private void AddEdge(Topology.IGP.Link.Link Edge)
{
if (!this.Links.ContainsKey(Edge.SourceNode))
{
this.Links.Add(Edge.Id, Edge);
if (Edge.OperationalStatus)
{
var forwardEdge = new TaggedEdge <string, Topology.IGP.Link.Link>(Edge.SourceNode, Edge.TargetNode, Edge);
var backwardEdge = new TaggedEdge <string, Topology.IGP.Link.Link>(Edge.TargetNode, Edge.SourceNode, Edge);
this.Graph.AddEdge(forwardEdge);
this.Graph.AddEdge(backwardEdge);
this.EdgeCost.Add(forwardEdge, Convert.ToDouble(Edge.Rtt));
this.EdgeCost.Add(backwardEdge, Convert.ToDouble(Edge.Rtt));
}
}
}
public void LoadIGPTopology(Topology.IGP.Topology topology)
{
topology.Clear();
foreach (var record in GetIGPTopology())
{
var path = record.Values["p"].As <IPath>();
Dictionary <long, string> nodeDatabaseIds = new Dictionary <long, string>();
Dictionary <long, bool> pseudonodes = new Dictionary <long, bool>();
foreach (var node in path.Nodes)
{
string igpRouterIdentifier = TryGetNodePropertyAsString(node, "IGP_Router_Identifier");
if (!string.IsNullOrWhiteSpace(igpRouterIdentifier))
{
nodeDatabaseIds.Add(node.Id, igpRouterIdentifier);
Topology.Node.Node n = new Topology.Node.Node()
{
IgpRouterIdentifier = igpRouterIdentifier,
Psn = TryGetNodeProperty <int>(node, "psn"),
IPv4RouterIdentifier = TryGetNodePropertyAsString(node, "IPv4_Router_Identifier"),
NodeName = TryGetNodePropertyAsString(node, "Node_Name"),
FirstSeen = TryGetNodeProperty <long>(node, "First_Seen"),
LastEvent = TryGetNodeProperty <long>(node, "Last_Event"),
OperationalStatus = true
};
if (Regex.IsMatch(igpRouterIdentifier, @"^\d{12}$") && n.Psn == 0)
{
n.IsPseudonode = false;
n.NodeCost = 1;
pseudonodes.Add(node.Id, n.IsPseudonode);
}
else
{
if (Regex.IsMatch(igpRouterIdentifier, @"^\d{12}\d+$") && n.Psn != 0)
{
n.IsPseudonode = true;
n.NodeCost = 0;
pseudonodes.Add(node.Id, n.IsPseudonode);
}
}
topology.Update(n);
}
}
foreach (var link in path.Relationships)
{
Topology.IGP.Link.Link l = new Topology.IGP.Link.Link()
{
SourceNode = nodeDatabaseIds[link.StartNodeId],
TargetNode = nodeDatabaseIds[link.EndNodeId],
Asn = TryGetRelProperty <long>(link, "asn"),
MaximumLinkBandwidth = TryGetRelProperty <double>(link, "Maximum_Link_Bandwidth"),
MaximumReservableLinkBandwidth = TryGetRelProperty <double>(link, "Maximum_Reservable_Bandwidth"),
UnreservedBandwidth = TryGetRelPropertyAsArray <double>(link, "Unreserved_Bandwidth"),
Rtt = TryGetRelProperty <long>(link, "rtt"),
IPv4InterfaceAddress = TryGetRelPropertyAsString(link, "IPv4_Interface_Address"),
SharedRiskLinkGroups = TryGetRelPropertyAsArray <long>(link, "Shared_Risk_Link_Groups"),
FirstSeen = TryGetRelProperty <long>(link, "First_Seen"),
LastEvent = TryGetRelProperty <long>(link, "Last_Event"),
OperationalStatus = true
};
if (pseudonodes[link.StartNodeId] || pseudonodes[link.EndNodeId])
{
l.LinkCost = 0.5;
}
else
{
l.LinkCost = 1;
}
topology.Update(l);
}
}
}
