RemotingServices.GetSessionIdForMethodMessage メソッド

.NET Framework クラス ライブラリ リファレンス

RemotingServices.GetSessionIdForMethodMessage メソッド

メッセージのセッション ID を取得します。

名前空間: System.Runtime.Remoting
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Shared Function GetSessionIdForMethodMessage
 ( _
    msg As IMethodMessage _
) As String

Visual Basic (使用法)

Dim msg As IMethodMessage
Dim returnValue As String

returnValue = RemotingServices.GetSessionIdForMethodMessage(msg)

C#

public static string GetSessionIdForMethodMessage
 (
    IMethodMessage msg
)

C++

public:
static String^ GetSessionIdForMethodMessage (
    IMethodMessage^ msg
)

J#

public static String GetSessionIdForMethodMessage
 (
    IMethodMessage msg
)

JScript

public static function GetSessionIdForMethodMessage
 (
    msg : IMethodMessage
) : String

パラメータ

msg

セッション ID が要求される対象の IMethodMessage。

戻り値
現在のセッションを一意に識別するセッション ID 文字列。

例外

例外の種類	条件
SecurityException	直前の呼び出し元に、インフラストラクチャ アクセス許可がありません。

解説

同じアプリケーションのオブジェクトに対して同じセッション ID が返される可能性はありますが、このメソッドは異なるリモート アプリケーションの 2 つのオブジェクトに対して同じセッション ID を返すことはありません。

セッションおよびセッション ID の識別の詳細については、「ASP.NET のセッション状態」を参照してください。

使用例

現在のセッションのセッション ID 文字列を取得する方法のコード例を次に示します。

Visual Basic

<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 'ProcessMessageStart

C#

[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.Infrastructure)]
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");
   }
}

C++

[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" );
   }
}

J#

public void ProcessMessageStart(IMessage requestMessage,boolean
 bClientSide,
    boolean bAsyncCall)
{
    Console.WriteLine("\nProcessMessageStart");
    Console.WriteLine("requestMessage = {0}", requestMessage);
    try {
        Console.WriteLine("SessionId = {0}.", RemotingServices.
            GetSessionIdForMethodMessage((IMethodMessage)requestMessage));
    }
    catch (InvalidCastException exp) {
        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.get_Uri());
        Console.WriteLine("TypeName = {0}", requestMethodCallMessage.
            get_TypeName());
        Console.WriteLine("MethodName = {0}", requestMethodCallMessage.
            get_MethodName());
        Console.WriteLine("ArgCount = {0}",
            (System.Int32)requestMethodCallMessage.get_ArgCount());
        Console.WriteLine("MethodCall.Args");            
        Object o = null;
        for (int iCtr = 0; iCtr < requestMethodCallMessage.get_Args().
            get_Length(); iCtr++) {
            o = requestMethodCallMessage.get_Args()[iCtr];
            Console.WriteLine("\t{0}", o);
        }
        // Sends this method call message to another server to replicate
        // the call at the second server.
        if (requestMethodCallMessage.get_Uri().Equals(replicatedServiceUri))
 {
            SampleService replicationService = (SampleService)(Activator.
                GetObject(SampleService.class.ToType(), 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.
                get_Exception());
            Console.WriteLine("\tReturnValue = {0}", returnMessage.
                get_ReturnValue());
            Console.WriteLine("\tOutArgCount = {0}", 
                (System.Int32)returnMessage.get_OutArgCount());
            Console.WriteLine("Return message OutArgs");              
                  
            for (int iCtr1 = 0; iCtr1 <
 requestMethodCallMessage.get_Args().
                get_Length(); iCtr1++) {
                o = requestMethodCallMessage.get_Args()[iCtr1];
                Console.WriteLine("\t{0}", o);
            }
        }
    }
    catch (InvalidCastException exp) {
        Console.WriteLine("The requestMessage is not a MethodCall");
    }
} //ProcessMessageStart

.NET Framework のセキュリティ

• 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

プラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
RemotingServices クラス
RemotingServices メンバ
System.Runtime.Remoting 名前空間
その他の技術情報
ASP.NET のセッション状態