次の方法で共有


PolicyLevel.Resolve(Evidence) メソッド

定義

ポリシー レベルの証拠に基づいてポリシーを解決し、結果として得られる PolicyStatement を返します。

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

パラメーター

evidence
Evidence

Evidence を解決するために使用する PolicyLevel

戻り値

結果として得られる PolicyStatement

例外

ポリシー レベルには、排他としてマークされた、複数の一致するコード グループが含まれます。

evidence パラメーターが null です。

次のコードは、 メソッドの使用方法を Resolve 示しています。 このコード例は、PolicyLevel クラスのために提供されている大規模な例の一部です。

// 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

注釈

Resolve は、ポリシー レベルの基本的なポリシー評価操作です。 一連の証拠を入力として指定すると、このメソッドは、ルートから始まり、一致したコード グループのメンバーシップ条件をテストします。 一致するコード グループから得られるアクセス許可の組み合わせによって、 PolicyStatement 返される が生成されます。

コードにアクセス許可を付与する際、セキュリティ ポリシーは、適用可能なすべてのポリシー レベルに対して解決されたポリシー ステートメントと、アクセス許可のコード要求を使用します。

適用対象