notify-on-start/src/main/java/cf/sobrooms/ServerUtils.java

package cf.sobrooms;

import org.bukkit.Bukkit;
import org.bukkit.Server;

import java.net.InetSocketAddress;
import java.net.Socket;

public class ServerUtils {
    public static int port = 25565;
    public static String address_fallback = Utils.getServerHostPublicIP();
    public static String webhook_notify = Main.getNotifyWebhook();
    public static String webhook_messages = Main.getPublicMessageWebhook();
    public static String address = "http://mc-srv2-singapore.rrryfoo.cf";

    public static boolean serverIsUp(String serverAddress, Integer serverPort) {
        /*Socket socket;
        try {
            socket = new Socket(address, port);
            socket.close();
            return true;
        } catch (Exception e) {
            try {
                System.out.println("Server is inactive on default address. Pinging on fallback address (" + address_fallback + ")...");
                Socket socket2 = new Socket(address_fallback, port);
                socket2.close();
                return true;
            } catch (Exception exception) {
                System.out.println("Server is inactive on fallback address. No longer pinging...");
                return false;
            }
        }*/
        try {
            Server server = Bukkit.getServer();
            Socket s = new Socket();
            s.connect(new InetSocketAddress(serverAddress.toString(), Integer.parseInt(serverPort.toString())), 15);
            s.close();
            System.out.println("Server is online. Sending message to webhook_notify... (Pinged " + Utils.getServerHostPublicIP() + ":" + server.getPort() + ")");
            return true;
        } catch (Exception e) {
            System.out.println("Server is inactive. Pinging fallback address...");
            try {
                Server server = Bukkit.getServer();
                Socket s = new Socket();
                s.connect(new InetSocketAddress(address_fallback, Integer.parseInt(serverPort.toString())), 15);
                s.close();
            } catch (Exception err) {
                System.out.println("Fallback address is inactive. No longer pinging...");
            }
            return false;
        }
    }

}