/*
* 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.felix.http.itest;
import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
import static javax.servlet.http.HttpServletResponse.SC_OK;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.servlet.AsyncContext;
import javax.servlet.DispatcherType;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.exam.junit.JUnit4TestRunner;
/**
* @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
*/
@RunWith(JUnit4TestRunner.class)
public class AsyncTest extends BaseIntegrationTest
{
/**
* Tests that we can use an asynchronous servlet (introduced in Servlet 3.0 spec).
*/
@Test
public void testAsyncServletOk() throws Exception
{
CountDownLatch initLatch = new CountDownLatch(1);
CountDownLatch destroyLatch = new CountDownLatch(1);
TestServlet servlet = new TestServlet(initLatch, destroyLatch)
{
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
final AsyncContext asyncContext = req.startAsync(req, resp);
asyncContext.setTimeout(2000);
asyncContext.start(new Runnable()
{
public void run()
{
try
{
// Simulate a long running process...
Thread.sleep(1000);
HttpServletResponse response = (HttpServletResponse) asyncContext.getResponse();
response.setStatus(SC_OK);
response.getWriter().printf("Hello Async world!");
asyncContext.complete();
}
catch (InterruptedException e)
{
Thread.currentThread().interrupt();
}
catch (Exception e)
{
e.printStackTrace();
}
}
});
}
};
register("/test", servlet);
assertTrue(initLatch.await(5, TimeUnit.SECONDS));
assertContent("Hello Async world!", createURL("/test"));
unregister(servlet);
assertTrue(destroyLatch.await(5, TimeUnit.SECONDS));
assertResponseCode(SC_NOT_FOUND, createURL("/test"));
}
/**
* Tests that we can use an asynchronous servlet (introduced in Servlet 3.0 spec) using the dispatching functionality.
*/
@Test
public void testAsyncServletWithDispatchOk() throws Exception
{
CountDownLatch initLatch = new CountDownLatch(1);
CountDownLatch destroyLatch = new CountDownLatch(1);
TestServlet servlet = new TestServlet(initLatch, destroyLatch)
{
private static final long serialVersionUID = 1L;
@Override
protected void doGet(final HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
DispatcherType dispatcherType = req.getDispatcherType();
if (DispatcherType.REQUEST == dispatcherType)
{
final AsyncContext asyncContext = req.startAsync(req, resp);
asyncContext.start(new Runnable()
{
public void run()
{
try
{
// Simulate a long running process...
Thread.sleep(1000);
asyncContext.getRequest().setAttribute("msg", "Hello Async world!");
asyncContext.dispatch();
}
catch (InterruptedException e)
{
Thread.currentThread().interrupt();
}
}
});
}
else if (DispatcherType.ASYNC == dispatcherType)
{
String response = (String) req.getAttribute("msg");
resp.setStatus(SC_OK);
resp.getWriter().printf(response);
resp.flushBuffer();
}
}
};
register("/test", servlet);
assertTrue(initLatch.await(5, TimeUnit.SECONDS));
assertContent("Hello Async world!", createURL("/test"));
unregister(servlet);
assertTrue(destroyLatch.await(5, TimeUnit.SECONDS));
assertResponseCode(SC_NOT_FOUND, createURL("/test"));
}
}