BeamSpotOnlineProducer Class Reference

#include <BeamSpotOnlineProducer.h>

Inheritance diagram for BeamSpotOnlineProducer:

Public Types
typedef std::vector< edm::ParameterSet >	Parameters
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

Public Member Functions
	BeamSpotOnlineProducer (const edm::ParameterSet &iConf)
	constructor More...
void	produce (edm::Event &iEvent, const edm::EventSetup &iSetup) override
	produce a beam spot class More...
	~BeamSpotOnlineProducer () override
	destructor More...
Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default
bool	hasAbilityToProduceInLumis () const final
bool	hasAbilityToProduceInRuns () const final

Private Attributes
const bool	changeFrame_
const edm::EDGetTokenT< L1GlobalTriggerEvmReadoutRecord >	l1GtEvmReadoutRecordToken_
const edm::EDGetTokenT< BeamSpotOnlineCollection >	scalerToken_
const unsigned int	theBeamShoutMode
double	theMaxR2
const double	theMaxZ
const double	theSetSigmaZ

Detailed Description

---

class: BeamSpotOnlineProducer.h package: RecoVertex/BeamSpotProducer

author: Francisco Yumiceva, Fermilab (yumic.nosp@m.eva@.nosp@m.fnal..nosp@m.gov)

---

Definition at line 24 of file BeamSpotOnlineProducer.h.

Member Typedef Documentation

typedef std::vector<edm::ParameterSet> BeamSpotOnlineProducer::Parameters

Definition at line 27 of file BeamSpotOnlineProducer.h.

Constructor & Destructor Documentation

BeamSpotOnlineProducer::BeamSpotOnlineProducer ( const edm::ParameterSet &  iConf )

explicit

constructor

Definition at line 17 of file BeamSpotOnlineProducer.cc.

References edm::ParameterSet::getParameter(), and theMaxR2.

  : changeFrame_ ( iconf.getParameter<bool>  ("changeToCMSCoordinates") )
  , theMaxZ      ( iconf.getParameter<double>("maxZ")                   )
  , theSetSigmaZ ( iconf.getParameter<double>("setSigmaZ")              )
  , scalerToken_               ( consumes<BeamSpotOnlineCollection>       ( iconf.getParameter<InputTag>("src")       ) )
  , l1GtEvmReadoutRecordToken_ ( consumes<L1GlobalTriggerEvmReadoutRecord>( iconf.getParameter<InputTag>("gtEvmLabel")) )
  , theBeamShoutMode ( iconf.getUntrackedParameter<unsigned int> ("beamMode",11) )
{

  theMaxR2 = iconf.getParameter<double>("maxRadius");
  theMaxR2*=theMaxR2;

  produces<reco::BeamSpot>();

} 

BeamSpotOnlineProducer::~BeamSpotOnlineProducer ( )

override

destructor

Definition at line 33 of file BeamSpotOnlineProducer.cc.

{}

Member Function Documentation

void BeamSpotOnlineProducer::produce ( edm::Event &  iEvent, const edm::EventSetup &  iSetup  )

override

produce a beam spot class

Definition at line 36 of file BeamSpotOnlineProducer.cc.

References L1GtfeExtWord::beamMode(), align::BeamSpot, changeFrame_, DEFINE_FWK_MODULE, BeamSpotOnline::dxdz(), BeamSpotOnline::dydz(), BeamSpotOnline::err_sigma_z(), BeamSpotOnline::err_x(), BeamSpotOnline::err_y(), BeamSpotOnline::err_z(), f, edm::EventSetup::get(), BeamSpotObjects::GetBeamWidthX(), BeamSpotObjects::GetBeamWidthY(), BeamSpotObjects::GetBetaStar(), edm::Event::getByToken(), BeamSpotObjects::GetCovariance(), BeamSpotObjects::Getdxdz(), BeamSpotObjects::Getdydz(), BeamSpotObjects::GetEmittanceX(), BeamSpotObjects::GetEmittanceY(), BeamSpotObjects::GetSigmaZ(), BeamSpotObjects::GetX(), BeamSpotObjects::GetY(), BeamSpotObjects::GetZ(), L1GlobalTriggerEvmReadoutRecord::gtfeWord(), mps_fire::i, l1GtEvmReadoutRecordToken_, reco::BeamSpot::LHC, makeMuonMisalignmentScenario::matrix, eostools::move(), edm::ESHandle< T >::product(), edm::Event::put(), diffTwoXMLs::r2, mps_fire::result, scalerToken_, BeamSpotOnline::sigma_z(), fftjetvertexadder_cfi::sigmaZ, theBeamShoutMode, theMaxR2, theMaxZ, theSetSigmaZ, reco::BeamSpot::Tracker, BeamSpotOnline::width_x(), BeamSpotOnline::width_y(), BeamSpotOnline::x(), BeamSpotOnline::y(), and BeamSpotOnline::z().

