/*
* Copyright (c) 2008-2017 the original author or authors.
*
* Licensed 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.cometd.javascript;
import java.io.IOException;
import java.util.EnumSet;
import javax.servlet.DispatcherType;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.servlet.FilterHolder;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.junit.Assert;
import org.junit.Test;
public class CometDLongPollingPublishFailureTest extends AbstractCometDLongPollingTest {
@Override
protected void customizeContext(ServletContextHandler context) throws Exception {
super.customizeContext(context);
PublishThrowingFilter filter = new PublishThrowingFilter();
FilterHolder filterHolder = new FilterHolder(filter);
context.addFilter(filterHolder, cometdServletPath + "/*", EnumSet.of(DispatcherType.REQUEST));
}
@Test
public void testPublishFailures() throws Exception {
defineClass(Latch.class);
evaluateScript("var readyLatch = new Latch(1);");
Latch readyLatch = get("readyLatch");
evaluateScript("cometd.addListener('/meta/connect', readyLatch, 'countDown');");
evaluateScript("cometd.init({url: '" + cometdURL + "', logLevel: '" + getLogLevel() + "'})");
Assert.assertTrue(readyLatch.await(5000));
evaluateScript("var subscribeLatch = new Latch(1);");
Latch subscribeLatch = get("subscribeLatch");
evaluateScript("cometd.addListener('/meta/subscribe', subscribeLatch, subscribeLatch.countDown);");
evaluateScript("var subscription = cometd.subscribe('/echo', subscribeLatch, subscribeLatch.countDown);");
Assert.assertTrue(subscribeLatch.await(5000));
evaluateScript("var publishLatch = new Latch(1);");
Latch publishLatch = get("publishLatch");
evaluateScript("var failureLatch = new Latch(1);");
Latch failureLatch = get("failureLatch");
evaluateScript("cometd.addListener('/meta/publish', publishLatch, publishLatch.countDown);");
evaluateScript("cometd.addListener('/meta/unsuccessful', failureLatch, failureLatch.countDown);");
evaluateScript("cometd.publish('/echo', 'test');");
Assert.assertTrue(publishLatch.await(5000));
Assert.assertTrue(failureLatch.await(5000));
// Be sure there is no backoff
evaluateScript("var backoff = cometd.getBackoffPeriod();");
int backoff = ((Number)get("backoff")).intValue();
Assert.assertEquals(0, backoff);
evaluateScript("var disconnectLatch = new Latch(1);");
Latch disconnectLatch = get("disconnectLatch");
evaluateScript("cometd.addListener('/meta/disconnect', disconnectLatch, disconnectLatch.countDown);");
evaluateScript("cometd.disconnect();");
Assert.assertTrue(disconnectLatch.await(5000));
String status = evaluateScript("cometd.getStatus();");
Assert.assertEquals("disconnected", status);
}
public static class PublishThrowingFilter implements Filter {
private int messages;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
doFilter((HttpServletRequest)request, (HttpServletResponse)response, chain);
}
private void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException {
String uri = request.getRequestURI();
if (!uri.endsWith("/handshake") && !uri.endsWith("/connect")) {
++messages;
}
// The second non-handshake and non-connect message will be the publish, throw
if (messages == 2) {
throw new IOException();
}
chain.doFilter(request, response);
}
@Override
public void destroy() {
}
}
}