Java Utililty Methods ByteBuffer to Int

List of utility methods to do ByteBuffer to Int

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Description

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

Method

intreadInt8(final ByteBuffer buffer)
read Int 
int value = 0;
for (int shVal = 0, octet = 0x80; (octet & 0x80) != 0; shVal += 7) {
    if (!buffer.hasRemaining()) {
        throw new EOFException();
    octet = buffer.get();
    value |= ((octet & 0x7F) << shVal);
return value;
booleanreadIntEquals(ByteBuffer buf, int i, int j)
read Int Equals 
return buf.getInt(i) == buf.getInt(j);
intreadIntLE(ByteBuffer buf, int i)
read Int LE 
assert buf.order() == ByteOrder.LITTLE_ENDIAN;
return buf.getInt(i);
intreadIntMSB(ByteBuffer logBuf)
Read a int from the log in MSB order. 
int ret = (logBuf.get() & 0xFF) << 24;
ret += (logBuf.get() & 0xFF) << 16;
ret += (logBuf.get() & 0xFF) << 8;
ret += (logBuf.get() & 0xFF) << 0;
return ret;
intreadIntoBuffer(SocketChannel channel, ByteBuffer buf, int sleepMsecs)
read Into Buffer 
if (channel == null) {
    return -1;
buf.clear();
int totRead = 0;
while (totRead < buf.capacity()) {
    int nRead;
    try {
...
int[]readInts(final ByteBuffer bb, final int length)
read Ints 
final int[] result = new int[length];
for (int index = 0; index < length; index++) {
    result[index] = bb.getInt();
return result;
voidreadInts4(final ByteBuffer buffer, final int[] array, final int count)
read Ints 
readInts4(buffer, array, count, 0);
intreadUnsigned(ByteBuffer in, int size)
read Unsigned 
int integer = 0;
int mask = 0xff;
int shift = 0;
for (int i = 0; i < size; i++) {
    integer |= (in.get() << shift) & mask;
    mask = mask << 8;
    shift += 8;
return integer;
intreadUnsignedByte(ByteBuffer buffer)
read Unsigned Byte 
return convertByteToUnsigned(buffer.get());
longreadUnsignedInt(ByteBuffer buf)
Unmarshall the next four bytes which hold an unsigned int into a long. 
long ret = (buf.get() & 0xFFL) << 0;
ret += (buf.get() & 0xFFL) << 8;
ret += (buf.get() & 0xFFL) << 16;
ret += (buf.get() & 0xFFL) << 24;
return ret;