Changeset 2980

Timestamp:

03/09/10 18:14:05 (15 years ago)

Author:

epitzer

Message:

add a new attribute for hooks to be called before serialization and after deserialization (#900)

Location:

trunk/sources/HeuristicLab.Persistence/3.3

Files:

• Default/CompositeSerializers/Storable/StorableHookAttribute.cs (added)
• Default/CompositeSerializers/Storable/StorableSerializer.cs (modified) (2 diffs)
• HeuristicLab.Persistence-3.3.csproj (modified) (1 diff)
• Tests/UseCases.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Persistence/3.3/Default/CompositeSerializers/Storable/StorableSerializer.cs

@@ -29 +29 @@
 
     public IEnumerable<Tag> CreateMetaInfo(object o) {
+      StorableHookAttribute.InvokeHook(HookType.BeforeSerialization, o);
       return new Tag[] { };
     }
@@ -48 +49 @@
         memberDict.Add(iter.Current.Name, iter.Current);
       }
-      foreach (var accessor in StorableAttribute.GetStorableAccessors(instance)) {        
+      foreach (var accessor in StorableAttribute.GetStorableAccessors(instance)) {
         if (memberDict.ContainsKey(accessor.Name)) {
-          accessor.Set(memberDict[accessor.Name].Value);          
+          accessor.Set(memberDict[accessor.Name].Value);
         } else if (accessor.DefaultValue != null) {
-          accessor.Set(accessor.DefaultValue);          
+          accessor.Set(accessor.DefaultValue);
         }
       }
+      StorableHookAttribute.InvokeHook(HookType.AfterDeserialization, instance);
     }
   }

trunk/sources/HeuristicLab.Persistence/3.3/HeuristicLab.Persistence-3.3.csproj

@@ -121 +121 @@
     <Compile Include="Default\CompositeSerializers\Storable\EmptyStorableClassAttribute.cs" />
     <Compile Include="Default\CompositeSerializers\Storable\StorableAttribute.cs" />
+    <Compile Include="Default\CompositeSerializers\Storable\StorableHookAttribute.cs" />
     <Compile Include="Default\CompositeSerializers\Storable\StorableSerializer.cs" />
     <Compile Include="Default\CompositeSerializers\StructSerializer.cs" />

trunk/sources/HeuristicLab.Persistence/3.3/Tests/UseCases.cs

@@ -659 +659 @@
     }
 
+    private class PersistenceHooks {
+      [Storable]
+      public int a;
+      [Storable]
+      public int b;
+      public int sum;
+      public bool WasSerialized { get; private set; }
+      [StorableHook(HookType.BeforeSerialization)]
+      void PreSerializationHook() {
+        WasSerialized = true;
+      }
+      [StorableHook(HookType.AfterDeserialization)]
+      void PostDeserializationHook() {
+        sum = a + b;
+      }
+    }
+
+    [TestMethod]
+    public void HookTest() {
+      PersistenceHooks hookTest = new PersistenceHooks();
+      hookTest.a = 2;
+      hookTest.b = 5;
+      Assert.IsFalse(hookTest.WasSerialized);
+      Assert.AreEqual(hookTest.sum, 0);
+      XmlGenerator.Serialize(hookTest, tempFile);
+      Assert.IsTrue(hookTest.WasSerialized);
+      Assert.AreEqual(hookTest.sum, 0);
+      PersistenceHooks newHookTest = (PersistenceHooks)XmlParser.Deserialize(tempFile);
+      Assert.AreEqual(newHookTest.a, hookTest.a);
+      Assert.AreEqual(newHookTest.b, hookTest.b);
+      Assert.AreEqual(newHookTest.sum, newHookTest.a + newHookTest.b);
+      Assert.IsFalse(newHookTest.WasSerialized);
+    }
+
     [ClassInitialize]
     public static void Initialize(TestContext testContext) {