Java tutorial
/* * Copyright (C) 2016 Leonardosc * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package io.github.bktlib.network; import io.netty.channel.ChannelDuplexHandler; import io.netty.channel.ChannelHandlerContext; import io.netty.channel.ChannelPromise; public abstract class PacketHandler extends ChannelDuplexHandler { /** * Chamando quando um packet recebido. * * @param packet Pacote recebido * @return {@code true} para cancelar o recebimento do pacote. */ public abstract boolean onPacketReceived(Object packet); /** * Chamando quando um packet enviado. * * @param packet Pacote enviado * @return {@code true} para cancelar o envio do pacote. */ public abstract boolean onPacketSent(Object packet); @Override public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception { if (onPacketReceived(msg)) { return; } super.write(ctx, msg, promise); } @Override public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { if (onPacketSent(msg)) { return; } super.channelRead(ctx, msg); } }