private void FlagRouters(string routerData)
{
string[] indices = routerData.Split('=')[1].Split(',');
foreach (string indexWithSpace in indices)
{
int index;
bool working;
if (indexWithSpace[1] == '!')
{
index = Convert.ToInt32(indexWithSpace.Substring(2));
working = false;
}
else
{
index = Convert.ToInt32(indexWithSpace.Substring(1));
working = true;
}
Router router = ConfigLoader.FindRouterAmongAll(index);
if (router != null)
{
router.working = working;
}
}
}
public void HandleClient(TcpClient client)
{
TcpClient MyClient = client;
NetworkStream stream = MyClient.GetStream();
StreamReader reader = new StreamReader(stream);
StreamWriter writer = new StreamWriter(stream);
try {
string request = reader.ReadLine();
string[] cut = request.Split(':');
if (cut[0].Equals("REGISTRATION") && cut[1].Equals("HOST"))
{
numOfHosts++;
foreach (Host h in ConfigLoader.GetHosts())
{
if (h.getIP() == cut[2])
{
lock (hostConnections) {
hostConnections.AddLast(new HostConnection(h, client, Convert.ToInt32(cut[3]), this, ncc));
}
writer.WriteLine("component:NONE;name:RegistrationResponse;succeeded:true");
writer.Flush();
GUIWindow.PrintLog("Host #" + cut[3] + "|" + cut[2] + "| has been registered");
break;
}
}
}
else if (cut[0].Equals("REGISTRATION") && cut[1].Equals("ROUTER"))
{
numOfRouters++;
foreach (Router r in ConfigLoader.GetRouters())
{
if (r.getIP() == cut[2])
{
lock (routerConnections) {
routerConnections.AddLast(new RouterConnection(r, client, Convert.ToInt32(cut[3]), this));
}
writer.WriteLine("REGISTRATION:OK");
writer.Flush();
GUIWindow.PrintLog("Router #" + cut[3] + "|" + cut[2] + "| has been registered");
break;
}
}
}
} catch (IOException) {
GUIWindow.PrintLog("One of the network nodes has been disconected");
}
}
static void Main(String[] args)
{
try {
args = Environment.GetCommandLineArgs();
new Thread(() => {
Thread.Sleep(1000);
try {
String config = String.Concat(File.ReadAllLines(args[1]));
ConfigLoader.loadConfig(config, args[2]);
//String config = String.Concat(File.ReadAllLines("./../../../../sharedResources/tsst_config.xml"));
//ConfigLoader.loadConfig(config, "1");
//String config = String.Concat(File.ReadAllLines("./../../../../sharedResources/tsst_config.xml"));
//ConfigLoader.loadConfig(config);
//String config = String.Concat(File.ReadAllLines(args[1]));
//ConfigLoader.LoadConfig(config, args[2]);
ncc = new NCC();
server = new Server(ncc);
if (ConfigLoader.ccID == 2)
{
interCCServer = new InterCcCommunicationServer(ncc);
}
else if (ConfigLoader.ccID == 1)
{
peerConnection = new PeerConnection(new TcpClient("localhost", 12500), true, ncc);
}
else
{
childConnection = new ChildConnection(new TcpClient("localhost", 12500), ncc);
}
GUIWindow.UpdateChannelTable();
}
catch (Exception e) {
GUIWindow.PrintLog(e.StackTrace);
}
}).Start();
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new GUIWindow());
}
catch (Exception ex) {
GUIWindow.PrintLog(ex.StackTrace);
}
}
public void HandleRequest(Dictionary <string, string> data)
{
switch (data["name"])
{
case "ConnectionRequest":
switch (data["layer"])
{
case "upper":
GUIWindow.PrintLog("CC: Received ConnectionRequest(" + data["routerX"] + ", " + data["routerY"] + ", " + data["speed"] + " Gb/s, InterDomainConnection: " + data["IDC"] + ") from NCC");
string networkCase = ConfigLoader.ccID == 3 ? "SN" : "FirstAS";
