Java ByteBuffer from Byte Array bufToArray(ByteBuffer b)

Description

buf To Array

License

Open Source License

Declaration

public static byte[] bufToArray(ByteBuffer b) 

Method Source Code

//package com.java2s;
/**/*from  w w w  .  j a  v a 2  s  . c  o  m*/
 * Copyright (C) 2015 Michal Harish
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

import java.nio.ByteBuffer;
import java.util.Arrays;

public class Main {
    public static byte[] bufToArray(ByteBuffer b) {
        if (b == null) {
            return null;
        } else if (b.hasArray()) {
            if (b.position() == 0 && b.arrayOffset() == 0 && b.limit() == b.capacity()) {
                return b.array();
            } else {
                return Arrays.copyOfRange(b.array(), b.arrayOffset(), b.arrayOffset() + b.remaining());
            }
        } else {
            byte[] a = new byte[b.remaining()];
            if (b.remaining() > 0) {
                int bp = b.position();
                b.get(a);
                b.position(bp);
            }
            return a;
        }
    }
}

Related

1. asByteBuffer(byte... arguments)
2. buffer2Bytes(ByteBuffer bbuf)
3. bufToArray(ByteBuffer b)
4. byteBuffer(byte[] a)
5. readByteArray(ByteBuffer byteBuffer, int length)
6. readByteArray(ByteBuffer in)