public override Explanation Explain(AtomicReaderContext context, int docid)
{
BoboSegmentReader boboReader = (BoboSegmentReader)context.Reader;
IFacetHandler fhandler = boboReader.GetFacetHandler(m_parent.m_name);
if (fhandler != null)
{
BoboDocScorer scorer = null;
if (fhandler is IFacetScoreable)
{
scorer = ((IFacetScoreable)fhandler).GetDocScorer(boboReader, m_parent.m_scoringFactory, m_parent.m_boostMap);
Explanation exp1 = scorer.Explain(docid);
Explanation exp2 = new Explanation(m_parent.Boost, "boost");
Explanation expl = new Explanation();
expl.Description = "product of:";
expl.Value = (exp1.Value * exp2.Value);
expl.AddDetail(exp1);
expl.AddDetail(exp2);
return(expl);
}
else
{
return(null);
}
}
return(null);
}
public FacetTermScorer(FacetTermQuery parent, Similarity similarity, DocIdSetIterator docidsetIter, BoboDocScorer scorer)
: base(new FacetTermWeight(parent, similarity))
{
m_parent = parent;
m_docSetIter = docidsetIter;
m_scorer = scorer;
}
public FacetTermScorer(FacetTermQuery parent, Similarity similarity, DocIdSetIterator docidsetIter, BoboDocScorer scorer)
: base(similarity)
{
_parent = parent;
_docSetIter = docidsetIter;
_scorer = scorer;
}
// NOTE: The Weight.Scorer method lost the scoreDocsInOrder and topScorer parameters between
// Lucene 4.3.0 and 4.8.0. They are not used by BoboBrowse anyway, so the code here diverges
// from the original Java source to remove these two parameters.
// public override Scorer Scorer(AtomicReaderContext context, bool scoreDocsInOrder, bool topScorer, Bits acceptDocs)
public override Scorer GetScorer(AtomicReaderContext context, IBits acceptDocs)
{
AtomicReader reader = context.AtomicReader;
if (reader is BoboSegmentReader)
{
BoboSegmentReader boboReader = (BoboSegmentReader)reader;
IFacetHandler fhandler = boboReader.GetFacetHandler(m_parent.m_name);
if (fhandler != null)
{
DocIdSetIterator dociter = null;
RandomAccessFilter filter = fhandler.BuildFilter(m_parent.m_sel);
if (filter != null)
{
RandomAccessDocIdSet docset = filter.GetRandomAccessDocIdSet(boboReader);
if (docset != null)
{
dociter = BuildIterator(docset, boboReader, acceptDocs);
}
}
if (dociter == null)
{
dociter = new MatchAllDocIdSetIterator(reader, acceptDocs);
}
BoboDocScorer scorer = null;
if (fhandler is IFacetScoreable)
{
scorer = ((IFacetScoreable)fhandler).GetDocScorer(boboReader, m_parent.m_scoringFactory, m_parent.m_boostMap);
}
return(new FacetTermScorer(m_parent, m_similarity, dociter, scorer));
}
else
{
logger.Error("FacetHandler is not defined for the field: " + m_parent.m_name);
}
return(null);
}
else
{
throw new IOException("index reader not instance of " + typeof(BoboSegmentReader));
}
}
public override Scorer Scorer(IndexReader reader, bool scoreDocsInOrder, bool topScorer)
{
if (reader is BoboIndexReader)
{
BoboIndexReader boboReader = (BoboIndexReader)reader;
TermDocs termDocs = boboReader.TermDocs(null);
IFacetHandler fhandler = boboReader.GetFacetHandler(parent._name);
if (fhandler != null)
{
DocIdSetIterator dociter = null;
RandomAccessFilter filter = fhandler.BuildFilter(parent._sel);
if (filter != null)
{
RandomAccessDocIdSet docset = filter.GetRandomAccessDocIdSet(boboReader);
if (docset != null)
{
dociter = BuildIterator(docset, termDocs);
}
}
if (dociter == null)
{
dociter = new MatchAllDocIdSetIterator(reader);
}
BoboDocScorer scorer = null;
if (fhandler is IFacetScoreable)
{
scorer = ((IFacetScoreable)fhandler).GetDocScorer(boboReader, parent._scoringFactory, parent._boostMap);
}
return(new FacetTermScorer(parent, _similarity, dociter, scorer));
}
else
{
logger.Error("FacetHandler is not defined for the field: " + parent._name);
}
return(null);
}
else
{
throw new IOException("index reader not instance of " + typeof(BoboIndexReader));
}
}
public FacetTermScorer(FacetTermQuery parent, Similarity similarity, DocIdSetIterator docidsetIter, BoboDocScorer scorer)
: base(similarity)
{
_parent = parent;
_docSetIter = docidsetIter;
_scorer = scorer;
}
protected internal FacetTermScorer(Similarity similarity, DocIdSetIterator docidsetIter, BoboDocScorer scorer)
: base(similarity)
{
docSetIter = docidsetIter;
this.scorer = scorer;
}
