/**
* Metoda, která načte ze zadaného umístění topologii sítě routerů
*
* @throws IOException
*/
public static void loadTopology(OspfModel model, BufferedReader input) throws IOException {
BufferedReader vstup = null;
String radek = "";
Pattern ipPattern = Pattern.compile(patternIP);
Matcher ipMatcher = null;
Pattern maskPattern = Pattern.compile(patternMask);
Matcher maskMatcher = null;
vstup = input;
while ((radek = vstup.readLine()) != null) {
if (radek.contains("Link State ID")) {
String linkName = "";
int linkMask = 0;
ipMatcher = ipPattern.matcher(radek);
ipMatcher.find();
linkName = ipMatcher.group(0);
while (!((radek = vstup.readLine()).contains("Network Mask"))) {}
maskMatcher = maskPattern.matcher(radek);
maskMatcher.find();
linkMask = Integer.valueOf(maskMatcher.group(1));
Link l = new Link();
l.setLinkIDv4(linkName);
l.setSubnetMask(linkMask);
model.getLinks().add(l);
// čtení řádků než narazí na Attached Router
while (!((radek = vstup.readLine()).contains("Attached Router"))) {}
// načtení první IP jdoucí do spoje
ipMatcher = ipPattern.matcher(radek);
ipMatcher.find();
model.addRouter(ipMatcher.group(0));
// načtení zbylých IP jdoucích do spoje
while ((radek = vstup.readLine()).contains("Attached Router")) {
ipMatcher = ipPattern.matcher(radek);
ipMatcher.find();
model.addRouter(ipMatcher.group(0));
}
}
}
}
public static void getTopologyFromData(OspfModel model, BufferedReader input)
throws NumberFormatException, IOException {
try {
// zapis dat do souboru
// BufferedWriter out = new BufferedWriter(new FileWriter("out.txt"));
// String s;
// BufferedReader input2 = new BufferedReader(input);
// while ((s = input2.readLine()) != null) {
// out.write(s + "\n");
// System.out.println(s);
// }
// out.close();
OspfModel modelIPv6 = new OspfModel();
String routerId = null;
String routerName = null;
String linkStateId = null;
String linkId = null;
String linkData = null;
String linkName = null;
String router = null;
String neighborInterface = null;
String neighborRouter = null;
String advRouter = null;
int metricType = -1;
int cost = -1;
int mask = -1;
int numberOfLinks;
String radek = null;
Pattern ipPattern = Pattern.compile(patternIP);
Pattern maskPattern = Pattern.compile(patternMask);
Pattern costPattern = Pattern.compile(patternCost);
Pattern namePattern = Pattern.compile(patternName);
Pattern nameArpaPatern = Pattern.compile(patternNameArpa);
Pattern geoPattern = Pattern.compile(patternGeo);
GeoCoordinatesTransformator geoCoorTransormator = new GeoCoordinatesTransformator();
Matcher matcher = null;
// prikazy
String cmd1 = "Net Link States"; // "show ip ospf database network"
String cmd2 = "Router Link States"; // "show ip ospf database router"
String cmd3 = "AS External Link States"; // "show ip ospf database external"
// String cmd4 = "show ipv6 ospf6 database network detail";
// String cmd5 = "show ipv6 ospf6 database router detail";
String cmd6 =
"AS Scoped Link State Database"; // "show ipv6 ospf6 database as-external detail"
String cmd7 = "Area Scoped Link State Database"; // pozdeji bude urceno a jaka data jde
String cmd8 = "router names"; // nacitani nazvu routeru
String cmd9 = "geo positions"; // nacitani geo souradnic routeru
boolean isStub = false;
int cmd = 0;
while ((radek = input.readLine()) != null) {
if (radek.contains(cmd1)) {
cmd = 1;
continue;
}
if (radek.contains(cmd2)) {
cmd = 2;
continue;
}
if (radek.contains(cmd3)) {
cmd = 3;
continue;
}
if (radek.contains(cmd6)) {
cmd = 6;
continue;
}
if (radek.contains(cmd7)) {
cmd = 7;
continue;
}
if (radek.contains(cmd8)) {
cmd = 8;
continue;
}
if (radek.contains(cmd9)) {
cmd = 9;
continue;
}
switch (cmd) {
case 1:
// nacitani topologie pro IPv4
if (radek.contains("Link State ID")) {
int linkMask = 0;
matcher = ipPattern.matcher(radek);
matcher.find();
