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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/searchlib/common/stringmap.h>
#include <vespa/vespalib/util/featureset.h>
#include <vector>
namespace vespalib { class Doom; };
namespace vespalib { struct ThreadBundle; };
namespace search::queryeval { class SearchIterator; }
namespace search::fef { class RankProgram; }
namespace proton::matching {
class MatchToolsFactory;
struct ExtractFeatures {
using FeatureSet = vespalib::FeatureSet;
using FeatureValues = vespalib::FeatureValues;
using ThreadBundle = vespalib::ThreadBundle;
using SearchIterator = search::queryeval::SearchIterator;
using RankProgram = search::fef::RankProgram;
using StringStringMap = search::StringStringMap;
/**
* Extract all seed features from a rank program for a list of
* documents (must be in ascending order) using unpack information
* from a search.
**/
static FeatureSet::UP get_feature_set(SearchIterator &search, RankProgram &rank_program, const std::vector<uint32_t> &docs, const vespalib::Doom &doom, const StringStringMap &renames);
// first: docid, second: result index (must be sorted on docid)
using OrderedDocs = std::vector<std::pair<uint32_t,uint32_t>>;
/**
* Extract match features using multiple threads.
**/
static FeatureValues get_match_features(const MatchToolsFactory &mtf, const OrderedDocs &docs, ThreadBundle &thread_bundle);
};
}
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