public virtual float ParseFloat(System.String val)
{
int shift = val[0] - NumericUtils.SHIFT_START_INT;
if (shift > 0 && shift <= 31)
{
throw new FieldCacheImpl.StopFillCacheException();
}
return(NumericUtils.SortableIntToFloat(NumericUtils.PrefixCodedToInt(val)));
}
public override DocIdSet GetDocIdSet(IndexReader reader)
{
// we transform the floating point numbers to sortable integers
// using NumericUtils to easier find the next bigger/lower value
float inclusiveLowerPoint;
float inclusiveUpperPoint;
if (lowerVal != null)
{
float f = System.Convert.ToSingle(((System.ValueType)lowerVal));
if (!includeUpper && f > 0.0f && System.Single.IsInfinity(f))
{
return(DocIdSet.EMPTY_DOCIDSET);
}
int i = NumericUtils.FloatToSortableInt(f);
inclusiveLowerPoint = NumericUtils.SortableIntToFloat(includeLower?i:(i + 1));
}
else
{
inclusiveLowerPoint = System.Single.NegativeInfinity;
}
if (upperVal != null)
{
float f = System.Convert.ToSingle(((System.ValueType)upperVal));
if (!includeUpper && f < 0.0f && System.Single.IsInfinity(f))
{
return(DocIdSet.EMPTY_DOCIDSET);
}
int i = NumericUtils.FloatToSortableInt(f);
inclusiveUpperPoint = NumericUtils.SortableIntToFloat(includeUpper?i:(i - 1));
}
else
{
inclusiveUpperPoint = System.Single.PositiveInfinity;
}
if (inclusiveLowerPoint > inclusiveUpperPoint)
{
return(DocIdSet.EMPTY_DOCIDSET);
}
float[] values = Mono.Lucene.Net.Search.FieldCache_Fields.DEFAULT.GetFloats(reader, field, (Mono.Lucene.Net.Search.FloatParser)parser);
// we only request the usage of termDocs, if the range contains 0
return(new AnonymousClassFieldCacheDocIdSet(values, inclusiveLowerPoint, inclusiveUpperPoint, this, reader, (inclusiveLowerPoint <= 0.0f && inclusiveUpperPoint >= 0.0f)));
}