -> System.Runtime.Remoting.Messaging.IMethodReturnMessage

Public Shared Function ExecuteMessage (target As MarshalByRefObject, reqMsg As IMethodCallMessage) As IMethodReturnMessage

パラメーター

target

MarshalByRefObject

メソッドを呼び出すリモート オブジェクト。

reqMsg

IMethodCallMessage

指定したリモート オブジェクトのメソッドに対するメソッド呼び出しメッセージ。

返品

IMethodReturnMessage

リモート メソッドの応答。

属性

SecurityCriticalAttribute

例外

SecurityException

直前の呼び出し元にはインフラストラクチャアクセス許可がありません。

RemotingException

メソッドは、オブジェクトのネイティブ コンテキスト以外のコンテキストから呼び出されました。

例

次のコード例では、 ExecuteMessage メソッドを使用して、メソッド呼び出しをリモート オブジェクトに転送する方法を示します。

[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::LinkDemand, 
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
virtual void ProcessMessageStart( IMessage^ requestMessage, bool /*bClientSide*/, bool /*bAsyncCall*/ )
{
   Console::WriteLine( "\nProcessMessageStart" );
   Console::WriteLine( "requestMessage = {0}", requestMessage );
   try
   {
      Console::WriteLine( "SessionId = {0}.", RemotingServices::GetSessionIdForMethodMessage( dynamic_cast<IMethodMessage^>(requestMessage) ) );
   }
   catch ( InvalidCastException^ ) 
   {
      Console::WriteLine( "The requestMessage is not an IMethodMessage*." );
   }

   IMethodCallMessage^ requestMethodCallMessage;
   try
   {
      requestMethodCallMessage = dynamic_cast<IMethodCallMessage^>(requestMessage);

      // Prints the details of the IMethodCallMessage* to the console.
      Console::WriteLine( "\nMethodCall details" );
      Console::WriteLine( "Uri = {0}", requestMethodCallMessage->Uri );
      Console::WriteLine( "TypeName = {0}", requestMethodCallMessage->TypeName );
      Console::WriteLine( "MethodName = {0}", requestMethodCallMessage->MethodName );
      Console::WriteLine( "ArgCount = {0}", requestMethodCallMessage->ArgCount );
      Console::WriteLine( "MethodCall::Args" );
      IEnumerator^ myEnum = requestMethodCallMessage->Args->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         Object^ o = safe_cast<Object^>(myEnum->Current);
         Console::WriteLine( "\t {0}", o );

         // Sends this method call message to another server to replicate
         // the call at the second server.
         if ( requestMethodCallMessage->Uri == replicatedServiceUri )
         {
            String^ repSvr = String::Format(  "{0}{1}", const_cast<String^>(replicationServerUrl), const_cast<String^>(replicatedServiceUri) );
            SampleService^ replicationService = dynamic_cast<SampleService^>(Activator::GetObject( SampleService::typeid, repSvr ));
            IMethodReturnMessage^ returnMessage = RemotingServices::ExecuteMessage( replicationService, requestMethodCallMessage );

            // Prints the results of the method call stored in the IMethodReturnMessage*.
            Console::WriteLine( "\nMessage returned by ExecuteMessage." );
            Console::WriteLine( "\tException = {0}", returnMessage->Exception );
            Console::WriteLine( "\tReturnValue = {0}", returnMessage->ReturnValue );
            Console::WriteLine( "\tOutArgCount = {0}", returnMessage->OutArgCount );
            Console::WriteLine( "Return message OutArgs" );
            IEnumerator^ myEnum = requestMethodCallMessage->Args->GetEnumerator();
            while ( myEnum->MoveNext() )
            {
               Object^ o = safe_cast<Object^>(myEnum->Current);
               Console::WriteLine( "\t {0}", o );
            }
         }
      }
   }
   catch ( InvalidCastException^ ) 
   {
      Console::WriteLine( "The requestMessage is not a MethodCall" );
   }
}

public void ProcessMessageStart(IMessage requestMessage, bool bClientSide, bool bAsyncCall) {

   Console.WriteLine("\nProcessMessageStart");
   Console.WriteLine("requestMessage = {0}", requestMessage);

   try {
      Console.WriteLine("SessionId = {0}.",
          RemotingServices.GetSessionIdForMethodMessage((IMethodMessage)requestMessage));
   }
   catch (InvalidCastException) {
      Console.WriteLine("The requestMessage is not an IMethodMessage.");
   }

