public virtual void SetNextReader(AtomicReaderContext context)
{
foreach (ICollector c in collectors)
{
c.SetNextReader(context);
}
}
public DocIdSetAnonymousInnerClassHelper(QueryWrapperFilter outerInstance, IBits acceptDocs, AtomicReaderContext privateContext, Lucene.Net.Search.Weight weight)
{
this.outerInstance = outerInstance;
this.acceptDocs = acceptDocs;
this.privateContext = privateContext;
this.weight = weight;
}
public override DocIdSet GetDocIdSet(AtomicReaderContext context, IBits acceptDocs)
{
SortedDocValues fcsi = FieldCache.GetTermsIndex((context.AtomicReader), field);
FixedBitSet bits = new FixedBitSet(fcsi.ValueCount);
for (int i = 0; i < terms.Length; i++)
{
int ord = fcsi.LookupTerm(terms[i]);
if (ord >= 0)
{
bits.Set(ord);
}
}
return(new FieldCacheDocIdSet(context.Reader.MaxDoc, acceptDocs, (doc) =>
{
int ord = fcsi.GetOrd(doc);
if (ord == -1)
{
// missing
return false;
}
else
{
return bits.Get(ord);
}
}));
}
public override DocIdSet GetDocIdSet(AtomicReaderContext context, IBits acceptDocs)
{
// get a private context that is used to rewrite, createWeight and score eventually
AtomicReaderContext privateContext = context.AtomicReader.AtomicContext;
Weight weight = (new IndexSearcher(privateContext)).CreateNormalizedWeight(query);
return(new DocIdSetAnonymousInnerClassHelper(this, acceptDocs, privateContext, weight));
}
public override SimScorer GetSimScorer(SimWeight stats, AtomicReaderContext context)
{
SimScorer[] subScorers = new SimScorer[m_sims.Length];
for (int i = 0; i < subScorers.Length; i++)
{
subScorers[i] = m_sims[i].GetSimScorer(((MultiStats)stats).subStats[i], context);
}
return(new MultiSimScorer(subScorers));
}
/// <summary>
/// Optional method, to return a <see cref="BulkScorer"/> to
/// score the query and send hits to a <see cref="ICollector"/>.
/// Only queries that have a different top-level approach
/// need to override this; the default implementation
/// pulls a normal <see cref="Scorer"/> and iterates and
/// collects the resulting hits.
/// </summary>
/// <param name="context">
/// The <see cref="AtomicReaderContext"/> for which to return the <see cref="Scorer"/>. </param>
/// <param name="scoreDocsInOrder">
/// Specifies whether in-order scoring of documents is required. Note
/// that if set to <c>false</c> (i.e., out-of-order scoring is required),
/// this method can return whatever scoring mode it supports, as every
/// in-order scorer is also an out-of-order one. However, an
/// out-of-order scorer may not support <see cref="DocIdSetIterator.NextDoc()"/>
/// and/or <see cref="DocIdSetIterator.Advance(int)"/>, therefore it is recommended to
/// request an in-order scorer if use of these
/// methods is required. </param>
/// <param name="acceptDocs">
/// <see cref="IBits"/> that represent the allowable docs to match (typically deleted docs
/// but possibly filtering other documents)
/// </param>
/// <returns> A <see cref="BulkScorer"/> which scores documents and
/// passes them to a collector. </returns>
/// <exception cref="System.IO.IOException"> if there is a low-level I/O error </exception>
public virtual BulkScorer GetBulkScorer(AtomicReaderContext context, bool scoreDocsInOrder, IBits acceptDocs)
{
Scorer scorer = GetScorer(context, acceptDocs);
if (scorer == null)
{
// No docs match
return(null);
}
// this impl always scores docs in order, so we can
// ignore scoreDocsInOrder:
return(new DefaultBulkScorer(scorer));
}
public override DocIdSet GetDocIdSet(AtomicReaderContext context, IBits acceptDocs)
{
SortedDocValues fcsi = FieldCache.GetTermsIndex((context.AtomicReader), field);
FixedBitSet bits = new FixedBitSet(fcsi.ValueCount);
for (int i = 0; i < terms.Length; i++)
{
int ord = fcsi.LookupTerm(terms[i]);
if (ord >= 0)
{
bits.Set(ord);
}
}
return(new FieldCacheDocIdSetAnonymousInnerClassHelper(this, context.Reader.MaxDoc, acceptDocs, fcsi, bits));
}
public override Explanation Explain(AtomicReaderContext context, int doc)
{
PayloadTermSpanScorer scorer = (PayloadTermSpanScorer)GetScorer(context, (context.AtomicReader).LiveDocs);
if (scorer != null)
{
int newDoc = scorer.Advance(doc);
if (newDoc == doc)
{
float freq = scorer.SloppyFreq;
Similarity.SimScorer docScorer = m_similarity.GetSimScorer(m_stats, context);
Explanation expl = new Explanation();
expl.Description = "weight(" + Query + " in " + doc + ") [" + m_similarity.GetType().Name + "], result of:";
Explanation scoreExplanation = docScorer.Explain(doc, new Explanation(freq, "phraseFreq=" + freq));
expl.AddDetail(scoreExplanation);
expl.Value = scoreExplanation.Value;
// now the payloads part
