pat::GenMETExtractor Class Reference

Retrieves the genMET from a pat::MET. More...

#include "PhysicsTools/PatAlgos/interface/GenMETExtractor.h"

Inheritance diagram for pat::GenMETExtractor:

Public Member Functions
	GenMETExtractor (const edm::ParameterSet &iConfig)
virtual void	produce (edm::StreamID streamID, edm::Event &iEvent, const edm::EventSetup &iSetup) const
	~GenMETExtractor ()
Public Member Functions inherited from edm::global::EDProducer<>
	EDProducer ()=default
Public Member Functions inherited from edm::global::EDProducerBase
	EDProducerBase ()
ModuleDescription const &	moduleDescription () const
virtual	~EDProducerBase ()
Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()
void	registerProducts (ProducerBase *, ProductRegistry *, ModuleDescription const &)
std::function< void(BranchDescription const &)>	registrationCallback () const
	used by the fwk to register list of products More...
virtual	~ProducerBase ()
Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const
	EDConsumerBase ()
ProductHolderIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
void	itemsToGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
std::vector < ProductHolderIndexAndSkipBit > const &	itemsToGetFromEvent () const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	modulesDependentUpon (const std::string &iProcessName, std::vector< const char * > &oModuleLabels) const
void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
bool	registeredToConsume (ProductHolderIndex, bool, BranchType) const
bool	registeredToConsumeMany (TypeID const &, BranchType) const
void	updateLookup (BranchType iBranchType, ProductHolderIndexHelper const &)
virtual	~EDConsumerBase ()

Private Attributes
edm::EDGetTokenT< std::vector < pat::MET > >	metSrcToken_

Additional Inherited Members
Public Types inherited from edm::global::EDProducerBase
typedef EDProducerBase	ModuleType
Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList
Static Public Member Functions inherited from edm::global::EDProducerBase
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &descriptions)
Protected Member Functions inherited from edm::ProducerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)
EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)
ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...
template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()
void	consumesMany (const TypeToGet &id)
template<BranchType B>
void	consumesMany (const TypeToGet &id)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

Detailed Description

Retrieves the genMET from a pat::MET.

The GenMETExtractor produces the analysis-level pat::MET starting from a collection of objects of METType.

Author

Matthieu Marionneau

Version

Id:

GenMETExtractor.h,v 1.0 2015/07/22 mmarionn Exp

Definition at line 28 of file GenMETExtractor.h.

Constructor & Destructor Documentation

GenMETExtractor::GenMETExtractor ( const edm::ParameterSet &  iConfig )

explicit

Definition at line 10 of file GenMETExtractor.cc.

References edm::ParameterSet::getParameter(), and metSrcToken_.

                                                               {

  edm::InputTag metIT = iConfig.getParameter<edm::InputTag>("metSource");
  metSrcToken_ = consumes<pat::METCollection>(metIT);

  // produces vector of genMet
  produces<std::vector<reco::GenMET> >();
}

GenMETExtractor::~GenMETExtractor

(

)

Definition at line 20 of file GenMETExtractor.cc.

                                  {

}

Member Function Documentation

void GenMETExtractor::produce ( edm::StreamID  streamID, edm::Event &  iEvent, const edm::EventSetup &  iSetup  ) const

virtual

Implements edm::global::EDProducerBase.

Definition at line 25 of file GenMETExtractor.cc.

References HepMCValidationHelper::genMet(), edm::Event::getByToken(), metSrcToken_, edm::Event::put(), and alcazmumu_cfi::src.

                                                      {

  edm::Handle<std::vector<pat::MET> >  src;
  iEvent.getByToken(metSrcToken_, src);
  if(src->size()==0) edm::LogError("GenMETExtractor::produce") << "input genMET collection is empty" ;

  const reco::GenMET *genMet =  src->front().genMET();
  
  std::vector<reco::GenMET> *genMetCol = new std::vector<reco::GenMET>();
  genMetCol->push_back( (*genMet) );

  std::auto_ptr<std::vector<reco::GenMET> > genMETs(genMetCol);
  iEvent.put(genMETs);
}

Member Data Documentation

edm::EDGetTokenT<std::vector<pat::MET> > pat::GenMETExtractor::metSrcToken_

private

Definition at line 40 of file GenMETExtractor.h.

Referenced by GenMETExtractor(), and produce().