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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/searchcommon/attribute/i_attribute_functor.h>
#include <memory>
namespace proton {
class AttributeUsageSamplerContext;
/**
* Functor for sampling attribute usage and passing it on to sampler context.
*/
class AttributeUsageSamplerFunctor : public search::attribute::IConstAttributeFunctor
{
std::shared_ptr<AttributeUsageSamplerContext> _samplerContext;
std::string _subDbName;
public:
AttributeUsageSamplerFunctor(std::shared_ptr<AttributeUsageSamplerContext> samplerContext,
const std::string &subDbname);
~AttributeUsageSamplerFunctor() override;
void operator()(const search::attribute::IAttributeVector &attributeVector) override;
};
} // namespace proton
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