BaseEvtVtxGenerator Class Reference

#include <BaseEvtVtxGenerator.h>

Inheritance diagram for BaseEvtVtxGenerator:

Public Member Functions
	BaseEvtVtxGenerator (const edm::ParameterSet &)
virtual TMatrixD const *	GetInvLorentzBoost () const =0
virtual HepMC::FourVector	newVertex (CLHEP::HepRandomEngine *) const =0
void	produce (edm::Event &, const edm::EventSetup &) override
	~BaseEvtVtxGenerator () override
Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default
bool	hasAbilityToProduceInBeginLumis () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndRuns () const final

Private Attributes
edm::EDGetTokenT< edm::HepMCProduct >	sourceToken

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
typedef CacheContexts< T... >	CacheTypes
typedef CacheTypes::GlobalCache	GlobalCache
typedef AbilityChecker< T... >	HasAbility
typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache
typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext
typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache
typedef CacheTypes::RunCache	RunCache
typedef RunContextT< RunCache, GlobalCache >	RunContext
typedef CacheTypes::RunSummaryCache	RunSummaryCache

Detailed Description

Definition at line 23 of file BaseEvtVtxGenerator.h.

Constructor & Destructor Documentation

BaseEvtVtxGenerator()

BaseEvtVtxGenerator::BaseEvtVtxGenerator ( const edm::ParameterSet &  pset )

explicit

Definition at line 29 of file BaseEvtVtxGenerator.cc.

                                                                 {
  Service<RandomNumberGenerator> rng;
  if (!rng.isAvailable()) {
    throw cms::Exception("Configuration") << "The BaseEvtVtxGenerator requires the RandomNumberGeneratorService\n"
                                             "which is not present in the configuration file. \n"
                                             "You must add the service\n"
                                             "in the configuration file or remove the modules that require it.";
  }
 
  sourceToken = consumes<edm::HepMCProduct>(pset.getParameter<edm::InputTag>("src"));
  produces<edm::HepMCProduct>();
}

References Exception, edm::Service< T >::isAvailable(), and muonDTDigis_cfi::pset.

~BaseEvtVtxGenerator()

BaseEvtVtxGenerator::~BaseEvtVtxGenerator ( )

override

Definition at line 42 of file BaseEvtVtxGenerator.cc.

{}

Member Function Documentation

GetInvLorentzBoost()

virtual TMatrixD const* BaseEvtVtxGenerator::GetInvLorentzBoost ( ) const

pure virtual

This method - and the comment - is a left-over from COBRA-OSCAR time : return the last generated event vertex. If no vertex has been generated yet, a NULL pointer is returned.

Implemented in BetafuncEvtVtxGenerator, HLLHCEvtVtxGenerator, PassThroughEvtVtxGenerator, FlatEvtVtxGenerator, BeamProfileVtxGenerator, and GaussEvtVtxGenerator.

newVertex()

virtual HepMC::FourVector BaseEvtVtxGenerator::newVertex ( CLHEP::HepRandomEngine *  ) const

pure virtual

Implemented in BetafuncEvtVtxGenerator, HLLHCEvtVtxGenerator, PassThroughEvtVtxGenerator, FlatEvtVtxGenerator, BeamProfileVtxGenerator, and GaussEvtVtxGenerator.

produce()

void BaseEvtVtxGenerator::produce ( edm::Event &  evt, const edm::EventSetup &    )

override

Definition at line 44 of file BaseEvtVtxGenerator.cc.

                                                               {
  edm::Service<edm::RandomNumberGenerator> rng;
  CLHEP::HepRandomEngine* engine = &rng->getEngine(evt.streamID());
 
  Handle<HepMCProduct> HepUnsmearedMCEvt;
 
  evt.getByToken(sourceToken, HepUnsmearedMCEvt);
 
  // Copy the HepMC::GenEvent
  HepMC::GenEvent* genevt = new HepMC::GenEvent(*HepUnsmearedMCEvt->GetEvent());
  std::unique_ptr<edm::HepMCProduct> HepMCEvt(new edm::HepMCProduct(genevt));
  // generate new vertex & apply the shift
  //
  HepMCEvt->applyVtxGen(newVertex(engine));
 
  //HepMCEvt->LorentzBoost( 0., 142.e-6 );
  HepMCEvt->boostToLab(GetInvLorentzBoost(), "vertex");
  HepMCEvt->boostToLab(GetInvLorentzBoost(), "momentum");
 
  evt.put(std::move(HepMCEvt));
 
  return;
}

References edm::Event::getByToken(), edm::RandomNumberGenerator::getEngine(), edm::HepMCProduct::GetEvent(), eostools::move(), edm::Event::put(), and edm::Event::streamID().

Member Data Documentation

sourceToken

edm::EDGetTokenT<edm::HepMCProduct> BaseEvtVtxGenerator::sourceToken

private

Definition at line 41 of file BaseEvtVtxGenerator.h.