package com.manning.nettyinaction.chapter4;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.oio.OioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.oio.OioServerSocketChannel;
import java.net.InetSocketAddress;
import java.nio.charset.Charset;
/**
* Listing 4.3 of <i>Netty in Action</i>
*
* @author <a href="mailto:nmaurer@redhat.com">Norman Maurer</a>
*/
public class NettyOioServer {
public void server(int port) throws Exception {
final ByteBuf buf = Unpooled.unreleasableBuffer(
Unpooled.copiedBuffer("Hi!\r\n", Charset.forName("UTF-8")));
EventLoopGroup group = new OioEventLoopGroup();
try {
ServerBootstrap b = new ServerBootstrap();
b.group(group)
.channel(OioServerSocketChannel.class)
.localAddress(new InetSocketAddress(port))
.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch)
throws Exception {
ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
ctx.write(buf.duplicate()).addListener(ChannelFutureListener.CLOSE);
}
});
}
});
ChannelFuture f = b.bind().sync();
f.channel().closeFuture().sync();
} finally {
group.shutdownGracefully().sync();
}
}
}