/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package util;

import javax.microedition.rms.RecordStore;
import javax.microedition.rms.RecordStoreException;

/**
 *
 * @author 1
 */
public class saverestore {

    static RecordStore rs;

    public saverestore() {
    }

    public static boolean isSavedData(String name) {
        try {
            rs = RecordStore.openRecordStore(name, false);
            rs.closeRecordStore();
            return true;
        } catch (RecordStoreException ex) {
            System.out.println("Record store " + name + " is not avaliable");
            return false;
        }
    }

    public static void save(String name, int num, byte[] record) {
        try {
            rs = RecordStore.openRecordStore(name, true);
            if (rs.getNumRecords() == 0 || num > rs.getNumRecords()) {
                rs.addRecord(record, 0, record.length);
            } else {
                rs.setRecord(num, record, 0, record.length);
            }
        } catch (RecordStoreException ex) {
        }
    }

    public static void saveInt(String name, int num, int record) {
        String tmp = String.valueOf(record);
        byte[] b = tmp.getBytes();

        try {
            rs = RecordStore.openRecordStore(name, true);
            if (rs.getNumRecords() == 0 || num > rs.getNumRecords()) {
                rs.addRecord(b, 0, b.length);
            } else {
                rs.setRecord(num, b, 0, b.length);
            }
        } catch (RecordStoreException ex) {
        }
    }

    public static void saveString(String name, int num, String record) {
        byte[] b = record.getBytes();

        try {
            rs = RecordStore.openRecordStore(name, true);
            if (rs.getNumRecords() == 0 || num > rs.getNumRecords()) {
                rs.addRecord(b, 0, b.length);
            } else {
                rs.setRecord(num, b, 0, b.length);
            }
        } catch (RecordStoreException ex) {
        }
    }

    public static int restoreInt(String name, int num) {
        byte[] tmp = null;
        try {
            rs = RecordStore.openRecordStore(name, false);
            tmp = rs.getRecord(num);
        } catch (RecordStoreException ex) {
        }
        String s = new String(tmp);
        return Integer.parseInt(s);
    }

    public static String restoreString(String name, int num) {
        byte[] tmp = null;
        try {
            rs = RecordStore.openRecordStore(name, false);
            tmp = rs.getRecord(num);
        } catch (RecordStoreException ex) {
        }
        return new String(tmp);
    }

    public static byte[] restore(String name, int num) {
        byte[] tmp = null;
        try {
            rs = RecordStore.openRecordStore(name, false);
            tmp = rs.getRecord(num);
        } catch (RecordStoreException ex) {
            System.out.println("Record " + name + " #" + String.valueOf(num) + " is not avaliable!");
            return null;
        }
        return tmp;
    }

    public static void close() {
        try {
            rs.closeRecordStore();
        } catch (RecordStoreException ex) {
        }
    }
}