Dynamic Menu Generation (Using Child Parent Relation in Table )

package com.zion.controllers;

import java.awt.BorderLayout;
import java.sql.*;
import java.util.*;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.Sessions;
import org.zkoss.zk.ui.util.GenericForwardComposer;
import org.zkoss.zul.*;
import com.zion.masters.*;
import java.util.ArrayList;
import org.zkoss.zk.ui.Executions;

/**
 *
 * @author LD000754
 */
public class SessionController extends GenericForwardComposer {

    public String Login, Name, EmployeeID, Active;
    public Menubar mainMenu;
    private BorderLayout menubar;
    public List ls = new java.util.ArrayList();
    private org.zkoss.zul.Include bodyLayout;

    @Override
    public void doAfterCompose(Component comp) throws Exception {
        super.doAfterCompose(comp);
        this.MenuCreate();
    }

    public void MenuCreate() throws SQLException {
        boolean valid = Sessions.getCurrent().getAttribute("EmployeeID") != null ? true : false;
        if (!valid) {
            //nameDisplay.setLabel("");
            //Executions.sendRedirect("ErrorHandler.zul");
        } else {
            Login = Sessions.getCurrent().getAttribute("Login").toString();
            Name = Sessions.getCurrent().getAttribute("Name").toString();
            EmployeeID = Sessions.getCurrent().getAttribute("EmployeeID").toString();
            Active = Sessions.getCurrent().getAttribute("Active").toString();

            Menu homeMenu = new Menu();
            homeMenu.setParent(mainMenu);
            homeMenu.setLabel("Home");
            homeMenu.setImage("/images/toolbar/Home.gif");
            homeMenu.setId("Home");
            homeMenu.addEventListener("onClick", new MyListener());
            CheckSession_AcessMenu checksession = new CheckSession_AcessMenu();
            String accessGroupid = checksession.AccessGroupid(EmployeeID);
            if (accessGroupid.length() > 0) {
                List rootModules = new ArrayList();
                rootModules = checksession.getRootModule(EmployeeID);
                Iterator itrootModules = rootModules.iterator();
                Sessions.getCurrent().setAttribute("AccessGroupID", accessGroupid);
                while (itrootModules.hasNext()) {
                    EmployeeAccess empAccess = (EmployeeAccess) itrootModules.next();
                    String rootModuleID = empAccess.getModuleid();
                    String rootModuleNameS = empAccess.getModuleName();
                    Menu rootMenu = new Menu();
                    rootMenu.setParent(mainMenu);
                    rootMenu.setLabel(rootModuleNameS);
                    Menupopup popupAdmin = new Menupopup();
                    popupAdmin.setParent(rootMenu);
                    menuCreation(rootModuleID, popupAdmin);

                }
            }

            Menu nameDisplay = new Menu();
            Menupopup popupName = new Menupopup();
            Menuitem itemName = new Menuitem();
            itemName.setLabel("Logout");
            itemName.setParent(popupName);
            itemName.setId("Logout");
            itemName.addEventListener("onClick", new MyListener());
            popupName.setParent(nameDisplay);
            nameDisplay.setParent(mainMenu);
            nameDisplay.setImage("/images/toolbar/tvResource.gif");
            String setLable = Name + "  ( " + Login + " )";
            nameDisplay.setLabel(setLable);

        }
    }

    public void menuCreation(String rootModuleID, Menupopup popup) throws SQLException {
        CheckSession_AcessMenu checksession = new CheckSession_AcessMenu();
        List childList = new ArrayList();
        childList = checksession.getChildModule(rootModuleID, EmployeeID);
        Iterator itChild = childList.iterator();
        while (itChild.hasNext()) {
            EmployeeAccess employeeAccess = (EmployeeAccess) itChild.next();
            String Moduleid = employeeAccess.getModuleid();
            String Modulename = employeeAccess.getModuleName();
            String URL = employeeAccess.getSubModuleURL();
            List childListInn = new ArrayList();
            childListInn = checksession.getChildModule(Moduleid, EmployeeID);
            Menuitem itemModule1 = new Menuitem();
            if (childListInn.size() == 0) {
                itemModule1.setLabel(Modulename);
                itemModule1.setParent(popup);
                itemModule1.setId(Moduleid);
                itemModule1.setAttribute("URL", URL);
                itemModule1.addEventListener("onClick", new MyListener());
            } else if (childListInn.size() > 0) {
                Menupopup childPopup = new Menupopup();
                Menu childMenu = new Menu();
                childMenu.setLabel(Modulename);
                childPopup.setParent(childMenu);
                childMenu.setParent(popup);
                menuCreation(Moduleid, childPopup);

            }
        }
    }

    class MyListener implements org.zkoss.zk.ui.event.EventListener {

        public void onEvent(org.zkoss.zk.ui.event.Event event) {
            try {
                String controlID = event.getTarget().getId();

                if (controlID.equalsIgnoreCase("Logout") || controlID.equalsIgnoreCase("Home")) {
                    if (controlID.equalsIgnoreCase("Logout")) {
                        Sessions.getCurrent().invalidate();
                        Executions.sendRedirect("index.zul");
                    }
                    if (controlID.equalsIgnoreCase("Home")) {
                        bodyLayout.setSrc("home.zul");
                    }
                } else {
                    CheckSession_AcessMenu checksession = new CheckSession_AcessMenu();
                    boolean valid = Sessions.getCurrent().getAttribute("EmployeeID") != null ? true : false;
                    if (valid) {
                        String URL = checksession.GetModuleURL(controlID).toString();
                        if (URL != null) {
                            bodyLayout.setSrc(URL);
                        }

                    } else {
                        Executions.sendRedirect("index.zul");

                    }
                }

            } catch (Exception ex) {
            }


        }
    }
}