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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/fef/blueprint.h>
namespace search::features {
/**
* Implements the necessary config for query completeness.
*/
struct QueryCompletenessConfig {
QueryCompletenessConfig();
uint32_t fieldId; // The id of field to process.
uint32_t fieldBegin; // The first field token to evaluate.
uint32_t fieldEnd; // The last field token to evaluate.
};
/**
* Implements the executor for query completeness.
*/
class QueryCompletenessExecutor : public fef::FeatureExecutor {
public:
/**
* Constructs an executor for query completenes.
*
* @param env The query environment.
* @param config The completeness config.
*/
QueryCompletenessExecutor(const fef::IQueryEnvironment &env,
const QueryCompletenessConfig &config);
void execute(uint32_t docId) override;
private:
const QueryCompletenessConfig &_config;
std::vector<fef::TermFieldHandle> _fieldHandles;
const fef::MatchData *_md;
void handle_bind_match_data(const fef::MatchData &md) override;
};
/**
* Implements the blueprint for query completeness.
*/
class QueryCompletenessBlueprint : public fef::Blueprint {
public:
QueryCompletenessBlueprint();
void visitDumpFeatures(const fef::IIndexEnvironment &env, fef::IDumpFeatureVisitor &visitor) const override;
fef::Blueprint::UP createInstance() const override;
fef::ParameterDescriptions getDescriptions() const override {
return fef::ParameterDescriptions().
desc().indexField(fef::ParameterCollection::ANY).
desc().indexField(fef::ParameterCollection::ANY).number().
desc().indexField(fef::ParameterCollection::ANY).number().number();
}
bool setup(const fef::IIndexEnvironment & env, const fef::ParameterList & params) override;
fef::FeatureExecutor &createExecutor(const fef::IQueryEnvironment &env, vespalib::Stash &stash) const override;
private:
QueryCompletenessConfig _config;
};
}
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