Package org.apache.lucene.facet

Examples of org.apache.lucene.facet.TopOrdAndFloatQueue


    int dimOrd = taxoReader.getOrdinal(cp);
    if (dimOrd == -1) {
      return null;
    }

    TopOrdAndFloatQueue q = new TopOrdAndFloatQueue(Math.min(taxoReader.getSize(), topN));
    float bottomValue = 0;

    int ord = children[dimOrd];
    float sumValues = 0;
    int childCount = 0;

    TopOrdAndFloatQueue.OrdAndValue reuse = null;
    while(ord != TaxonomyReader.INVALID_ORDINAL) {
      if (values[ord] > 0) {
        sumValues += values[ord];
        childCount++;
        if (values[ord] > bottomValue) {
          if (reuse == null) {
            reuse = new TopOrdAndFloatQueue.OrdAndValue();
          }
          reuse.ord = ord;
          reuse.value = values[ord];
          reuse = q.insertWithOverflow(reuse);
          if (q.size() == topN) {
            bottomValue = q.top().value;
          }
        }
      }

      ord = siblings[ord];
    }

    if (sumValues == 0) {
      return null;
    }

    if (dimConfig.multiValued) {
      if (dimConfig.requireDimCount) {
        sumValues = values[dimOrd];
      } else {
        // Our sum'd count is not correct, in general:
        sumValues = -1;
      }
    } else {
      // Our sum'd dim count is accurate, so we keep it
    }

    LabelAndValue[] labelValues = new LabelAndValue[q.size()];
    for(int i=labelValues.length-1;i>=0;i--) {
      TopOrdAndFloatQueue.OrdAndValue ordAndValue = q.pop();
      FacetLabel child = taxoReader.getPath(ordAndValue.ord);
      labelValues[i] = new LabelAndValue(child.components[cp.length], ordAndValue.value);
    }

    return new FacetResult(dim, path, sumValues, labelValues, childCount);
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