private void Observation(Common.Dto.Identity registrar, Common.Dto.Identity entity, Common.Dto.Observation message)
{
string registrationKey = Registration.Key.For(registrar, entity);
System.Diagnostics.Debug.WriteLine(string.Format("Client Received Message For: '{0}'", registrationKey));
Registration.IInstance registration;
if (_registrations.TryGetValue(registrationKey, out registration))
{
registration.Consumer.OnNext(message.AsMessage());
}
}