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PtMinPFCandidateSelectorDefinition.h

Go to the documentation of this file.

#ifndef PhysicsTools_PFCandProducer_PtMinPFCandidateSelectorDefinition
#define PhysicsTools_PFCandProducer_PtMinPFCandidateSelectorDefinition

#include "DataFormats/ParticleFlowCandidate/interface/PFCandidateFwd.h"
#include "DataFormats/ParticleFlowCandidate/interface/PFCandidate.h"

struct PtMinPFCandidateSelectorDefinition {

  typedef reco::PFCandidateCollection collection;
  typedef edm::Handle< collection > HandleToCollection;
  typedef std::vector< reco::PFCandidate *> container;
  typedef container::const_iterator const_iterator;

  PtMinPFCandidateSelectorDefinition ( const edm::ParameterSet & cfg ) :
  ptMin_( cfg.getParameter< double >( "ptMin" ) ) { }

  const_iterator begin() const { return selected_.begin(); }

  const_iterator end() const { return selected_.end(); }

  void select( const HandleToCollection & hc, 
               const edm::Event & e,
               const edm::EventSetup& s) {
    selected_.clear();
    
    assert( hc.isValid() );
    
    
    unsigned key=0;
    for( collection::const_iterator pfc = hc->begin(); 
         pfc != hc->end(); ++pfc, ++key) {

      if( pfc->pt() > ptMin_ ) {
        selected_.push_back( new reco::PFCandidate(*pfc) );
        reco::PFCandidatePtr ptrToMother( hc, key );
        selected_.back()->setSourcePtr( ptrToMother );
      }
    }
  }

  size_t size() const { return selected_.size(); }

private:
  container selected_;
  double ptMin_;
};

#endif

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