/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file 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.
*/
package org.apache.catalina.startup;
import java.util.Set;
import javax.servlet.ServletContainerInitializer;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletException;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import org.apache.catalina.Context;
public class TestListener extends TomcatBaseTest {
/**
* Check that a ServletContainerInitializer can install a
* {@link ServletContextListener} and that it gets initialized.
* @throws Exception
*/
@Test
public void testServletContainerInitializer() throws Exception {
Tomcat tomcat = getTomcatInstance();
Context context = tomcat.addContext("/",
System.getProperty("java.io.tmpdir"));
context.addServletContainerInitializer(new SCI(), null);
tomcat.start();
assertTrue(SCL.initialized);
}
/**
* Check that a {@link ServletContextListener} cannot install a
* {@link ServletContainerInitializer}.
* @throws Exception
*/
@Test
public void testServletContextListener() throws Exception {
Tomcat tomcat = getTomcatInstance();
Context context = tomcat.addContext("/",
System.getProperty("java.io.tmpdir"));
// SCL2 pretends to be in web.xml, and tries to install a
// ServletContextInitializer.
context.addApplicationListener(SCL2.class.getName());
tomcat.start();
//check that the ServletContextInitializer wasn't initialized.
assertFalse(SCL3.initialized);
}
public static class SCI implements ServletContainerInitializer {
@Override
public void onStartup(Set<Class<?>> c, ServletContext ctx)
throws ServletException {
ctx.addListener(new SCL());
}
}
public static class SCL implements ServletContextListener {
static boolean initialized = false;
@Override
public void contextInitialized(ServletContextEvent sce) {
initialized = true;
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
// NOOP
}
}
public static class SCL2 implements ServletContextListener {
@Override
public void contextInitialized(ServletContextEvent sce) {
ServletContext sc = sce.getServletContext();
sc.addListener(SCL3.class.getName());
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
// NOOP
}
}
public static class SCL3 implements ServletContextListener {
static boolean initialized = false;
@Override
public void contextInitialized(ServletContextEvent sce) {
initialized = true;
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
// NOOP
}
}
}