RequestFilePacket.java

/*
 * 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 io.mycat.server.packet;

import io.mycat.net.NetSystem;
import io.mycat.server.MySQLFrontConnection;
import io.mycat.server.packet.util.BufferUtil;

import java.nio.ByteBuffer;

/**
 * load data local infile 向客户端请求发送文件用
 */
public class RequestFilePacket extends MySQLPacket
{
    public static final byte FIELD_COUNT = (byte) 251;
    public byte command = FIELD_COUNT;
    public byte[] fileName;


    public void write(MySQLFrontConnection c)
    {
        int size = calcPacketSize();
        ByteBuffer buffer = NetSystem.getInstance().getBufferPool()
				.allocate();
        BufferUtil.writeUB3(buffer, size);
        buffer.put(packetId);
        buffer.put(command);
        if (fileName != null)
        {

            buffer.put(fileName);

        }

        c.write(buffer);
    }

    @Override
    public int calcPacketSize()
    {
        return fileName == null ? 1 : 1 + fileName.length;
    }

    @Override
    protected String getPacketInfo()
    {
        return "MySQL Request File Packet";
    }


}