Java ByteBuffer Capacity newByteBuffer(int margin, int capacity)

Description

new Byte Buffer

License

Open Source License

Declaration

public static ByteBuffer newByteBuffer(int margin, int capacity) 

Method Source Code

//package com.java2s;
/*/*from w  w  w  .j  a  va2s . c  o  m*/
 * ByteBufferUtil.java - An utility for ByteBuffer.
 * 
 * Copyright (c) 2009-2015 PIAX development team
 * Copyright (c) 2006-2008 Osaka University
 * Copyright (c) 2004-2005 BBR Inc, Osaka University
 * 
 * Permission is hereby granted, free of charge, to any person obtaining 
 * a copy of this software and associated documentation files (the 
 * "Software"), to deal in the Software without restriction, including 
 * without limitation the rights to use, copy, modify, merge, publish, 
 * distribute, sublicense, and/or sell copies of the Software, and to 
 * permit persons to whom the Software is furnished to do so, subject to 
 * the following conditions:
 * 
 * The above copyright notice and this permission notice shall be 
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 * $Id: ByteBufferUtil.java 1176 2015-05-23 05:56:40Z teranisi $
 */

import java.nio.ByteBuffer;

public class Main {
    static final int DEFAULT_HEADER_MARGIN = 256;

    public static ByteBuffer newByteBuffer(int margin, int capacity) {
        ByteBuffer b = ByteBuffer.wrap(new byte[margin + capacity]);
        b.position(margin);
        b.mark(); // set mark to HEAD_MARGIN
        return b;
    }

    public static ByteBuffer newByteBuffer(int capacity) {
        return newByteBuffer(DEFAULT_HEADER_MARGIN, capacity);
    }

    public static void mark(ByteBuffer b) {
        b.mark(); // mark = position
    }
}

Related

1. grow(ByteBuffer buffer, int minCapacityIncrease)
2. growBuffer(ByteBuffer b, int newCapacity)
3. increaseCapacity(ByteBuffer buffer, int size)
4. leByteBuffer(int capacity)
5. nativeByteBuffer(int capacity)
6. parseToByteBuffer(int capacity, String value)
7. resetAddressAndCapacity(final ByteBuffer byteBuffer, final long address, final int capacity)