io.lightflame.tcp.TcpHandler Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of lightflame-core Show documentation

Full web framework

The newest version!

package io.lightflame.tcp;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.util.CharsetUtil;

/**
 * TcpHandler
 */
public class TcpHandler extends SimpleChannelInboundHandler{


    @Override
    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
        ctx.writeAndFlush(Unpooled.EMPTY_BUFFER)
                .addListener(ChannelFutureListener.CLOSE);
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        cause.printStackTrace();
        ctx.close();
    }

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
        ByteBuf inBuffer = msg;

        String received = inBuffer.toString(CharsetUtil.UTF_8);
        System.out.println("Server received: " + received);

        ctx.write(Unpooled.copiedBuffer("Hello " + received, CharsetUtil.UTF_8));

    }
}