ChannelServices.SyncDispatchMessage メソッドとは何？わかりやすく解説 Weblio辞書

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.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

ChannelServices.SyncDispatchMessage メソッド

メッセージに埋め込まれた URI に基づいて、受信メッセージをサーバー側のチェイン (複数の場合がある) に同期的にディスパッチします。

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

Visual Basic (宣言)

Public Shared Function SyncDispatchMessage
 ( _
    msg As IMessage _
) As IMessage

Visual Basic (使用法)

Dim msg As IMessage
Dim returnValue As IMessage

returnValue = ChannelServices.SyncDispatchMessage(msg)

public static IMessage SyncDispatchMessage
 (
    IMessage msg
)

C++

public:
static IMessage^ SyncDispatchMessage (
    IMessage^ msg
)

public static IMessage SyncDispatchMessage
 (
    IMessage msg
)

JScript

public static function SyncDispatchMessage
 (
    msg : IMessage
) : IMessage

パラメータ

msg: ディスパッチするメッセージ。

戻り値
サーバー側のチェインへの呼び出しによって、返信メッセージが返されます。

例外

例外の種類	条件
ArgumentNullException	msg パラメータが null 参照 (Visual Basic では Nothing) です。
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。

使用例

Visual Basic

' 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 'New

<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 'MyProxy

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

   [PermissionSet(SecurityAction.LinkDemand)]
   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);
   }

   [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)]
   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'.
/** @attribute SecurityPermission(SecurityAction.Demand, Flags = SecurityPermissionFlag.Infrastructure)
 */
public class MyProxy extends RealProxy
{
    private String myURIString;
    private MarshalByRefObject myMarshalByRefObject;

    public MyProxy(Type myType)
    {
        super(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.get_URI();
        Console.WriteLine("URI :{0}", myObjRef.get_URI());
    } //MyProxy

    public IMessage Invoke(IMessage myIMessage)
    {
        Console.WriteLine("MyProxy.Invoke Start");
        Console.WriteLine("");
        if (myIMessage instanceof IMethodCallMessage) {
            Console.WriteLine("IMethodCallMessage");
        }

        if (myIMessage instanceof IMethodReturnMessage) {
            Console.WriteLine("IMethodReturnMessage");
        }

        Type msgType = myIMessage.GetType();

        Console.WriteLine("Message Type: {0}", msgType.ToString());
        Console.WriteLine("Message Properties");

        IDictionary myIDictionary = myIMessage.get_Properties();

        // Set the '__Uri' property of 'IMessage' to 'URI' property of
 'ObjRef'.
        myIDictionary.set_Item("__Uri", myURIString);

        IDictionaryEnumerator myIDictionaryEnumerator = 
            (IDictionaryEnumerator)(myIDictionary.GetEnumerator());
        while (myIDictionaryEnumerator.MoveNext()) {
            Object myKey = myIDictionaryEnumerator.get_Key();
            String myKeyName = myKey.ToString();
            Object myValue = myIDictionaryEnumerator.get_Value();
            Console.WriteLine("\t{0} : {1}", myKeyName, 
                myIDictionaryEnumerator.get_Value());

            if (myKeyName.Equals("__Args")) {
                Object myObjectArray[] = (Object[])myValue;
                for (int aIndex = 0; aIndex
 < myObjectArray.length; aIndex++) {
                    Console.WriteLine("\t\targ: {0} myValue: {1}", 
                        (Int32)aIndex, myObjectArray.get_Item(aIndex));
                }
            }

            if (myKeyName.Equals("__MethodSignature")
 && null != myValue) {
                Object myObjectArray[] = (Object[])myValue;
                for (int aIndex = 0; aIndex
 < myObjectArray.length; aIndex++) {
                    Console.WriteLine("\t\targ: {0} myValue: {1}", 
                        (Int32)aIndex, myObjectArray.get_Item(aIndex));
                }
            }
        }

        IMessage myReturnMessage;
        myIDictionary.set_Item("__Uri", myURIString);
        Console.WriteLine("__Uri {0}", myIDictionary.get_Item("__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.get_ReturnValue());
        Console.WriteLine("MyProxy.Invoke - Finish");
        return myReturnMessage;
    } //Invoke
} //MyProxy

.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

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
ChannelServices クラス
ChannelServices メンバ
System.Runtime.Remoting.Channels 名前空間

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ChannelServices.SyncDispatchMessage メソッドとは？わかりやすく解説