public ILink OnLinkTranslation(IUnderlayingNetworkLayer unl, EndPoint ep, IFrame frame)
{
try
{
var former = LinksTree.Find(ep, unl).GetDeviceId();
var dev = unl.Parser.Factory(frame, former) ?? unl.Parser;
if (ParserUtils.IsInvalidDeviceId(dev.GetDeviceId()))
{
return(null);
}
var link = LinksTree.GetOrCreate(dev, unl, ep, former);
if (LogCambioDeIp)
{
if (dev.GetDeviceId() != former)
{
STrace.Trace(GetType().FullName, dev.GetDeviceId(), String.Format("Detectado cambio de id: Former={0} Received={1} Address={2} Payload={3}", former, dev.GetDeviceId(), frame.RemoteAddressAsString, Encoding.ASCII.GetString(frame.Payload)));
}
if (!ep.Equals(link.EndPoint)) // el operador == siempre da falso por que solo compara la referencia y son 2 instancias distintas con los mismos datos!
{
STrace.Trace(GetType().FullName, dev.GetDeviceId(), String.Format("Detectado cambio de ip: FormerAddress={0} ReceivedAddress={1} DeviceId={2} Payload={3}", link.EndPoint, ep, dev.GetDeviceId(), Encoding.ASCII.GetString(frame.Payload)));
}
}
return(link);
}
catch (ObjectNotFoundException)
{
STrace.Debug(GetType().FullName, String.Format("Dispositivo no registrado: {0}", frame.PayloadAsString));
}
catch (Exception e)
{
STrace.Exception(GetType().FullName, e, String.Format("OnLinkTranslation: {0}", frame.PayloadAsString));
}
return(null);
}
public ILink Find(EndPoint ep, IUnderlayingNetworkLayer unl)
{
rwlock.EnterReadLock();
try
{
var link = links_table
.Where(route => ep.Equals(route.Value.EndPoint)) // el operador == siempre da falso por que solo compara la referencia y son 2 instancias distintas con los mismos datos!
.Select(route => route.Value)
.FirstOrDefault();
if (link != null)
{
link.UnderlayingNetworkLayer = unl;
link.Age = DateTime.Now;
//link.State = LinkStates.Active;
}
return(link);
}
finally
{
rwlock.ExitReadLock();
}
}
public ILink GetOrCreate(INode Device, IUnderlayingNetworkLayer unl, EndPoint ep, int formerEndPointId)
{
rwlock.EnterReadLock();
try
{
if (links_table.ContainsKey(Device.Id))
{
var link = links_table[Device.Id];
if (Device.Id == formerEndPointId)
{
link.EndPoint = ep;
}
return(link);
}
}
finally
{
rwlock.ExitReadLock();
}
rwlock.EnterWriteLock();
try
{
if (links_table.ContainsKey(Device.Id))
{
var link = links_table[Device.Id];
if (Device.Id == formerEndPointId)
{
link.EndPoint = ep;
}
return(link);
}
else
{
//limpiar otras referencias al endpoint
var linkedendpoints = links_table
.Where(route => ep.Equals(route.Value.EndPoint)) // el operador == siempre da falso por que solo compara la referencia y son 2 instancias distintas con los mismos datos!
.Select(route => route.Value)
.ToList();
foreach (var lep in linkedendpoints)
{
lep.EndPoint = null;
}
//crear el nuevo link para devolver
var link = new Link
{
Age = DateTime.Now,
State = LinkStates.New,
Device = Device,
UnderlayingNetworkLayer = unl,
EndPoint = ep,
};
links_table.Add(Device.Id, link);
return(link);
}
}
finally
{
rwlock.ExitWriteLock();
}
}
