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	hasAbilityToProduceInBeginProcessBlocks () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndProcessBlocks () 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.