2 * ================================================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ================================================================================
20 package org.openecomp.portalapp.portal.listener;
22 import java.util.HashMap;
24 import javax.servlet.ServletContext;
25 import javax.servlet.ServletContextEvent;
26 import javax.servlet.ServletContextListener;
28 public class UserContextListener implements ServletContextListener{
29 @SuppressWarnings("rawtypes")
30 public void contextInitialized(ServletContextEvent event){
31 ServletContext context = event.getServletContext();
33 // instanciate a map to store references to all the active
34 // sessions and bind it to context scope.
36 HashMap activeUsers = new HashMap();
37 context.setAttribute("activeUsers", activeUsers);
41 * Needed for the ServletContextListener interface.
43 public void contextDestroyed(ServletContextEvent event){
44 // To overcome the problem with losing the session references
45 // during server restarts, put code here to serialize the
46 // activeUsers HashMap. Then put code in the contextInitialized
47 // method that reads and reloads it if it exists...