private Explanation DoExplain(IndexReader reader, int doc)
{
Scorer[] valSrcScorers = new Scorer[valSrcWeights.Length];
for (int i = 0; i < valSrcScorers.Length; i++)
{
valSrcScorers[i] = valSrcWeights[i].Scorer(reader, true, false);
}
Explanation subQueryExpl = subQueryWeight.Explain(reader, doc);
if (!subQueryExpl.IsMatch())
{
return(subQueryExpl);
}
// match
Explanation[] valSrcExpls = new Explanation[valSrcScorers.Length];
for (int i = 0; i < valSrcScorers.Length; i++)
{
valSrcExpls[i] = valSrcScorers[i].Explain(doc);
}
Explanation customExp = Enclosing_Instance.GetCustomScoreProvider(reader).CustomExplain(doc, subQueryExpl, valSrcExpls);
float sc = GetValue() * customExp.GetValue();
Explanation res = new ComplexExplanation(true, sc, Enclosing_Instance.ToString() + ", product of:");
res.AddDetail(customExp);
res.AddDetail(new Explanation(GetValue(), "queryBoost")); // actually using the q boost as q weight (== weight value)
return(res);
}
public virtual Explanation CustomExplain(int doc, Explanation subQueryExpl, Explanation[] valSrcExpls)
{
if (valSrcExpls.Length == 1)
{
return(CustomExplain(doc, subQueryExpl, valSrcExpls[0]));
}
if (valSrcExpls.Length == 0)
{
return(subQueryExpl);
}
float valSrcScore = 1;
for (int i = 0; i < valSrcExpls.Length; i++)
{
valSrcScore *= valSrcExpls[i].GetValue();
}
Explanation exp = new Explanation(valSrcScore * subQueryExpl.GetValue(), "custom score: product of:");
exp.AddDetail(subQueryExpl);
for (int i = 0; i < valSrcExpls.Length; i++)
{
exp.AddDetail(valSrcExpls[i]);
}
return(exp);
}
public override Explanation Explain(int doc)
{
ComplexExplanation result = new ComplexExplanation();
Explanation nonPayloadExpl = base.Explain(doc);
result.AddDetail(nonPayloadExpl);
// QUESTION: Is there a way to avoid this skipTo call? We need to know
// whether to load the payload or not
Explanation payloadBoost = new Explanation();
result.AddDetail(payloadBoost);
float payloadScore = GetPayloadScore();
payloadBoost.SetValue(payloadScore);
// GSI: I suppose we could toString the payload, but I don't think that
// would be a good idea
payloadBoost.SetDescription("scorePayload(...)");
result.SetValue(nonPayloadExpl.GetValue() * payloadScore);
result.SetDescription("btq, product of:");
result.SetMatch(nonPayloadExpl.GetValue() == 0?false:true); // LUCENE-1303
return(result);
}
public virtual Explanation CustomExplain(int doc, Explanation subQueryExpl, Explanation valSrcExpl)
{
float valSrcScore = 1;
if (valSrcExpl != null)
{
valSrcScore *= valSrcExpl.GetValue();
}
Explanation exp = new Explanation(valSrcScore * subQueryExpl.GetValue(), "custom score: product of:");
exp.AddDetail(subQueryExpl);
exp.AddDetail(valSrcExpl);
return(exp);
}
public override Explanation Explain(int doc)
{
Explanation result = new Explanation();
Explanation nonPayloadExpl = base.Explain(doc);
result.AddDetail(nonPayloadExpl);
Explanation payloadBoost = new Explanation();
result.AddDetail(payloadBoost);
float avgPayloadScore = (payloadsSeen > 0?(payloadScore / payloadsSeen):1);
payloadBoost.SetValue(avgPayloadScore);
payloadBoost.SetDescription("scorePayload(...)");
result.SetValue(nonPayloadExpl.GetValue() * avgPayloadScore);
result.SetDescription("bnq, product of:");
return(result);
}
// TODO: remove in 3.0
/*(non-Javadoc) @see Mono.Lucene.Net.Search.Scorer#explain(int) */
public override Explanation Explain(int doc)
{
Explanation subQueryExpl = weight.subQueryWeight.Explain(reader, doc);
if (!subQueryExpl.IsMatch())
{
return(subQueryExpl);
}
// match
Explanation[] valSrcExpls = new Explanation[valSrcScorers.Length];
for (int i = 0; i < valSrcScorers.Length; i++)
{
valSrcExpls[i] = valSrcScorers[i].Explain(doc);
}
Explanation customExp = Enclosing_Instance.CustomExplain(doc, subQueryExpl, valSrcExpls);
float sc = qWeight * customExp.GetValue();
Explanation res = new ComplexExplanation(true, sc, Enclosing_Instance.ToString() + ", product of:");
res.AddDetail(customExp);
res.AddDetail(new Explanation(qWeight, "queryBoost")); // actually using the q boost as q weight (== weight value)
return(res);
}
public virtual Explanation CustomExplain(int doc, Explanation subQueryExpl, Explanation valSrcExpl)
{
float valSrcScore = 1;
if (valSrcExpl != null)
{
valSrcScore *= valSrcExpl.GetValue();
}
Explanation exp = new Explanation(valSrcScore * subQueryExpl.GetValue(), "custom score: product of:");
exp.AddDetail(subQueryExpl);
exp.AddDetail(valSrcExpl);
return exp;
}
public virtual Explanation CustomExplain(int doc, Explanation subQueryExpl, Explanation[] valSrcExpls)
{
if (valSrcExpls.Length == 1)
{
return CustomExplain(doc, subQueryExpl, valSrcExpls[0]);
}
if (valSrcExpls.Length == 0)
{
return subQueryExpl;
}
float valSrcScore = 1;
for (int i = 0; i < valSrcExpls.Length; i++)
{
valSrcScore *= valSrcExpls[i].GetValue();
}
Explanation exp = new Explanation(valSrcScore * subQueryExpl.GetValue(), "custom score: product of:");
exp.AddDetail(subQueryExpl);
for (int i = 0; i < valSrcExpls.Length; i++)
{
exp.AddDetail(valSrcExpls[i]);
}
return exp;
}