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#ifndef FWCore_Framework_es_impl_MayConsumeChooser_h
#define FWCore_Framework_es_impl_MayConsumeChooser_h
// -*- C++ -*-
//
// Package: FWCore/Framework
// Class : MayConsumeChooser
//
/**\class MayConsumeChooser MayConsumeChooser.h "MayConsumeChooser.h"
Description: Handles calling the user's function to choose which product to get
Usage:
This is used by the mayConsumes ability of an ESProducer.
*/
//
// Original Author: Chris Jones
// Created: Thu, 19 Sep 2019 15:29:50 GMT
//
// system include files
#include <type_traits>
// user include files
#include "FWCore/Framework/interface/es_impl/MayConsumeChooserBase.h"
#include "FWCore/Framework/interface/DataKey.h"
#include "FWCore/Framework/interface/EventSetupRecordKey.h"
#include "FWCore/Utilities/interface/ESGetToken.h"
// forward declarations
namespace edm::eventsetup::impl {
template <typename RECBASE, typename PRODUCT, typename RCD, typename FUNC, typename PTAG>
class MayConsumeChooser : public MayConsumeChooserBase<RECBASE> {
public:
using Record_t = typename PTAG::Record;
using GetType_t = typename PTAG::Type;
MayConsumeChooser(FUNC&& iFunc) : func_(std::forward<FUNC>(iFunc)) {}
// ---------- const member functions ---------------------
ESResolverIndex makeChoice(RECBASE const& iRecord) const final {
return func_(this->tagGetter(), iRecord.getTransientHandle(token_));
}
EventSetupRecordKey recordKey() const noexcept final { return EventSetupRecordKey::makeKey<RCD>(); }
TypeTag productType() const noexcept final { return DataKey::makeTypeTag<PRODUCT>(); }
// ---------- static member functions --------------------
// ---------- member functions ---------------------------
edm::ESGetToken<GetType_t, Record_t>& token() { return token_; }
private:
// ---------- member data --------------------------------
edm::ESGetToken<GetType_t, Record_t> token_;
FUNC func_;
};
} // namespace edm::eventsetup::impl
#endif
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