public void AddDelegate(ActivityDelegate activityDelegate, object origin)
{
ThrowIfDisposed();
ActivityUtilities.ValidateOrigin(origin, _activity);
if (activityDelegate != null)
{
_activity.AddDelegate(activityDelegate);
if (activityDelegate.Handler != null && activityDelegate.Handler.CacheId != _activity.CacheId)
{
activityDelegate.Handler.Origin = origin;
}
// We don't currently have ActivityDelegate.Origin. If we ever add it, or if we ever
// expose Origin publicly, we need to also set it here.
}
}