public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
Type ValueType = value.GetType();
Type DataType = WgContext.GetIfAction(ValueType) ?? WgContext.GetIfPredicate(ValueType);
GrainInfo Info = WgContext.InfoFromDelegate((Delegate)value, DataType);
serializer.Serialize(writer, Info);
}
// delegate deserialization
protected static Delegate DelegateFromInfo(GrainInfo Info, Func <Type, Type> DelTypeMaker)
{
if (Info == null)
{
return(null);
}
Assembly MethodAssembly = Assembly.Load(Info.MethodAssembly);
Type MethodClass = MethodAssembly.GetType(Info.MethodClass);
Assembly DataAssembly = Assembly.Load(Info.DataAssembly);
Type DataType = DataAssembly.GetType(Info.DataType);
Type ActionType = DelTypeMaker(DataType);
Delegate Proc = Delegate.CreateDelegate(ActionType, MethodClass, Info.MethodName, false, false);
return(Proc);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
GrainInfo Info = serializer.Deserialize <GrainInfo> (reader);
Delegate Proc = null;
Type DataType = null;
DataType = WgContext.GetIfAction(objectType);
if (objectType == typeof(Delegate) || DataType != null) // if Action<WgContext,T> or a generic delegate
{
Proc = WgContext.ActionForName(Info);
}
else
{
DataType = WgContext.GetIfPredicate(objectType); // if predicate
if (DataType != null)
{
Proc = WgContext.PredicateForName(Info);
}
}
return(Proc);
}
public static Delegate PredicateForName(GrainInfo Info)
{
Delegate Proc = DelegateFromInfo(Info, DT => typeof(Func <, ,>).MakeGenericType(typeof(WgContext), DT, typeof(bool)));
return(Proc);
}
public static Delegate ActionForName(GrainInfo Info)
{
Delegate Proc = DelegateFromInfo(Info, DT => typeof(Action <,>).MakeGenericType(typeof(WgContext), DT));
return(Proc);
}
