public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
{
var msg = new Message(binder, args);
Apply(msg);
result = null;
return true;
}
public virtual void Apply(Message msg)
{
var instances = Registry.InstancesForMessage(msg).ToArray();
foreach (var inst in instances.Where(x=> x is AR))
(inst as AR).Apply = this;
foreach (var inst in instances)
msg.InvokeOnInstanceIfPossible(inst, "Can");
foreach (var inst in instances)
msg.InvokeOnInstanceIfPossible(inst);
}
// this would intercept all messages before 2012/01/16 20:45
public IEnumerable<Message> InterceptMessagesBefore_2012_01_16_20_45(Message msg)
{
switch (msg.MethodName)
{
case "SomeMessage":
// meters to kilometers means divide old msgs length by 1000
yield return new Message(msg.MethodName,msg.Parameters.Substitute("Length",x=>x.Value/1000));
break;
case "AnotherMessage":
yield return new Message("AnotherBlah",msg.Parameters.Where(x=>x.Key == "TargetId"));
yield return new Message("AnotherBlah2",msg.Parameters.Where(x=>x.Key !="TargetId"));
break;
default:
yield return msg;
break;
}
}
// this would intercept all "Foo" messages before 2011/12/12 00:00
public IEnumerable<Message> InterceptFooMessagesBefore_2011_12_12_00_00(Message msg)
{
yield return new Message("Bar", msg.Parameters);
}