/*- * ============LICENSE_START========================================== * ONAP Portal * =================================================================== * Copyright © 2017 AT&T Intellectual Property. All rights reserved. * =================================================================== * * Unless otherwise specified, all software contained herein is licensed * under the Apache License, Version 2.0 (the “License”); * you may not use this software except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * Unless otherwise specified, all documentation contained herein is licensed * under the Creative Commons License, Attribution 4.0 Intl. (the “License”); * you may not use this documentation except in compliance with the License. * You may obtain a copy of the License at * * https://creativecommons.org/licenses/by/4.0/ * * Unless required by applicable law or agreed to in writing, documentation * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * ============LICENSE_END============================================ * * ECOMP is a trademark and service mark of AT&T Intellectual Property. */ package org.openecomp.portalapp.portal.listener; import java.util.HashMap; import javax.servlet.ServletContext; import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; import javax.servlet.annotation.WebListener; @WebListener public class UserContextListener implements ServletContextListener{ @SuppressWarnings("rawtypes") public void contextInitialized(ServletContextEvent event){ ServletContext context = event.getServletContext(); // // instanciate a map to store references to all the active // sessions and bind it to context scope. // HashMap activeUsers = new HashMap(); context.setAttribute("activeUsers", activeUsers); } /** * Needed for the ServletContextListener interface. */ public void contextDestroyed(ServletContextEvent event){ // To overcome the problem with losing the session references // during server restarts, put code here to serialize the // activeUsers HashMap. Then put code in the contextInitialized // method that reads and reloads it if it exists... } }