CallContext.GetData(String) 메서드

정의

네임스페이스:
System.Runtime.Remoting.Messaging
어셈블리:
mscorlib.dll

에서 지정된 이름을 가진 개체를 검색합니다 CallContext.

public:
 static System::Object ^ GetData(System::String ^ name);
public static object GetData(string name);
[System.Security.SecurityCritical]
public static object GetData(string name);
static member GetData : string -> obj
[<System.Security.SecurityCritical>]
static member GetData : string -> obj
Public Shared Function GetData (name As String) As Object

매개 변수

name
String

호출 컨텍스트에 있는 항목의 이름입니다.

반품

Object

지정된 이름과 연결된 호출 컨텍스트의 개체입니다.

특성
SecurityCriticalAttribute

예외

SecurityException

즉시 호출자에게 인프라 권한이 없습니다.

예제

다음 코드 예제에서는 보안 GetData를 식별을 위해 원격 위치로 전송하는 방법을 보여 줍니다. 이 샘플에서 사용되는 클래스의 LogicalCallContextData 코드를 보려면 인터페이스 예제를 ILogicalThreadAffinative 참조하세요. 샘플에서 사용되는 클라이언트 클래스의 코드를 보려면 클래스의 예제를 CallContext 참조하세요. 이 샘플에서 사용되는 서버 클래스의 코드를 보려면 클래스의 예제를 RegisterActivatedServiceType 참조하세요.

using namespace System;
using namespace System::Text;
using namespace System::Runtime::Remoting::Messaging;
using namespace System::Security::Principal;
using namespace System::Security::Permissions;

ref class LogicalCallContextData;

public ref class HelloServiceClass: public MarshalByRefObject
{
private:
   static int n_instances;
   int instanceNum;

public:
   HelloServiceClass()
   {
      n_instances++;
      instanceNum = n_instances;
      Console::WriteLine(  "{0} has been created.  Instance # = {1}", this->GetType()->Name, instanceNum );
   }

   ~HelloServiceClass()
   {
      Console::WriteLine( "Destroyed instance {0} of HelloServiceClass.", instanceNum );
   }

   [SecurityPermissionAttribute(SecurityAction::Demand, Flags=SecurityPermissionFlag::Infrastructure)]
   String^ HelloMethod( String^ name )
   {
      //Extract the call context data
      LogicalCallContextData^ data = dynamic_cast<LogicalCallContextData^>(CallContext::GetData( "test data" ));
      IPrincipal^ myPrincipal = data->Principal;

      //Check the user identity
      if ( myPrincipal->Identity->Name == "Bob" )
      {
         Console::WriteLine( "\nHello {0}, you are identified!", myPrincipal->Identity->Name );
         Console::WriteLine( data->numOfAccesses );
      }
      else
      {
         Console::WriteLine( "Go away! You are not identified!" );
         return String::Empty;
      }

      // calculate and return result to client    
      return String::Format( "Hi there {0}.", name );
   }
};

using System;
using System.Text;
using System.Runtime.Remoting.Messaging;
using System.Security.Principal;
using System.Security.Permissions;

public class HelloServiceClass : MarshalByRefObject {

   static int n_instances;
   int instanceNum;

   public HelloServiceClass() {
      n_instances++;
      instanceNum = n_instances;
      Console.WriteLine(this.GetType().Name + " has been created.  Instance # = {0}", instanceNum);
   }

   ~HelloServiceClass() {
      Console.WriteLine("Destroyed instance {0} of HelloServiceClass.", instanceNum);
   }

   public String HelloMethod(String name) {

      //Extract the call context data
      LogicalCallContextData data = (LogicalCallContextData)CallContext.GetData("test data");
      IPrincipal myPrincipal = data.Principal;

      //Check the user identity
      if(myPrincipal.Identity.Name == "Bob") {
         Console.WriteLine("\nHello {0}, you are identified!", myPrincipal.Identity.Name);
         Console.WriteLine(data.numOfAccesses);
      }
      else {
         Console.WriteLine("Go away! You are not identified!");
         return String.Empty;
      }

        // calculate and return result to client	
      return "Hi there " + name + ".";
   }
}

Imports System.Text
Imports System.Runtime.Remoting.Messaging
Imports System.Security.Principal
Imports System.Security.Permissions

Public Class HelloServiceClass
   Inherits MarshalByRefObject
   
   Private Shared n_instances As Integer
   Private instanceNum As Integer  
   
   Public Sub New()
      n_instances += 1
      instanceNum = n_instances
      Console.WriteLine(Me.GetType().Name + " has been created.  Instance # = {0}", instanceNum)
   End Sub

   
   Protected Overrides Sub Finalize()
      Console.WriteLine("Destroyed instance {0} of HelloServiceClass.", instanceNum)
      MyBase.Finalize()
   End Sub
  
   <PermissionSet(SecurityAction.LinkDemand)> _
   Public Function HelloMethod(name As [String]) As [String]
      
      'Extract the call context data
      Dim data As LogicalCallContextData = CType(CallContext.GetData("test data"), LogicalCallContextData)
      Dim myPrincipal As IPrincipal = data.Principal
      
      'Check the user identity
      If myPrincipal.Identity.Name = "Bob" Then
         Console.WriteLine()
         Console.WriteLine("Hello {0}, you are identified!", myPrincipal.Identity.Name)
         Console.WriteLine(data.numOfAccesses)
      Else
         Console.WriteLine("Go away! You are not identified!")
         Return [String].Empty
      End If
      
      ' calculate and return result to client	
      Return "Hi there " + name + "."
   End Function 'HelloMethod

End Class

적용 대상