/*
 * Copyright (c) 2016. emengjzs. All rights reserved.
 */

package emengjzs.emengdb.util;




/**
 * Utility methods for packing/unpacking primitive values in/out of byte arrays
 * using big-endian byte ordering.
 */
public class Bits {

    /*
     * Methods for unpacking primitive values from byte arrays starting at
     * given offsets.
     */

    public static boolean getBoolean(byte[] b, int off) {
        return b[off] != 0;
    }

    public static char getChar(byte[] b, int off) {
        return (char) ((b[off + 1] & 0xFF) +
                (b[off] << 8));
    }

    public static short getShort(byte[] b, int off) {
        return (short) ((b[off + 1] & 0xFF) +
                (b[off] << 8));
    }

    public static int getInt(byte[] b, int off) {
        return ((b[off + 3] & 0xFF)      ) +
                ((b[off + 2] & 0xFF) <<  8) +
                ((b[off + 1] & 0xFF) << 16) +
                ((b[off    ]       ) << 24);
    }

    public static float getFloat(byte[] b, int off) {
        return Float.intBitsToFloat(getInt(b, off));
    }

    public static long getLong(byte[] b, int off) {
        return ((b[off + 7] & 0xFFL)      ) +
                ((b[off + 6] & 0xFFL) <<  8) +
                ((b[off + 5] & 0xFFL) << 16) +
                ((b[off + 4] & 0xFFL) << 24) +
                ((b[off + 3] & 0xFFL) << 32) +
                ((b[off + 2] & 0xFFL) << 40) +
                ((b[off + 1] & 0xFFL) << 48) +
                (((long) b[off])      << 56);
    }

    public static double getDouble(byte[] b, int off) {
        return Double.longBitsToDouble(getLong(b, off));
    }

    /*
     * Methods for packing primitive values into byte arrays starting at given
     * offsets.
     */

    public static void putBoolean(byte[] b, int off, boolean val) {
        b[off] = (byte) (val ? 1 : 0);
    }

    public static void putChar(byte[] b, int off, char val) {
        b[off + 1] = (byte) (val      );
        b[off    ] = (byte) (val >>> 8);
    }

    public static void putShort(byte[] b, int off, short val) {
        b[off + 1] = (byte) (val      );
        b[off    ] = (byte) (val >>> 8);
    }

    public static void putInt(byte[] b, int off, int val) {
        b[off + 3] = (byte) (val       );
        b[off + 2] = (byte) (val >>>  8);
        b[off + 1] = (byte) (val >>> 16);
        b[off    ] = (byte) (val >>> 24);
    }

    public static void putFloat(byte[] b, int off, float val) {
        putInt(b, off,  Float.floatToIntBits(val));
    }

    public static void putLong(byte[] b, int off, long val) {
        b[off + 7] = (byte) (val       );
        b[off + 6] = (byte) (val >>>  8);
        b[off + 5] = (byte) (val >>> 16);
        b[off + 4] = (byte) (val >>> 24);
        b[off + 3] = (byte) (val >>> 32);
        b[off + 2] = (byte) (val >>> 40);
        b[off + 1] = (byte) (val >>> 48);
        b[off    ] = (byte) (val >>> 56);
    }

    public static void putDouble(byte[] b, int off, double val) {
        putLong(b, off, Double.doubleToLongBits(val));
    }
}


@@ -88,18 +88,16 @@
 util;%0A%0A%0A
-%0A%0A
 /**%0A * U
@@ -3037,12 +3037,138 @@
 );%0A    %7D
+%0A%0A    public static void putBytes(byte%5B%5D b, int off, byte%5B%5D val) %7B%0A        System.arraycopy(val, 0, b, off, val.length);%0A    %7D
 %0A%7D%0A%0A

Add method 'putBytes'