Java Utililty Methods BitSet Convert

List of utility methods to do BitSet Convert

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Description

The list of methods to do BitSet Convert are organized into topic(s).

Method

byte[]bitSet2byte(BitSet b)
converts a BitSet into a binary field used in pack routines This method will set bits 0 (and 65) if there's a secondary (and tertiary) bitmap (i.e., if the bitmap length is > 64 (and > 128)) 
int len = b.length() + 62 >> 6 << 6; 
byte[] d = new byte[len >> 3];
for (int i = 0; i < len; i++)
    if (b.get(i + 1)) 
        d[i >> 3] |= 0x80 >> i % 8;
if (len > 64)
    d[0] |= 0x80;
if (len > 128)
...
byte[]bitSet2extendedByte(BitSet b)
Converts a BitSet into an extended binary field used in pack routines. 
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;
intbitSet2Int(BitSet bs)
bit Set Int 
int total = 0;
int b = bs.length() - 1;
if (b > 0) {
    int value = (int) Math.pow(2, b);
    for (int i = 0; i <= b; i++) {
        if (bs.get(i))
            total += value;
        value = value >> 1;
...
StringbitSet2String(BitSet b)
bit representation of a BitSet suitable for dumps and debugging 
int len = b.size(); 
len = len > 128 ? 128 : len; 
StringBuilder d = new StringBuilder(len);
for (int i = 0; i < len; i++)
    d.append(b.get(i) ? '1' : '0');
return d.toString();