package water.fvec;
import water.*;
/**
* The empty-compression function, if all elements fit directly on UNSIGNED bytes.
* [In particular, this is the compression style for data read in from files.]
*/
public class C1NChunk extends Chunk {
static final int OFF=0;
C1NChunk(byte[] bs) { _mem=bs; _start = -1; _len = _mem.length; }
@Override protected final long at8_impl( int i ) { return 0xFF&_mem[i]; }
@Override protected final double atd_impl( int i ) { return 0xFF&_mem[i]; }
@Override protected final boolean isNA_impl( int i ) { return false; }
@Override boolean set_impl(int i, long l ) { return false; }
@Override boolean set_impl(int i, double d) { return false; }
@Override boolean set_impl(int i, float f ) { return false; }
@Override boolean setNA_impl(int idx) { return false; }
@Override boolean hasFloat() { return false; }
@Override public AutoBuffer write(AutoBuffer bb) { return bb.putA1(_mem,_mem.length); }
@Override public C1NChunk read(AutoBuffer bb) {
_mem = bb.bufClose();
_start = -1;
_len = _mem.length;
return this;
}
@Override NewChunk inflate_impl(NewChunk nc) {
nc.alloc_exponent(len());
nc.alloc_mantissa(len());
for( int i=0; i< len(); i++ )
nc.mantissa()[i] = 0xFF&_mem[i+OFF];
nc.set_len(nc.set_sparseLen(len()));
return nc;
}
}