public override Explanation Explain(IndexReader reader, int doc)
{
ComplexExplanation result = new ComplexExplanation();
result.Description = "weight(" + Query + " in " + doc + "), product of:";
Explanation expl = new Explanation(idf, idfExp.Explain());
// explain query weight
Explanation queryExpl = new Explanation();
queryExpl.Description = "queryWeight(" + Query + "), product of:";
Explanation boostExpl = new Explanation(Enclosing_Instance.Boost, "boost");
if (Enclosing_Instance.Boost != 1.0f)
{
queryExpl.AddDetail(boostExpl);
}
queryExpl.AddDetail(expl);
Explanation queryNormExpl = new Explanation(queryNorm, "queryNorm");
queryExpl.AddDetail(queryNormExpl);
queryExpl.Value = boostExpl.Value * expl.Value * queryNormExpl.Value;
result.AddDetail(queryExpl);
// explain field weight
string field = Enclosing_Instance.term.Field;
ComplexExplanation fieldExpl = new ComplexExplanation();
fieldExpl.Description = "fieldWeight(" + Enclosing_Instance.term + " in " + doc + "), product of:";
Explanation tfExplanation = new Explanation();
int tf = 0;
TermDocs termDocs = reader.TermDocs(enclosingInstance.term);
if (termDocs != null)
{
try
{
if (termDocs.SkipTo(doc) && termDocs.Doc == doc)
{
tf = termDocs.Freq;
}
}
finally
{
termDocs.Close();
}
tfExplanation.Value = similarity.Tf(tf);
tfExplanation.Description = "tf(termFreq(" + enclosingInstance.term + ")=" + tf + ")";
}
else
{
tfExplanation.Value = 0.0f;
tfExplanation.Description = "no matching term";
}
fieldExpl.AddDetail(tfExplanation);
fieldExpl.AddDetail(expl);
Explanation fieldNormExpl = new Explanation();
byte[] fieldNorms = reader.Norms(field);
float fieldNorm = fieldNorms != null?Similarity.DecodeNorm(fieldNorms[doc]) : 1.0f;
fieldNormExpl.Value = fieldNorm;
fieldNormExpl.Description = "fieldNorm(field=" + field + ", doc=" + doc + ")";
fieldExpl.AddDetail(fieldNormExpl);
fieldExpl.Match = tfExplanation.IsMatch;
fieldExpl.Value = tfExplanation.Value * expl.Value * fieldNormExpl.Value;
result.AddDetail(fieldExpl);
bool?tempAux = fieldExpl.Match;
result.Match = tempAux;
// combine them
result.Value = queryExpl.Value * fieldExpl.Value;
if (queryExpl.Value == 1.0f)
{
return(fieldExpl);
}
return(result);
}
public override Explanation Explain(IndexReader reader, int doc)
{
ComplexExplanation result = new ComplexExplanation();
result.SetDescription("weight(" + GetQuery() + " in " + doc + "), product of:");
Explanation expl = new Explanation(idf, idfExp.Explain());
// explain query weight
Explanation queryExpl = new Explanation();
queryExpl.SetDescription("queryWeight(" + GetQuery() + "), product of:");
Explanation boostExpl = new Explanation(Enclosing_Instance.GetBoost(), "boost");
if (Enclosing_Instance.GetBoost() != 1.0f)
{
queryExpl.AddDetail(boostExpl);
}
queryExpl.AddDetail(expl);
Explanation queryNormExpl = new Explanation(queryNorm, "queryNorm");
queryExpl.AddDetail(queryNormExpl);
queryExpl.SetValue(boostExpl.GetValue() * expl.GetValue() * queryNormExpl.GetValue());
result.AddDetail(queryExpl);
// explain field weight
System.String field = Enclosing_Instance.term.Field();
ComplexExplanation fieldExpl = new ComplexExplanation();
fieldExpl.SetDescription("fieldWeight(" + Enclosing_Instance.term + " in " + doc + "), product of:");
Explanation tfExpl = Scorer(reader, true, false).Explain(doc);
fieldExpl.AddDetail(tfExpl);
fieldExpl.AddDetail(expl);
Explanation fieldNormExpl = new Explanation();
byte[] fieldNorms = reader.Norms(field);
float fieldNorm = fieldNorms != null?Similarity.DecodeNorm(fieldNorms[doc]) : 1.0f;
