Java Utililty Methods ByteBuffer to Long

List of utility methods to do ByteBuffer to Long

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Description

The list of methods to do ByteBuffer to Long are organized into topic(s).

Method

longreadLong(ByteBuffer buffer)
read Long 
buffer.order(ByteOrder.LITTLE_ENDIAN);
long value = buffer.getLong();
buffer.order(ByteOrder.BIG_ENDIAN);
return value;
longreadLong(ByteBuffer buffer)
read Long 
return buffer.getLong();
longreadLong(ByteBuffer in)
read Long 
long integer = 0;
int mask = 0xff;
int shift = 0;
for (int i = 0; i < 8; i++) {
    integer |= (in.get() << shift) & mask;
    mask = mask << 8;
    shift += 8;
return integer;
longreadLong(ByteBuffer in, final int fitInBytes)
Read long which was written to fitInBytes bytes and increment position. 
long tmpLength = 0;
for (int i = 0; i < fitInBytes; ++i) {
    tmpLength |= (in.get() & 0xffl) << (8l * i);
return tmpLength;
longreadLong(ByteBuffer logBuf)
Read a long from the log. 
long ret = (logBuf.get() & 0xFFL) << 0;
ret += (logBuf.get() & 0xFFL) << 8;
ret += (logBuf.get() & 0xFFL) << 16;
ret += (logBuf.get() & 0xFFL) << 24;
ret += (logBuf.get() & 0xFFL) << 32;
ret += (logBuf.get() & 0xFFL) << 40;
ret += (logBuf.get() & 0xFFL) << 48;
ret += (logBuf.get() & 0xFFL) << 56;
...
longreadLong64ls(int size, ByteBuffer byteBuf)
read Longls 
switch (size) {
case 0:
    return 0;
case 1:
    return byteBuf.get();
case 2:
    return byteBuf.getShort();
case 3:
...
long[]readLongArray(ByteBuffer bb)
read Long Array 
long longs[] = null;
int size = bb.getInt();
if (size >= 0) {
    longs = new long[size];
    byte[] b = new byte[size * 8];
    bb.get(b);
    int l = 0;
    for (int i = 0; i < b.length;) {
...
longreadLongLE(ByteBuffer buf, int i)
read Long LE 
assert buf.order() == ByteOrder.LITTLE_ENDIAN;
return buf.getLong(i);
intreadUB1(ByteBuffer buffer)
read UB 
int ret = buffer.get() & 0xff;
return ret;
longreadUB4(ByteBuffer buffer)
read UB 
long ret = (long) (buffer.get() & 0xff);
ret |= (long) (buffer.get() & 0xff) << 8;
ret |= (long) (buffer.get() & 0xff) << 16;
ret |= (long) (buffer.get() & 0xff) << 24;
return ret;