/*
* Copyright 2014 Red Hat, Inc.
*
* 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 io.vertx.test.core;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.vertx.core.Context;
import io.vertx.core.Vertx;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.impl.ContextInternal;
import io.vertx.core.net.NetClientOptions;
import io.vertx.core.net.NetSocket;
import org.junit.Test;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
/**
* @author <a href="http://tfox.org">Tim Fox</a>
*/
public class EventLoopGroupTest extends VertxTestBase {
@Test
public void testGetEventLoopGroup() {
EventLoopGroup elp = vertx.nettyEventLoopGroup();
assertNotNull(elp);
}
@Test
public void testNettyServerUsesContextEventLoop() throws Exception {
ContextInternal context = (ContextInternal) vertx.getOrCreateContext();
AtomicReference<Thread> contextThread = new AtomicReference<>();
CountDownLatch latch = new CountDownLatch(1);
context.runOnContext(v -> {
contextThread.set(Thread.currentThread());
latch.countDown();
});
awaitLatch(latch);
ServerBootstrap bs = new ServerBootstrap();
bs.group(context.nettyEventLoop());
bs.channel(NioServerSocketChannel.class);
bs.option(ChannelOption.SO_BACKLOG, 100);
bs.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(SocketChannel ch) throws Exception {
assertSame(contextThread.get(), Thread.currentThread());
context.executeFromIO(() -> {
assertSame(contextThread.get(), Thread.currentThread());
assertSame(context, Vertx.currentContext());
ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
assertSame(contextThread.get(), Thread.currentThread());
context.executeFromIO(() -> {
assertSame(contextThread.get(), Thread.currentThread());
assertSame(context, Vertx.currentContext());
});
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
ByteBuf buf = (ByteBuf) msg;
assertEquals("hello", buf.toString(StandardCharsets.UTF_8));
assertSame(contextThread.get(), Thread.currentThread());
context.executeFromIO(() -> {
assertSame(contextThread.get(), Thread.currentThread());
assertSame(context, Vertx.currentContext());
});
}
@Override
public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
assertSame(contextThread.get(), Thread.currentThread());
context.executeFromIO(() -> {
assertSame(contextThread.get(), Thread.currentThread());
assertSame(context, Vertx.currentContext());
ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
});
}
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
assertSame(contextThread.get(), Thread.currentThread());
context.executeFromIO(() -> {
assertSame(contextThread.get(), Thread.currentThread());
assertSame(context, Vertx.currentContext());
testComplete();
});
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
fail(cause.getMessage());
}
});
});
}
});
bs.bind("localhost", 1234).sync();
vertx.createNetClient(new NetClientOptions()).connect(1234, "localhost", ar -> {
assertTrue(ar.succeeded());
NetSocket so = ar.result();
so.write(Buffer.buffer("hello"));
});
await();
}
}