linkName = matcher.group(0);
while (!((radek = input.readLine()).contains("Network Mask"))) ;
matcher = maskPattern.matcher(radek);
matcher.find();
linkMask = Integer.valueOf(matcher.group(1));
Link l = new Link();
l.setLinkIDv4(linkName);
l.setSubnetMask(linkMask);
model.getLinks().add(l);
// čtení řádků než narazí na Attached Router
while (!((radek = input.readLine()).contains("Attached Router"))) ;
// načtení první IP jdoucí do spoje
matcher = ipPattern.matcher(radek);
matcher.find();
model.addRouter(matcher.group(0));
// načtení zbylých IP jdoucích do spoje
while ((radek = input.readLine()).contains("Attached Router")) {
matcher = ipPattern.matcher(radek);
matcher.find();
model.addRouter(matcher.group(0));
}
}
break;
case 2:
// nacitani dodatecnych dat pro IPv4
if (radek.contains("Link State ID")) {
matcher = ipPattern.matcher(radek);
matcher.find();
linkStateId = matcher.group(0);
while (!((radek = input.readLine()).contains("Number of Links"))) ;
matcher = costPattern.matcher(radek);
matcher.find();
numberOfLinks = Integer.valueOf(matcher.group(1));
for (int i = 0; i < numberOfLinks; i++) {
while (!(radek = input.readLine()).contains("Link connected to")) ;
isStub = radek.endsWith("Stub Network");
while (!(radek = input.readLine()).contains("(Link ID)")) ;
matcher = ipPattern.matcher(radek);
matcher.find();
linkId = matcher.group(0);
while (!(radek = input.readLine()).contains("(Link Data)")) ;
matcher = ipPattern.matcher(radek);
matcher.find();
linkData = matcher.group(0);
while (!(radek = input.readLine()).contains("TOS 0 Metric")) ;
matcher = costPattern.matcher(radek);
matcher.find();
cost = Integer.valueOf(matcher.group(1));
if (isStub) {
model.addStubNetwork(linkStateId, linkId, IpCalculator.getMask(linkData), cost);
} else {
model.updateCost(linkId, linkStateId, linkData, cost);
}
}
}
break;
case 3:
// nacitani externich LSA a jejich masek
if (radek.contains("Link State ID")) {
matcher = ipPattern.matcher(radek);
matcher.find();
linkName = matcher.group(0);
while (!(radek = input.readLine()).contains("Advertising Router")) ;
matcher = ipPattern.matcher(radek);
matcher.find();
advRouter = matcher.group(0);
while (!(radek = input.readLine()).contains("Network Mask")) ;
matcher = maskPattern.matcher(radek);
matcher.find();
mask = Integer.valueOf(matcher.group(1));
while (!(radek = input.readLine()).contains("Metric Type")) ;
matcher = costPattern.matcher(radek);
matcher.find();
metricType = Integer.valueOf(matcher.group(1));
while (!(radek = input.readLine()).contains("Metric")) ;
matcher = costPattern.matcher(radek);
matcher.find();
cost = Integer.valueOf(matcher.group(1));
ExternalLSA exLsa = new ExternalLSA();
exLsa.setMask(mask);
exLsa.setCost(cost);
exLsa.setMetricType(metricType);
exLsa.setNetwork(linkName);
// TODO zjistit proc se router nenajde
if (model.getRouterByIp(advRouter) != null) {
model.getRouterByIp(advRouter).getExternalLsa().add(exLsa);
}
}
break;
case 4:
// nacitani topologie pro IPv6
if (radek.contains("Link State ID")) {
int linkMask = 0;
matcher = ipPattern.matcher(radek);
matcher.find();
linkName = matcher.group(0);
Link l = new Link();
l.setLinkIDv6(linkName);
l.setSubnetMask(linkMask);
modelIPv6.getLinks().add(l);
while (!((radek = input.readLine()).contains("Attached Router"))) ;
// načtení první IP jdoucí do spoje
matcher = ipPattern.matcher(radek);
matcher.find();
modelIPv6.addRouter(matcher.group(0));
// načtení zbylých IP jdoucích do spoje
while ((radek = input.readLine()).contains("Attached Router")) {
matcher = ipPattern.matcher(radek);
matcher.find();
modelIPv6.addRouter(matcher.group(0));
}
}
break;
case 5:
// nacitani dodatecnych dat pro IPv6
if (radek.contains("Advertising Router")) {
matcher = ipPattern.matcher(radek);
matcher.find();
router = matcher.group(0);
