Changeset 16210 for branches/PersistenceReintegration/HeuristicLab.Persistence/4.0/Core/StorableTypeAttribute.cs

Timestamp:

10/03/18 17:48:20 (6 years ago)

Author:

jkarder

Message:

#2520: worked on new persistence

• added cache for different attributes
• refactored StorableTypeBoxTransformer
• implemented paths for Storable members
• implemented more unit tests

File:

• branches/PersistenceReintegration/HeuristicLab.Persistence/4.0/Core/StorableTypeAttribute.cs (modified) (3 diffs)

branches/PersistenceReintegration/HeuristicLab.Persistence/4.0/Core/StorableTypeAttribute.cs

@@ -21 +21 @@
 
 using System;
+using System.Collections.Generic;
 
 namespace HeuristicLab.Persistence {
-
   /// <summary>
   /// Mark a class to be considered by the <c>StorableSerializer</c>.
   /// </summary>
-  [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Interface | AttributeTargets.Enum | AttributeTargets.Delegate, Inherited = false, AllowMultiple = false)]
+  [AttributeUsage(
+    AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Interface | AttributeTargets.Enum | AttributeTargets.Delegate,
+    Inherited = false,
+    AllowMultiple = false
+  )]
   public sealed class StorableTypeAttribute : Attribute {
+    private static IDictionary<Type, StorableTypeAttribute> attributeCache = new Dictionary<Type, StorableTypeAttribute>();
 
-
+    #region Properties
     /// <summary>
     /// Specify how members are selected for serialization.
@@ -36 +41 @@
     public StorableMemberSelection MemberSelection { get; private set; }
 
+    /// <summary>
+    /// The GUID that identifies the type.
+    /// </summary>
+    /// <value>The GUID.</value>
     public Guid Guid { get; private set; }
+    #endregion
 
     /// <summary>
@@ -64 +74 @@
     /// <returns></returns>
     public static bool IsStorableType(Type type) {
-      object[] attribs = type.GetCustomAttributes(typeof(StorableTypeAttribute), false);
-      return attribs.Length > 0;
+      return GetStorableTypeAttribute(type) != null;
     }
 
     public static StorableTypeAttribute GetStorableTypeAttribute(Type type) {
-      return (StorableTypeAttribute)Attribute.GetCustomAttribute(type, typeof(StorableTypeAttribute), false);
+      StorableTypeAttribute attrib;
+
+      if (!attributeCache.TryGetValue(type, out attrib)) {
+        attrib = (StorableTypeAttribute)GetCustomAttribute(type, typeof(StorableTypeAttribute), false);
+        if (attrib != null) attributeCache[type] = attrib;
+      }
+
+      return attrib;
     }
-
   }
 }