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/data/refman/pasoursint/CMSSW_4_4_5_patch3/src/CommonTools/UtilAlgos/interface/ObjectCountEventSelector.h

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00001 #ifndef CommonTools_UtilAlgos_ObjectCountEventSelector_h
00002 #define CommonTools_UtilAlgos_ObjectCountEventSelector_h
00003 
00016 #include "FWCore/Framework/interface/Event.h"
00017 #include "FWCore/ParameterSet/interface/ParameterSet.h"
00018 #include "FWCore/Utilities/interface/InputTag.h"
00019 #include "CommonTools/UtilAlgos/interface/ParameterAdapter.h"
00020 #include "CommonTools/UtilAlgos/interface/CollectionFilterTrait.h"
00021 #include "CommonTools/UtilAlgos/interface/EventSelectorBase.h"
00022 
00023 template<typename C, 
00024          typename S = AnySelector,
00025          typename N = MinNumberSelector,
00026          typename CS = typename helper::CollectionFilterTrait<C, S, N>::type>
00027 class ObjectCountEventSelector : public EventSelectorBase
00028 {
00029  public:
00031   explicit ObjectCountEventSelector( const edm::ParameterSet & cfg ) :
00032     src_( cfg.template getParameter<edm::InputTag>( "src" ) ),
00033     select_( reco::modules::make<S>( cfg ) ),
00034     sizeSelect_( reco::modules::make<N>( cfg ) ) {
00035   }
00036  
00037   bool operator()(edm::Event& evt, const edm::EventSetup&) {
00038     edm::Handle<C> source;
00039     evt.getByLabel( src_, source );
00040     return CS::filter( * source, select_, sizeSelect_ );
00041   }
00042  
00043  private:
00045   edm::InputTag src_;
00046  
00048   S select_;
00049  
00051   N sizeSelect_;
00052 };
00053 
00054 #endif