string message420 = "component:RC;name:RouteTableQuery;routerX:" + data["routerX"] + ";routerY:" + data["routerY"] + ";speed:" + data["speed"] + ";IDC:" + data["IDC"] + ";case:" + networkCase;
GUIWindow.PrintLog("CC: Sent RouteTableQuery(" + data["routerX"] + ", " + data["routerY"] + ", " + data["speed"] + " Gb/s, InterDomainConnection: " + data["IDC"] + ") to RC");
Program.rc.HandleRequest(Util.DecodeRequest(message420));
break;
case "lower":
GUIWindow.PrintLog("CC: Received ConnectionRequest(routerX: " + data["routerX"] + ", routerY: " + data["routerY"] + ", path:" + data["path"] + ") from parent CC");
List <int> routerID2 = new List <int>();
foreach (string id in data["path"].Split('-'))
{
routerID2.Add(Convert.ToInt32(id));
}
Host hostX2 = ConfigLoader.FindHostAmongAll(Convert.ToInt32(data["endPoint1"]));
Host hostY2 = ConfigLoader.FindHostAmongAll(Convert.ToInt32(data["endPoint2"]));
cachedPath = new Path(routerID2, hostX2, hostY2);
cachedPath.channelRange = data["channelRange"];
Tuple <HostConnection, HostConnection> connections2 = GetHostConnections(cachedPath);
Call call2 = new Call(Convert.ToInt32(data["connID"]), true, (ConfigLoader.ccID == 1 ? 2 : 1), cachedPath.throughSN, connections2.Item1, connections2.Item2, cachedPath);
NCC.callRegister.Add(Convert.ToInt32(data["connID"]), call2);
//GUIWindow.PrintLog("CC: Sent SendConnectionTables(" + data["path"] + ", " + data["connID"] + ") to RC");
Program.rc.HandleRequest(Util.DecodeRequest("name:SendConnectionTables;connID:" + data["connID"] + ";path:" + data["path"]));
break;
}
break;
case "ConnectionRequestResponse":
GUIWindow.PrintLog("CC: Received ConnectionRequestResponse() from child CC");
if (cachedScenario == 1)
{
//scenariusz 1
GUIWindow.PrintLog("CC: Sent PeerCoordinationResponse() to peer CC");
Program.peerConnection.SendMessage("component:CC;name:PeerCoordinationResponse");
}
else
{
//scenariusz 2
var decoded = Util.DecodeRequest(cachedMessage);
GUIWindow.PrintLog("CC: Sent PeerCoordination(routerX: " + decoded["routerX"] + ", routerY: " + decoded["routerY"] + ", path:" + decoded["path"] + ") to peer CC");
Program.peerConnection.SendMessage(cachedMessage);
}
break;
case "RouteTableQueryResponse":
//GUIWindow.PrintLog("Received RouteTableQueryResponse(" + data["path"] + ") from RC");
if (data["path"].Equals("null"))
{
GUIWindow.PrintLog("CC: Requested connection could not be established");
string message1 = "component:CC;name:ConnectionRequestResponse;succeeded:false";
GUIWindow.PrintLog("CC: Sent ConnectionRequestResponse(SUCCEEDED: false) to NCC");
Program.ncc.HandleRequest(Util.DecodeRequest(message1), null);
break;
}
//tutaj wysyłamy LRMom request o alokacje, potem PeerCoordination jeśli to połączenie IDC
bool throughSN = ConfigLoader.ccID == 1 ? false : RC.currentPath.throughSN;
Tuple <HostConnection, HostConnection> connections = GetHostConnections(RC.currentPath);
Call call = new Call(RC.currentConnectionID, Convert.ToBoolean(RC.cachedData["IDC"]), ConfigLoader.ccID, throughSN, connections.Item1, connections.Item2, RC.currentPath);
NCC.callRegister.Add(RC.currentConnectionID, call);
//GUIWindow.PrintLog("CC: Sent LinkConnectionRequest(" + RC.cachedData["channelRange"] + ") to internal LRM");
string message2 = "name:LinkConnectionRequest;type:internal;channelRange:" + RC.cachedData["channelRange"] + ";asType:first";
Program.lrm.HandleRequest(Util.DecodeRequest(message2));
break;
case "LinkConnectionRequestResponse":
switch (data["type"])
{
case "internal":
