/* * Copyright (c) 2013, OpenCloudDB/MyCAT and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software;Designed and Developed mainly by many Chinese * opensource volunteers. you can redistribute it and/or modify it under the * terms of the GNU General Public License version 2 only, as published by the * Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Any questions about this component can be directed to it's project Web address * https://code.google.com/p/opencloudb/. * */ package com.talent.balance.backend.decode; import io.netty.buffer.ByteBuf; import io.netty.buffer.Unpooled; import java.io.IOException; import java.util.ArrayList; import java.util.List; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.talent.balance.backend.ext.BackendExt; import com.talent.balance.common.BalancePacket; import com.talent.mysql.ext.MysqlExt; import com.talent.mysql.packet.response.HandshakePacket; import com.talent.nio.api.Packet; import com.talent.nio.communicate.ChannelContext; import com.talent.nio.communicate.intf.DecoderIntf; /** * * * @filename: com.talent.balance.backend.decode.BackendResponseDecoder * @copyright: Copyright (c)2010 * @company: talent * @author: 谭耀武 * @version: 1.0 * @create time: 2013年12月25日 下午1:54:17 * @record * <table cellPadding="3" cellSpacing="0" style="width:600px"> * <thead style="font-weight:bold;background-color:#e3e197"> * <tr> <td>date</td> <td>author</td> <td>version</td> <td>description</td></tr> * </thead> * <tbody style="background-color:#ffffeb"> * <tr><td>2013年12月25日</td> <td>谭耀武</td> <td>1.0</td> <td>create</td></tr> * </tbody> * </table> */ public class BackendResponseDecoder implements DecoderIntf<Packet> { @SuppressWarnings("unused") private static Logger log = LoggerFactory.getLogger(BackendResponseDecoder.class); /** * @param args * @throws IOException */ public static void main(String[] args) throws IOException { } /** * */ public BackendResponseDecoder() { } @Override public PacketWithMeta<Packet> decode(ByteBuf buffer, ChannelContext channelContext) throws DecodeException { BalancePacket backendResponsePacket = new BalancePacket(); if (MysqlExt.getHandshakePacket(channelContext) == null && BackendExt.PROTOCOL_MYSQL.equals(channelContext.getProtocol())) { HandshakePacket handshakePacket = new HandshakePacket(); PacketWithMeta<Packet> pwm = handshakePacket.decode(buffer); return pwm; } backendResponsePacket.setBuffer(Unpooled.copiedBuffer(buffer)); List<Packet> packets = new ArrayList<Packet>(); packets.add(backendResponsePacket); PacketWithMeta<Packet> packetWithMeta = new PacketWithMeta<Packet>(); buffer.readerIndex(buffer.capacity()); packetWithMeta.setPacketLenght(buffer.capacity()); packetWithMeta.setPackets(packets); return packetWithMeta; } }