fieldNormExpl.SetValue(fieldNorm);
fieldNormExpl.SetDescription("fieldNorm(field=" + field + ", doc=" + doc + ")");
fieldExpl.AddDetail(fieldNormExpl);
fieldExpl.SetMatch(tfExpl.IsMatch());
fieldExpl.SetValue(tfExpl.GetValue() * expl.GetValue() * fieldNormExpl.GetValue());
result.AddDetail(fieldExpl);
System.Boolean?tempAux = fieldExpl.GetMatch();
result.SetMatch(tempAux);
// combine them
result.SetValue(queryExpl.GetValue() * fieldExpl.GetValue());
if (queryExpl.GetValue() == 1.0f)
{
return(fieldExpl);
}
return(result);
}
public override Explanation Explain(IndexReader reader, int doc)
{
Explanation result = new Explanation();
result.SetDescription("weight(" + GetQuery() + " in " + doc + "), product of:");
System.Text.StringBuilder docFreqs = new System.Text.StringBuilder();
System.Text.StringBuilder query = new System.Text.StringBuilder();
query.Append('\"');
docFreqs.Append(idfExp.Explain());
for (int i = 0; i < Enclosing_Instance.terms.Count; i++)
{
if (i != 0)
{
query.Append(" ");
}
Term term = (Term)Enclosing_Instance.terms[i];
query.Append(term.Text());
}
query.Append('\"');
Explanation idfExpl = new Explanation(idf, "idf(" + Enclosing_Instance.field + ":" + docFreqs + ")");
// explain query weight
Explanation queryExpl = new Explanation();
queryExpl.SetDescription("queryWeight(" + GetQuery() + "), product of:");
Explanation boostExpl = new Explanation(Enclosing_Instance.GetBoost(), "boost");
if (Enclosing_Instance.GetBoost() != 1.0f)
{
queryExpl.AddDetail(boostExpl);
}
queryExpl.AddDetail(idfExpl);
Explanation queryNormExpl = new Explanation(queryNorm, "queryNorm");
queryExpl.AddDetail(queryNormExpl);
queryExpl.SetValue(boostExpl.GetValue() * idfExpl.GetValue() * queryNormExpl.GetValue());
result.AddDetail(queryExpl);
// explain field weight
Explanation fieldExpl = new Explanation();
fieldExpl.SetDescription("fieldWeight(" + Enclosing_Instance.field + ":" + query + " in " + doc + "), product of:");
Scorer scorer = Scorer(reader, true, false);
if (scorer == null)
{
return(new Explanation(0.0f, "no matching docs"));
}
Explanation tfExpl = scorer.Explain(doc);
fieldExpl.AddDetail(tfExpl);
fieldExpl.AddDetail(idfExpl);
Explanation fieldNormExpl = new Explanation();
byte[] fieldNorms = reader.Norms(Enclosing_Instance.field);
float fieldNorm = fieldNorms != null?Similarity.DecodeNorm(fieldNorms[doc]) : 1.0f;
fieldNormExpl.SetValue(fieldNorm);
fieldNormExpl.SetDescription("fieldNorm(field=" + Enclosing_Instance.field + ", doc=" + doc + ")");
fieldExpl.AddDetail(fieldNormExpl);
fieldExpl.SetValue(tfExpl.GetValue() * idfExpl.GetValue() * fieldNormExpl.GetValue());
result.AddDetail(fieldExpl);
// combine them
result.SetValue(queryExpl.GetValue() * fieldExpl.GetValue());
if (queryExpl.GetValue() == 1.0f)
{
return(fieldExpl);
}
return(result);
}
public override Explanation Explain(IndexReader reader, int doc)
{
ComplexExplanation result = new ComplexExplanation();
result.Description = "weight(" + Query + " in " + doc + "), product of:";
string field = ((SpanQuery)Query).Field;
Explanation idfExpl = new Explanation(idf, "idf(" + field + ": " + idfExp.Explain() + ")");
// explain query weight
Explanation queryExpl = new Explanation();
queryExpl.Description = "queryWeight(" + Query + "), product of:";
Explanation boostExpl = new Explanation(Query.Boost, "boost");
if (Query.Boost != 1.0f)
{
queryExpl.AddDetail(boostExpl);
}
queryExpl.AddDetail(idfExpl);
Explanation queryNormExpl = new Explanation(queryNorm, "queryNorm");
queryExpl.AddDetail(queryNormExpl);
