minecraft-kajetans-mod/src/main/java/me/km/plots/ProtectionBank.java

package me.km.plots;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import me.km.databank.DataBank;
import me.km.overrides.ModEntityPlayerMP;
import me.km.world.WorldManager;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.IWorld;

public class ProtectionBank implements IProtection
{
    private final PreparedStatement getIds;
    private final PreparedStatement canBuild;
    
    public ProtectionBank(DataBank databank) 
    {
        databank.execute("CREATE TABLE IF NOT EXISTS plots ("
                    + "id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, "
                    + "x1 int(11) NOT NULL, "
                    + "y1 int(11) NOT NULL, "
                    + "z1 int(11) NOT NULL, "
                    + "x2 int(11) NOT NULL, "
                    + "y2 int(11) NOT NULL, "
                    + "z2 int(11) NOT NULL, "
                    + "world_name varchar(20) NOT NULL, "
                    + "name varchar(50) NOT NULL, "
                    + "INDEX (x1, x2), "
                    + "INDEX (y1, y2), "
                    + "INDEX (z1, z2), "
                    + "INDEX (world_name));");
        
        databank.execute("CREATE TABLE IF NOT EXISTS plot_grant ("
                    + "id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, "
                    + "plot_id int(11) NOT NULL, "
                    + "player_id int(11) NOT NULL, "
                    + "INDEX plot_id (plot_id), "
                    + "UNIQUE KEY (plot_id, player_id), "
                    + "CONSTRAINT plot_grant_ibfk_1 FOREIGN KEY (plot_id) REFERENCES plots (id) ON DELETE CASCADE);");
        
        getIds = databank.prepareStatement("SELECT id FROM plots WHERE x1<=? AND x2>=? AND y1<=? AND y2>=? AND z1<=? AND z2>=? AND world_name=?;");
        canBuild = databank.prepareStatement("SELECT id FROM plot_grant WHERE plot_id=? AND player_id=?;");
    }
    
    @Override
    public ArrayList<Double> getIds(int x, int y, int z, String worldName)
    {
        ArrayList<Double> list = new ArrayList<>();
        try
        {
            getIds.setInt(1, x);
            getIds.setInt(2, x);
            getIds.setInt(3, y);
            getIds.setInt(4, y);
            getIds.setInt(5, z);
            getIds.setInt(6, z);
            getIds.setString(7, worldName);
            try(ResultSet rs = getIds.executeQuery())
            {
                while(rs.next())
                {
                    list.add((double) rs.getInt(1));
                }
            }
            catch(SQLException ex)
            {
                ex.printStackTrace();
            }
        }
        catch(SQLException ex)
        {
            ex.printStackTrace();
        }
        return list;
    }
    
    @Override
    public boolean canBuild(int x, int y, int z, String worldName, int playerId)
    {
        ArrayList<Double> ids = getIds(x, y, z, worldName);
        if(ids.isEmpty())
        {
            return true;
        }
        for(double plotId : ids)
        {
            try
            {
                canBuild.setInt(1, (int) plotId);
                canBuild.setInt(2, playerId);
                try(ResultSet rs = canBuild.executeQuery())
                {
                    if(rs.next())
                    {
                        return true;
                    }
                }
                catch(SQLException ex)
                {
                    ex.printStackTrace();
                }
            }
            catch(SQLException ex)
            {
                ex.printStackTrace();
            }
        }
        return false;
    }
    
    @Override
    public boolean canBuild(IWorld w, BlockPos pos, ModEntityPlayerMP p)
    {
        return canBuild(pos.getX(), pos.getY(), pos.getZ(), WorldManager.getName(w), p.getId());
    }
}