package com.manning.nettyinaction.chapter2;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;
/**
* Listing 2.1 of <i>Netty in Action</i>
*
* @author <a href="mailto:norman.maurer@googlemail.com">Norman Maurer</a>
*/
@Sharable
public class EchoServerHandler extends
ChannelInboundHandlerAdapter {
@Override
public void channelRead(ChannelHandlerContext ctx,
Object msg) {
ByteBuf in = (ByteBuf) msg;
System.out.println("Server received: " + in.toString(CharsetUtil.UTF_8));
ctx.write(in);
}
@Override
public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx,
Throwable cause) {
cause.printStackTrace();
ctx.close();
}
}