{
  //shout MODE only in stable beam
  bool shoutMODE=false;
  edm::Handle<L1GlobalTriggerEvmReadoutRecord> gtEvmReadoutRecord;
  if (iEvent.getByToken(l1GtEvmReadoutRecordToken_, gtEvmReadoutRecord)){
    if (gtEvmReadoutRecord->gtfeWord().beamMode() == theBeamShoutMode) shoutMODE=true;
  }
  else{
    shoutMODE=true;
  }

  // get scalar collection
  Handle<BeamSpotOnlineCollection> handleScaler;
  iEvent.getByToken( scalerToken_, handleScaler);

  // beam spot scalar object
  BeamSpotOnline spotOnline;

  // product is a reco::BeamSpot object
  auto result = std::make_unique<reco::BeamSpot>();
  
  reco::BeamSpot aSpot;

  bool fallBackToDB=false;
  if (!handleScaler->empty()){
    // get one element
    spotOnline = * ( handleScaler->begin() );
    
    // in case we need to switch to LHC reference frame
    // ignore for the moment rotations, and translations
    double f = 1.;
    if (changeFrame_) f = -1.;
    
    reco::BeamSpot::Point apoint( f* spotOnline.x(), spotOnline.y(), f* spotOnline.z() );
    
    reco::BeamSpot::CovarianceMatrix matrix;
    matrix(0,0) = spotOnline.err_x()*spotOnline.err_x();
    matrix(1,1) = spotOnline.err_y()*spotOnline.err_y();
    matrix(2,2) = spotOnline.err_z()*spotOnline.err_z();
    matrix(3,3) = spotOnline.err_sigma_z()*spotOnline.err_sigma_z();
    
    double sigmaZ = spotOnline.sigma_z();
    if (theSetSigmaZ>0)
      sigmaZ = theSetSigmaZ;
    
    aSpot = reco::BeamSpot( apoint,
                sigmaZ,
                spotOnline.dxdz(),
                f* spotOnline.dydz(),
                spotOnline.width_x(),
                matrix);
    
    aSpot.setBeamWidthY( spotOnline.width_y() );
    aSpot.setEmittanceX( 0. );
    aSpot.setEmittanceY( 0. );
    aSpot.setbetaStar( 0.) ;
    aSpot.setType( reco::BeamSpot::LHC ); // flag value from scalars
    
    // check if we have a valid beam spot fit result from online DQM
    if ( spotOnline.x() == 0 &&
     spotOnline.y() == 0 &&
     spotOnline.z() == 0 &&
     spotOnline.width_x() == 0 &&
     spotOnline.width_y() == 0 ) 
      {
    if (shoutMODE){
      edm::LogWarning("BeamSpotFromDB") 
      << "Online Beam Spot producer falls back to DB value because the scaler values are zero ";
    }
    fallBackToDB=true;
      }
    double r2=spotOnline.x()*spotOnline.x() + spotOnline.y()*spotOnline.y();
    if (fabs(spotOnline.z())>=theMaxZ || r2>=theMaxR2){
      if (shoutMODE){
    edm::LogError("BeamSpotFromDB") 
      << "Online Beam Spot producer falls back to DB value because the scaler values are too big to be true :"
      <<spotOnline.x()<<" "<<spotOnline.y()<<" "<<spotOnline.z();
      }
      fallBackToDB=true;
    }
  }
  else{
    //empty online beamspot collection: FED data was empty
    //the error should probably have been send at unpacker level
    fallBackToDB=true;
  }
      
  if (fallBackToDB){

    edm::ESHandle< BeamSpotObjects > beamhandle;
    iSetup.get<BeamSpotObjectsRcd>().get(beamhandle);
    const BeamSpotObjects *spotDB = beamhandle.product();

    // translate from BeamSpotObjects to reco::BeamSpot
    reco::BeamSpot::Point apoint( spotDB->GetX(), spotDB->GetY(), spotDB->GetZ() );
  
    reco::BeamSpot::CovarianceMatrix matrix;
    for ( int i=0; i<7; ++i ) {
      for ( int j=0; j<7; ++j ) {
    matrix(i,j) = spotDB->GetCovariance(i,j);
      }
    }
  
    // this assume beam width same in x and y
    aSpot = reco::BeamSpot( apoint,
                spotDB->GetSigmaZ(),
                spotDB->Getdxdz(),
                spotDB->Getdydz(),
                spotDB->GetBeamWidthX(),
                matrix );
    aSpot.setBeamWidthY( spotDB->GetBeamWidthY() );
    aSpot.setEmittanceX( spotDB->GetEmittanceX() );
    aSpot.setEmittanceY( spotDB->GetEmittanceY() );
    aSpot.setbetaStar( spotDB->GetBetaStar() );
    aSpot.setType( reco::BeamSpot::Tracker );

  }
  
  *result = aSpot;

  iEvent.put(std::move(result));

}

Member Data Documentation

const bool BeamSpotOnlineProducer::changeFrame_

private

Definition at line 39 of file BeamSpotOnlineProducer.h.

Referenced by produce().

const edm::EDGetTokenT<L1GlobalTriggerEvmReadoutRecord> BeamSpotOnlineProducer::l1GtEvmReadoutRecordToken_

private

Definition at line 43 of file BeamSpotOnlineProducer.h.

Referenced by produce().

const edm::EDGetTokenT<BeamSpotOnlineCollection> BeamSpotOnlineProducer::scalerToken_

private

Definition at line 42 of file BeamSpotOnlineProducer.h.

Referenced by produce().

const unsigned int BeamSpotOnlineProducer::theBeamShoutMode

private

Definition at line 45 of file BeamSpotOnlineProducer.h.

Referenced by produce().

double BeamSpotOnlineProducer::theMaxR2

private

Definition at line 41 of file BeamSpotOnlineProducer.h.

Referenced by BeamSpotOnlineProducer(), and produce().

const double BeamSpotOnlineProducer::theMaxZ

private

Definition at line 40 of file BeamSpotOnlineProducer.h.

Referenced by produce().

const double BeamSpotOnlineProducer::theSetSigmaZ

private

Definition at line 40 of file BeamSpotOnlineProducer.h.

Referenced by produce().