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
	EDProducer (const EDProducer &)=delete
bool	hasAbilityToProduceInBeginLumis () const final
bool	hasAbilityToProduceInBeginProcessBlocks () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndProcessBlocks () const final
bool	hasAbilityToProduceInEndRuns () const final
const EDProducer &	operator= (const EDProducer &)=delete

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

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

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

                                                                 {
  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>();
}

~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, GaussEvtVtxGenerator, FlatEvtVtxGenerator, PassThroughEvtVtxGenerator, and BeamProfileVtxGenerator.

newVertex()

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

pure virtual

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

produce()

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

override

Definition at line 44 of file BaseEvtVtxGenerator.cc.

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

                                                               {
  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;
}

Member Data Documentation

sourceToken

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

private

Definition at line 41 of file BaseEvtVtxGenerator.h.