Changeset 1625 for trunk/sources/HeuristicLab.Persistence/3.3/Default/Decomposers/TypeDecomposer.cs

Timestamp:

04/23/09 14:22:29 (15 years ago)

Author:

epitzer

Message:

Added PersistenceException used consistently for all error conditions in the persistence framework (#548)

File:

• trunk/sources/HeuristicLab.Persistence/3.3/Default/Decomposers/TypeDecomposer.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Persistence/3.3/Default/Decomposers/TypeDecomposer.cs

@@ -28 +28 @@
 
     public object CreateInstance(Type type, IEnumerable<Tag> metaInfo) {
-      foreach (var typeName in metaInfo) {
-        return Type.GetType((string)typeName.Value);
+      IEnumerator<Tag> it = metaInfo.GetEnumerator();
+      try {
+        it.MoveNext();
+      } catch (InvalidOperationException e) {
+        throw new PersistenceException("Insufficient meta information to instantiate Type object", e);
       }
-      return null;
+      try {
+        return Type.GetType((string)it.Current.Value, true);
+      } catch (InvalidCastException e) {
+        throw new PersistenceException("Invalid meta information during reconstruction of Type object", e);
+      } catch (TypeLoadException e) {
+        throw new PersistenceException(String.Format(
+          "Cannot load Type {0}, make sure all required assemblies are available.",
+          (string)it.Current.Value), e);
+      }
     }
 
     public void Populate(object instance, IEnumerable<Tag> objects, Type type) {
+      // Type ojects are populated during instance creation.
     }
   }