Changeset 1316 for branches/New Persistence Exploration

Timestamp:

03/09/09 15:16:14 (16 years ago)

Author:

epitzer

Message:

added compound serializers for KeyValuePair and Dictionary. (#506)

File:

• branches/New Persistence Exploration/Persistence/Persistence/CompoundSerializers.cs (modified) (3 diffs)

branches/New Persistence Exploration/Persistence/Persistence/CompoundSerializers.cs

@@ -37 +37 @@
 
   public class ArraySerializer : ICompoundSerializer {
-
     public bool CanSerialize(Type type) {      
       return type.IsArray;
     }
-
     public IEnumerable Serialize(object array) {
       Array a = (Array)array;
@@ -52 +50 @@
       }
     }
-
     public object DeSerialize(IEnumerable elements, Type t) {
       IEnumerator e = elements.GetEnumerator();
@@ -78 +75 @@
       return a;
     }
-
   }
 
+  public class KeyValuePair2XmlSerializer : ICompoundSerializer {    
+    public bool CanSerialize(Type type) {
+      return type.IsGenericType &&
+        type.GetGenericTypeDefinition().Name == "KeyValuePair`2";
+    }
+    public IEnumerable Serialize(object o) {      
+      Type t = o.GetType();
+      yield return t.GetProperty("Key").GetValue(o, null);
+      yield return t.GetProperty("Value").GetValue(o, null);
+    }
+    public object DeSerialize(IEnumerable o, Type t) {
+      return Activator.CreateInstance(t,
+        new List<object>((IEnumerable<object>)o).ToArray());
+    }    
+  }
+
+  public class Dictionary2XmlSerializer : ICompoundSerializer {
+    public bool CanSerialize(Type type) {
+      return type.GetInterface("IDictionary") != null;        
+    }
+    public IEnumerable Serialize(object o) {
+      IDictionary dict = (IDictionary)o;      
+      foreach ( DictionaryEntry entry in dict) {
+        yield return entry.Key;
+        yield return entry.Value;
+      }
+    }
+    public object DeSerialize(IEnumerable o, Type t) {
+      IDictionary dict = (IDictionary)Activator.CreateInstance(t);
+      IEnumerator iter = o.GetEnumerator();
+      while (iter.MoveNext()) {
+        object key = iter.Current;
+        iter.MoveNext();
+        object value = iter.Current;
+        dict.Add(key, value);
+      }
+      return dict;
+    }
+  }
 
 }