queryExpl.Value = boostExpl.Value * idfExpl.Value * queryNormExpl.Value;
result.AddDetail(queryExpl);
// explain field weight
ComplexExplanation fieldExpl = new ComplexExplanation();
fieldExpl.Description = "fieldWeight(" + field + ":" + internalQuery.ToString(field) + " in " + doc + "), product of:";
Explanation tfExpl = ((SpanScorer)Scorer(reader, true, false)).Explain(doc);
fieldExpl.AddDetail(tfExpl);
fieldExpl.AddDetail(idfExpl);
Explanation fieldNormExpl = new Explanation();
byte[] fieldNorms = reader.Norms(field);
float fieldNorm = fieldNorms != null?Similarity.DecodeNorm(fieldNorms[doc]) : 1.0f;
fieldNormExpl.Value = fieldNorm;
fieldNormExpl.Description = "fieldNorm(field=" + field + ", doc=" + doc + ")";
fieldExpl.AddDetail(fieldNormExpl);
fieldExpl.Match = tfExpl.IsMatch;
fieldExpl.Value = tfExpl.Value * idfExpl.Value * fieldNormExpl.Value;
result.AddDetail(fieldExpl);
bool?tempAux = fieldExpl.Match;
result.Match = tempAux;
// combine them
result.Value = queryExpl.Value * fieldExpl.Value;
if (queryExpl.Value == 1.0f)
{
return(fieldExpl);
}
return(result);
}
public override Explanation Explain(IndexReader reader, int doc, IState state)
{
Explanation result = new Explanation();
result.Description = "weight(" + Query + " in " + doc + "), product of:";
System.Text.StringBuilder docFreqs = new System.Text.StringBuilder();
System.Text.StringBuilder query = new System.Text.StringBuilder();
query.Append('\"');
docFreqs.Append(idfExp.Explain());
for (int i = 0; i < Enclosing_Instance.terms.Count; i++)
{
if (i != 0)
{
query.Append(" ");
}
Term term = Enclosing_Instance.terms[i];
query.Append(term.Text);
}
query.Append('\"');
Explanation idfExpl = new Explanation(idf, "idf(" + Enclosing_Instance.field + ":" + docFreqs + ")");
// explain query weight
Explanation queryExpl = new Explanation();
queryExpl.Description = "queryWeight(" + Query + "), product of:";
Explanation boostExpl = new Explanation(Enclosing_Instance.Boost, "boost");
if (Enclosing_Instance.Boost != 1.0f)
{
queryExpl.AddDetail(boostExpl);
}
queryExpl.AddDetail(idfExpl);
Explanation queryNormExpl = new Explanation(queryNorm, "queryNorm");
queryExpl.AddDetail(queryNormExpl);
queryExpl.Value = boostExpl.Value * idfExpl.Value * queryNormExpl.Value;
result.AddDetail(queryExpl);
// explain field weight
Explanation fieldExpl = new Explanation();
fieldExpl.Description = "fieldWeight(" + Enclosing_Instance.field + ":" + query + " in " + doc + "), product of:";
PhraseScorer scorer = (PhraseScorer)Scorer(reader, true, false, state);
if (scorer == null)
{
return(new Explanation(0.0f, "no matching docs"));
}
Explanation tfExplanation = new Explanation();
int d = scorer.Advance(doc, state);
float phraseFreq = (d == doc) ? scorer.CurrentFreq() : 0.0f;
tfExplanation.Value = similarity.Tf(phraseFreq);
tfExplanation.Description = "tf(phraseFreq=" + phraseFreq + ")";
fieldExpl.AddDetail(tfExplanation);
fieldExpl.AddDetail(idfExpl);
Explanation fieldNormExpl = new Explanation();
byte[] fieldNorms = reader.Norms(Enclosing_Instance.field, state);
float fieldNorm = fieldNorms != null?Similarity.DecodeNorm(fieldNorms[doc]) : 1.0f;
fieldNormExpl.Value = fieldNorm;
fieldNormExpl.Description = "fieldNorm(field=" + Enclosing_Instance.field + ", doc=" + doc + ")";
fieldExpl.AddDetail(fieldNormExpl);
fieldExpl.Value = tfExplanation.Value * idfExpl.Value * fieldNormExpl.Value;
result.AddDetail(fieldExpl);
// combine them
result.Value = queryExpl.Value * fieldExpl.Value;
if (queryExpl.Value == 1.0f)
{
return(fieldExpl);
}
return(result);
}