/* Copyright 2004 Sun Microsystems, Inc. All rights reserved.  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:  - Redistributions of source code must retain the above copyright   notice, this list of conditions and the following disclaimer.  - Redistribution in binary form must reproduce the above copyright   notice, this list of conditions and the following disclaimer in   the documentation and/or other materials provided with the   distribution.  Neither the name of Sun Microsystems, Inc. or the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission.  This software is provided "AS IS," without a warranty of any kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.  You acknowledge that Software is not designed, licensed or intended for use in the design, construction, operation or maintenance of any nuclear facility. $Id: SignOnNotifier.java,v 1.2 2004/01/21 00:12:53 gmurray71 Exp $ */package com.sun.j2ee.blueprints.consumerwebsite;import java.beans.Beans;import java.util.*;import javax.servlet.http.*;import javax.servlet.*;// signon componentimport com.sun.j2ee.blueprints.signon.web.SignOnFilter;// customer component importsimport com.sun.j2ee.blueprints.customer.*;// adventure importsimport com.sun.j2ee.blueprints.consumerwebsite.actions.*;/**  * This class will bind with the current session and notify the Adventure Builder * Back end when a SignOn has occured. * * This allows for a loose coupling of the SignOn component and the  * Adventure Builder Application.  Ensure the neccessary setup is   * done when a user signs in. */public class SignOnNotifier     implements java.io.Serializable, HttpSessionAttributeListener {    public SignOnNotifier() { }    // do nothing    public void attributeRemoved(HttpSessionBindingEvent se) {}        /**     *     * Process an attribute added     *     */    public void attributeAdded(HttpSessionBindingEvent se) {        processEvent(se);    }    /**     * Process the update     */    public void attributeReplaced(HttpSessionBindingEvent se) {        processEvent(se);    }        private void processEvent(HttpSessionBindingEvent se) {        HttpSession session = se.getSession();        String name = se.getName();        /* check if the value matches the signon attribute         * if a macth fire off an event to the ejb tier that the user         * has signed on and load the account for the user         */        if (name.equals(SignOnFilter.SIGNED_ON_USER)) {            boolean aSignOn  = ((Boolean)se.getValue()).booleanValue();            if (aSignOn) {                AdventureComponentManager acm =                    (AdventureComponentManager)session.getAttribute(AdventureKeys.COMPONENT_MANAGER);                // Delegate the work to access the customer component.                CustomerFacade facade = null;                /**                 * If the unbinding was the result of a session timeout                 * the session will be gone and the acm will be null                 */                if (acm != null) {                    facade = acm.getCustomerFacade(session);                    CustomerHTMLAction action = new CustomerHTMLAction();                    CustomerBean bean = null;                    try {                        bean = action.readAccount(session, facade);                    } catch (Exception cex) {                        // log error message                        cex.printStackTrace();                    }                    session.setAttribute(AdventureKeys.CUSTOMER_BEAN, bean);                }            }        }    }}