/**
* Decodes the specified {@link ByteBuffer} into a {@link Sector} object.
*
* @param buf The buffer.
* @return The sector.
*/
public static Sector decodeExtended(ByteBuffer buf) {
if (buf.remaining() != SIZE) throw new IllegalArgumentException();
int id = buf.getInt();
int chunk = buf.getShort() & 0xFFFF;
int nextSector = ByteBufferUtils.getMedium(buf);
int type = buf.get() & 0xFF;
byte[] data = new byte[EXTENDED_DATA_SIZE];
buf.get(data);
return new Sector(type, id, chunk, nextSector, data);
}
/**
* Encodes this sector into a {@link ByteBuffer}.
*
* @return The encoded buffer.
*/
public ByteBuffer encode() {
ByteBuffer buf = ByteBuffer.allocate(SIZE);
if (id > 65535) {
buf.putInt(id);
} else {
buf.putShort((short) id);
}
buf.putShort((short) chunk);
ByteBufferUtils.putMedium(buf, nextSector);
buf.put((byte) type);
buf.put(data);
return (ByteBuffer) buf.flip();
}