Java DataInputStream to Object deserialiseByteArrayArray(DataInputStream is, int max_length)

Description

deserialise Byte Array Array

License

Open Source License

Declaration

protected static byte[][] deserialiseByteArrayArray(DataInputStream is,
            int max_length)

    throws IOException 

Method Source Code

//package com.java2s;
/*/*from  w ww  .  j a  v  a 2 s  .c  o  m*/
 * Created on 21-Jan-2005
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

import java.io.DataInputStream;

import java.io.IOException;

public class Main {
    protected static byte[][] deserialiseByteArrayArray(DataInputStream is,
            int max_length)

    throws IOException {
        int len = deserialiseLength(is, max_length);

        byte[][] data = new byte[len][];

        for (int i = 0; i < data.length; i++) {

            data[i] = deserialiseByteArray(is, max_length);
        }

        return (data);
    }

    protected static int deserialiseLength(DataInputStream is,
            int max_length)

    throws IOException {
        int len;

        if (max_length < 256) {

            len = is.readByte() & 0xff;

        } else if (max_length < 65536) {

            len = is.readShort() & 0xffff;

        } else {

            len = is.readInt();
        }

        if (len > max_length) {

            throw (new IOException("Invalid DHT data length: max="
                    + max_length + ",actual=" + len));
        }

        return (len);
    }

    protected static byte[] deserialiseByteArray(DataInputStream is,
            int max_length)

    throws IOException {
        int len = deserialiseLength(is, max_length);

        byte[] data = new byte[len];

        is.read(data);

        return (data);
    }
}

Related

1. deserialiseByteArray(DataInputStream is, int max_length)
2. deserialiseLength(DataInputStream is, int max_length)
3. deserializeInt(DataInputStream din)
4. deserializeIntArray(DataInputStream in)
5. deserializeString(DataInputStream din)