MySQL.java

package me.snics.straf;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.util.HashMap;

import org.bukkit.plugin.Plugin;

import com.mysql.jdbc.PreparedStatement;

public abstract class MySQL implements Plugin
{
    static Connection connection;
    String prefix = "§f§l[§c§lLABEL§f§l] §r";
    static HashMap<String, String> playerPunish = new HashMap<String, String>();
    static HashMap<String, String> punisher = new HashMap<String, String>();
    static HashMap<String, String> reason = new HashMap<String, String>();

    public synchronized void onDisable()
    {
        try
        {
            if(connection != null && !connection.isClosed())
            {
                connection.close();
            }
        }

        catch (Exception e1)
        {
            e1.printStackTrace();
        }
    }

    public static synchronized void openConnection()
    {
        try
        {
            connection = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/straf", "root", "Pidiboe002");
        }

        catch (Exception e1)
        {
            e1.printStackTrace();
        }
    }

    public static synchronized void closeConnection()
    {
        try
        {
            connection.close();
        }

        catch (Exception e1)
        {
            e1.printStackTrace();
        }
    }

    public static synchronized boolean playerdataContainsPlayer(String args)
    {
        openConnection();
        try
        {
            PreparedStatement sql = (PreparedStatement) connection.prepareStatement("SELECT * FROM `player_data` WHERE player_name=?;");
            sql.setString(1, args);

            ResultSet result = sql.executeQuery();
            boolean containsPlayer = result.next();

            sql.close();
            result.close();

            return containsPlayer;
        }

        catch (Exception e1)
        {
            e1.printStackTrace();
        }

        finally
        {
            closeConnection();
        }
        return true;
    }
}