public static void main(String[] args) {
System.out.println("hello server");
init();
if (args.length > 0) {
if (args[0].equalsIgnoreCase("active")) {
startServerMode();
}
if (args[0].equalsIgnoreCase("join")) {
join();
}
if (args[0].equalsIgnoreCase("leave")) {
leave();
}
} else {
System.out.println("looing for existing active server...");
findActive();
if (remoteServer == null) {
startServerMode();
} else {
startClientMode();
}
}
}
private static void electNewActive() {
remoteServer = null;
init();
int total = clientModeConnection.getServerCount();
System.out.println(total);
int tempActiveIndex = (activeServerIndex + 1) % total;
int wait = clientModeConnection.getWaitTime() * 1000;
System.out.println("Active Server " + activeServerIndex + " failed, electing new server");
while (tempActiveIndex != selfIndex) {
System.out.println("trying to connect to server" + tempActiveIndex);
try {
Thread.sleep(wait);
} catch (InterruptedException ex) {
}
remoteServer = clientModeConnection.connectTo(tempActiveIndex);
if (remoteServer != null) {
break;
} else {
tempActiveIndex = (tempActiveIndex + 1) % total;
}
}
if (remoteServer == null) {
findActive();
if (remoteServer == null) {
startServerMode();
} else {
startClientMode();
}
} else {
startClientMode();
}
}
private static void join() {
System.out.println("Joining server group...");
Properties newRMIconfig = localServer.getRmiSettings();
findActive();
if (remoteServer != null) {
try {
String tempselfName = remoteServer.serverJoin(newRMIconfig.getProperty("publicIP"));
if (tempselfName != null) {
selfName = tempselfName;
newRMIconfig.setProperty("name", selfName);
try {
PropertyHandler.save(RMI_CONFIG_FILE, newRMIconfig);
init();
} catch (Exception ex) {
System.out.println("save rmiserver config failed");
}
System.out.println("You have joined the server group of " + remoteServer.getServerName());
} else {
System.out.println("you are already in the group of " + remoteServer.getServerName());
}
} catch (RemoteException ex) {
System.out.println("no active server");
System.exit(1);
}
startClientMode();
} else {
System.out.println("no active server");
System.exit(1);
}
}