//
// ========================================================================
// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.http2.client;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import org.eclipse.jetty.http.HttpFields;
import org.eclipse.jetty.http.HttpVersion;
import org.eclipse.jetty.http.MetaData;
import org.eclipse.jetty.http2.HTTP2Session;
import org.eclipse.jetty.http2.api.Session;
import org.eclipse.jetty.http2.api.Stream;
import org.eclipse.jetty.http2.api.server.ServerSessionListener;
import org.eclipse.jetty.http2.frames.DataFrame;
import org.eclipse.jetty.http2.frames.HeadersFrame;
import org.eclipse.jetty.http2.frames.ResetFrame;
import org.eclipse.jetty.http2.frames.SettingsFrame;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.FuturePromise;
import org.junit.Assert;
import org.junit.Test;
public class StreamCountTest extends AbstractTest
{
@Test
public void testServersAllowsOneStreamEnforcedByClient() throws Exception
{
startServer(new ServerSessionListener.Adapter()
{
@Override
public Map<Integer, Integer> onPreface(Session session)
{
Map<Integer, Integer> settings = new HashMap<>();
settings.put(SettingsFrame.MAX_CONCURRENT_STREAMS, 1);
return settings;
}
@Override
public Stream.Listener onNewStream(Stream stream, HeadersFrame frame)
{
return new Stream.Listener.Adapter()
{
@Override
public void onData(Stream stream, DataFrame frame, Callback callback)
{
if (frame.isEndStream())
{
HttpFields fields = new HttpFields();
MetaData.Response metaData = new MetaData.Response(HttpVersion.HTTP_2, 200, fields);
stream.headers(new HeadersFrame(stream.getId(), metaData, null, true), callback);
}
}
};
}
});
final CountDownLatch settingsLatch = new CountDownLatch(1);
Session session = newClient(new Session.Listener.Adapter()
{
@Override
public void onSettings(Session session, SettingsFrame frame)
{
settingsLatch.countDown();
}
});
Assert.assertTrue(settingsLatch.await(5, TimeUnit.SECONDS));
HttpFields fields = new HttpFields();
MetaData.Request metaData = newRequest("GET", fields);
HeadersFrame frame1 = new HeadersFrame(1, metaData, null, false);
FuturePromise<Stream> streamPromise1 = new FuturePromise<>();
final CountDownLatch responseLatch = new CountDownLatch(1);
session.newStream(frame1, streamPromise1, new Stream.Listener.Adapter()
{
@Override
public void onHeaders(Stream stream, HeadersFrame frame)
{
if (frame.isEndStream())
responseLatch.countDown();
}
});
Stream stream1 = streamPromise1.get(5, TimeUnit.SECONDS);
HeadersFrame frame2 = new HeadersFrame(3, metaData, null, false);
FuturePromise<Stream> streamPromise2 = new FuturePromise<>();
session.newStream(frame2, streamPromise2, new Stream.Listener.Adapter());
try
{
streamPromise2.get(5, TimeUnit.SECONDS);
Assert.fail();
}
catch (ExecutionException x)
{
// Expected
}
stream1.data(new DataFrame(stream1.getId(), BufferUtil.EMPTY_BUFFER, true), new Callback.Adapter());
Assert.assertTrue(responseLatch.await(5, TimeUnit.SECONDS));
}
@Test
public void testServersAllowsOneStreamEnforcedByServer() throws Exception
{
final CountDownLatch resetLatch = new CountDownLatch(1);
startServer(new ServerSessionListener.Adapter()
{
@Override
public Stream.Listener onNewStream(Stream stream, HeadersFrame frame)
{
HTTP2Session session = (HTTP2Session)stream.getSession();
session.setMaxRemoteStreams(1);
return new Stream.Listener.Adapter()
{
@Override
public void onData(Stream stream, DataFrame frame, Callback callback)
{
if (frame.isEndStream())
{
HttpFields fields = new HttpFields();
MetaData.Response metaData = new MetaData.Response(HttpVersion.HTTP_2, 200, fields);
stream.headers(new HeadersFrame(stream.getId(), metaData, null, true), callback);
}
}
};
}
});
Session session = newClient(new Session.Listener.Adapter()
{
@Override
public void onReset(Session session, ResetFrame frame)
{
resetLatch.countDown();
}
});
HttpFields fields = new HttpFields();
MetaData.Request metaData = newRequest("GET", fields);
HeadersFrame frame1 = new HeadersFrame(1, metaData, null, false);
FuturePromise<Stream> streamPromise1 = new FuturePromise<>();
final CountDownLatch responseLatch = new CountDownLatch(1);
session.newStream(frame1, streamPromise1, new Stream.Listener.Adapter()
{
@Override
public void onHeaders(Stream stream, HeadersFrame frame)
{
if (frame.isEndStream())
responseLatch.countDown();
}
});
Stream stream1 = streamPromise1.get(5, TimeUnit.SECONDS);
HeadersFrame frame2 = new HeadersFrame(3, metaData, null, false);
FuturePromise<Stream> streamPromise2 = new FuturePromise<>();
session.newStream(frame2, streamPromise2, new Stream.Listener.Adapter());
streamPromise2.get(5, TimeUnit.SECONDS);
Assert.assertTrue(resetLatch.await(5, TimeUnit.SECONDS));
stream1.data(new DataFrame(stream1.getId(), BufferUtil.EMPTY_BUFFER, true), new Callback.Adapter());
Assert.assertTrue(responseLatch.await(5, TimeUnit.SECONDS));
}
}