#include <L1JPTOffsetCorrector.h>

Inheritance diagram for L1JPTOffsetCorrector:

Public Member Functions
virtual double	correction (const LorentzVector &fJet) const
	get correction using Jet information only
virtual double	correction (const reco::Jet &fJet) const
	apply correction using Jet information only
virtual double	correction (const reco::Jet &fJet, const edm::Event &fEvent, const edm::EventSetup &fSetup) const
	apply correction using all event information
virtual bool	eventRequired () const
	if correction needs event information
	L1JPTOffsetCorrector (const JetCorrectorParameters &fConfig, const edm::ParameterSet &fParameters)
virtual bool	refRequired () const
	if correction needs the jet reference
virtual	~L1JPTOffsetCorrector ()
Private Attributes
FactorizedJetCorrector *	mCorrector
bool	mIsOffsetSet
std::string	mOffsetService

Detailed Description

Definition at line 17 of file L1JPTOffsetCorrector.h.

Constructor & Destructor Documentation

L1JPTOffsetCorrector::L1JPTOffsetCorrector	(	const JetCorrectorParameters &	fConfig,
		const edm::ParameterSet &	fParameters
	)

Definition at line 24 of file L1JPTOffsetCorrector.cc.

References JetCorrectorParameters::definitions(), and edm::ParameterSet::getParameter().

{
  mOffsetService = fConfig.getParameter<std::string>("offsetService");
  mIsOffsetSet = false;
  if (mOffsetService != "")
    mIsOffsetSet = true;
  if (fParam.definitions().level() != "L1JPTOffset")
    throw cms::Exception("L1OffsetCorrector")<<" correction level: "<<fParam.definitions().level()<<" is not L1JPTOffset"; 
  vector<JetCorrectorParameters> vParam;
  vParam.push_back(fParam);
  mCorrector = new FactorizedJetCorrector(vParam);
}

L1JPTOffsetCorrector::~L1JPTOffsetCorrector ( ) [virtual]

Definition at line 39 of file L1JPTOffsetCorrector.cc.

{
  delete mCorrector;
}

Member Function Documentation

double L1JPTOffsetCorrector::correction ( const LorentzVector & fJet ) const [virtual]

get correction using Jet information only

Implements JetCorrector.

Definition at line 46 of file L1JPTOffsetCorrector.cc.

References Exception.

{
  throw cms::Exception("EventRequired")
    <<"Wrong interface correction(LorentzVector), event required!";
  return 1.0;
}

double L1JPTOffsetCorrector::correction ( const reco::Jet & fJet ) const [virtual]

apply correction using Jet information only

Implements JetCorrector.

Definition at line 55 of file L1JPTOffsetCorrector.cc.

References Exception.

{
  throw cms::Exception("EventRequired")
    <<"Wrong interface correction(reco::Jet), event required!";
  return 1.0;
}

double L1JPTOffsetCorrector::correction	(	const reco::Jet &	fJet,
		const edm::Event &	fEvent,
		const edm::EventSetup &	fSetup
	)		const `[virtual]`

apply correction using all event information

Reimplemented from JetCorrector.

Definition at line 64 of file L1JPTOffsetCorrector.cc.

References JetCorrector::correction(), reco::LeafCandidate::energy(), reco::JPTJet::getCaloJetRef(), JetCorrector::getJetCorrector(), evf::evtn::offset(), reco::LeafCandidate::px(), reco::LeafCandidate::py(), reco::LeafCandidate::pz(), and query::result.

{
  double result = 1.;
  const reco::JPTJet& jptjet = dynamic_cast <const reco::JPTJet&> (fJet);
  edm::RefToBase<reco::Jet> jptjetRef = jptjet.getCaloJetRef();
  reco::CaloJet const * rawcalojet = dynamic_cast<reco::CaloJet const *>( &* jptjetRef);   
  //------ access the offset correction service ----------------
  double offset = 1.0;
  if (mIsOffsetSet) {
    const JetCorrector* OffsetCorrector = JetCorrector::getJetCorrector(mOffsetService,fSetup); 
    offset = OffsetCorrector->correction(*rawcalojet,fEvent,fSetup); 
  }
  //------ calculate the correction for the JPT jet ------------
  TLorentzVector JPTrawP4(rawcalojet->px(),rawcalojet->py(),rawcalojet->pz(),rawcalojet->energy());
  mCorrector->setJPTrawP4(JPTrawP4);
  mCorrector->setJPTrawOff(offset);
  mCorrector->setJetE(fJet.energy());
  result = mCorrector->getCorrection();
  return result;
}