double Soprano::Index::CLuceneIndex::getScore( const Soprano::Node& resource, lucene::search::Query* query )
{
QMutexLocker lock( &d->mutex );
clearError();
try {
// rewrite the query
lucene::index::Term queryTerm( idFieldName().data(), TString( d->getId( resource ) ).data() );
lucene::search::TermQuery idQuery( &queryTerm );
lucene::search::BooleanQuery combinedQuery;
combinedQuery.add( &idQuery, true, false );
combinedQuery.add( query, true, false );
// fetch the score when the URI matches the original query
lucene::search::TopDocs* docs = static_cast<lucene::search::Searchable*>( d->getIndexSearcher() )->_search( &combinedQuery, 0, 1 );
double r = -1.0;
if ( docs->totalHits > 0 ) {
#ifdef CL_VERSION_19_OR_GREATER
r = docs->scoreDocs[0].score;
#else
r = docs->scoreDocs[0]->score;
#endif
}
_CLDELETE( docs );
return r;
}
catch( CLuceneError& err ) {
qDebug() << "search failed: " << err.what();
setError( exceptionToError( err ) );
return 0.0;
}
}
double QueryTermScorer::getTokenScore() {
String termText(termAtt->term());
WeightedTermPtr queryTerm(termsToFind.get(termText));
if (!queryTerm) {
return 0.0; // not a query term - return
}
// found a query term - is it unique in this doc?
if (!uniqueTermsInFragment.contains(termText)) {
totalScore += queryTerm->getWeight();;
uniqueTermsInFragment.add(termText);
}
return queryTerm->getWeight();
}