Java Utililty Methods ByteBuffer Get

List of utility methods to do ByteBuffer Get

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Description

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

Method

intgetTruncatedInt(ByteBuffer bytes, int numBytes)
get Truncated Int 
if (numBytes <= 0)
    throw new IOException("too few bytes specified for truncated int value!");
else if (numBytes >= 4) {
    if (bytes.remaining() < 4)
        throw new IOException("too few bytes specified for truncated int value!");
    return bytes.getInt();
if (bytes.remaining() < numBytes)
...
intgetTsStartSyncByte(ByteBuffer packet, boolean synced)
Get the index of the sync byte of the first detected start packet. 
int returnByte = -1;
int firstSyncByte = packet.position();
if (!synced) {
    firstSyncByte = getTsSyncByte(packet);
if (firstSyncByte < 0) {
    return returnByte;
int limit = packet.remaining();
for (int i = firstSyncByte; i < limit; i += MTS_PACKET_LEN) {
    if (i + 1 > packet.remaining()) {
        break;
    int tsPayloadUnitStartIndicator = packet.get(i + 1) & 0x40;
    if (tsPayloadUnitStartIndicator != 0) {
        returnByte = i;
        break;
return returnByte;
intgetTsSyncByte(ByteBuffer packet)
Returns the index of the first a TS sync byte. 
int returnValue = -1;
if (packet.remaining() < 752) {
    return returnValue;
int limit = packet.limit();
for (int i = packet.position(); i < limit; i++) {
    if (packet.get(i) == MTS_SYNC_BYTE) {
        if (i + (MTS_PACKET_LEN * 2) < limit) {
...
intgetUByte(ByteBuffer b)
get U Byte 
return unsign(b.get());
intgetUleb128(ByteBuffer buffer)
get Uleb 
int ret = 0;
int c;
do {
    ret <<= 7;
    c = buffer.get();
    ret |= c & 0x7f;
} while ((c & 0x80) > 0);
return ret;
...
byte[]getUsedBytes(ByteBuffer bb)
get Used Bytes 
byte[] data = bb.array();
byte[] remain = new byte[bb.position()];
System.arraycopy(data, 0, remain, 0, remain.length);
return remain;
StringgetUTF8FromByteBuffer(ByteBuffer bb)
get UTF From Byte Buffer 
Charset charset = Charset.forName("UTF-8");
CharsetDecoder decoder = charset.newDecoder();
try {
    return decoder.decode(bb).toString();
} catch (Exception e) {
    e.printStackTrace();
return null;
...
UUIDgetUUID(ByteBuffer bytes)
get UUID 
if (bytes.remaining() < 16)
    throw new IOException("too few bytes specified for UUID value!");
long msb = bytes.getLong();
long lsb = bytes.getLong();
UUID value = new UUID(msb, lsb);
return value;
doublegetVariance(ByteBuffer simulationResults)
get Variance 
double mean = getMean(simulationResults);
double temp = 0.0;
int size = simulationResults.capacity() / 8;
simulationResults.rewind();
for (int i = 0; i < size; i++) {
    double f = simulationResults.getDouble();
    temp += (mean - f) * (mean - f);
return (temp / size);
intgetVInt(ByteBuffer bf, int index)
get V Int 
byte b = bf.get(index++);
int i = b & 0x7F;
for (int shift = 7; (b & 0x80) != 0; shift += 7) {
    b = bf.get(index++);
    i |= (b & 0x7F) << shift;
return i;