/*
* Copyright 2013 Red Hat, Inc.
*
* 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.fusesource.hawtdispatch.netty;
import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundByteHandlerAdapter;
import org.fusesource.hawtdispatch.Dispatch;
import org.junit.Test;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.Random;
import java.util.concurrent.atomic.AtomicReference;
import static org.junit.Assert.assertEquals;
/**
* @author <a href="mailto:nmaurer@redhat.com">Norman Maurer</a>
*/
public class HawtEchoTest {
private static final Random random = new Random();
static final byte[] data = new byte[4096];//could not test ultra jumbo frames
static {
random.nextBytes(data);
}
@Test
public void testSimpleEcho() throws Throwable {
// Configure the server.
ServerBootstrap sb = new ServerBootstrap();
sb.group(new HawtEventLoopGroup(Dispatch.getGlobalQueue()), new HawtEventLoopGroup(Dispatch.getGlobalQueue()))
.channel(HawtServerSocketChannel.class);
// Configure the client.
Bootstrap cb = new Bootstrap();
cb.group(new HawtEventLoopGroup(Dispatch.getGlobalQueue()))
.channel(HawtSocketChannel.class);
final EchoHandler sh = new EchoHandler();
final EchoHandler ch = new EchoHandler();
sb.childHandler(sh);
cb.handler(ch);
Channel sc = sb.bind(new InetSocketAddress(0)).sync().channel();
Channel cc = cb.connect(sc.localAddress()).sync().channel();
for (int i = 0; i < data.length; ) {
int length = Math.min(random.nextInt(1024 * 64), data.length - i);
cc.write(Unpooled.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(50);
} catch (InterruptedException e) {
// Ignore.
}
}
while (sh.counter < data.length) {
if (sh.exception.get() != null) {
break;
}
if (ch.exception.get() != null) {
break;
}
try {
Thread.sleep(50);
} catch (InterruptedException e) {
// Ignore.
}
}
sh.channel.close().sync();
ch.channel.close().sync();
sc.close().sync();
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 ChannelInboundByteHandlerAdapter {
volatile Channel channel;
final AtomicReference<Throwable> exception = new AtomicReference<Throwable>();
volatile int counter;
@Override
public ByteBuf newInboundBuffer(ChannelHandlerContext ctx) throws Exception {
return Unpooled.buffer();
}
@Override
public void channelActive(ChannelHandlerContext ctx)
throws Exception {
channel = ctx.channel();
}
@Override
public void inboundBufferUpdated(
ChannelHandlerContext ctx, ByteBuf in)
throws Exception {
byte[] actual = new byte[in.readableBytes()];
in.readBytes(actual);
int lastIdx = counter;
for (int i = 0; i < actual.length; i++) {
assertEquals(data[i + lastIdx], actual[i]);
}
if (channel.parent() != null) {
channel.write(Unpooled.wrappedBuffer(actual));
}
counter += actual.length;
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx,
Throwable cause) throws Exception {
if (exception.compareAndSet(null, cause)) {
ctx.close();
}
}
}
}