/usr/include/CLucene/highlighter/QueryScorer.h is in libclucene-dev 2.3.3.4-4build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright 2002-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _lucene_search_highlight_queryscorer_
#define _lucene_search_highlight_queryscorer_
CL_CLASS_DEF(index, IndexReader)
CL_CLASS_DEF(search, Query)
//#include "CLucene/search/SearchHeader.h"
//#include "TextFragment.h"
#include "HighlightScorer.h"
CL_NS_DEF2(search,highlight)
class WeightedTerm;
class QueryTermExtractor;
class TextFragment;
/**
* {@link Scorer} implementation which scores text fragments by the number of unique query terms found.
* This class uses the {@link QueryTermExtractor} class to process determine the query terms and
* their boosts to be used.
*/
//TODO: provide option to boost score of fragments near beginning of document
// based on fragment.getFragNum()
class CLUCENE_CONTRIBS_EXPORT QueryScorer : public HighlightScorer
{
private:
TextFragment * _currentTextFragment;
CL_NS(util)::CLHashSet<TCHAR*,
CL_NS(util)::Compare::TChar,
CL_NS(util)::Deletor::tcArray> _uniqueTermsInFragment;
float_t _totalScore;
float_t _maxTermWeight;
CL_NS(util)::CLHashMap<const TCHAR*, const WeightedTerm *,
CL_NS(util)::Compare::TChar,
CL_NS(util)::Equals::TChar,
CL_NS(util)::Deletor::Dummy,
CL_NS(util)::Deletor::Object<const WeightedTerm> > _termsToFind;
public:
/**
*
* @param query a Lucene query (ideally rewritten using query.rewrite
* before being passed to this class and the searcher)
*/
QueryScorer(const Query * query);
/**
*
* @param query a Lucene query (ideally rewritten using query.rewrite
* before being passed to this class and the searcher)
* @param reader used to compute IDF which can be used to a) score selected fragments better
* b) use graded highlights eg set font color intensity
* @param fieldName the field on which Inverse Document Frequency (IDF) calculations are based
*/
QueryScorer(const Query* query, CL_NS(index)::IndexReader* reader, const TCHAR* fieldName);
QueryScorer(WeightedTerm** weightedTerms);
~QueryScorer();
/* (non-Javadoc)
* @see org.apache.lucene.search.highlight.FragmentScorer#startFragment(org.apache.lucene.search.highlight.TextFragment)
*/
void startFragment(TextFragment* newFragment);
/* (non-Javadoc)
* @see org.apache.lucene.search.highlight.FragmentScorer#scoreToken(org.apache.lucene.analysis.Token)
*/
float_t getTokenScore(CL_NS(analysis)::Token * token);
/* (non-Javadoc)
* @see org.apache.lucene.search.highlight.FragmentScorer#endFragment(org.apache.lucene.search.highlight.TextFragment)
*/
float_t getFragmentScore();
/* (non-Javadoc)
* @see org.apache.lucene.search.highlight.FragmentScorer#allFragmentsProcessed()
*/
void allFragmentsProcessed();
/**
*
* @return The highest weighted term (useful for passing to GradientFormatter to set
* top end of coloring scale.
*/
float_t getMaxTermWeight();
private:
void initialize(WeightedTerm** weightedTerms);
};
CL_NS_END2
#endif
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