   IMethodCallMessage requestMethodCallMessage;

   try {
      requestMethodCallMessage = (IMethodCallMessage)requestMessage;
      // Prints the details of the IMethodCallMessage to the console.
      Console.WriteLine("\nMethodCall details");
      Console.WriteLine("Uri = {0}", requestMethodCallMessage.Uri);
      Console.WriteLine("TypeName = {0}", requestMethodCallMessage.TypeName);
      Console.WriteLine("MethodName = {0}", requestMethodCallMessage.MethodName);
      Console.WriteLine("ArgCount = {0}", requestMethodCallMessage.ArgCount);

      Console.WriteLine("MethodCall.Args");
      foreach(object o in requestMethodCallMessage.Args)
          Console.WriteLine("\t{0}", o);

      // Sends this method call message to another server to replicate
      // the call at the second server.
      if (requestMethodCallMessage.Uri == replicatedServiceUri) {

         SampleService replicationService =
            (SampleService)Activator.GetObject(typeof(SampleService),
            replicationServerUrl + replicatedServiceUri);

         IMethodReturnMessage returnMessage =
            RemotingServices.ExecuteMessage(replicationService, requestMethodCallMessage);

         // Prints the results of the method call stored in the IMethodReturnMessage.
         Console.WriteLine("\nMessage returned by ExecuteMessage.");
         Console.WriteLine("\tException = {0}", returnMessage.Exception);
         Console.WriteLine("\tReturnValue = {0}", returnMessage.ReturnValue);
         Console.WriteLine("\tOutArgCount = {0}", returnMessage.OutArgCount);
         Console.WriteLine("Return message OutArgs");

         foreach(object o in requestMethodCallMessage.Args)
            Console.WriteLine("\t{0}", o);
      }
   }
   catch (InvalidCastException) {
       Console.WriteLine("The requestMessage is not a MethodCall");
   }
}

<SecurityPermission(SecurityAction.LinkDemand, Flags := SecurityPermissionFlag.Infrastructure)> _
Public Sub ProcessMessageStart(requestMessage As IMessage, bClientSide As Boolean, bAsyncCall As Boolean) Implements IDynamicMessageSink.ProcessMessageStart

   Console.WriteLine(ControlChars.Cr + "ProcessMessageStart")
   Console.WriteLine("requestMessage = {0}", requestMessage)
   
   Try
      Console.WriteLine("SessionId = {0}.", RemotingServices.GetSessionIdForMethodMessage(CType(requestMessage, IMethodMessage)))
   Catch e As InvalidCastException
      Console.WriteLine("The requestMessage is not an IMethodMessage.")
   End Try
   
   Dim requestMethodCallMessage As IMethodCallMessage
   
   Try
      requestMethodCallMessage = CType(requestMessage, MethodCall)
      
      ' Prints the details of the IMethodCallMessage to the console
      Console.WriteLine(ControlChars.Cr + "MethodCall details")
      Console.WriteLine("Uri = {0}", requestMethodCallMessage.Uri)
      Console.WriteLine("TypeName = {0}", requestMethodCallMessage.TypeName)
      Console.WriteLine("MethodName = {0}", requestMethodCallMessage.MethodName)
      Console.WriteLine("ArgCount = {0}", requestMethodCallMessage.ArgCount)
      Console.WriteLine("MethodCall.Args")
      
      Dim o As Object
      For Each o In  requestMethodCallMessage.Args
         Console.WriteLine(ControlChars.Tab + "{0}", o)
      Next o 
      
      ' Sends this method call message to another server to replicate
      ' the call at the second server
      If requestMethodCallMessage.Uri = replicatedServiceUri Then
         
         Dim replicationService As SampleService = CType(Activator.GetObject(GetType(SampleService), replicationServerUrl + replicatedServiceUri), SampleService)
         Dim returnMessage As IMethodReturnMessage = RemotingServices.ExecuteMessage(replicationService, requestMethodCallMessage)
         
         ' Prints the results of the method call stored in the IMethodReturnMessage.
         Console.WriteLine(ControlChars.Cr + "Message returned by ExecuteMessage.")
         Console.WriteLine(ControlChars.Tab + "Exception = {0}", returnMessage.Exception)
         Console.WriteLine(ControlChars.Tab + "ReturnValue = {0}", returnMessage.ReturnValue)
         Console.WriteLine(ControlChars.Tab + "OutArgCount = {0}", returnMessage.OutArgCount)
         Console.WriteLine("Return message OutArgs")
         For Each o In  requestMethodCallMessage.Args
            Console.WriteLine(ControlChars.Tab + "{0}", o)
         Next o
         
      End If
      
   Catch e As InvalidCastException
      Console.WriteLine("The requestMessage is not a MethodCall")
   End Try

End Sub

注釈

現在のメソッドは、指定したメソッド呼び出しを別のリモート オブジェクトに転送するために、サーバーによって特殊なケースで使用されます。 このメソッドは、呼び出し元が適切なコンテキストにある場合にのみ呼び出すことができます。