2 * ============LICENSE_START==========================================
4 * ===================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ===================================================================
8 * Unless otherwise specified, all software contained herein is licensed
9 * under the Apache License, Version 2.0 (the "License");
10 * you may not use this software except in compliance with the License.
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34 * ============LICENSE_END============================================
38 package org.onap.portalapp.portal.listener;
40 import java.util.HashMap;
42 import javax.servlet.ServletContext;
43 import javax.servlet.ServletContextEvent;
44 import javax.servlet.ServletContextListener;
45 import javax.servlet.annotation.WebListener;
48 public class UserContextListener implements ServletContextListener{
49 @SuppressWarnings("rawtypes")
50 public void contextInitialized(ServletContextEvent event){
51 ServletContext context = event.getServletContext();
53 // instanciate a map to store references to all the active
54 // sessions and bind it to context scope.
56 HashMap activeUsers = new HashMap();
57 context.setAttribute("activeUsers", activeUsers);
61 * Needed for the ServletContextListener interface.
63 public void contextDestroyed(ServletContextEvent event){
64 // To overcome the problem with losing the session references
65 // during server restarts, put code here to serialize the
66 // activeUsers HashMap. Then put code in the contextInitialized
67 // method that reads and reloads it if it exists...