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00001 #include "FWCore/Framework/interface/Event.h"
00002 #include "FWCore/Framework/interface/MakerMacros.h"
00003 #include "FWCore/ServiceRegistry/interface/Service.h"
00004 
00005 #include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"
00006 
00007 #include "RecoParticleFlow/Configuration/plugins/HepMCCopy.h"
00008 #include "HepMC/GenEvent.h"
00009 
00010 HepMCCopy::HepMCCopy(edm::ParameterSet const & p)  
00011 {    
00012   // This producer produces a HepMCProduct, a copy of the original one
00013   produces<edm::HepMCProduct>();
00014 }
00015 
00016 void HepMCCopy::produce(edm::Event & iEvent, const edm::EventSetup & es)
00017 {
00018   
00019   edm::Handle<edm::HepMCProduct> theHepMCProduct;
00020   bool source = iEvent.getByLabel("generator",theHepMCProduct);
00021   if ( !source ) { 
00022     std::auto_ptr<edm::HepMCProduct> pu_product(new edm::HepMCProduct());  
00023     iEvent.put(pu_product);
00024   } else { 
00025     std::auto_ptr<edm::HepMCProduct> pu_product(new edm::HepMCProduct(*theHepMCProduct));  
00026     iEvent.put(pu_product);
00027   }
00028 
00029 }
00030 
00031 DEFINE_FWK_MODULE(HepMCCopy);

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