#include <MinMETProducerT.h>

Inheritance diagram for MinMETProducerT< T >:

Public Member Functions
	MinMETProducerT (const edm::ParameterSet &cfg)

	~MinMETProducerT ()

Public Member Functions inherited from edm::EDProducer
	EDProducer ()

virtual	~EDProducer ()

Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()

void	registerProducts (ProducerBase , ProductRegistry , ModuleDescription const &)

boost::function< void(const BranchDescription &)>	registrationCallback () const
	used by the fwk to register list of products More...

virtual	~ProducerBase ()

Private Types
typedef std::vector< T >	METCollection

typedef std::vector < edm::InputTag >	vInputTag

Private Member Functions
void	produce (edm::Event &evt, const edm::EventSetup &es)

Private Attributes
std::string	moduleLabel_

vInputTag	src_

Additional Inherited Members
Public Types inherited from edm::EDProducer
typedef EDProducer	ModuleType

typedef WorkerT< EDProducer >	WorkerType

Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Static Public Member Functions inherited from edm::EDProducer
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Protected Member Functions inherited from edm::EDProducer
CurrentProcessingContext const *	currentContext () const

Protected Member Functions inherited from edm::ProducerBase
template<class TProducer , class TMethod >
void	callWhenNewProductsRegistered (TProducer *iProd, TMethod iMethod)

Detailed Description

template<typename T>
class MinMETProducerT< T >

Produce MET object representing the minimum missing transverse energy of set of MET objects given as input

NOTE: class is templated to that it works with reco::CaloMET as well as with reco::PFMET objects as input

Author: Christian Veelken, LLR

Version

Revision:: 1.1

Id:: MinMETProducerT.h,v 1.1 2012/09/15 16:45:33 veelken Exp

Definition at line 29 of file MinMETProducerT.h.

Member Typedef Documentation

template<typename T >

typedef std::vector<T> MinMETProducerT< T >::METCollection

private

Definition at line 31 of file MinMETProducerT.h.

template<typename T >

typedef std::vector<edm::InputTag> MinMETProducerT< T >::vInputTag

private

Definition at line 80 of file MinMETProducerT.h.

Constructor & Destructor Documentation

template<typename T >

MinMETProducerT< T >::MinMETProducerT ( const edm::ParameterSet & cfg )

inlineexplicit

Definition at line 35 of file MinMETProducerT.h.

References edm::ParameterSet::getParameter(), and MinMETProducerT< T >::src_.

     : moduleLabel_(cfg.getParameter<std::string>("@module_label"))
   {
     src_ = cfg.getParameter<vInputTag>("src");
 
     produces<METCollection>();
   }

template<typename T >

MinMETProducerT< T >::~MinMETProducerT ( )

inline

Definition at line 42 of file MinMETProducerT.h.

42 {}

Member Function Documentation

template<typename T >

void MinMETProducerT< T >::produce	(	edm::Event &	evt,
		const edm::EventSetup &	es
	)

inlineprivatevirtual

Implements edm::EDProducer.

Definition at line 46 of file MinMETProducerT.h.

References edm::Event::getByLabel(), edm::Event::put(), and MinMETProducerT< T >::src_.

   {
     std::auto_ptr<METCollection> outputMETs(new METCollection());
 
     // check that all MET collections given as input have the same number of entries
     int numMEtObjects = -1;
     for ( vInputTag::const_iterator src_i = src_.begin();
       src_i != src_.end(); ++src_i ) {
       edm::Handle<METCollection> inputMETs;
       evt.getByLabel(*src_i, inputMETs);
       if ( numMEtObjects == -1 ) numMEtObjects = inputMETs->size();
       else if ( numMEtObjects != (int)inputMETs->size() )
     throw cms::Exception("MinMETProducer::produce")
       << "Mismatch in number of input MET objects !!\n";
     }
     
     for ( int iMEtObject = 0; iMEtObject < numMEtObjects; ++iMEtObject ) {
       const T* minMET = 0;
       for ( vInputTag::const_iterator src_i = src_.begin();
         src_i != src_.end(); ++src_i ) {
     edm::Handle<METCollection> inputMETs;
     evt.getByLabel(*src_i, inputMETs);
     const T& inputMET = inputMETs->at(iMEtObject);
     if ( minMET == 0 || inputMET.pt() < minMET->pt() ) minMET = &inputMET;
       }
       assert(minMET);
       outputMETs->push_back(T(*minMET));
     }
 
     evt.put(outputMETs);
   }