HLTEventSelector Class Reference

#include <HLTEventSelector.h>

Inheritance diagram for HLTEventSelector:

Public Member Functions
	HLTEventSelector (const edm::ParameterSet &)
virtual bool	select (const edm::Event &) const
	decision of the selector module More...
virtual	~HLTEventSelector ()
Public Member Functions inherited from EventSelector
const std::vector< std::string > &	description ()
const std::vector< std::string > &	description ()
	EventSelector ()
	EventSelector ()
	EventSelector (const edm::ParameterSet &iConfig)
	EventSelector (const edm::ParameterSet &iConfig)
const std::string &	name () const
	name of the module (from configuration) More...
const std::string &	name () const
	name of the module (from configuration) More...
virtual	~EventSelector ()
virtual	~EventSelector ()

Private Attributes
std::vector< std::string >	pathNames_
	trigger path names (ORed) More...
edm::InputTag	triggerResults_
	tag for input collection More...

Additional Inherited Members
Protected Attributes inherited from EventSelector
std::vector< std::string >	description_
std::string	name_

Detailed Description

Trivial example for a HLT selector. To be modified for analysis!

Definition at line 22 of file HLTEventSelector.h.

Constructor & Destructor Documentation

HLTEventSelector::HLTEventSelector

(

const edm::ParameterSet &

pset

)

Definition at line 8 of file HLTEventSelector.cc.

References edm::ParameterSet::getParameter(), pathNames_, and triggerResults_.

                                                              {
  // input collection
  triggerResults_ = pset.getParameter<edm::InputTag>("triggerResults");
  // trigger path names
  pathNames_ = pset.getParameter< std::vector<std::string> >("pathNames");

  edm::LogInfo("HLTEventSelector") << "constructed with \n"
                   << "  src = " << triggerResults_ << "\n"
                   << "  #pathnames = " << pathNames_.size();
}

virtual HLTEventSelector::~HLTEventSelector ( )

inlinevirtual

Definition at line 26 of file HLTEventSelector.h.

{}

Member Function Documentation

bool HLTEventSelector::select ( const edm::Event &  ) const

virtual

decision of the selector module

Implements EventSelector.

Definition at line 20 of file HLTEventSelector.cc.

References i, getHLTprescales::index, edm::HandleBase::isValid(), LogDebug, pathNames_, edm::TriggerNames::size(), edm::TriggerNames::triggerIndex(), edm::TriggerNames::triggerNames(), and triggerResults_.

{
  //
  // get the trigger results and check validity
  //
  edm::Handle<edm::TriggerResults> hltHandle;
  event.getByLabel(triggerResults_, hltHandle);
  if ( !hltHandle.isValid() ) {
    edm::LogWarning("HLTEventSelector") << "No trigger results for InputTag " << triggerResults_;
    return false;
  }
  //
  // get results
  //
  const edm::TriggerNames & trgNames = event.triggerNames(*hltHandle);
  unsigned int trgSize = trgNames.size();
//   static int first(true);
//   if ( first ) {
//     first = false;
//     std::cout << "Trigger menu" << std::endl;
//     for ( unsigned int i=0; i<trgSize; ++i ) {
//       std::cout << trgNames.triggerName(i) << std::endl;
//     }
//   }
//
// example for OR of all specified triggers
//
  for ( std::vector<std::string>::const_iterator i=pathNames_.begin();
    i!=pathNames_.end(); ++i ) {
    // get index
    unsigned int index = trgNames.triggerIndex(*i);
    if ( index==trgSize ) {
      edm::LogWarning("HLTEventSelector") << "Unknown trigger name " << *i;
//       return false;
      continue;
    }
//     if ( !hltHandle->accept(index) )  return false;
    if ( hltHandle->accept(index) ) {
      LogDebug("HLTEventSelector") << "Event selected by " << *i;
      return true;
    }
  }
//   return true;
  LogDebug("HLTEventSelector") << "Event rejected";
  return false;
}

Member Data Documentation

std::vector<std::string> HLTEventSelector::pathNames_

private

trigger path names (ORed)

Definition at line 29 of file HLTEventSelector.h.

Referenced by HLTEventSelector(), and select().

edm::InputTag HLTEventSelector::triggerResults_

private

tag for input collection

Definition at line 28 of file HLTEventSelector.h.

Referenced by HLTEventSelector(), and select().