Java Byte Array Create toByteArray(byte byteArray)

Description

to Byte Array

License

Open Source License

Declaration

public static byte[] toByteArray(byte byteArray)

Method Source Code

//package com.java2s;
/**/*from w w  w  . j av a  2s.  c  o m*/
 * Copyright 2007 DFKI GmbH.
 * All Rights Reserved.  Use is subject to license terms.
 *
 * This file is part of MARY TTS.
 *
 * MARY TTS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

public class Main {
    public static byte[] toByteArray(byte byteArray) {
        return new byte[] { byteArray };
    }

    public static byte[] toByteArray(byte[] byteArray) {
        return byteArray;
    }

    public static byte[] toByteArray(short data) {
        return new byte[] { (byte) ((data >> 8) & 0xff), (byte) ((data >> 0) & 0xff), };
    }

    public static byte[] toByteArray(short[] data) {
        if (data == null)
            return null;

        byte[] byts = new byte[data.length * 2];

        for (int i = 0; i < data.length; i++)
            System.arraycopy(toByteArray(data[i]), 0, byts, i * 2, 2);

        return byts;
    }

    public static byte[] toByteArray(char data) {
        return new byte[] { (byte) ((data >> 8) & 0xff), (byte) ((data >> 0) & 0xff), };
    }

    public static byte[] toByteArray(char[] data) {
        if (data == null)
            return null;

        byte[] byts = new byte[data.length * 2];

        for (int i = 0; i < data.length; i++)
            System.arraycopy(toByteArray(data[i]), 0, byts, i * 2, 2);

        return byts;
    }

    public static byte[] toByteArray(int data) {
        return new byte[] { (byte) ((data >> 24) & 0xff), (byte) ((data >> 16) & 0xff), (byte) ((data >> 8) & 0xff),
                (byte) ((data >> 0) & 0xff), };
    }

    public static byte[] toByteArray(int[] data) {
        if (data == null)
            return null;

        byte[] byts = new byte[data.length * 4];

        for (int i = 0; i < data.length; i++)
            System.arraycopy(toByteArray(data[i]), 0, byts, i * 4, 4);

        return byts;
    }

    public static byte[] toByteArray(long data) {
        return new byte[] { (byte) ((data >> 56) & 0xff), (byte) ((data >> 48) & 0xff),
                (byte) ((data >> 40) & 0xff), (byte) ((data >> 32) & 0xff), (byte) ((data >> 24) & 0xff),
                (byte) ((data >> 16) & 0xff), (byte) ((data >> 8) & 0xff), (byte) ((data >> 0) & 0xff), };
    }

    public static byte[] toByteArray(long[] data) {
        if (data == null)
            return null;

        byte[] byts = new byte[data.length * 8];

        for (int i = 0; i < data.length; i++)
            System.arraycopy(toByteArray(data[i]), 0, byts, i * 8, 8);

        return byts;
    }

    public static byte[] toByteArray(float data) {
        return toByteArray(Float.floatToRawIntBits(data));
    }

    public static byte[] toByteArray(float[] data) {
        if (data == null)
            return null;

        byte[] byts = new byte[data.length * 4];

        for (int i = 0; i < data.length; i++)
            System.arraycopy(toByteArray(data[i]), 0, byts, i * 4, 4);

        return byts;
    }

    public static byte[] toByteArray(double data) {
        return toByteArray(Double.doubleToRawLongBits(data));
    }

    public static byte[] toByteArray(double[] data) {
        if (data == null)
            return null;

        byte[] byts = new byte[data.length * 8];

        for (int i = 0; i < data.length; i++)
            System.arraycopy(toByteArray(data[i]), 0, byts, i * 8, 8);

        return byts;
    }

    public static byte[] toByteArray(boolean data) {
        return new byte[] { (byte) (data ? 0x01 : 0x00) };
    }

    public static byte[] toByteArray(boolean[] data) {
        if (data == null)
            return null;

        int len = data.length;
        byte[] lena = toByteArray(len);
        byte[] byts = new byte[lena.length + (len / 8) + (len % 8 != 0 ? 1 : 0)];

        System.arraycopy(lena, 0, byts, 0, lena.length);

        for (int i = 0, j = lena.length, k = 7; i < data.length; i++) {
            byts[j] |= (data[i] ? 1 : 0) << k--;
            if (k < 0) {
                j++;
                k = 7;
            }
        }

        return byts;
    }

    public static byte[] toByteArray(String data) {
        return (data == null) ? null : data.getBytes();
    }

    public static byte[] toByteArray(String[] data) {
        if (data == null)
            return null;

        int totalLength = 0;
        int bytesPos = 0;

        byte[] dLen = toByteArray(data.length);
        totalLength += dLen.length;

        int[] sLens = new int[data.length];
        totalLength += (sLens.length * 4);
        byte[][] strs = new byte[data.length][];

        for (int i = 0; i < data.length; i++) {
            if (data[i] != null) {
                strs[i] = toByteArray(data[i]);
                sLens[i] = strs[i].length;
                totalLength += strs[i].length;
            } else {
                sLens[i] = 0;
                strs[i] = new byte[0];
            }
        }

        byte[] bytes = new byte[totalLength];
        System.arraycopy(dLen, 0, bytes, 0, 4);

        byte[] bsLens = toByteArray(sLens);
        System.arraycopy(bsLens, 0, bytes, 4, bsLens.length);

        bytesPos += 4 + bsLens.length; // mark position

        for (byte[] sba : strs) {
            System.arraycopy(sba, 0, bytes, bytesPos, sba.length);
            bytesPos += sba.length;
        }

        return bytes;
    }
}

Java Byte Array Create toByteArray(byte byteArray)

Description

License

Declaration

Method Source Code

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