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SocketChannelEndPointOpenCloseTest.java
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SocketChannelEndPointOpenCloseTest.java
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//
// ========================================================================
// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// 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.io;
import java.nio.ByteBuffer;
import java.nio.channels.SelectableChannel;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import org.eclipse.jetty.util.BufferUtil;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class SocketChannelEndPointOpenCloseTest
{
public static class EndPointPair
{
public SocketChannelEndPoint client;
public SocketChannelEndPoint server;
}
static ServerSocketChannel connector;
@BeforeAll
public static void open() throws Exception
{
connector = ServerSocketChannel.open();
connector.socket().bind(null);
}
@AfterAll
public static void close() throws Exception
{
connector.close();
connector = null;
}
private EndPointPair newConnection() throws Exception
{
EndPointPair c = new EndPointPair();
SelectionKey k = new SelectionKey()
{
@Override
public SelectableChannel channel()
{
throw new UnsupportedOperationException();
}
@Override
public Selector selector()
{
throw new UnsupportedOperationException();
}
@Override
public boolean isValid()
{
throw new UnsupportedOperationException();
}
@Override
public void cancel()
{
}
@Override
public int interestOps()
{
throw new UnsupportedOperationException();
}
@Override
public SelectionKey interestOps(int ops)
{
throw new UnsupportedOperationException();
}
@Override
public int readyOps()
{
throw new UnsupportedOperationException();
}
};
c.client = new SocketChannelEndPoint(SocketChannel.open(connector.socket().getLocalSocketAddress()), null, k, null);
c.server = new SocketChannelEndPoint(connector.accept(), null, k, null);
return c;
}
@Test
public void testClientServerExchange() throws Exception
{
EndPointPair c = newConnection();
ByteBuffer buffer = BufferUtil.allocate(4096);
// Client sends a request
c.client.flush(BufferUtil.toBuffer("request"));
// Server receives the request
int len = c.server.fill(buffer);
assertEquals(7, len);
assertEquals("request", BufferUtil.toString(buffer));
// Client and server are open
assertTrue(c.client.isOpen());
assertFalse(c.client.isOutputShutdown());
assertTrue(c.server.isOpen());
assertFalse(c.server.isOutputShutdown());
// Server sends response and closes output
c.server.flush(BufferUtil.toBuffer("response"));
c.server.shutdownOutput();
// client server are open, server is oshut
assertTrue(c.client.isOpen());
assertFalse(c.client.isOutputShutdown());
assertTrue(c.server.isOpen());
assertTrue(c.server.isOutputShutdown());
// Client reads response
BufferUtil.clear(buffer);
len = c.client.fill(buffer);
assertEquals(8, len);
assertEquals("response", BufferUtil.toString(buffer));
// Client and server are open, server is oshut
assertTrue(c.client.isOpen());
assertFalse(c.client.isOutputShutdown());
assertTrue(c.server.isOpen());
assertTrue(c.server.isOutputShutdown());
// Client reads -1
BufferUtil.clear(buffer);
len = c.client.fill(buffer);
assertEquals(-1, len);
// Client and server are open, server is oshut, client is ishut
assertTrue(c.client.isOpen());
assertFalse(c.client.isOutputShutdown());
assertTrue(c.server.isOpen());
assertTrue(c.server.isOutputShutdown());
// Client shutsdown output, which is a close because already ishut
c.client.shutdownOutput();
// Client is closed. Server is open and oshut
assertFalse(c.client.isOpen());
assertTrue(c.client.isOutputShutdown());
assertTrue(c.server.isOpen());
assertTrue(c.server.isOutputShutdown());
// Server reads close
BufferUtil.clear(buffer);
len = c.server.fill(buffer);
assertEquals(-1, len);
// Client and Server are closed
assertFalse(c.client.isOpen());
assertTrue(c.client.isOutputShutdown());
assertFalse(c.server.isOpen());
assertTrue(c.server.isOutputShutdown());
}
@Test
public void testClientClose() throws Exception
{
EndPointPair c = newConnection();
ByteBuffer buffer = BufferUtil.allocate(4096);
c.client.flush(BufferUtil.toBuffer("request"));
int len = c.server.fill(buffer);
assertEquals(7, len);
assertEquals("request", BufferUtil.toString(buffer));
assertTrue(c.client.isOpen());
assertFalse(c.client.isOutputShutdown());
assertTrue(c.server.isOpen());
assertFalse(c.server.isOutputShutdown());
c.client.close();
assertFalse(c.client.isOpen());
assertTrue(c.client.isOutputShutdown());
assertTrue(c.server.isOpen());
assertFalse(c.server.isOutputShutdown());
len = c.server.fill(buffer);
assertEquals(-1, len);
assertFalse(c.client.isOpen());
assertTrue(c.client.isOutputShutdown());
assertTrue(c.server.isOpen());
assertFalse(c.server.isOutputShutdown());
c.server.shutdownOutput();
assertFalse(c.client.isOpen());
assertTrue(c.client.isOutputShutdown());
assertFalse(c.server.isOpen());
assertTrue(c.server.isOutputShutdown());
}
}