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#ifndef IsolationAlgos_IsolationProducer_h
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#define IsolationAlgos_IsolationProducer_h
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/* \class IsolationProducer<C1, C2, Algo>
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*
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* \author Francesco Fabozzi, INFN
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*
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* template class to store isolation
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*
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*/
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#include "PhysicsTools/UtilAlgos/interface/ParameterAdapter.h"
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#include "FWCore/Framework/interface/EDProducer.h"
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#include "FWCore/ParameterSet/interface/ParameterSetfwd.h"
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#include "FWCore/ParameterSet/interface/InputTag.h"
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#include "DataFormats/Common/interface/AssociationVector.h"
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#include "FWCore/ParameterSet/interface/ParameterSet.h"
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#include "FWCore/Framework/interface/Event.h"
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#include "DataFormats/Common/interface/Handle.h"
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#include <vector>
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namespace helper {
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template<typename Alg>
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struct NullIsolationAlgorithmSetup {
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static void init( Alg &, const edm::EventSetup& ) { }
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};
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template<typename Alg>
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struct IsolationAlgorithmSetup {
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typedef NullIsolationAlgorithmSetup<Alg> type;
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};
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}
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template <typename C1, typename C2, typename Alg,
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typename Setup = typename helper::IsolationAlgorithmSetup<Alg>::type>
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class IsolationProducer : public edm::EDProducer {
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public:
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IsolationProducer( const edm::ParameterSet & );
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~IsolationProducer();
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private:
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void produce( edm::Event&, const edm::EventSetup& );
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edm::InputTag src_, elements_;
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Alg alg_;
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typedef typename Alg::value_type value_type;
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typedef edm::AssociationVector<edm::RefProd<C1>,
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std::vector<value_type> > IsolationCollection;
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};
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template <typename C1, typename C2, typename Alg, typename Setup>
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IsolationProducer<C1, C2, Alg, Setup>::IsolationProducer( const edm::ParameterSet & cfg ) :
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src_( cfg.template getParameter<edm::InputTag>( "src" ) ),
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elements_( cfg.template getParameter<edm::InputTag>( "elements" ) ),
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alg_( reco::modules::make<Alg>( cfg ) ) {
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//produces<IsolationCollection>();
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produces<std::vector<value_type> >(); //CMSSW_1_3_x
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}
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template <typename C1, typename C2, typename Alg, typename Setup>
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IsolationProducer<C1, C2, Alg, Setup>::~IsolationProducer() {
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}
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template <typename C1, typename C2, typename Alg, typename Setup>
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void IsolationProducer<C1, C2, Alg, Setup>::produce( edm::Event& evt, const edm::EventSetup& es ) {
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using namespace edm;
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using namespace std;
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Handle<C1> src;
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Handle<C2> elements;
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evt.getByLabel( src_, src );
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evt.getByLabel( elements_, elements );
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Setup::init( alg_, es );
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//auto_ptr<IsolationCollection> isolations( new IsolationCollection( edm::RefProd<C1>( src ) ) );
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auto_ptr<std::vector<value_type> > isolations( new std::vector<value_type>); //CMSSW_1_3_x
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//size_t i = 0;
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for( typename C1::const_iterator lep = src->begin(); lep != src->end(); ++ lep ) {
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value_type iso= alg_(*lep,*elements);
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//isolations->setValue( i++, iso );
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isolations->push_back( iso ); //CMSSW_1_3_x
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}
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evt.put( isolations );
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}
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#endif
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