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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/searchlib/common/matching_elements.h>
#include <vespa/searchlib/common/matching_elements_fields.h>
#include <vespa/vespalib/util/featureset.h>
#include <vector>
#include <memory>
namespace proton::matching {
class MatchToolsFactory;
class SearchSession;
/**
* Used to perform additional matching related to a docsum
* request. Note that external objects must be kept alive by the one
* using this class.
**/
class DocsumMatcher
{
private:
using FeatureSet = vespalib::FeatureSet;
using MatchingElementsFields = search::MatchingElementsFields;
using MatchingElements = search::MatchingElements;
std::shared_ptr<SearchSession> _from_session;
std::unique_ptr<MatchToolsFactory> _from_mtf;
MatchToolsFactory *_mtf;
std::vector<uint32_t> _docs;
public:
DocsumMatcher();
DocsumMatcher(std::shared_ptr<SearchSession> session, std::vector<uint32_t> docs);
DocsumMatcher(std::unique_ptr<MatchToolsFactory> mtf, std::vector<uint32_t> docs);
~DocsumMatcher();
using UP = std::unique_ptr<DocsumMatcher>;
FeatureSet::UP get_summary_features() const;
FeatureSet::UP get_rank_features() const;
MatchingElements::UP get_matching_elements(const MatchingElementsFields &fields) const;
};
}
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