kern/src/de/superx/dbadmin/DBAccess.java

package de.superx.dbadmin;

/**
 * Insert the type's description here. Creation date: (08.01.2002 16:15:26)
 * 
 * @author:
 */
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Enumeration;
import java.util.Vector;

import javax.swing.JOptionPane;

class DBAccess {
    static Connection myConnection;
    static Vector userliste, gruppenliste, maskenliste = null;
    static SxSQL sxsql;;

    public static void init(String url, String logToKonsole, String user,
            String passwd) throws Exception {

        sxsql = new SxSQL(url, logToKonsole, user, passwd);

    }

    public static String getString(ResultSet rs1, String feldname) {
        Object test;
        String rückgabe = null;
        try {

            test = rs1.getObject(feldname);
            if (test != null)
                rückgabe = test.toString();
            else
                rückgabe = new String("");
        } catch (Exception e) {
        }
        return rückgabe;
    }

    public static String getStringOrNull(String was) {
        String back;
        if (was.equals(""))
            back = null;
        else
            back = "'" + was.trim() + "'";
        return back;
    }

    public static String getIntegerOrNull(String was) {
        String back;
        if (was.equals(""))
            back = null;
        else
            back = was.trim();

        return back;
    }

    public static Integer getInteger(ResultSet rs1, String feldname) {
        Object test;
        Integer rückgabe = null;
        try {

            test = rs1.getObject(feldname);
            if ((test != null) && (test instanceof Integer))
                rückgabe = (Integer) test;
        } catch (Exception e) {
        }
        return rückgabe;
    }

    public static Vector getMaskenListe() {
        Vector liste = new Vector();
        Vector row;
        Integer id;
        String name;
        try {

            String query = "select tid, name, erlaeuterung, select_stmt, cleanup_stmt,xil_proplist from maskeninfo order by 2";
            liste = executeQuery(query);
        } catch (Exception e) {
            JOptionPane.showMessageDialog(null,
                    "Fehler beim Lesen aus der Datenbank: " + e.toString(),
                    "SuperX DB Admin", JOptionPane.WARNING_MESSAGE);
            e.printStackTrace();
        }
        return liste;

    }

    public static Vector getUserListe() {
        if (userliste == null)
            userListeNeuEinlesen();
        return userliste;
    }

     static void userListeNeuEinlesen() {
        try {
            userliste = new Vector();
            Vector row;
            Integer id;
            String benutzer, email, name, max_versuch, akt_versuch, info;
            Object wert;

            String query = "select tid, benutzer,name,email,info,max_versuch,akt_versuch,passwd_sha from userinfo order by benutzer";
            userliste = executeQuery(query);
            for (Enumeration en = userliste.elements(); en.hasMoreElements();) {
                row = (Vector) en.nextElement();
                for (Enumeration en2 = row.elements(); en2.hasMoreElements();) {
                    wert = en2.nextElement();
                    if (wert == null)
                        wert = new String("");
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            JOptionPane.showMessageDialog(null, "Fehler bei Datenbankzugriff: "
                    + e.toString(), "DBAccess", 1);
        }

    }

    public static Vector NutzerListeEinlesen_Alt() {
        Vector liste = new Vector();
        Vector row;
        Integer id;
        String benutzer;
        try {

            String query = "select tid, benutzer from userinfo order by benutzer";
            Statement statement = myConnection.createStatement();
            ResultSet rs1 = statement.executeQuery(query);
            while (rs1.next()) {
                id = (Integer) rs1.getObject("tid");
                benutzer = rs1.getObject("benutzer").toString();
                row = new Vector();
                row.add(id);
                row.add(benutzer.trim());
                liste.add(row);

            }
            rs1.close();
            statement.close();

        } catch (Exception e) {
            JOptionPane.showMessageDialog(null,
                    "Fehler beim Lesen aus der Datenbank: " + e.toString(),
                    "SuperX DB Admin", JOptionPane.WARNING_MESSAGE);
            e.printStackTrace();
        }
        return liste;
    }

    public static Vector GruppenListeEinlesen() {
        Vector liste = new Vector();
        try {
            String query = "select tid, name from groupinfo order by 2";
            liste = executeQuery(query);
        } catch (Exception e) {
            e.printStackTrace();
            JOptionPane.showMessageDialog(null, "Fehler bei Datenbankzugriff: "
                    + e.toString(), "DBAccess", 1);
        }

        return liste;
    }

    public static Vector executeQuery(String query) throws Exception {
        //ein Vector im Vector wird geliefert
        Vector erg = null;

        sxsql.executeQuery(query);

        erg = sxsql.getResultVector();
        return erg;
    }

    public static Object executeQuerySingleValue(String query) throws Exception {
        Object rück = null;

        Vector erg = executeQuery(query);
        //ein Vector im Vector wird geliefert
        Vector help = (Vector) erg.get(0);
        rück = help.get(0);

        return rück;
    }

    public static void executeUpdate(String upd) throws Exception {

        sxsql.execute(upd);

    }

    public static void executeUpdateAll(String upd) throws Exception {

        sxsql.executeAll(upd);

    }
}