RankSQL

package fr.cocacraft.myrank;

import java.sql.*;

import org.bukkit.entity.Player;

public class RankSQL {

	private String url_base, host, name, username, password, table;
	private Connection connection;

	public RankSQL(String url_base , String host, String name, String username, String password, String table){
		this.url_base = url_base;
		this.host = host;
		this.name = name;
		this.username = username;
		this.password = password;
		this.table = table;
	}
	public void connection(){
		if (!isConnected()){
			try{
				connection = DriverManager.getConnection(url_base + host + "/" + name, username, password);
			}catch (SQLException e){
				e.printStackTrace();
			}
		}
	}

	public void deconnection(){
		if (isConnected()){
			try{
				connection.close();
			}catch (SQLException e){
				e.printStackTrace();
			}
		}
	}

	private boolean isConnected(){
		try{
			if ((connection == null) || (connection.isClosed()) || (connection.isValid(5))){
				return false;
			} else {
				return true;
			}
		}catch (SQLException e){
			e.printStackTrace();
		}
		return false;
	}

	private Connection getConnection(){
		return connection;
	}

	public void createAccount(Player p){
		try{
			PreparedStatement sts = getConnection().prepareStatement("SELECT rank FROM " + table + " WHERE uuid = ?");
			sts.setString(1, p.getUniqueId().toString());
			ResultSet rs = sts.executeQuery();
			if (!rs.next()){
				sts.close();
				sts = getConnection().prepareStatement("INSERT INTO " + table + " (uuid, rank) VALUES (?, ?)");
				sts.setString(1, p.getUniqueId().toString());
				sts.setInt(2, 10);
				sts.executeUpdate();
				sts.close();
			}
		}catch (SQLException e){
			e.printStackTrace();
		}
	}

	public Rank getRank(String uuid){
		Rank rank = null;
		try{
			PreparedStatement sts = getConnection().prepareStatement("SELECT rank FROM " + table + " WHERE uuid = ?");
			sts.setString(1, uuid);
			ResultSet rs = sts.executeQuery();
			if(!rs.next()){
				return null;
			}
			rank = Rank.getFromPower(rs.getInt("rank"));
			sts.close();
		}catch (SQLException e){
			e.printStackTrace();
		}
		return rank;
	}

	public void setRank(Player p, Rank rank){
		try{
			PreparedStatement sts = getConnection().prepareStatement("UPDATE "+table+" SET rank = ? WHERE uuid = ?");
			sts.setInt(2, rank.getPower());
			sts.setString(2, p.getUniqueId().toString());
			sts.executeUpdate();
			sts.close();
		}catch (SQLException e){
			e.printStackTrace();
		}
	}

	public boolean hasPermission(Player p, String permissions){
		try{
			PreparedStatement sts = getConnection().prepareStatement("SELECT permissions FROM "+table+" WHERE uuid = ?");
			sts.setString(1, p.getUniqueId().toString());
			ResultSet rs = sts.executeQuery();
			while(rs.next()){
				if(permissions.equalsIgnoreCase(rs.getString(permissions)));
				return true;
			}
			sts.close();
		}catch (SQLException e){
			e.printStackTrace();
		}
		return false;
	}

	public void addPermission(Player p, String permission){
		try{
			PreparedStatement sts = getConnection().prepareStatement("INSERT INTO "+table+" (uuid, rank, permissions) VALUES (?, ?, ?)");
			sts.setString(1, p.getUniqueId().toString());
			sts.setInt(2, getRank(p.getUniqueId().toString()).getPower());
			sts.setString(3, permission);
			sts.executeUpdate();
			sts.close();
		}catch (SQLException e){

		}
	}

	public void removePermission(Player p, String permissions){
		try{
			PreparedStatement sts = getConnection().prepareStatement("DELETE FROM "+table+" WHERE "+" UUID = ?" + " ans permissions = ?");
			sts.setString(1, p.getUniqueId().toString());
			sts.setString(2, permissions);
			sts.executeUpdate();
			sts.close();
		}catch (SQLException e){
			e.printStackTrace();
		}
	}

}