//GUIWindow.PrintLog("CC: Received LinkConnectionRequestResponse() from internal LRM");
if (data["asType"].Equals("second"))
{
if (cachedPath.throughSN && ConfigLoader.ccID == 2)
{
//tu jeszcze external LinkConnectionRequest
string message3 = "name:LinkConnectionRequest;type:external;respond:false;channelRange:" + cachedPath.channelRange;
Program.lrm.HandleRequest(Util.DecodeRequest(message3));
GUIWindow.PrintLog("External LRM: Sent LinkConnectionRequestResponse() to CC");
GUIWindow.PrintLog("CC: Received LinkConnectionRequestResponse() from External LRM");
var decoded = Util.DecodeRequest(cachedMessage);
cachedScenario = 1;
GUIWindow.PrintLog("CC: Sent ConnectionRequest(routerX: " + decoded["routerX"] + ", routerY: " + decoded["routerY"] + ", path:" + decoded["path"] + ") to child CC");
Program.parentConnection.SendMessage(cachedMessage);
}
else
{
//zwrotka do peera
GUIWindow.PrintLog("CC: Sent PeerCoordinationResponse() to peer CC");
Program.peerConnection.SendMessage("component:CC;name:PeerCoordinationResponse");
}
break;
}
else if (data["asType"].Equals("SN"))
{
//zwrotka do parent CC
GUIWindow.PrintLog("CC: Sent ConnectionRequestResponse() to parent CC");
Program.childConnection.SendMessage("component:CC;name:ConnectionRequestResponse");
break;
}
if (Convert.ToBoolean(RC.cachedData["IDC"]))
{
GUIWindow.PrintLog("CC: Sent LinkConnectionRequest(" + RC.cachedData["channelRange"] + ") to extrenal LRM");
string message3 = "name:LinkConnectionRequest;type:external;respond:true;channelRange:" + RC.cachedData["channelRange"];
Program.lrm.HandleRequest(Util.DecodeRequest(message3));
}
else
{
//connectionRequestResponse
string message1 = "component:CC;name:ConnectionRequestResponse;succeeded:true;connID:" + RC.currentConnectionID;
GUIWindow.PrintLog("CC: Sent ConnectionRequestResponse(SUCCEEDED: true, connectionID: " + RC.currentConnectionID + ") to NCC");
Program.ncc.HandleRequest(Util.DecodeRequest(message1), null);
}
break;
case "external":
GUIWindow.PrintLog("CC: Received LinkConnectionRequestResponse() from external LRM");
try {
string listOfRouters = "";
foreach (int router in RC.currentPath.routerIDs)
{
listOfRouters += router + "-";
}
listOfRouters = listOfRouters.Remove(listOfRouters.Length - 1, 1);
string message4 = "component:CC;name:PeerCoordination;connID:" + RC.currentConnectionID + ";routerX:" + RC.cachedData["routerX"] + ";routerY:" + RC.cachedData["routerY"]
+ ";routerIDs:" + listOfRouters + ";endPoint1:" + RC.currentPath.endPoints.Item1.GetHostID() + ";" + "endPoint2:" + RC.currentPath.endPoints.Item2.GetHostID()
+ ";path:" + listOfRouters + ";channelRange:" + RC.cachedData["channelRange"];
if (ConfigLoader.ccID == 1)
{
//robimy PeerCoordination
GUIWindow.PrintLog("CC: Sent PeerCoordination(routerX: " + RC.cachedData["routerX"] + ", routerY: " + RC.cachedData["routerY"] + ", path:" + listOfRouters + ") to peer CC");
Program.peerConnection.SendMessage(message4);
}
else if (ConfigLoader.ccID == 2)
{
cachedScenario = 2;
cachedMessage = message4;
GUIWindow.PrintLog("CC: Sent ConnectionRequest(routerX: " + RC.cachedData["routerX"] + ", routerY: " + RC.cachedData["routerY"] + ", path:" + listOfRouters + ") to child CC");
Program.parentConnection.SendMessage(message4 + ";layer:lower;actualName:ConnectionRequest");
}
}
catch (Exception e) {
GUIWindow.PrintLog(e.Message);
GUIWindow.PrintLog(e.StackTrace);
}
break;
}
break;
case "PeerCoordination":
try {
