TriggerExpressionData.cc

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#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Common/interface/TriggerNames.h"
#include "FWCore/Utilities/interface/Exception.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/Common/interface/TriggerResults.h"
#include "DataFormats/L1TGlobal/interface/GlobalAlgBlk.h"
#include "CondFormats/DataRecord/interface/L1TUtmTriggerMenuRcd.h"
#include "CondFormats/L1TObjects/interface/L1TUtmTriggerMenu.h"
#include "HLTrigger/HLTcore/interface/TriggerExpressionData.h"

namespace triggerExpression {

  bool Data::setEvent(const edm::Event& event, const edm::EventSetup& setup) {
    // cache the event number
    m_eventNumber = event.id().event();

    // access L1 objects only if L1 is used
    if (hasL1T()) {
      // cache the L1 GT results objects
      auto const& l1t = edm::get(event, m_l1tResultsToken);
      if (l1t.size() == 0 or l1t.isEmpty(0)) {
        m_l1tResults = nullptr;
        return false;
      }
      if (m_l1tIgnoreMaskAndPrescale)
        m_l1tResults = &l1t.at(0, 0).getAlgoDecisionInitial();
      else
        m_l1tResults = &l1t.at(0, 0).getAlgoDecisionFinal();

      // cache the L1 trigger menu
      unsigned long long l1tCacheID = setup.get<L1TUtmTriggerMenuRcd>().cacheIdentifier();
      if (m_l1tCacheID == l1tCacheID) {
        m_l1tUpdated = false;
      } else {
        m_l1tMenu = &edm::get<L1TUtmTriggerMenu, L1TUtmTriggerMenuRcd>(setup);
        m_l1tCacheID = l1tCacheID;
        m_l1tUpdated = true;
      }
    }

    // access HLT objects only if HLT is used
    if (hasHLT()) {
      // cache the HLT TriggerResults
      m_hltResults = &edm::get(event, m_hltResultsToken);
      if (not m_hltResults)
        return false;

      // access the TriggerNames, and check if it has changed
      m_hltMenu = &event.triggerNames(*m_hltResults);
      if (m_hltMenu->parameterSetID() == m_hltCacheID) {
        m_hltUpdated = false;
      } else {
        m_hltCacheID = m_hltMenu->parameterSetID();
        m_hltUpdated = true;
      }
    }

    return true;
  }

}  // namespace triggerExpression