TARDISDispersalUpdater.java

/*
 * Copyright (C) 2016 eccentric_nz
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package me.eccentric_nz.TARDIS.database;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import me.eccentric_nz.TARDIS.TARDIS;

/**
 * Cyber-conversion into Cybermen involves the replacement of body parts
 * (including limbs, organs, and vital systems) with artificial components.
 * Partial conversion, with the victim retaining autonomy and a human identity
 * and body parts, is possible.
 *
 * @author eccentric_nz
 */
public class TARDISDispersalUpdater {

    private final TARDIS plugin;
    private final TARDISDatabaseConnection service = TARDISDatabaseConnection.getInstance();
    private final Connection connection = service.getConnection();
    private final String prefix;

    public TARDISDispersalUpdater(TARDIS plugin) {
        this.plugin = plugin;
        this.prefix = this.plugin.getPrefix();
    }

    /**
     * Convert pre-TARDIS v2.3 controls to the new system.
     */
    public void updateTardis_ids() {
        int i = 0;
        Statement statement = null;
        ResultSet rs = null;
        ResultSet rst = null;
        PreparedStatement ps_select = null;
        PreparedStatement ps_update = null;
        try {
            service.testConnection(connection);
            statement = connection.createStatement();
            rs = statement.executeQuery("SELECT d_id, uuid FROM " + prefix + "dispersed");
            // insert values from tardis table
            if (rs.isBeforeFirst()) {
                ps_select = connection.prepareStatement("SELECT tardis_id FROM " + prefix + "tardis WHERE uuid = ?");
                ps_update = connection.prepareStatement("UPDATE " + prefix + "dispersed SET tardis_id = ? WHERE d_id = ?");
                while (rs.next()) {
                    ps_select.setString(1, rs.getString("uuid"));
                    rst = ps_select.executeQuery();
                    if (rst.next()) {
                        ps_update.setInt(1, rst.getInt("tardis_id"));
                        ps_update.setInt(2, rs.getInt("d_id"));
                        ps_update.executeUpdate();
                        i++;
                    }
                }
            }
        } catch (SQLException e) {
            plugin.debug("Dispersal update error: " + e.getMessage());
        } finally {
            if (statement != null) {
                try {
                    statement.close();
                } catch (SQLException e) {
                    plugin.debug("Dispersal statement close error: " + e.getMessage());
                }
            }
            if (rs != null) {
                try {
                    rs.close();
                } catch (SQLException e) {
                    plugin.debug("Dispersal statement close error: " + e.getMessage());
                }
            }
            if (rst != null) {
                try {
                    rst.close();
                } catch (SQLException e) {
                    plugin.debug("Dispersal statement close error: " + e.getMessage());
                }
            }
            if (ps_select != null) {
                try {
                    ps_select.close();
                } catch (SQLException e) {
                    plugin.debug("Dispersal select prepared statement close error: " + e.getMessage());
                }
            }
            if (ps_update != null) {
                try {
                    ps_update.close();
                } catch (SQLException e) {
                    plugin.debug("Dispersal update prepared statement close error: " + e.getMessage());
                }
            }
        }
        if (i > 0) {
            plugin.getConsole().sendMessage(plugin.getPluginName() + "Updated " + i + " dispersed records");
        }
    }
}