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/* \class CandViewRefMerger
*
* Producer of merged references to Candidates
*
* \author: Luca Lista, INFN
*
*/
#include "FWCore/Framework/interface/MakerMacros.h"
#include "DataFormats/Candidate/interface/Candidate.h"
#include "FWCore/Framework/interface/global/EDProducer.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Utilities/interface/transform.h"
#include "DataFormats/Common/interface/Handle.h"
class CandViewRefMerger : public edm::global::EDProducer<> {
public:
explicit CandViewRefMerger(const edm::ParameterSet& cfg)
: srcTokens_(
edm::vector_transform(cfg.getParameter<std::vector<edm::InputTag> >("src"),
[this](edm::InputTag const& tag) { return consumes<reco::CandidateView>(tag); })) {
produces<std::vector<reco::CandidateBaseRef> >();
}
private:
void produce(edm::StreamID, edm::Event& evt, const edm::EventSetup&) const override {
std::unique_ptr<std::vector<reco::CandidateBaseRef> > out(new std::vector<reco::CandidateBaseRef>);
for (std::vector<edm::EDGetTokenT<reco::CandidateView> >::const_iterator i = srcTokens_.begin();
i != srcTokens_.end();
++i) {
edm::Handle<reco::CandidateView> src;
evt.getByToken(*i, src);
for (size_t j = 0; j < src->size(); ++j)
out->push_back(src->refAt(j));
}
evt.put(std::move(out));
}
std::vector<edm::EDGetTokenT<reco::CandidateView> > srcTokens_;
};
DEFINE_FWK_MODULE(CandViewRefMerger);
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