// QUESTION: Is there a way to avoid this skipTo call? We need to know
// whether to load the payload or not
// GSI: I suppose we could toString the payload, but I don't think that
// would be a good idea
string field = ((SpanQuery)Query).Field;
Explanation payloadExpl = outerInstance.m_function.Explain(doc, field, scorer.m_payloadsSeen, scorer.m_payloadScore);
payloadExpl.Value = scorer.GetPayloadScore();
// combined
ComplexExplanation result = new ComplexExplanation();
if (outerInstance.includeSpanScore)
{
result.AddDetail(expl);
result.AddDetail(payloadExpl);
result.Value = expl.Value * payloadExpl.Value;
result.Description = "btq, product of:";
}
else
{
result.AddDetail(payloadExpl);
result.Value = payloadExpl.Value;
result.Description = "btq(includeSpanScore=false), result of:";
}
result.Match = true; // LUCENE-1303
return(result);
}
}
return(new ComplexExplanation(false, 0.0f, "no matching term"));
}
public override SimScorer GetSimScorer(SimWeight stats, AtomicReaderContext context)
{
if (stats is MultiSimilarity.MultiStats)
{
// a multi term query (e.g. phrase). return the summation,
// scoring almost as if it were boolean query
SimWeight[] subStats = ((MultiSimilarity.MultiStats)stats).subStats;
SimScorer[] subScorers = new SimScorer[subStats.Length];
for (int i = 0; i < subScorers.Length; i++)
{
BasicStats basicstats = (BasicStats)subStats[i];
subScorers[i] = new BasicSimScorer(this, basicstats, context.AtomicReader.GetNormValues(basicstats.Field));
}
return(new MultiSimilarity.MultiSimScorer(subScorers));
}
else
{
BasicStats basicstats = (BasicStats)stats;
return(new BasicSimScorer(this, basicstats, context.AtomicReader.GetNormValues(basicstats.Field)));
}
}
public virtual void SetNextReader(AtomicReaderContext context)
{
c.SetNextReader(context);
}
public override Scorer GetScorer(AtomicReaderContext context, IBits acceptDocs)
{
return(new PayloadTermSpanScorer(this, (TermSpans)m_query.GetSpans(context, acceptDocs, m_termContexts), this, m_similarity.GetSimScorer(m_stats, context)));
}
public override sealed SimScorer GetSimScorer(SimWeight weight, AtomicReaderContext context)
{
PerFieldSimWeight perFieldWeight = (PerFieldSimWeight)weight;
return [email protected](perFieldWeight.delegateWeight, context);
}
/// <summary> /// Creates a new <see cref="Similarity.SimScorer"/> to score matching documents from a segment of the inverted index. </summary> /// <param name="weight"> collection information from <see cref="ComputeWeight(float, CollectionStatistics, TermStatistics[])"/> </param> /// <param name="context"> segment of the inverted index to be scored. </param> /// <returns> Sloppy <see cref="SimScorer"/> for scoring documents across <c>context</c> </returns> /// <exception cref="System.IO.IOException"> if there is a low-level I/O error </exception> public abstract SimScorer GetSimScorer(SimWeight weight, AtomicReaderContext context);
/// <summary> /// An explanation of the score computation for the named document. /// </summary> /// <param name="context"> The readers context to create the <see cref="Explanation"/> for. </param> /// <param name="doc"> The document's id relative to the given context's reader </param> /// <returns> An <see cref="Explanation"/> for the score </returns> /// <exception cref="System.IO.IOException"> if an <see cref="System.IO.IOException"/> occurs </exception> public abstract Explanation Explain(AtomicReaderContext context, int doc);
/// <summary> /// Returns a <see cref="Scorer"/> which scores documents in/out-of order according /// to <c>scoreDocsInOrder</c>. /// <para/> /// <b>NOTE:</b> even if <c>scoreDocsInOrder</c> is <c>false</c>, it is /// recommended to check whether the returned <see cref="Scorer"/> indeed scores /// documents out of order (i.e., call <see cref="ScoresDocsOutOfOrder"/>), as /// some <see cref="Scorer"/> implementations will always return documents /// in-order. /// <para/> /// <b>NOTE:</b> <c>null</c> can be returned if no documents will be scored by this /// query. /// </summary> /// <param name="context"> /// The <see cref="AtomicReaderContext"/> for which to return the <see cref="Scorer"/>. </param> /// <param name="acceptDocs"> /// <see cref="IBits"/> that represent the allowable docs to match (typically deleted docs /// but possibly filtering other documents) /// </param> /// <returns> A <see cref="Scorer"/> which scores documents in/out-of order. </returns> /// <exception cref="System.IO.IOException"> if there is a low-level I/O error </exception> public abstract Scorer GetScorer(AtomicReaderContext context, IBits acceptDocs);
