Core.java

public class Core extends JavaPlugin {

    public static Core core;

    public static String DB_HOST;
    public static String DB_USER;
    public static String DB_PASSWORD;
    public static String DB_NAME;
    public static String DB_TABLE;

    public static String prefix = ChatColor.GOLD + "Cave" + ChatColor.YELLOW + "Points" + ChatColor.GRAY + " System: ";

    @Override
    public void onEnable() {
        Bukkit.getConsoleSender().sendMessage(prefix + "Loading settings and managers...");
        getCommand("economy").setExecutor(new EconomyCommand());
        getCommand("eco").setExecutor(new EconomyCommand());
        Bukkit.getConsoleSender().sendMessage(prefix + "Setting up MySQL Database...");
        getConfig().options().copyDefaults(true);
        getConfig().options().copyHeader(true);
        getConfig().options().header("CaveCoinSystemConfig Config V1.0");
        getConfig().addDefault("mysql.host", "localhost");
        getConfig().addDefault("mysql.user", "root");
        getConfig().addDefault("mysql.password", "root");
        getConfig().addDefault("mysql.database", "cave_economy");
        getConfig().addDefault("mysql.table", "economy");
        saveConfig();
        DB_HOST = getConfig().getString("mysql.host");
        DB_USER = getConfig().getString("mysql.user");
        DB_PASSWORD = getConfig().getString("mysql.password");
        DB_NAME = getConfig().getString("mysql.database");
        DB_TABLE = getConfig().getString("mysql.table");
        setupEconomy();
        super.onEnable();
    }

    @Override
    public void onDisable() {
        super.onDisable();
    }

    private boolean setupEconomy() {
        if (getServer().getPluginManager().getPlugin("Vault") == null) {
            return false;
        }
        RegisteredServiceProvider<Economy> rsp = getServer().getServicesManager().getRegistration(Economy.class);
        if (rsp == null) {
            return false;
        }
        Economy econ;
        econ = rsp.getProvider();
        return econ != null;
    }
}