private async Task <RSATable> FillTable(RSATable table, Graph graph, Demand demand, List <GraphPath> paths)
{
bool filled = false;
foreach (var path in paths)
{
await InfoLogger.LogInformation($"trying path: {string.Join("->", path.Path)} distance: {path.ToLinks(graph.Links).Sum(r => r.Length)}");
List <AvailableSlot> availableTableSlots = GetAvailableTableSlots(graph, path, table);
if (RSATableFill.FillDemandOnTable(ref table, graph, demand, path, availableTableSlots))
{
filled = true;
await InfoLogger.LogInformation($"demand supplied\n");
await InfoLogger.LogInformation(table.ToStringTable());
supplied++;
break;
}
}
if (filled == false)
{
await InfoLogger.LogInformation($"It's not possible to supply demand of {demand.Slots} from {demand.NodeIdFrom} to {demand.NodeIdTo}\n");
}
return(table);
}
protected override async Task ApplyRSA(Graph graph, List <Demand> demands, int numberOfLinkChannels)
{
RSATable table = new RSATable(graph.Links, numberOfLinkChannels);
foreach (Demand demand in demands)
{
GraphNode nodeFrom = graph.Nodes.FirstOrDefault(r => r.Id == demand.NodeIdFrom);
GraphNode nodeTo = graph.Nodes.FirstOrDefault(r => r.Id == demand.NodeIdTo);
await InfoLogger.LogInformation($"processing demand from {demand.NodeIdFrom} to {demand.NodeIdTo} of {demand.DemandInGBps} gbps or {demand.Slots} slots\n");
List <GraphPath> paths = PathSearcher.GetPaths(graph, nodeFrom, nodeTo, 2);
if (paths.Count() == 0)
{
await InfoLogger.LogInformation($"path from {demand.NodeIdFrom} to {demand.NodeIdTo} not found.\n");
continue;
}
table = await FillTable(table, graph, demand, paths);
}
await InfoLogger.LogInformation($"Finished\n");
await InfoLogger.LogInformation($"Total Demands: {demands.Count}\nSupplied: {supplied}\nBlocked: {demands.Count - supplied}\n");
await InfoLogger.LogInformation(table.ToStringTable());
}
private async Task <RSATable> FillTable(RSATable table, Graph graph, Demand demand, List <Tuple <GraphPath, GraphPath> > paths)
{
bool filled = false;
foreach (var path in paths)
{
var tableMemory = table.CopyObject <RSATable>();
await InfoLogger.LogInformation($"trying main path: {string.Join("->", path.Item1.Path)} distance: {path.Item1.ToLinks(graph.Links).Sum(r=>r.Length)}");
List <AvailableSlot> availableTableSlots = base.GetAvailableTableSlots(graph, path.Item1, tableMemory);
if (RSATableFill.FillDemandOnTable(ref tableMemory, graph, demand, path.Item1, availableTableSlots))
{
availableTableSlots = GetAdditionalAvailableTableSlots(graph, path, tableMemory);
await InfoLogger.LogInformation($"trying secundary path: {string.Join("->", path.Item2.Path)} distance: {path.Item2.ToLinks(graph.Links).Sum(r => r.Length)}");
if (RSATableFill.FillDemandOnTable(ref tableMemory, graph, demand, path.Item2, availableTableSlots, true))
{
DemandSupplyMemory.Add(new DemandLinkPair(demand, path));
filled = true;
await InfoLogger.LogInformation($"demand supplied\n");
table = tableMemory;
await InfoLogger.LogInformation(table.ToStringTable());
supplied++;
break;
}
}
}
if (filled == false)
{
await InfoLogger.LogInformation($"It's not possible to supply demand of {demand.Slots} from {demand.NodeIdFrom} to {demand.NodeIdTo}\n");
}
return(table);
}
private List <AvailableSlot> GetAdditionalAvailableTableSlots(Graph graph, Tuple <GraphPath, GraphPath> path, RSATable table)
{
List <AvailableSlot> emptys = base.GetAvailableTableSlots(graph, path.Item2, table);
foreach (DemandLinkPair savedMainPath in this.DemandSupplyMemory)
{
if (HasOverrideLink(path.Item1, savedMainPath.TuplePaths.Item1))
{
continue;
}
foreach (GraphLink link in path.Item2.ToLinks(graph.Links))
{
AvailableSlot availableSlot = new AvailableSlot
{
Link = link,
Availables = table.Table[link.GetLinkId()].Where(r => r.Value.IsProtectionDemand && r.Value.Values.Count() == 1 && r.Value.Values.Contains(savedMainPath.Demand.Id.ToString())).Select(r => r.Key).ToList()
};
var reference = emptys.FirstOrDefault(r => r.Link.GetLinkId() == link.GetLinkId());
if (reference != null)
{
availableSlot.Availables.AddRange(reference.Availables);
emptys.Remove(reference);
}
emptys.Insert(0, availableSlot);
}
}
return(emptys);
}
protected virtual List <AvailableSlot> GetAvailableTableSlots(Graph graph, GraphPath path, RSATable table)
{
List <AvailableSlot> availableSlots = new List <AvailableSlot>();
List <GraphLink> pathLinks = path.ToLinks(graph.Links);
foreach (GraphLink link in pathLinks)
{
AvailableSlot element = new AvailableSlot();
element.Link = link;
element.Availables = new List <int>(table.Table[link.GetLinkId()].Where(r => r.Value.Values.Count == 0).Select(r => r.Key).ToList());
availableSlots.Add(element);
}
return(availableSlots);
}