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#ifndef PhysicsTools_UtilAlgos_CollectionAdder_h
#define PhysicsTools_UtilAlgos_CollectionAdder_h
/* \class CollectionAdder<C>
*
* \author Luca Lista, INFN
*
* \version $Id: CollectionAdder.h,v 1.3 2010/02/20 20:55:17 wmtan Exp $
*/
#include "FWCore/Framework/interface/global/EDProducer.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/transform.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "FWCore/Framework/interface/Event.h"
#include "DataFormats/Common/interface/Handle.h"
template <typename C>
class CollectionAdder : public edm::global::EDProducer<> {
public:
typedef C collection;
CollectionAdder(const edm::ParameterSet& cfg)
: srcTokens_(edm::vector_transform(cfg.template getParameter<std::vector<edm::InputTag>>("src"),
[this](edm::InputTag const& tag) { return consumes<collection>(tag); })) {
produces<collection>();
}
private:
std::vector<edm::EDGetTokenT<collection>> srcTokens_;
void produce(edm::StreamID, edm::Event& evt, const edm::EventSetup&) const override {
std::unique_ptr<collection> coll(new collection);
typename collection::Filler filler(*coll);
for (size_t i = 0; i < srcTokens_.size(); ++i) {
edm::Handle<collection> src;
evt.getByToken(srcTokens_[i], src);
*coll += *src;
}
evt.put(std::move(coll));
}
};
#endif
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