Java Utililty Methods ByteBuffer to Byte Array

List of utility methods to do ByteBuffer to Byte Array

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Description

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

Method

byte[]getBytesFromBuffer(ByteBuffer buffer, int len)
Get bytes out of a buffer, moves the buffer position to where the bytes finished 
final int start = buffer.position();
final byte[] bytes = new byte[len];
System.arraycopy(buffer.array(), start, bytes, 0, len);
buffer.position(start + len);
return bytes;
byte[]getBytesFromByteBuffer(ByteBuffer byteBuffer)
get Bytes From Byte Buffer 
byte[] bytes = new byte[byteBuffer.remaining()];
byteBuffer.get(bytes, 0, byteBuffer.remaining());
return bytes;
byte[]getBytesFromByteBuffer(Object obj)
get Bytes From Byte Buffer 
ByteBuffer buffer = (ByteBuffer) obj;
byte[] bytes = new byte[buffer.remaining()];
buffer.duplicate().get(bytes);
return bytes;
voidreadBytes(byte[] dest, int offset, int length, ByteBuffer buffer)
read Bytes 
buffer.get(dest, offset, length);
voidreadBytes(SocketChannel socketChannel, ByteBuffer byteBuffer, int length)
read Bytes 
byteBuffer.clear();
byteBuffer.limit(length);
while (byteBuffer.remaining() > 0 && socketChannel.read(byteBuffer) > 0)
    ;
if (byteBuffer.remaining() > 0) {
    throw new EOFException();
byteBuffer.flip();
...
byte[]readBytesFromByteBuffer(ByteBuffer byteBuffer)
Reads the bytes in a ByteBuffer into a byte[] 
byte[] buffer = new byte[byteBuffer.remaining()];
byteBuffer.get(buffer);
return buffer;
byte[]readBytesNoLength(ByteBuffer logBuf, int size)
Read a byte array from the log. 
if (DEBUG) {
    System.out.println("pos = " + logBuf.position() + " byteArray is " + size + " on read");
if (size == 0) {
    return ZERO_LENGTH_BYTE_ARRAY;
byte[] b = new byte[size];
logBuf.get(b); 
...
ByteBufferreadBytesWithShortLength(ByteBuffer bb)
read Bytes With Short Length 
int length = readShortLength(bb);
return readBytes(bb, length);
byte[]toArray(ByteBuffer buffer)
to Array 
byte[] dst = new byte[buffer.remaining()];
buffer.mark();
buffer.get(dst);
buffer.reset();
return dst;
byte[]toArray(ByteBuffer buffer)
Read the given byte buffer into a byte array 
return toArray(buffer, 0, buffer.limit());