Java Utililty Methods ByteBuffer Set

List of utility methods to do ByteBuffer Set

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ByteBuffer Set

Description

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

Method

void arrayCopy(ByteBuffer buffer, int position, byte[] bytes, int offset, int length)
array Copy

if (buffer.hasArray())
 System.arraycopy(buffer.array(), buffer.arrayOffset() + position, bytes, offset, length);
else
 ((ByteBuffer) buffer.duplicate().position(position)).get(bytes, offset, length);

Collection base64FormatOfBinarySet(Collection bs)
Returns a base-64 string of the given bytes

List<String> base64Strings = new LinkedList<String>();
for (ByteBuffer b : bs) {
 base64Strings.add(base64Format(b));
return base64Strings;

boolean blockCopy(ByteBuffer source, int srcOffset, byte[] dest, int destOffset, int count)
block Copy

if ((source == null) || (dest == null))
 return false;
if ((srcOffset < 0) || (destOffset < 0) || (count <= 0))
 return false;
if ((source.limit() - srcOffset) < count)
 return false;
if ((dest.length - destOffset) < count)
 return false;
...

String byteBuffersToString(ByteBuffer[] bufs, Charset cs)
byte Buffers To String

CharsetDecoder cd = cs.newDecoder();
int len = 0;
for (ByteBuffer buf : bufs) {
 len += buf.remaining();
int en = (int) (len * (double) cd.maxCharsPerByte());
char[] ca = new char[en];
cd.reset();
...

int byteIndexOf(ByteBuffer buffer, byte[] temp, int offset)
byte Index Of

int i;
if (temp.length == 0) {
 return 0;
int end = buffer.limit() - temp.length;
if (end < 0) {
 return -1;
int start = buffer.position() + offset;
if (start > end) {
 return -1;
if (start < 0) {
 start = 0;
byte[] b = buffer.array();
Search: for (i = start; i < end; i++) {
 if (b[i] != temp[0]) {
 continue;
 int k = 1;
 while (k < temp.length) {
 if (b[k + i] != temp[k]) {
 continue Search;
 k++;
 return i;
return -1;

ByteBuffer c_memset(ByteBuffer b, int c_, int size)
memset

byte c = (byte) c_;
ByteBuffer b2 = b.duplicate();
while (size-- != 0) {
 b2.put(c);
return b;

ByteBuffer charSequence2ByteBuffer(CharSequence cs, Charset charset)
char Sequence Byte Buffer

return charset.encode(CharBuffer.wrap(cs));

int charstoUTF8Bytes(char[] srcBuf, int srcOffset, int srcLength, ByteBuffer dest, int destOffset)
Custom UTF-8 encoding.

int destMark = destOffset;
for (int i = srcOffset; i < srcLength;) {
 char ch = srcBuf[i];
 if (ch < 0x0080) {
 dest.put(destOffset++, (byte) ch);
 } else if (ch < 0x0800) {
 dest.put(destOffset++, (byte) (0xc0 | (ch >> 6)));
 dest.put(destOffset++, (byte) (0x80 | ((ch >> 0) & 0x3f)));
...

boolean equals(final ByteBuffer keyValue, final int offset, final int keyLen, final byte[] otherKey)
Equals.

for (int i = offset; i < offset + keyLen; i++) {
 if (keyValue.get(i) != otherKey[i - offset])
 return false;
return true;

int find(ByteBuffer buffer, int offset, byte searchKey)
find

for (int i = buffer.position() + offset; i < buffer.limit(); i++) {
 byte nextByte = buffer.get(i);
 if (nextByte == searchKey) {
 return i;
return -1;