GUIWindow.PrintLog("CC: Received " + data["actualName"] + "(routerX: " + data["routerX"] + ", routerY: " + data["routerY"] + ", path:" + data["path"] + ") from parent CC");
} catch (Exception) {
GUIWindow.PrintLog("CC: Received PeerCoordination(routerX: " + data["routerX"] + ", routerY: " + data["routerY"] + ", path:" + data["path"] + ") from peer CC");
}
List <int> routerID = new List <int>();
foreach (string id in data["path"].Split('-'))
{
routerID.Add(Convert.ToInt32(id));
}
Host hostX = ConfigLoader.FindHostAmongAll(Convert.ToInt32(data["endPoint1"]));
Host hostY = ConfigLoader.FindHostAmongAll(Convert.ToInt32(data["endPoint2"]));
cachedPath = new Path(routerID, hostX, hostY);
cachedPath.channelRange = data["channelRange"];
Tuple <HostConnection, HostConnection> connections1 = GetHostConnections(cachedPath);
//GUIWindow.PrintLog(connections1.Item1.ToString());
//GUIWindow.PrintLog(connections1.Item2.GetID().ToString());
Call call1 = new Call(Convert.ToInt32(data["connID"]), true, (ConfigLoader.ccID == 1 ? 2 : 1), cachedPath.throughSN, connections1.Item1, connections1.Item2, cachedPath);
NCC.callRegister.Add(Convert.ToInt32(data["connID"]), call1);
cachedMessage = "component:CC;name:ConnectionRequest;layer:lower;connID:" + data["connID"] + ";routerX:" + data["routerX"] + ";routerY:" + data["routerY"]
+ ";routerIDs:" + data["routerIDs"] + ";endPoint1:" + data["endPoint1"] + ";" + "endPoint2:" + data["endPoint2"] + ";path:"
+ data["path"] + ";channelRange:" + data["channelRange"];
//GUIWindow.PrintLog("CC: Sent SendConnectionTables(" + data["path"] + ", " + data["connID"] + ") to RC");
Program.rc.HandleRequest(Util.DecodeRequest("name:SendConnectionTables;connID:" + data["connID"] + ";path:" + data["path"]));
break;
case "PeerCoordinationResponse":
GUIWindow.PrintLog("CC: Received PeerCoordinationResponse() from peer CC");
GUIWindow.PrintLog("CC: Sent ConnectionRequestResponse() to NCC");
Program.ncc.HandleRequest(Util.DecodeRequest("name:ConnectionRequestResponse;succeeded:true;connID:" + RC.currentConnectionID), null);
break;
case "SendConnectionTablesResponse":
//GUIWindow.PrintLog("CC: Received SendConnectionTablesResponse() from RC");
try {
//GUIWindow.PrintLog("CC: Sent LinkConnectionRequest(" + cachedPath.channelRange + ") to internal LRM");
string message22 = "name:LinkConnectionRequest;type:internal;channelRange:" + cachedPath.channelRange + ";asType:" + (ConfigLoader.ccID == 3 ? "SN" : "second");
Program.lrm.HandleRequest(Util.DecodeRequest(message22));
} catch (Exception e) {
GUIWindow.PrintLog(e.Message);
GUIWindow.PrintLog(e.StackTrace);
}
break;
case "ConnectionTeardown":
if (ConfigLoader.ccID == 3)
{
//CHILD
GUIWindow.PrintLog("CC: Received ConnectionRequest(" + data["connectionID"] + ") from Parent CC");
Path path = NCC.callRegister[Int32.Parse(data["connectionID"])].GetPath();
//GUIWindow.PrintLog("CC: Sent SendConnectionTables(" + data["connectionID"] + ", " + path.ToString() + ", disconnect) to RC");
//GUIWindow.PrintLog("RC: Received SendConnectionTables(" + data["connectionID"] + ", " + path.ToString() + ", disconnect) from CC");
Program.rc.UpdateRoutingTables(path, Int32.Parse(data["connectionID"]), false, true);
//Program.rc.UpdateRoutingTables(path, Int32.Parse(data["connectionID"]), true, true);
//GUIWindow.PrintLog("RC: Sent SendConnectionTablesResponse() to CC : OK");
//GUIWindow.PrintLog("CC: Received SendConnectionTablesResponse() from RC : OK");
