From 738005f5dc84c81ae22446b717a4de89081ee703 Mon Sep 17 00:00:00 2001
From: Developer 02 <developer02@didaloghe.onmicrosoft.com>
Date: Thu, 5 Dec 2024 14:33:24 +0100
Subject: [PATCH] feat(RSACryptographerList): Die Ausgabe der Indexer-Methode
 ist nicht null und wirft eine Ausnahme, wenn sie nicht gefunden wird.

---
 .../Cryptographer/CryptographerExtensions.cs               | 7 +------
 .../Cryptographer/RSACryptographerList.cs                  | 4 +++-
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/DigitalData.Core.Security/Cryptographer/CryptographerExtensions.cs b/DigitalData.Core.Security/Cryptographer/CryptographerExtensions.cs
index 4452007..72f58e0 100644
--- a/DigitalData.Core.Security/Cryptographer/CryptographerExtensions.cs
+++ b/DigitalData.Core.Security/Cryptographer/CryptographerExtensions.cs
@@ -10,7 +10,7 @@
 
         public static TRSACryptographer Get<TRSACryptographer>(this IEnumerable<TRSACryptographer> cryptographers, string issuer, string audience) where TRSACryptographer : RSACryptographer
             => cryptographers.Where(c => c.Issuer == issuer && c.Audience == audience).SingleOrDefault()
-            ?? throw new InvalidOperationException($"No {cryptographers.GetTypeName()} found with Issuer: {issuer} and Audience: {audience}");
+            ?? throw new InvalidOperationException($"No {typeof(TRSACryptographer).GetType().Name.TrimStart('I')} found with Issuer: {issuer} and Audience: {audience}.");
 
         public static bool TryGet<TRSACryptographer>(this IEnumerable<TRSACryptographer> cryptographers, string issuer, string audience, out TRSACryptographer? cryptographer) where TRSACryptographer : RSACryptographer
         {
@@ -20,10 +20,5 @@
 
         public static RSACryptographerList<TRSACryptographer> ToCryptographerList<TRSACryptographer>(this IEnumerable<TRSACryptographer> cryptographers, Func<TRSACryptographer, string> keyGenerator) where TRSACryptographer : RSACryptographer
             => new(keyGenerator: keyGenerator, cryptographers: cryptographers);
-
-        private static string GetTypeName<TRSACryptographer>(this IEnumerable<TRSACryptographer> cryptographers) where TRSACryptographer : RSACryptographer
-            => typeof(TRSACryptographer).GetType().Name.TrimStart(InterfaceIdentifierChar);
-
-        private static readonly char InterfaceIdentifierChar = 'I';
     }
 }
\ No newline at end of file
diff --git a/DigitalData.Core.Security/Cryptographer/RSACryptographerList.cs b/DigitalData.Core.Security/Cryptographer/RSACryptographerList.cs
index e4c4272..f7ab7a7 100644
--- a/DigitalData.Core.Security/Cryptographer/RSACryptographerList.cs
+++ b/DigitalData.Core.Security/Cryptographer/RSACryptographerList.cs
@@ -15,7 +15,9 @@ namespace DigitalData.Core.Security.Cryptographer
             _cryptographers = cryptographers;            
         }
 
-        public TRSACryptographer? this[string key] => _cryptographers.SingleOrDefault(crypt => _keyGenerator(crypt) == key);
+        public TRSACryptographer this[string key]
+            => _cryptographers.SingleOrDefault(crypt => _keyGenerator(crypt) == key)
+            ?? throw new InvalidOperationException($"No {typeof(TRSACryptographer).GetType().Name.TrimStart('I')} found with Key: {key}.");
 
         public IEnumerator<TRSACryptographer> GetEnumerator() => _cryptographers.GetEnumerator();