/**
* Returns a copy of the specified buffer, with the specified new size. The new size must be greater than or equal
* to the specified buffer's size. If the new size is greater than the specified buffer's size, this returns a new
* buffer which is partially filled with the contents of the specified buffer. The returned buffer is a backed by a
* direct ByteBuffer if and only if the specified buffer is direct.
*
* @param buffer the buffer to copy.
* @param newSize the new buffer's size, in shorts.
*
* @return the new buffer, with the specified size.
*
* @throws ArgumentException if the buffer is null, if the new size is negative, or if the new size is less
* than the buffer's remaing elements.
*/
public static ShortBuffer copyOf(ShortBuffer buffer, int newSize)
{
if (newSize < 0 || newSize < buffer.remaining())
{
String message = Logging.getMessage("generic.SizeOutOfRange", newSize);
Logging.logger().severe(message);
throw new ArgumentException(message);
}
ShortBuffer newBuffer = newShortBuffer(newSize, buffer.isDirect());
int pos = buffer.position(); // Save the input buffer's current position.
try
{
newBuffer.put(buffer);
newBuffer.rewind();
}
finally
{
buffer.position(pos); // Restore the input buffer's original position.
}
return(newBuffer);
}