//GUIWindow.PrintLog("CC: Sent LinkConnectionInternalDeallocation(" + data["connectionID"] + ") to Internal LRM");
string message1 = "component:LRM;name:LinkConnectionInternalDeallocation;connectionID:" + data["connectionID"];
Program.lrm.HandleRequest(Util.DecodeRequest(message1));
}
else
{
GUIWindow.PrintLog("CC: Received ConnectionRequest(" + data["connectionID"] + ") from NCC"); // InterDomainConnection: " + data["IDC"]
Path path = NCC.callRegister[Int32.Parse(data["connectionID"])].GetPath();
//GUIWindow.PrintLog("CC: Sent SendConnectionTables(" + data["connectionID"] + ", " + path.ToString() + ", disconnect) to RC");
//GUIWindow.PrintLog("RC: Received SendConnectionTables(" + data["connectionID"] + ", " + path.ToString() + ", disconnect) from CC");
Program.rc.UpdateRoutingTables(path, Int32.Parse(data["connectionID"]), false, true);
//Program.rc.UpdateRoutingTables(path, Int32.Parse(data["connectionID"]), true, true);
//GUIWindow.PrintLog("RC: Sent SendConnectionTablesResponse() to CC : OK");
//GUIWindow.PrintLog("CC: Received SendConnectionTablesResponse() from RC : OK");
var element = NCC.callRegister[Int32.Parse(data["connectionID"])];
bool interDomainConnectionFlag = element.GetInterDomainConnectionFlag();
int asID = element.GetStartAsID();
if (interDomainConnectionFlag && asID == ConfigLoader.ccID)
{
GUIWindow.PrintLog("CC: Sent LinkConnectionExternalDeallocation(" + data["connectionID"] + ") to External LRM");
string message3 = "component:LRM;name:LinkConnectionExternalDeallocation;connectionID:" + data["connectionID"] + ";deleteChannels:true";
Program.lrm.HandleRequest(Util.DecodeRequest(message3));
}
else if (!interDomainConnectionFlag)
{
//GUIWindow.PrintLog("CC: Sent LinkConnectionInternalDeallocation(" + data["connectionID"] + ") to Internal LRM");
string message3 = "component:LRM;name:LinkConnectionInternalDeallocation;connectionID:" + data["connectionID"];
Program.lrm.HandleRequest(Util.DecodeRequest(message3));
}
else
{
GUIWindow.PrintLog("CC: Sent LinkConnectionExternalDeallocation(" + data["connectionID"] + ") to External LRM");
string message3 = "component:LRM;name:LinkConnectionExternalDeallocation;connectionID:" + data["connectionID"] + ";deleteChannels:false";
Program.lrm.HandleRequest(Util.DecodeRequest(message3));
}
}
break;
case "LinkConnectionExternalDeallocationResponse":
GUIWindow.PrintLog("CC: Received LinkConnectionExternalDeallocation(" + data["connectionID"] + ") from External LRM : OK");
//GUIWindow.PrintLog("CC: Sent LinkConnectionInternalDeallocation(" + data["connectionID"] + ") to Internal LRM");
string message = "component:LRM;name:LinkConnectionInternalDeallocation;connectionID:" + data["connectionID"];
Program.lrm.HandleRequest(Util.DecodeRequest(message));
break;
case "LinkConnectionInternalDeallocationResponse":
//GUIWindow.PrintLog("CC: Received LinkConnectionInternalDeallocationResponse(" + data["connectionID"] + ") from Internal LRM : OK");
if (NCC.callRegister[Int32.Parse(data["connectionID"])].GetThroughSubnetwork() && ConfigLoader.ccID == 2)
{
// PARENT
GUIWindow.PrintLog("CC: Sent ConnectionRequest(" + data["connectionID"] + ") to Child CC");
message = "component:CC;name:ConnectionTeardown;connectionID:" + data["connectionID"];
Program.parentConnection.SendMessage(message);
}
else if (ConfigLoader.ccID == 3)
{
// CHILD
GUIWindow.PrintLog("CC: Sent ConnectionRequestResponse(" + data["connectionID"] + ") to Parent CC : OK");
