| /* |
| * Copyright (c) 1997, 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 test; |
| |
| import java.io.*; |
| import java.util.*; |
| import jakarta.servlet.*; |
| |
| public class MyListener implements ServletContextListener { |
| |
| /** |
| * Receives notification that the web application initialization |
| * process is starting. |
| * |
| * @param sce The servlet context event |
| */ |
| public void contextInitialized(ServletContextEvent sce) { |
| try { |
| doContextInitialized(sce); |
| } catch (ClassNotFoundException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /** |
| * Receives notification that the servlet context is about to be shut down. |
| * |
| * @param sce The servlet context event |
| */ |
| public void contextDestroyed(ServletContextEvent sce) { |
| // Do nothing |
| } |
| |
| private void doContextInitialized(ServletContextEvent sce) |
| throws ClassNotFoundException { |
| |
| ServletContext sc = sce.getServletContext(); |
| |
| /* |
| * Register servlet |
| */ |
| NewServlet servlet = new NewServlet(); |
| servlet.setMyParameter("myServletParamValue"); |
| ServletRegistration sr = sc.addServlet("NewServlet", servlet); |
| sr.setInitParameter("servletInitParamName", "servletInitParamValue"); |
| sr.addMapping("/newServlet"); |
| |
| /* |
| * Make sure that if we register a different servlet instance |
| * under the same name, null is returned |
| */ |
| if (sc.addServlet("NewServlet", new NewServlet()) != null) { |
| throw new RuntimeException( |
| "Duplicate servlet name not detected by " + |
| "ServletContext#addServlet"); |
| } |
| |
| /* |
| * Make sure that if we register the same servlet instance again |
| * (under a different name), null is returned |
| */ |
| if (sc.addServlet("AgainServlet", servlet) != null) { |
| throw new RuntimeException( |
| "Duplicate servlet instance not detected by " + |
| "ServletContext#addServlet"); |
| } |
| |
| /* |
| * Register filter |
| */ |
| NewFilter filter = new NewFilter(); |
| filter.setMyParameter("myFilterParamValue"); |
| FilterRegistration fr = sc.addFilter("NewFilter", filter); |
| fr.setInitParameter("filterInitParamName", "filterInitParamValue"); |
| fr.addMappingForServletNames(EnumSet.of(DispatcherType.REQUEST), |
| true, "NewServlet"); |
| |
| /* |
| * Make sure that if we register a different filter instance |
| * under the same name, null is returned |
| */ |
| if (sc.addFilter("NewFilter", new NewFilter()) != null) { |
| throw new RuntimeException( |
| "Duplicate filter name not detected by " + |
| "ServletContext#addFilter"); |
| } |
| |
| /* |
| * Make sure that if we register the same filter instance again |
| * (under a different name), null is returned |
| */ |
| if (sc.addFilter("AgainFilter", filter) != null) { |
| throw new RuntimeException( |
| "Duplicate filter instance not detected by " + |
| "ServletContext#addFilter"); |
| } |
| } |
| } |