sweetgum-server/tools/MapleMobBookIndexer/src/maplemobbookindexer/MapleMobBookIndexer.java

/*
    This file is part of the HeavenMS MapleStory Server
    Copyleft (L) 2016 - 2018 RonanLana

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as
    published by the Free Software Foundation version 3 as published by
    the Free Software Foundation. You may not use, modify or distribute
    this program under any other version of the GNU Affero General Public
    License.

    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 Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package maplemobbookindexer;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

import java.io.*;


/**
 * @author RonanLana
 *
 * This application simply gets from the MonsterBook.img.xml all mobid's and
 * puts them on a SQL table with the correspondent mob cardid.
 *
 */
public class MapleMobBookIndexer {
    static String host = "jdbc:mysql://localhost:3306/heavenms";
    static String driver = "com.mysql.jdbc.Driver";
    static String username = "root";
    static String password = "";

    static String fileName = "lib/MonsterBook.img.xml";

    static Connection con = null;
    static InputStreamReader fileReader = null;
    static BufferedReader bufferedReader = null;
    static byte status = 0;
    static int mobId = -1;

    private static String getName(String token) {
        int i, j;
        char[] dest;
        String d;

        i = token.lastIndexOf("name");
        i = token.indexOf("\"", i) + 1; //lower bound of the string
        j = token.indexOf("\"", i);     //upper bound

        if(j - i < 7) dest = new char[6];
        else dest = new char[7];
        token.getChars(i, j, dest, 0);

        d = new String(dest);
        return(d);
    }

    private static void forwardCursor(int st) {
        String line = null;

        try {
            while(status >= st && (line = bufferedReader.readLine()) != null) {
                simpleToken(line);
            }
        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }

    private static void simpleToken(String token) {
        if(token.contains("/imgdir")) {
            status -= 1;
        }
        else if(token.contains("imgdir")) {
            status += 1;
        }
    }

    private static boolean isCard(int itemId) {
        return itemId / 10000 == 238;
    }
    
    private static void loadPairFromMob() {
        System.out.println("Loading mob id " + mobId);

        try {
            int itemId, rid = 1;
            
            PreparedStatement ps, ps2;
            ResultSet rs;
            
            ps = con.prepareStatement("SELECT itemid FROM drop_data WHERE (dropperid = ? AND itemid > 0) GROUP BY itemid;");
            ps.setInt(1, mobId);
            rs = ps.executeQuery();

            while(rs.next()) {
                itemId = rs.getInt("itemid");
                if(isCard(itemId)) {
                    ps2 = con.prepareStatement("INSERT INTO `monstercardwz` (`cardid`, `mobid`) VALUES (?, ?)", rid);
                    rid++;
                    ps2.setInt(1, itemId);
                    ps2.setInt(2, mobId);
                    
                    ps2.executeUpdate();
                }
            }
            
            rs.close();
            ps.close();
        }
        catch(SQLException e) {
            e.printStackTrace();
        }
    }

    private static void translateToken(String token) {
        String d;
        int temp;

        if(token.contains("/imgdir")) {
            status -= 1;
        }
        else if(token.contains("imgdir")) {
            if(status == 1) {           //getting MobId
                d = getName(token);
                mobId = Integer.parseInt(d);
            }
            else if(status == 2) {
                d = getName(token);

                if(d.contains("reward")) {
                    temp = status;

                    loadPairFromMob();
                    forwardCursor(temp);
                }
            }

            status += 1;
        }

    }

    private static void IndexFromDropData() {
        // This will reference one line at a time
        String line = null;

        try {
            Class.forName(driver).newInstance();
            con = DriverManager.getConnection(host, username, password);

            fileReader = new InputStreamReader(new FileInputStream(fileName), "UTF-8");
            bufferedReader = new BufferedReader(fileReader);

            PreparedStatement ps = con.prepareStatement("DROP TABLE IF EXISTS monstercardwz;");
            ps.execute();
            
            ps = con.prepareStatement("CREATE TABLE `monstercardwz` ("
                    + "`id` int(10) unsigned NOT NULL AUTO_INCREMENT,"
                    + "`cardid` int(10) NOT NULL DEFAULT '-1',"
                    + "`mobid` int(10) NOT NULL DEFAULT '-1',"
                    + "PRIMARY KEY (`id`)"
                    + ") ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;");
            ps.execute();
            
            while((line = bufferedReader.readLine()) != null) {
                translateToken(line);
            }

            bufferedReader.close();
            fileReader.close();

            con.close();
        }

        catch(FileNotFoundException ex) {
            System.out.println("Unable to open file '" + fileName + "'");
        }
        catch(IOException ex) {
            System.out.println("Error reading file '" + fileName + "'");
        }

        catch(SQLException e) {
            System.out.println("Warning: Could not establish connection to database to change card chance rate.");
            System.out.println(e.getMessage());
        }

        catch(ClassNotFoundException e) {
            System.out.println("Error: could not find class");
            System.out.println(e.getMessage());
        }

        catch(InstantiationException e) {
            System.out.println("Error: instantiation failure");
            System.out.println(e.getMessage());
        }

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

    public static void main(String[] args) {
        IndexFromDropData();
    }

}