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package NET.worlds.network;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;
class ServerTracker {
private Hashtable<String, WorldServer> _serverHash = new Hashtable<String, WorldServer>();
private Vector<WorldServer> _pendingOpenServers = new Vector<WorldServer>();
private Vector<WorldServer> _activeServers = new Vector<WorldServer>();
private Vector<WorldServer> _pendingCloseServers = new Vector<WorldServer>();
private Galaxy _galaxy;
private ServerURL _serverURL;
protected ServerTracker(Galaxy parent) {
this._galaxy = parent;
this._serverURL = this._galaxy.getServerURL();
}
public synchronized WorldServer getServer(String StrServerURL) throws InvalidServerURLException {
if ((Galaxy.getDebugLevel() & 32) > 0) {
System.out.println("Galaxy.getServer(" + StrServerURL + ") from " + this._galaxy);
}
ServerURL serverURL = new ServerURL(StrServerURL);
WorldServer ws = null;
if (this._serverURL.getHost().equals(serverURL.getHost())) {
ws = this.getServer(this._activeServers, this);
if (ws == null) {
ws = this.getServer(this._pendingOpenServers, this);
}
}
if (ws == null) {
ws = this.findOrMake(serverURL, this);
}
ws.tmpRefCnt(this);
return ws;
}
protected WorldServer getActive(Object referrer) {
return this.getServer(this._activeServers, referrer);
}
protected synchronized WorldServer getServer(Vector<WorldServer> list, Object referrer) {
int lastServer = list.size() - 1;
if (lastServer >= 0) {
WorldServer ws = list.elementAt(lastServer);
ws.incRefCnt(referrer);
return ws;
} else {
return null;
}
}
private synchronized WorldServer findOrMake(ServerURL serverURL, Object referrer) throws InvalidServerURLException {
WorldServer ws = this._serverHash.get(serverURL.getHost());
if (ws == null) {
int _debugLevel = 0;
_debugLevel = Galaxy.getDebugLevel();
if ((_debugLevel & 32) > 0) {
System.out.println(" Creating new server of type=" + serverURL.getType() + ".");
}
try {
Class<?> wsClass = Class.forName("NET.worlds.network." + serverURL.getType());
ws = (WorldServer)wsClass.newInstance();
} catch (Exception var8) {
Exception e = var8;
if ((_debugLevel & 32) > 0) {
synchronized (System.out) {
System.out.println(" Exception during class creation.");
e.printStackTrace(System.out);
}
}
throw new InvalidServerURLException("Bad class: " + serverURL.getType());
}
this._serverHash.put(serverURL.getHost(), ws);
ws.initInstance(this._galaxy, serverURL);
} else if ((Galaxy.getDebugLevel() & 32) > 0) {
System.out.println(" Found old server.");
}
ws.incRefCnt(referrer);
return ws;
}
protected synchronized void swapServer(WorldServer oldServ, WorldServer newServ) {
String oldURL = oldServ.getServerURL().getHost();
assert oldURL.equals(newServ.getServerURL().getHost());
oldURL = oldServ.getServerURL().getHost();
this._serverHash.put(oldURL, newServ);
assert !this._activeServers.contains(oldServ);
}
protected synchronized boolean isActive() {
return this._activeServers.size() > 0 || this._pendingOpenServers.size() > 0 || this._pendingCloseServers.size() > 0;
}
protected synchronized boolean addPendingServer(WorldServer ws) {
if ((Galaxy.getDebugLevel() & 8) > 0) {
System.out.println(this._galaxy + ": addPendingServer(" + ws + ")");
System.out.println("\t_pendingOpen = " + this._pendingOpenServers);
System.out.println("\t_activeServers = " + this._activeServers);
System.out.println("\t_pendingClose = " + this._pendingCloseServers);
}
if (this._pendingOpenServers.indexOf(ws) < 0) {
this._pendingOpenServers.addElement(ws);
}
return this._pendingOpenServers.size() == 1 && this._activeServers.size() == 0 && this._pendingCloseServers.size() == 0;
}
protected synchronized boolean addActiveServer(WorldServer ws) {
if ((Galaxy.getDebugLevel() & 8) > 0) {
System.out.println(this._galaxy + ": addActiveServer(" + ws + ")");
System.out.println("\t_pendingOpen = " + this._pendingOpenServers);
System.out.println("\t_activeServers = " + this._activeServers);
System.out.println("\t_pendingClose = " + this._pendingCloseServers);
}
this._pendingOpenServers.removeElement(ws);
if (this._activeServers.indexOf(ws) < 0) {
this._activeServers.addElement(ws);
}
return this._activeServers.size() == 1 && this._pendingCloseServers.size() == 0;
}
protected synchronized boolean addClosingServer(WorldServer ws) {
if ((Galaxy.getDebugLevel() & 8) > 0) {
System.out.println(this._galaxy + ": addClosingServer(" + ws + ")");
System.out.println("\t_pendingOpen = " + this._pendingOpenServers);
System.out.println("\t_activeServers = " + this._activeServers);
System.out.println("\t_pendingClose = " + this._pendingCloseServers);
}
this._pendingOpenServers.removeElement(ws);
boolean wasActive = this._activeServers.removeElement(ws);
if (this._pendingCloseServers.indexOf(ws) < 0) {
this._pendingCloseServers.addElement(ws);
}
return wasActive && this._activeServers.size() == 0;
}
protected synchronized void markClosedServer(WorldServer ws) {
if ((Galaxy.getDebugLevel() & 8) > 0) {
System.out.println(this._galaxy + ": markClosedServer(" + ws + ")");
System.out.println("\t_pendingOpen = " + this._pendingOpenServers);
System.out.println("\t_activeServers = " + this._activeServers);
System.out.println("\t_pendingClose = " + this._pendingCloseServers);
}
this._pendingOpenServers.removeElement(ws);
this._pendingCloseServers.removeElement(ws);
this._activeServers.removeElement(ws);
}
protected synchronized void killServer(WorldServer ws) {
if ((Galaxy.getDebugLevel() & 8) > 0) {
System.out.println(this._galaxy + ": killServer(" + ws + ")");
System.out.println("\t_pendingOpen = " + this._pendingOpenServers);
System.out.println("\t_activeServers = " + this._activeServers);
System.out.println("\t_pendingClose = " + this._pendingCloseServers);
}
this._pendingOpenServers.removeElement(ws);
this._pendingCloseServers.removeElement(ws);
this._activeServers.removeElement(ws);
if (this._serverHash.get(ws.getServerURL().getHost()) == ws) {
this._serverHash.remove(ws.getServerURL().getHost());
} else {
System.out.println("DEBUG -- a server tried to murder another!");
System.out.println("Caller = " + ws);
System.out.println("Victim = " + this._serverHash.get(ws.getServerURL().getHost()));
new Exception().printStackTrace();
}
}
protected Enumeration<WorldServer> getAllServers() {
return this._serverHash.elements();
}
@Override
public String toString() {
return "ServerTracker[\n\t_pendingOpen = "
+ this._pendingOpenServers
+ "\n\t_activeServers = "
+ this._activeServers
+ "\n\t_pendingClose = "
+ this._pendingCloseServers
+ "\n]";
}
}
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