/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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.jboss.netty.handler.codec.frame;
import org.jboss.netty.bootstrap.ClientBootstrap;
import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFactory;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.ExceptionEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
import org.jboss.netty.util.TestUtil;
import org.jboss.netty.util.internal.ExecutorUtil;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.Random;
import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.atomic.AtomicReference;
import static org.junit.Assert.*;
public abstract class AbstractSocketFixedLengthEchoTest {
private static final Random random = new Random();
static final byte[] data = new byte[1048576];
private static ExecutorService executor;
static {
random.nextBytes(data);
}
@BeforeClass
public static void init() {
executor = Executors.newCachedThreadPool();
}
@AfterClass
public static void destroy() {
ExecutorUtil.terminate(executor);
}
protected abstract ChannelFactory newServerSocketChannelFactory(Executor executor);
protected abstract ChannelFactory newClientSocketChannelFactory(Executor executor);
@Test
public void testFixedLengthEcho() throws Throwable {
ServerBootstrap sb = new ServerBootstrap(newServerSocketChannelFactory(executor));
ClientBootstrap cb = new ClientBootstrap(newClientSocketChannelFactory(executor));
EchoHandler sh = new EchoHandler();
EchoHandler ch = new EchoHandler();
sb.getPipeline().addLast("decoder", new FixedLengthFrameDecoder(1024));
sb.getPipeline().addAfter("decoder", "handler", sh);
cb.getPipeline().addLast("decoder", new FixedLengthFrameDecoder(1024));
cb.getPipeline().addAfter("decoder", "handler", ch);
Channel sc = sb.bind(new InetSocketAddress(0));
int port = ((InetSocketAddress) sc.getLocalAddress()).getPort();
Channel cc = cb.connect(
new InetSocketAddress(TestUtil.getLocalHost(), port)).syncUninterruptibly().getChannel();
for (int i = 0; i < data.length;) {
int length = Math.min(random.nextInt(1024 * 3), data.length - i);
cc.write(ChannelBuffers.wrappedBuffer(data, i, length));
i += length;
}
while (ch.counter < data.length) {
if (sh.exception.get() != null) {
break;
}
if (ch.exception.get() != null) {
break;
}
try {
Thread.sleep(1);
} catch (InterruptedException e) {
// Ignore.
}
}
while (sh.counter < data.length) {
if (sh.exception.get() != null) {
break;
}
if (ch.exception.get() != null) {
break;
}
try {
Thread.sleep(1);
} catch (InterruptedException e) {
// Ignore.
}
}
sh.channel.close().awaitUninterruptibly();
ch.channel.close().awaitUninterruptibly();
sc.close().awaitUninterruptibly();
cb.shutdown();
sb.shutdown();
cb.releaseExternalResources();
sb.releaseExternalResources();
if (sh.exception.get() != null && !(sh.exception.get() instanceof IOException)) {
throw sh.exception.get();
}
if (ch.exception.get() != null && !(ch.exception.get() instanceof IOException)) {
throw ch.exception.get();
}
if (sh.exception.get() != null) {
throw sh.exception.get();
}
if (ch.exception.get() != null) {
throw ch.exception.get();
}
}
private static class EchoHandler extends SimpleChannelUpstreamHandler {
volatile Channel channel;
final AtomicReference<Throwable> exception = new AtomicReference<Throwable>();
volatile int counter;
EchoHandler() {
}
@Override
public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e)
throws Exception {
channel = e.getChannel();
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e)
throws Exception {
ChannelBuffer m = (ChannelBuffer) e.getMessage();
assertEquals(1024, m.readableBytes());
byte[] actual = new byte[m.readableBytes()];
m.getBytes(0, actual);
int lastIdx = counter;
for (int i = 0; i < actual.length; i ++) {
assertEquals(data[i + lastIdx], actual[i]);
}
if (channel.getParent() != null) {
channel.write(m);
}
counter += actual.length;
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e)
throws Exception {
if (exception.compareAndSet(null, e.getCause())) {
e.getChannel().close();
}
}
}
}