Changeset 3007

Timestamp:

03/12/10 09:45:45 (15 years ago)

Author:

epitzer

Message:

more descriptive persistence error message (#548)

File:

• trunk/sources/HeuristicLab.Persistence/3.3/Core/Serializer.cs (modified) (6 diffs)

trunk/sources/HeuristicLab.Persistence/3.3/Core/Serializer.cs

@@ -10 +10 @@
 using System.Reflection;
 using System.IO;
+using System.Diagnostics;
 
 namespace HeuristicLab.Persistence.Core {
@@ -140 +141 @@
     }
 
+    private Stack<string> objectGraphTrace = new Stack<string>();
+
     private IEnumerator<ISerializationToken> Serialize(DataMemberAccessor accessor) {
+      
       object value = accessor.Get();
       if (value == null)
@@ -159 +163 @@
       }
       try {
+        objectGraphTrace.Push(accessor.Name);
         IPrimitiveSerializer primitiveSerializer = configuration.GetPrimitiveSerializer(type);
         if (primitiveSerializer != null)
@@ -182 +187 @@
           return new List<ISerializationToken>().GetEnumerator();
         } else {
-          throw x;
-        }
+          throw;
+        }
+      } finally {
+        objectGraphTrace.Pop();
       }
     }
@@ -191 +198 @@
       sb.Append("Could not determine how to serialize a value of type \"")
         .Append(type.VersionInvariantName())
-        .AppendLine("\"");
-      sb.AppendLine("No registered primitive serializer for this type:");
+        .AppendLine("\"")
+        .Append("object graph location: ")
+        .AppendLine(string.Join(".", objectGraphTrace.ToArray()))
+        .AppendLine("No registered primitive serializer for this type:");
       foreach (var ps in configuration.PrimitiveSerializers)
         sb.Append(ps.SourceType.VersionInvariantName())
@@ -205 +214 @@
           .Append(cs.GetType().VersionInvariantName())
           .AppendLine(")");
-      return new PersistenceException(sb.ToString());              
+      return new PersistenceException(sb.ToString());
     }