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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 "attribute_writer.h"
#include <vespa/searchcore/proton/reprocessing/i_reprocessing_reader.h>
namespace proton {
/**
* Class used to populate attribute vectors based on visiting the content of a document store.
*/
class AttributePopulator : public IReprocessingReader
{
private:
AttributeWriter _writer;
search::SerialNum _initSerialNum;
search::SerialNum _currSerialNum;
search::SerialNum _configSerialNum;
vespalib::string _subDbName;
search::SerialNum nextSerialNum();
std::vector<vespalib::string> getNames() const;
public:
using SP = std::shared_ptr<AttributePopulator>;
AttributePopulator(const proton::IAttributeManager::SP &mgr,
search::SerialNum initSerialNum,
const vespalib::string &subDbName,
search::SerialNum configSerialNum);
~AttributePopulator() override;
const IAttributeWriter &getWriter() const { return _writer; }
void handleExisting(uint32_t lid, const std::shared_ptr<document::Document> &doc) override;
void done() override;
};
} // namespace proton
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