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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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*/
package org.apache.mina.transport;
import java.io.IOException;
import java.net.SocketAddress;
import java.util.Date;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.mina.common.ByteBuffer;
import org.apache.mina.common.IdleStatus;
import org.apache.mina.common.IoAcceptor;
import org.apache.mina.common.IoHandlerAdapter;
import org.apache.mina.common.IoSession;
import org.apache.mina.transport.socket.nio.DatagramAcceptor;
import org.apache.mina.transport.socket.nio.DatagramSessionConfig;
import org.apache.mina.transport.socket.nio.SocketAcceptor;
import org.apache.mina.transport.socket.nio.SocketAcceptorConfig;
import org.apache.mina.transport.socket.nio.SocketSessionConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Tests {@link IoAcceptor} resource leakage by repeating bind and unbind.
*
* @author The Apache Directory Project (mina-dev@directory.apache.org)
* @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $
*/
public abstract class AbstractBindTest extends TestCase {
protected final IoAcceptor acceptor;
protected int port;
public AbstractBindTest(IoAcceptor acceptor) {
this.acceptor = acceptor;
}
protected abstract SocketAddress createSocketAddress(int port);
protected abstract int getPort(SocketAddress address);
protected void bind(boolean reuseAddress) throws IOException {
setReuseAddress(reuseAddress);
// Find an availble test port and bind to it.
boolean socketBound = false;
// Let's start from port #1 to detect possible resource leak
// because test will fail in port 1-1023 if user run this test
// as a normal user.
for (port = 1; port <= 65535; port++) {
socketBound = false;
try {
acceptor.bind(createSocketAddress(port),
new EchoProtocolHandler());
socketBound = true;
break;
} catch (IOException e) {
}
}
// If there is no port available, test fails.
if (!socketBound) {
throw new IOException("Cannot bind any test port.");
}
//System.out.println( "Using port " + port + " for testing." );
}
private void setReuseAddress(boolean reuseAddress) {
if (acceptor instanceof DatagramAcceptor) {
((DatagramSessionConfig) acceptor.getDefaultConfig()
.getSessionConfig()).setReuseAddress(reuseAddress);
} else if (acceptor instanceof SocketAcceptor) {
((SocketAcceptorConfig) acceptor.getDefaultConfig())
.setReuseAddress(reuseAddress);
}
}
public void tearDown() {
try {
acceptor.unbindAll();
} catch (Exception e) {
// ignore
}
}
public void testAnonymousBind() throws Exception {
acceptor.bind(null, new IoHandlerAdapter());
Assert.assertEquals(1, acceptor.getManagedServiceAddresses().size());
acceptor.unbindAll();
Thread.sleep(500);
Assert.assertEquals(0, acceptor.getManagedServiceAddresses().size());
acceptor.bind(createSocketAddress(0), new IoHandlerAdapter());
Assert.assertEquals(1, acceptor.getManagedServiceAddresses().size());
SocketAddress address = acceptor.getManagedServiceAddresses()
.iterator().next();
Assert.assertTrue(getPort(address) != 0);
acceptor.unbind(address);
}
public void testDuplicateBind() throws IOException {
bind(false);
try {
acceptor.bind(createSocketAddress(port), new EchoProtocolHandler());
Assert.fail("IOException is not thrown");
} catch (IOException e) {
}
}
public void testDuplicateUnbind() throws IOException {
bind(false);
// this should succeed
acceptor.unbind(createSocketAddress(port));
try {
// this should fail
acceptor.unbind(createSocketAddress(port));
Assert.fail("Exception is not thrown");
} catch (Exception e) {
}
}
public void testManyTimes() throws IOException {
bind(true);
SocketAddress addr = createSocketAddress(port);
EchoProtocolHandler handler = new EchoProtocolHandler();
for (int i = 0; i < 1024; i++) {
acceptor.unbind(addr);
acceptor.bind(addr, handler);
}
}
public void _testRegressively() throws IOException {
setReuseAddress(true);
SocketAddress addr = createSocketAddress(port);
EchoProtocolHandler handler = new EchoProtocolHandler();
for (int i = 0; i < 1048576; i++) {
acceptor.bind(addr, handler);
testDuplicateBind();
testDuplicateUnbind();
if (i % 100 == 0) {
System.out.println(i + " (" + new Date() + ")");
}
}
bind(false);
}
private static class EchoProtocolHandler extends IoHandlerAdapter {
private static final Logger log = LoggerFactory
.getLogger(EchoProtocolHandler.class);
public void sessionCreated(IoSession session) {
if (session.getConfig() instanceof SocketSessionConfig) {
((SocketSessionConfig) session.getConfig())
.setReceiveBufferSize(2048);
}
session.setIdleTime(IdleStatus.BOTH_IDLE, 10);
}
public void sessionIdle(IoSession session, IdleStatus status) {
log.info("*** IDLE #" + session.getIdleCount(IdleStatus.BOTH_IDLE)
+ " ***");
}
public void exceptionCaught(IoSession session, Throwable cause) {
cause.printStackTrace();
session.close();
}
public void messageReceived(IoSession session, Object message)
throws Exception {
if (!(message instanceof ByteBuffer)) {
return;
}
ByteBuffer rb = (ByteBuffer) message;
// Write the received data back to remote peer
ByteBuffer wb = ByteBuffer.allocate(rb.remaining());
wb.put(rb);
wb.flip();
session.write(wb);
}
}
}