Java BitSet to bitSet2extendedByte(BitSet b)

Description

Converts a BitSet into an extended binary field used in pack routines.

License

Open Source License

Parameter

Parameter	Description
b	the BitSet

Return

binary representation

Declaration

public static byte[] bitSet2extendedByte(BitSet b) 

Method Source Code

//package com.java2s;
/*//from w  w  w  .  j a v a 2 s . c o  m
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2012 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.BitSet;

public class Main {
    /**
     * Converts a BitSet into an extended binary field used in pack routines.
     * The result is always in the extended format: (16 bytes of length) <br>
     * <br>
     * 
     * @param b the BitSet
     * @return binary representation
     */
    public static byte[] bitSet2extendedByte(BitSet b) {
        int len = 128;
        byte[] d = new byte[len >> 3];
        for (int i = 0; i < len; i++)
            if (b.get(i + 1))
                d[i >> 3] |= (0x80 >> (i % 8));
        d[0] |= 0x80;
        return d;
    }
}

Related

1. Bitset2BitString(BitSet bitset, int length)
2. bitSet2byte(BitSet b, int bytes)
3. bitset2bytes(BitSet bits, byte[] bytes)
4. bitSet2Int(BitSet bs)
5. bitsetToDoubleArray(BitSet bs, int n)
6. bitsetToIndices(BitSet bits)
7. bitSetToInt(final BitSet bitSet)