PolicyLevel.Resolve(Evidence) Yöntem

Tanım

Ad Alanı:

System.Security.Policy

Bütünleştirilmiş Kod:

System.Security.Permissions.dll

Paket:

System.Security.Permissions v9.0.0-preview.4.24266.19

Kaynak:

PolicyLevel.cs

İlke düzeyinin kanıtını temel alarak ilkeyi çözümler ve sonuçta PolicyStatementelde edilen değerini döndürür.

public:
 System::Security::Policy::PolicyStatement ^ Resolve(System::Security::Policy::Evidence ^ evidence);

public System.Security.Policy.PolicyStatement Resolve (System.Security.Policy.Evidence evidence);

member this.Resolve : System.Security.Policy.Evidence -> System.Security.Policy.PolicyStatement

Public Function Resolve (evidence As Evidence) As PolicyStatement

Parametreler

evidence

Evidence

çözümlemek EvidencePolicyLeveliçin kullanılır.

Döndürülenler

PolicyStatement

Sonuçta elde edilen PolicyStatement.

Özel durumlar

PolicyException

İlke düzeyi, özel kullanım olarak işaretlenmiş birden çok eşleşen kod grubu içerir.

ArgumentNullException

evidence parametresidirnull.

Örnekler

Aşağıdaki kod yönteminin Resolve kullanımını gösterir. Bu kod örneği, sınıfı için PolicyLevel sağlanan daha büyük bir örneğin parçasıdır.

// Demonstrate the use of ResolvePolicy for the supplied evidence and a specified policy level.
void CheckEvidence( PolicyLevel^ pLevel, Evidence^ evidence )
{
   // Display the code groups to which the evidence belongs.
   Console::WriteLine( "\tResolvePolicy for the given evidence: " );
   IEnumerator^ codeGroup = evidence->GetEnumerator();
   while ( codeGroup->MoveNext() )
   {
      Console::WriteLine( "\t\t{0}", (dynamic_cast<CodeGroup^>(codeGroup->Current))->Name );
   }

   Console::WriteLine( "The current evidence belongs to the following root CodeGroup:" );

   // pLevel is the current PolicyLevel, evidence is the Evidence to be resolved.
   CodeGroup^ cg1 = pLevel->ResolveMatchingCodeGroups( evidence );
   Console::WriteLine( "{0} Level", pLevel->Label );
   Console::WriteLine( "\tRoot CodeGroup = {0}", cg1->Name );

   // Show how Resolve is used to determine the set of permissions that 
   // the security system grants to code, based on the evidence.
   // Show the granted permissions. 
   Console::WriteLine( "\nCurrent permissions granted:" );
   PolicyStatement^ pState = pLevel->Resolve( evidence );
   Console::WriteLine( pState->ToXml() );
   return;
}

// Demonstrate the use of ResolvePolicy for the supplied evidence and a specified policy level.
private static void CheckEvidence(PolicyLevel pLevel, Evidence evidence)
{
    // Display the code groups to which the evidence belongs.
    Console.WriteLine("\tResolvePolicy for the given evidence: ");
    IEnumerator codeGroup = evidence.GetEnumerator();
    while (codeGroup.MoveNext())
    {
        Console.WriteLine("\t\t" + ((CodeGroup)codeGroup.Current).Name);
    }
    Console.WriteLine("The current evidence belongs to the following root CodeGroup:");
    // pLevel is the current PolicyLevel, evidence is the Evidence to be resolved.
    CodeGroup cg1 = pLevel.ResolveMatchingCodeGroups(evidence);
    Console.WriteLine(pLevel.Label + " Level");
    Console.WriteLine("\tRoot CodeGroup = " + cg1.Name);

    // Show how Resolve is used to determine the set of permissions that 
    // the security system grants to code, based on the evidence.

    // Show the granted permissions. 
    Console.WriteLine("\nCurrent permissions granted:");
    PolicyStatement pState = pLevel.Resolve(evidence);
    Console.WriteLine(pState.ToXml().ToString());

    return;
}

' Demonstrate the use of ResolvePolicy for the supplied evidence and a specified policy level.
Private Overloads Shared Sub CheckEvidence(ByVal pLevel As PolicyLevel, ByVal evidence As Evidence)
    ' Display the code groups to which the evidence belongs.
    Console.WriteLine(ControlChars.Tab + "ResolvePolicy for the given evidence: ")
    Dim codeGroup As IEnumerator = evidence.GetEnumerator()
    While codeGroup.MoveNext()
        Console.WriteLine((ControlChars.Tab + ControlChars.Tab + CType(codeGroup.Current, CodeGroup).Name))
    End While
    Console.WriteLine("The current evidence belongs to the following root CodeGroup:")
    ' pLevel is the current PolicyLevel, evidence is the Evidence to be resolved.
    Dim cg1 As CodeGroup = pLevel.ResolveMatchingCodeGroups(evidence)
    Console.WriteLine((pLevel.Label + " Level"))
    Console.WriteLine((ControlChars.Tab + "Root CodeGroup = " + cg1.Name))

    ' Show how Resolve is used to determine the set of permissions that 
    ' the security system grants to code, based on the evidence.
    ' Show the granted permissions. 
    Console.WriteLine(ControlChars.Lf + "Current permissions granted:")
    Dim pState As PolicyStatement = pLevel.Resolve(evidence)
    Console.WriteLine(pState.ToXml().ToString())

    Return
End Sub

Açıklamalar

Resolve , ilke düzeyleri için temel ilke değerlendirme işlemidir. Giriş olarak bir dizi kanıt verildiğinde, bu yöntem kod gruplarının kökte başlayan ve eşleştikçe aşağı çalışan üyelik koşullarını sınar. Eşleşen kod gruplarından kaynaklanan izinlerin birleşimi, döndürülen bir PolicyStatement oluşturur.

Koda izinler verme konusunda güvenlik ilkesi, tüm geçerli ilke düzeyleri için çözümlenen ilke deyimlerini ve izinler için kod isteğini kullanır.