Inheritance diagram for PrescalerFHN:

Public Member Functions
	PrescalerFHN (const edm::ParameterSet &)
	~PrescalerFHN ()
Private Member Functions
virtual void	beginJob ()
virtual void	endJob ()
virtual bool	filter (edm::Event &, const edm::EventSetup &)
void	init (const edm::TriggerResults &, const edm::TriggerNames &triggerNames)
Private Attributes
std::map< std::string, unsigned int >	prescale_counter
std::map< std::string, unsigned int >	prescales
std::map< std::string, unsigned int >	trigger_indices
edm::ParameterSetID	triggerNamesID_
edm::InputTag	triggerTag

Detailed Description

Definition at line 47 of file PrescalerFHN.cc.

Constructor & Destructor Documentation

PrescalerFHN::PrescalerFHN ( const edm::ParameterSet & iConfig ) [explicit]

Definition at line 82 of file PrescalerFHN.cc.

References edm::ParameterSet::getParameter(), mergeVDriftHistosByStation::name, prescale_counter, and prescales.

  : triggerTag(iConfig.getParameter<edm::InputTag>("TriggerResultsTag"))
{
   //now do what ever initialization is needed
  std::vector<edm::ParameterSet> prescales_in(iConfig.getParameter<std::vector<edm::ParameterSet> >("Prescales"));

  for (std::vector<edm::ParameterSet>::const_iterator cit = prescales_in.begin();
       cit != prescales_in.end(); cit++) {

    std::string name(cit->getParameter<std::string>("HLTName"));
    unsigned int factor(cit->getParameter<unsigned int>("PrescaleFactor"));

    // does some exception get thrown if parameters aren't available? should test...

    prescales[name] = factor;
    prescale_counter[name] = 0;
  }
  
}

PrescalerFHN::~PrescalerFHN ( )

Definition at line 103 of file PrescalerFHN.cc.

{
 
   // do anything here that needs to be done at desctruction time
   // (e.g. close files, deallocate resources etc.)

}

Member Function Documentation

void PrescalerFHN::beginJob ( void ) [private, virtual]

Reimplemented from edm::EDFilter.

Definition at line 185 of file PrescalerFHN.cc.

{
}

void PrescalerFHN::endJob ( void ) [private, virtual]

Reimplemented from edm::EDFilter.

Definition at line 191 of file PrescalerFHN.cc.

{
}

bool PrescalerFHN::filter	(	edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)		`[private, virtual]`

Implements edm::EDFilter.

Definition at line 137 of file PrescalerFHN.cc.

References edm::Event::getByLabel(), init(), LogDebug, prescale_counter, prescales, trigger_indices, edm::Event::triggerNames(), triggerNamesID_, and triggerTag.

{
   using namespace edm;

   /* Goal for this skim:
      Prescaling MET HLT paths
      Option to turn off HSCP filter
      - Doing that by treating it as an HLT with prescale 1
   */

   // Trying to mirror HLTrigger/HLTfilters/src/HLTHighLevel.cc where possible

   Handle<TriggerResults> trh;
   iEvent.getByLabel(triggerTag, trh);

   if (trh.isValid()) {
     LogDebug("") << "TriggerResults found, number of HLT paths: " << trh->size();
   } else {
     LogDebug("") << "TriggerResults product not found - returning result=false!";
     return false;
   }

   const edm::TriggerNames & triggerNames = iEvent.triggerNames(*trh);
   if (triggerNamesID_ != triggerNames.parameterSetID()) {
     triggerNamesID_ = triggerNames.parameterSetID();
     init(*trh, triggerNames);
   }

   // Trigger indices are ready at this point
   // - Begin checking for HLT bits

   bool accept_event = false;
   for (std::map<std::string, unsigned int>::const_iterator cit = trigger_indices.begin();
        cit != trigger_indices.end(); cit++) {
     if (trh->accept(cit->second)) {
       prescale_counter[cit->first]++;
       if (prescale_counter[cit->first] >= prescales[cit->first]) {
         accept_event = true;
         prescale_counter[cit->first] = 0;
       }
     }
   }

   return accept_event;
}

void PrescalerFHN::init	(	const edm::TriggerResults &	result,
		const edm::TriggerNames &	triggerNames
	)		`[private]`

Definition at line 116 of file PrescalerFHN.cc.

References LogDebug, prescales, edm::HLTGlobalStatus::size(), trigger_indices, and edm::TriggerNames::triggerIndex().

Referenced by filter().

{
  trigger_indices.clear();

  for (std::map<std::string, unsigned int>::const_iterator cit = prescales.begin();
       cit != prescales.end(); cit++) {

    trigger_indices[cit->first] = triggerNames.triggerIndex(cit->first);
    
    if (trigger_indices[cit->first] >= result.size()) {
      // trigger path not found
      LogDebug("") << "requested HLT path does not exist: " << cit->first;
      trigger_indices.erase(cit->first);
    }
    
  }
}