private void SendGetContacts()
{
ActorSelection[] toSend;
if (_contacts.Length == 0)
toSend = _initialContactsSelections;
else if (_contacts.Length == 1)
toSend = _initialContactsSelections.Union(_contacts).ToArray();
else
toSend = _contacts;
if (Log.IsDebugEnabled)
Log.Debug("Sending GetContacts to [{0}]", string.Join(", ", toSend.AsEnumerable()));
foreach (var contact in toSend)
contact.Tell(ClusterReceptionist.GetContacts.Instance);
}