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BlockedIOTest.java
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BlockedIOTest.java
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//
// ========================================================================
// Copyright (c) 1995-2021 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.http.client;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.client.util.DeferredContentProvider;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.AbstractHandler;
import org.eclipse.jetty.util.BufferUtil;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ArgumentsSource;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.core.Is.is;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class BlockedIOTest extends AbstractTest<TransportScenario>
{
@Override
public void init(Transport transport) throws IOException
{
setScenario(new TransportScenario(transport));
}
@ParameterizedTest
@ArgumentsSource(TransportProvider.class)
public void testBlockingReadThenNormalComplete(Transport transport) throws Exception
{
CountDownLatch started = new CountDownLatch(1);
CountDownLatch stopped = new CountDownLatch(1);
AtomicReference<Throwable> readException = new AtomicReference<>();
AtomicReference<Throwable> rereadException = new AtomicReference<>();
init(transport);
scenario.start(new AbstractHandler()
{
@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
baseRequest.setHandled(true);
new Thread(() ->
{
try
{
int b = baseRequest.getHttpInput().read();
if (b == '1')
{
started.countDown();
if (baseRequest.getHttpInput().read() > Integer.MIN_VALUE)
throw new IllegalStateException();
}
}
catch (Throwable ex1)
{
readException.set(ex1);
try
{
if (baseRequest.getHttpInput().read() > Integer.MIN_VALUE)
throw new IllegalStateException();
}
catch (Throwable ex2)
{
rereadException.set(ex2);
}
finally
{
stopped.countDown();
}
}
}).start();
try
{
// wait for thread to start and read first byte
started.await(10, TimeUnit.SECONDS);
// give it time to block on second byte
Thread.sleep(1000);
}
catch (Throwable e)
{
throw new ServletException(e);
}
response.setStatus(200);
response.setContentType("text/plain");
response.getOutputStream().print("OK\r\n");
}
});
DeferredContentProvider contentProvider = new DeferredContentProvider();
CountDownLatch ok = new CountDownLatch(2);
scenario.client.POST(scenario.newURI())
.content(contentProvider)
.onResponseContent((response, content) ->
{
assertThat(BufferUtil.toString(content), containsString("OK"));
ok.countDown();
})
.onResponseSuccess(response ->
{
try
{
assertThat(response.getStatus(), is(200));
stopped.await(10, TimeUnit.SECONDS);
ok.countDown();
}
catch (Throwable t)
{
t.printStackTrace();
}
})
.send(null);
contentProvider.offer(BufferUtil.toBuffer("1"));
assertTrue(ok.await(10, TimeUnit.SECONDS));
assertThat(readException.get(), instanceOf(IOException.class));
assertThat(rereadException.get(), instanceOf(IOException.class));
}
}