public override FacetResult GetTopChildren(int topN, string dim, params string[] path)
{
if (topN <= 0)
{
throw new System.ArgumentException("topN must be > 0 (got: " + topN + ")");
}
var dimConfig = VerifyDim(dim);
FacetLabel cp = new FacetLabel(dim, path);
int dimOrd = m_taxoReader.GetOrdinal(cp);
if (dimOrd == -1)
{
return(null);
}
TopOrdAndInt32Queue q = new TopOrdAndInt32Queue(Math.Min(m_taxoReader.Count, topN));
int bottomValue = 0;
int ord = m_children[dimOrd];
int totValue = 0;
int childCount = 0;
TopOrdAndInt32Queue.OrdAndValue reuse = null;
while (ord != TaxonomyReader.INVALID_ORDINAL)
{
if (m_values[ord] > 0)
{
totValue += m_values[ord];
childCount++;
if (m_values[ord] > bottomValue)
{
if (reuse == null)
{
reuse = new TopOrdAndInt32Queue.OrdAndValue();
}
reuse.Ord = ord;
reuse.Value = m_values[ord];
reuse = q.InsertWithOverflow(reuse);
if (q.Count == topN)
{
bottomValue = q.Top.Value;
}
}
}
ord = m_siblings[ord];
}
if (totValue == 0)
{
return(null);
}
if (dimConfig.IsMultiValued)
{
if (dimConfig.RequireDimCount)
{
totValue = m_values[dimOrd];
}
else
{
// Our sum'd value is not correct, in general:
totValue = -1;
}
}
else
{
// Our sum'd dim value is accurate, so we keep it
}
LabelAndValue[] labelValues = new LabelAndValue[q.Count];
for (int i = labelValues.Length - 1; i >= 0; i--)
{
TopOrdAndInt32Queue.OrdAndValue ordAndValue = q.Pop();
FacetLabel child = m_taxoReader.GetPath(ordAndValue.Ord);
labelValues[i] = new LabelAndValue(child.Components[cp.Length], ordAndValue.Value);
}
return(new FacetResult(dim, path, totValue, labelValues, childCount));
}
public override FacetResult GetTopChildren(int topN, string dim, params string[] path)
{
if (topN <= 0)
{
throw new ArgumentOutOfRangeException(nameof(topN), "topN must be > 0 (got: " + topN + ")"); // LUCENENET specific - changed from IllegalArgumentException to ArgumentOutOfRangeException (.NET convention)
}
var dimConfig = VerifyDim(dim);
FacetLabel cp = new FacetLabel(dim, path);
int dimOrd = m_taxoReader.GetOrdinal(cp);
if (dimOrd == -1)
{
return(null);
}
TopOrdAndInt32Queue q = new TopOrdAndInt32Queue(Math.Min(m_taxoReader.Count, topN));
int bottomValue = 0;
int ord = m_children[dimOrd];
int totValue = 0;
int childCount = 0;
while (ord != TaxonomyReader.INVALID_ORDINAL)
{
if (m_values[ord] > 0)
{
totValue += m_values[ord];
childCount++;
if (m_values[ord] > bottomValue)
{
// LUCENENET specific - use struct instead of reusing class instance for better performance
q.Insert(new OrdAndValue <int>(ord, m_values[ord]));
if (q.Count == topN)
{
bottomValue = q.Top.Value;
}
}
}
ord = m_siblings[ord];
}
if (totValue == 0)
{
return(null);
}
if (dimConfig.IsMultiValued)
{
if (dimConfig.RequireDimCount)
{
totValue = m_values[dimOrd];
}
else
{
// Our sum'd value is not correct, in general:
totValue = -1;
}
}
else
{
// Our sum'd dim value is accurate, so we keep it
}
LabelAndValue[] labelValues = new LabelAndValue[q.Count];
for (int i = labelValues.Length - 1; i >= 0; i--)
{
var ordAndValue = q.Pop();
FacetLabel child = m_taxoReader.GetPath(ordAndValue.Ord);
labelValues[i] = new LabelAndValue(child.Components[cp.Length], ordAndValue.Value);
}
return(new FacetResult(dim, path, totValue, labelValues, childCount));
}
