package water.fvec;
import water.*;
/**
* The empty-compression function, where data is in 'float's.
*/
public class C4FChunk extends Chunk {
C4FChunk( byte[] bs ) { _mem=bs; _start = -1; _len = _mem.length>>2; }
@Override protected final long at8_impl( int i ) {
float res = UDP.get4f(_mem,i<<2);
if( Float.isNaN(res) ) throw new IllegalArgumentException("at8 but value is missing");
return (long)res;
}
@Override protected final double atd_impl( int i ) {
float res = UDP.get4f(_mem,i<<2);
return Float.isNaN(res)?Double.NaN:res;
}
@Override protected final boolean isNA_impl( int i ) { return Float.isNaN(UDP.get4f(_mem,i<<2)); }
@Override boolean set_impl(int idx, long l) { return false; }
@Override boolean set_impl(int i, double d) { return false; }
@Override boolean set_impl(int i, float f ) {
UDP.set4f(_mem,i<<2,f);
return true;
}
@Override boolean setNA_impl(int idx) { UDP.set4f(_mem,(idx<<2),Float.NaN); return true; }
@Override boolean hasFloat() { return true; }
@Override public AutoBuffer write(AutoBuffer bb) { return bb.putA1(_mem,_mem.length); }
@Override public C4FChunk read(AutoBuffer bb) {
_mem = bb.bufClose();
_start = -1;
_len = _mem.length>>2;
assert _mem.length == _len<<2;
return this;
}
@Override NewChunk inflate_impl(NewChunk nc) {
nc.set_len(nc.set_sparseLen(0));
final int len = len();
for( int i=0; i<len; i++ ) {
float res = UDP.get4f(_mem,(i<<2));
if( Float.isNaN(res) ) nc.addNum(Double.NaN);
else nc.addNum(res);
}
return nc;
}
// 3.3333333e33
public int pformat_len0() { return 14; }
public String pformat0() { return "% 13.7e"; }
}