appserver/tests/v2-tests/appserv-tests/sqetests/web/bookstore/src/listeners/ContextListener.java

/*
 * Copyright (c) 2004, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package listeners;

import database.BookDBAO;
import jakarta.servlet.*;


public final class ContextListener implements ServletContextListener {
    private ServletContext context = null;

    public void contextInitialized(ServletContextEvent event) {
        context = event.getServletContext();

        try {
            BookDBAO bookDBAO = new BookDBAO();
            context.setAttribute("bookDBAO", bookDBAO);
        } catch (Exception ex) {
            System.out.println("Couldn't create bookstore database bean: " +
                ex.getMessage());
        }
    }

    public void contextDestroyed(ServletContextEvent event) {
        context = event.getServletContext();

        BookDBAO bookDBAO = (BookDBAO) context.getAttribute("bookDBAO");

        if (bookDBAO != null) {
            bookDBAO.remove();
        }

        context.removeAttribute("bookDBAO");
    }
}