Java Convert via ByteBuffer to32BitsLongArray(byte[] data, boolean bigEndian)

Description

to Bits Long Array

License

Open Source License

Declaration

public static int[] to32BitsLongArray(byte[] data, boolean bigEndian) 

Method Source Code

//package com.java2s;
/**/*from   w  ww .  j a  v  a 2s  .  co m*/
 * Copyright (c) 2014-2015 by Wen Yu.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Any modifications to this file must keep this entire header intact.
 * 
 * Change History - most recent changes go on top of previous changes
 *
 * ArrayUtils.java
 *
 * Who   Date       Description
 * ====  =========  ======================================================================
 * WY    06Apr2015  Added reverse(byte[]) to reverse byte array elements
 * WY    06Jan2015  Added reverse() to reverse array elements
 * WY    10Dec2014  Moved reverseBits() from IMGUtils to here along with BIT_REVERSE_TABLE
 * WY    08Dec2014  Fixed bug for flipEndian() with more than 32 bit sample data 
 * WY    07Dec2014  Changed method names for byte array to other array types conversion
 * WY    07Dec2014  Added new methods to work with floating point TIFF images
 * WY    03Dec2014  Added byteArrayToFloatArray() and byteArrayToDoubleArray()
 * WY    25Nov2014  Added removeDuplicates() to sort and remove duplicates from int arrays
 * WY    12Nov2014  Changed the argument sequence for flipEndian()
 * WY    11Nov2014  Changed flipEndian() to include scan line stride to skip bits
 * WY    11Nov2014  Added toNBits() to convert byte array to nBits data unit
 * WY    28Oct2014  Added flipEndian() to work with TIFTweaker mergeTiffImagesEx()
 */

import java.nio.ByteOrder;

import java.nio.ByteBuffer;

import java.nio.LongBuffer;

public class Main {
    public static int[] to32BitsLongArray(byte[] data, boolean bigEndian) {
        ByteBuffer byteBuffer = ByteBuffer.wrap(data);

        if (bigEndian) {
            byteBuffer.order(ByteOrder.BIG_ENDIAN);
        } else {
            byteBuffer.order(ByteOrder.LITTLE_ENDIAN);
        }

        LongBuffer longBuf = byteBuffer.asLongBuffer();
        long[] array = new long[longBuf.remaining()];
        longBuf.get(array);

        int[] iArray = new int[array.length];

        int i = 0;

        for (long l : array) {
            iArray[i++] = (int) l;
        }

        return iArray;
    }
}

Related

1. stringToBytes(String str)
2. StringToData(String conv, boolean isRe, int number)
3. stringToIpAddress(String s)
4. stringToLong(String offsetString)
5. stringToLongUnknownLength(String str, int startIndex)
6. toArray(final byte[] byteArray, final int sizeLimit)
7. toArray(int value)
8. toArray(IntBuffer src, int[] dst, int offset)
9. toArray(long length)