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#ifndef CommonTools_UtilAlgos_FwdPtrProducer_h
#define CommonTools_UtilAlgos_FwdPtrProducer_h
/**
\class edm::FwdPtrProducer FwdPtrProducer.h "CommonTools/UtilAlgos/interface/FwdPtrProducer.h"
\brief Produces a list of FwdPtr's to an input collection.
\author Salvatore Rappoccio
*/
#include "FWCore/Framework/interface/stream/EDProducer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "DataFormats/Common/interface/View.h"
#include "DataFormats/Common/interface/FwdPtr.h"
#include "CommonTools/UtilAlgos/interface/FwdPtrConversionFactory.h"
#include <vector>
namespace edm {
template <class T, class H = FwdPtrFromProductFactory<T> >
class FwdPtrProducer : public edm::stream::EDProducer<> {
public:
explicit FwdPtrProducer(edm::ParameterSet const& params)
: srcToken_(consumes<edm::View<T> >(params.getParameter<edm::InputTag>("src"))) {
produces<std::vector<edm::FwdPtr<T> > >();
}
~FwdPtrProducer() override {}
void produce(edm::Event& iEvent, const edm::EventSetup& iSetup) override {
edm::Handle<edm::View<T> > hSrc;
iEvent.getByToken(srcToken_, hSrc);
std::unique_ptr<std::vector<edm::FwdPtr<T> > > pOutputFwdPtr(new std::vector<edm::FwdPtr<T> >);
for (typename edm::View<T>::const_iterator ibegin = hSrc->begin(), iend = hSrc->end(), i = ibegin; i != iend;
++i) {
H factory;
FwdPtr<T> ptr = factory(*hSrc, i - ibegin);
pOutputFwdPtr->push_back(ptr);
}
iEvent.put(std::move(pOutputFwdPtr));
}
protected:
edm::EDGetTokenT<edm::View<T> > srcToken_;
};
} // namespace edm
#endif
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