} else if (radek.contains("Transit-Network Metric")) {
matcher = costPattern.matcher(radek);
matcher.find();
cost = Integer.valueOf(matcher.group(1));
} else if (radek.contains("Neighbor Interface ID")) {
matcher = ipPattern.matcher(radek);
matcher.find();
neighborInterface = matcher.group(0);
} else if (radek.contains("Neighbor Router ID")) {
matcher = ipPattern.matcher(radek);
matcher.find();
neighborRouter = matcher.group(0);
// linkId, router, 2.router, cena
modelIPv6.updateCostIPv6(neighborInterface, router, neighborRouter, cost);
}
break;
case 6:
// nacitani externich lsa a masky pro IPv6
if (radek.contains("Advertising Router")) {
matcher = ipPattern.matcher(radek);
matcher.find();
advRouter = matcher.group(0);
} else if (radek.contains("Metric")) {
matcher = costPattern.matcher(radek);
matcher.find();
cost = Integer.valueOf(matcher.group(1));
} else if (radek.contains("Prefix") && !radek.contains("Options")) {
linkName = radek.substring(radek.indexOf(':') + 2, radek.indexOf('/'));
mask = Integer.valueOf(radek.substring(radek.indexOf('/') + 1));
ExternalLSA exLsa = new ExternalLSA();
exLsa.setMask(mask);
exLsa.setCost(cost);
exLsa.setNetwork(linkName);
if (model.getRouterByIp(advRouter) != null) {
model.getRouterByIp(advRouter).getExternalLsa().add(exLsa);
} else if (modelIPv6.getRouterByIp(advRouter) != null) {
modelIPv6.getRouterByIp(advRouter).getExternalLsa().add(exLsa);
} else {
System.err.println("OspfLoader - Router nenalezen");
}
}
break;
case 7:
if (radek.contains("Type: Network")) {
cmd = 4;
} else if (radek.contains("Type: Router")) {
cmd = 5;
}
break;
case 8:
// nacitani nazvu routeru
boolean matches = false;
matcher = namePattern.matcher(radek);
matcher.find();
if (matcher.matches()) {
// matcher dle stareho tvaru zapisu id routeru a jeho nazvu
matches = true;
routerId = matcher.group(1);
routerName = matcher.group(2);
} else {
matcher = nameArpaPatern.matcher(radek);
matcher.find();
if (matcher.matches()) {
// matcher dle noveho tvaru zapisu id routeru a jeho nazvu z CGI
matches = true;
routerId = IpCalculator.getIpFromIpArpa(matcher.group(1));
routerName = matcher.group(3);
}
}
if (matches) {
// aspon jeden matcher nasel nazev routeru, najdi ho a pridej
for (Router r : model.getRouters()) {
if (r.getId().equals(routerId) && !routerId.equals(routerName))
r.setName(routerName);
}
}
break;
case 9:
// nacitani geo souradnic
matcher = geoPattern.matcher(radek);
matcher.find();
if (matcher.matches()) {
model.setGpsLoaded(true);
Router r = model.getRouterByIp(matcher.group(1));
if (r != null) {
r.setGpsPosition(
geoCoorTransormator.transformJTSKToWGS(
Integer.valueOf(matcher.group(2)), Integer.valueOf(matcher.group(3))));
}
}
break;
}
}
// zacleneni IPv6 do puvodniho modelu kde je do teto doby pouze IPv4
// priznak zda jsou nacteny nejaky IPv6
model.setIpv6Loaded(!modelIPv6.getLinks().isEmpty());
// prochazeni spoju
boolean b = false;
for (Link l6 : modelIPv6.getLinks()) {
b = false;
for (Link l4 : model.getLinks()) {
if (l6.hasSameRouters(l4.getOspfLinkData())) {
b = true;
l4.setLinkIDv6(l6.getLinkIDv6());
for (OspfLinkData old6 : l6.getOspfLinkData()) {
OspfLinkData old4 = l4.getOspfLinkData(old6.getRouter().getId());
old4.setCostIPv6(old6.getCostIPv6());
}
continue;
}
}
if (!b) {
Link l = new Link();
l.setLinkIDv6(l6.getLinkIDv6());
for (OspfLinkData old : l6.getOspfLinkData()) {
Router r = model.getRouterByIp(old.getRouter().getId());
if (r == null) {
r = new Router(old.getRouter().getId());
model.getRouters().add(r);
}
OspfLinkData o = new OspfLinkData();
o.setCostIPv4(old.getCostIPv4());
o.setCostIPv6(old.getCostIPv6());
o.setRouter(model.getRouterByIp(old.getRouter().getId()));
o.setInterfaceIp(old.getInterfaceIp());
l.getOspfLinkData().add(o);
}
model.getLinks().add(l);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}