/*
* 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.mina.transport.vmpipe;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.core.service.IoAcceptor;
import org.apache.mina.core.service.IoConnector;
import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.executor.ExecutorFilter;
/**
* Makes sure if the order of event is correct.
*
* @author The Apache MINA Project (dev@mina.apache.org)
* @version $Rev: 713957 $, $Date: 2008-11-14 10:27:16 +0100 (Fri, 14 Nov 2008) $
*/
public class VmPipeEventOrderTest extends TestCase {
public void testServerToClient() throws Exception {
IoAcceptor acceptor = new VmPipeAcceptor();
IoConnector connector = new VmPipeConnector();
acceptor.setHandler(new IoHandlerAdapter() {
@Override
public void sessionOpened(IoSession session) throws Exception {
session.write("B");
}
@Override
public void messageSent(IoSession session, Object message)
throws Exception {
session.close(true);
}
});
acceptor.bind(new VmPipeAddress(1));
final StringBuffer actual = new StringBuffer();
connector.setHandler(new IoHandlerAdapter() {
@Override
public void messageReceived(IoSession session, Object message)
throws Exception {
actual.append(message);
}
@Override
public void sessionClosed(IoSession session) throws Exception {
actual.append("C");
}
@Override
public void sessionOpened(IoSession session) throws Exception {
actual.append("A");
}
});
ConnectFuture future = connector.connect(new VmPipeAddress(1));
future.awaitUninterruptibly();
future.getSession().getCloseFuture().awaitUninterruptibly();
acceptor.dispose();
// sessionClosed() might not be invoked yet
// even if the connection is closed.
while (actual.indexOf("C") < 0) {
Thread.yield();
}
Assert.assertEquals("ABC", actual.toString());
}
public void testClientToServer() throws Exception {
IoAcceptor acceptor = new VmPipeAcceptor();
IoConnector connector = new VmPipeConnector();
final StringBuffer actual = new StringBuffer();
acceptor.setHandler(new IoHandlerAdapter() {
@Override
public void messageReceived(IoSession session, Object message)
throws Exception {
actual.append(message);
}
@Override
public void sessionClosed(IoSession session) throws Exception {
actual.append("C");
}
@Override
public void sessionOpened(IoSession session) throws Exception {
actual.append("A");
}
});
acceptor.bind(new VmPipeAddress(1));
connector.setHandler(new IoHandlerAdapter() {
@Override
public void sessionOpened(IoSession session) throws Exception {
session.write("B");
}
@Override
public void messageSent(IoSession session, Object message)
throws Exception {
session.close(true);
}
});
ConnectFuture future = connector.connect(new VmPipeAddress(1));
future.awaitUninterruptibly();
future.getSession().getCloseFuture().awaitUninterruptibly();
acceptor.dispose();
connector.dispose();
// sessionClosed() might not be invoked yet
// even if the connection is closed.
while (actual.indexOf("C") < 0) {
Thread.yield();
}
Assert.assertEquals("ABC", actual.toString());
}
public void testSessionCreated() throws Exception {
final Semaphore semaphore = new Semaphore(0);
final StringBuffer stringBuffer = new StringBuffer();
VmPipeAcceptor vmPipeAcceptor = new VmPipeAcceptor();
final VmPipeAddress vmPipeAddress = new VmPipeAddress(12345);
vmPipeAcceptor.setHandler(new IoHandlerAdapter() {
@Override
public void sessionCreated(IoSession session) throws Exception {
// pretend we are doing some time-consuming work. For
// performance reasons, you would never want to do time
// consuming work in sessionCreated.
// However, this increases the likelihood of the timing bug.
Thread.sleep(1000);
stringBuffer.append("A");
}
@Override
public void sessionOpened(IoSession session) throws Exception {
stringBuffer.append("B");
}
@Override
public void messageReceived(IoSession session, Object message)
throws Exception {
stringBuffer.append("C");
}
@Override
public void sessionClosed(IoSession session) throws Exception {
stringBuffer.append("D");
semaphore.release();
}
});
vmPipeAcceptor.bind(vmPipeAddress);
final VmPipeConnector vmPipeConnector = new VmPipeConnector();
vmPipeConnector.getFilterChain().addLast("executor", new ExecutorFilter());
vmPipeConnector.setHandler(new IoHandlerAdapter());
ConnectFuture connectFuture = vmPipeConnector.connect(vmPipeAddress);
connectFuture.awaitUninterruptibly();
connectFuture.getSession().write(IoBuffer.wrap(new byte[1]));
connectFuture.getSession().close(false).awaitUninterruptibly();
semaphore.tryAcquire(1, TimeUnit.SECONDS);
vmPipeAcceptor.unbind(vmPipeAddress);
Assert.assertEquals(1, connectFuture.getSession().getWrittenBytes());
Assert.assertEquals("ABCD", stringBuffer.toString());
}
}