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* 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.mapper;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
import org.apache.catalina.Container;
import org.apache.catalina.ContainerListener;
import org.apache.catalina.Context;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.LifecycleListener;
import org.apache.catalina.startup.Tomcat;
import org.apache.catalina.startup.TomcatBaseTest;
import org.apache.tomcat.util.buf.ByteChunk;
import org.apache.tomcat.websocket.server.WsContextListener;
public class TestMapperListener extends TomcatBaseTest {
@Test
public void testTomcatRestartListenerCount_Bug56717() throws IOException,
LifecycleException {
// The test runs Tomcat twice, tests that it has started successfully,
// and compares the counts of listeners registered on containers
// after the first and the second starts.
// Sample request is from TestTomcat#testSingleWebapp()
Tomcat tomcat = getTomcatInstance();
File appDir = new File(getBuildDirectory(), "webapps/examples");
// app dir is relative to server home
Context ctxt = tomcat.addWebapp(null, "/examples",
appDir.getAbsolutePath());
ctxt.addApplicationListener(WsContextListener.class.getName());
tomcat.start();
ByteChunk res;
String text;
res = getUrl("http://localhost:" + getPort()
+ "/examples/servlets/servlet/HelloWorldExample");
text = res.toString();
Assert.assertTrue(text, text.contains("<h1>Hello World!</h1>"));
List<ListenersInfo> listenersFirst = new ArrayList<>();
populateListenersInfo(listenersFirst, tomcat.getEngine());
tomcat.stop();
tomcat.start();
res = getUrl("http://localhost:" + getPort()
+ "/examples/servlets/servlet/HelloWorldExample");
text = res.toString();
Assert.assertTrue(text, text.contains("<h1>Hello World!</h1>"));
List<ListenersInfo> listenersSecond = new ArrayList<>();
populateListenersInfo(listenersSecond, tomcat.getEngine());
Assert.assertEquals(listenersFirst.size(), listenersSecond.size());
for (int i = 0, len = listenersFirst.size(); i < len; i++) {
ListenersInfo a = listenersFirst.get(i);
ListenersInfo b = listenersSecond.get(i);
boolean equal = a.container.getClass() == b.container.getClass()
&& a.containerListeners.length == b.containerListeners.length
&& a.lifecycleListeners.length == b.lifecycleListeners.length;
if (!equal) {
Assert.fail("The lists of listeners differ:\n" + a + "\n" + b);
}
}
}
private static class ListenersInfo {
public final Container container;
public final ContainerListener[] containerListeners;
public final LifecycleListener[] lifecycleListeners;
public ListenersInfo(Container container,
ContainerListener[] containerListeners,
LifecycleListener[] lifecycleListeners) {
this.container = container;
this.containerListeners = containerListeners;
this.lifecycleListeners = lifecycleListeners;
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append("[container: \"").append(container)
.append("\"\n containerListeners.length: ")
.append(containerListeners.length)
.append(", lifecycleListeners.length: ")
.append(lifecycleListeners.length)
.append("\n containerListeners: ")
.append(Arrays.asList(containerListeners))
.append("\n lifecycleListeners: ")
.append(Arrays.asList(lifecycleListeners)).append("\n]");
return buf.toString();
}
}
private static void populateListenersInfo(List<ListenersInfo> list,
Container container) {
list.add(new ListenersInfo(container, container
.findContainerListeners(), container.findLifecycleListeners()));
for (Container child : container.findChildren()) {
populateListenersInfo(list, child);
}
}
}