private void Callback_FleetStateUpdate(FleetStateDto fleetState)
{
FleetState = fleetState;
lock (kingpinStateMailboxes)
{
foreach (IKingpinState kingpinState in fleetState.KingpinStates)
{
KingpinStateMailbox mailbox = kingpinStateMailboxes.FirstOrDefault(e => e.Key.Equals(kingpinState.IPAddress));
if (mailbox != null)
{
mailbox.Update(kingpinState);
}
else
{
KingpinStateMailbox mailBox = new KingpinStateMailbox(kingpinState.IPAddress, kingpinState);
kingpinStateMailboxes.Add(mailBox);
OnAdded(mailBox);
}
}
IEnumerable <IPAddress> activeIP = fleetState.KingpinStates.Select(e => e.IPAddress);
IEnumerable <IPAddress> deadIP = kingpinStateMailboxes.Select(e => e.Key).Except(activeIP).ToList();
foreach (IPAddress ipAddress in deadIP)
{
KingpinStateMailbox deadMailBox = kingpinStateMailboxes.First(e => e.Key == ipAddress);
kingpinStateMailboxes.Remove(deadMailBox);
OnRemoved(deadMailBox);
}
}
}
private void OnRemoved(KingpinStateMailbox kingpinStateMailbox)
{
Action <KingpinStateMailbox> handlers = Removed;
handlers?
.GetInvocationList()
.Cast <Action <KingpinStateMailbox> >()
.ForEach(e => e.BeginInvoke(kingpinStateMailbox, null, null));
}