message = "component:CC;name:ConnectionTeardownResponse;connectionID:" + data["connectionID"];
Program.childConnection.SendMessage(message);
}
else
{
GUIWindow.PrintLog("CC: Sent ConnectionRequestResponse(" + data["connectionID"] + ") to NCC : OK");
message = "component:NCC;name:ConnectionTeardownResponse;connectionID:" + data["connectionID"];
Program.ncc.HandleRequest(Util.DecodeRequest(message), null);
}
break;
case "ConnectionTeardownResponse":
//Odpowiedz od CHILD
GUIWindow.PrintLog("CC: Received ConnectionRequestResponse(" + data["connectionID"] + ") from Child CC : OK");
GUIWindow.PrintLog("CC: Sent ConnectionRequestResponse(" + data["connectionID"] + ") to NCC : OK");
message = "component:NCC;name:ConnectionTeardownResponse;connectionID:" + data["connectionID"];
Program.ncc.HandleRequest(Util.DecodeRequest(message), null);
break;
}
}
private void CalculateAllPaths()
{
Node startingNode = ConfigLoader.GetNodeByIP(cachedData["routerX"]);
Node endingNode = ConfigLoader.GetNodeByIP(cachedData["routerY"]);
int speed = Convert.ToInt32(cachedData["speed"]);
Host startHost = null;
Host endingHost = null;
foreach (Host h in ConfigLoader.hosts)
{
if (startingNode == h.GetNeighborRouter())
{
startHost = h;
}
if (endingNode == h.GetNeighborRouter())
{
endingHost = h;
}
}
List <Path> paths = Algorithms.AllPaths(startHost, endingHost);
if (paths == null || paths.Count == 0)
{
//nie istnieje żadna ścieżka
GUIWindow.PrintLog("RC: Sent RouteTableQueryResponse(null) to CC");
Program.cc.HandleRequest(Util.DecodeRequest("component:CC;name:RouteTableQueryResponse;path:null"));
return;
}
Path chosenPath = null;
foreach (Path path in paths)
{
int[] pathsID = path.getEdges();
int n = DetermineGapNo(speed, path.GetLength());
//GUIWindow.PrintLog("Channel count: " + n);
int[,] LRMarray = GetLRMarray(pathsID);
int[] indexFromTo = EvaluatePath(n, LRMarray);
if (indexFromTo[0] != -1 && indexFromTo[1] != -1)
{
//GUIWindow.PrintLog("Test: n: " + n + " index from: " + indexFromTo[0] + " to " + indexFromTo[1]);
try {
cachedData.Add("channelRange", indexFromTo[0] + "-" + indexFromTo[1]);
} catch (Exception) {
cachedData["channelRange"] = indexFromTo[0] + "-" + indexFromTo[1];
}
chosenPath = path;
chosenPath.channelRange = indexFromTo[0] + "-" + indexFromTo[1];
break;
}
}
currentPath = chosenPath;
//GUIWindow.PrintLog("Path from Router" + startingNode.GetRouterID() + " to Router" + endingNode.GetRouterID() + " at " + speed + " Gb/s");
if (chosenPath == null)
{
GUIWindow.PrintLog("RC: Sent RouteTableQueryResponse(null) to CC");
Program.cc.HandleRequest(Util.DecodeRequest("component:CC;name:RouteTableQueryResponse;path:null"));
return;
}
int nextConnectionID = currentConnectionID + 1;
if (Convert.ToBoolean(cachedData["IDC"]))
{
nextConnectionID = Math.Max(nextConnectionID, Convert.ToInt32(cachedData["peerConnID"]) + 1);
}
currentConnectionID = nextConnectionID;
string pathString = (chosenPath == null ? "null" : chosenPath.ToString());
GUIWindow.PrintLog("RC: Sent RouteTableQueryResponse(" + pathString + ") to CC");
GUIWindow.PrintLog("CC: Received RouteTableQueryResponse(" + pathString + ") from RC");
UpdateRoutingTables(chosenPath, currentConnectionID, false, false);
UpdateRoutingTables(chosenPath, currentConnectionID, true, false);
string message = "component:CC;name:RouteTableQueryResponse;path:" + pathString;
Program.cc.HandleRequest(Util.DecodeRequest(message));
}
