TrigAFPSidHypoMonitoringAlg.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#include "TrigAFPSidHypoMonitoringAlg.h"
 
#include "xAODForward/AFPTrackContainer.h"
#include "xAODForward/AFPTrack.h"
#include "TrigDecisionTool/TrigDecisionTool.h"
#include <cmath>
 
TrigAFPSidHypoMonitoringAlg::TrigAFPSidHypoMonitoringAlg(const std::string& name, ISvcLocator* pSvcLocator) :
  AthMonitorAlgorithm (name, pSvcLocator)
{
}
 
TrigAFPSidHypoMonitoringAlg::~TrigAFPSidHypoMonitoringAlg()
{
}
 
StatusCode TrigAFPSidHypoMonitoringAlg::initialize()
{
  ATH_CHECK(AthMonitorAlgorithm::initialize());
 
  ATH_CHECK(m_AFPtrackKey.initialize());
  ATH_CHECK(m_AFPtrackOffKey.initialize());
  return StatusCode::SUCCESS;
}
 
StatusCode TrigAFPSidHypoMonitoringAlg::finalize()
{
  return StatusCode::SUCCESS;
}
 
StatusCode TrigAFPSidHypoMonitoringAlg::fillHistograms(const EventContext& context) const
{
 
  SG::ReadHandle<xAOD::AFPTrackContainer> tracksAFP(m_AFPtrackKey, context);
 
  SG::ReadHandle<xAOD::AFPTrackContainer> tracksAFPoff(m_AFPtrackOffKey, context);
 
  ATH_MSG_DEBUG("AFP track size online/offline:"<<tracksAFP.get()->size()<<"/"<<tracksAFPoff.get()->size());
 
  auto xDiff = Monitored::Scalar("xDiff",-999.);
  auto yDiff = Monitored::Scalar("yDiff",-999.);
 
  const std::string hName{"AFPCoarse"};
  // Match online track to offline
  for(const auto* track: *tracksAFP){
    float dRmin = 9e9;
    for(const auto* off_track: *tracksAFPoff){
      
      float dx = track->xLocal()-off_track->xLocal();
      float dy = track->yLocal()-off_track->yLocal();
      float dR = std::hypot(dx, dy);
 
      if(dR<dRmin){
    dRmin = dR;
    xDiff = dx;
    yDiff = dy;
      }
    } // End of loop over offline tracks
 
    fill(hName, xDiff, yDiff);
 
  }// End of loop over online tracks
 
  // in future should be split into many smaller methods called from here
  std::vector<std::string> passedAFPChains = {"all"}; // also includes ALL events counter
  for (const auto& chainName: m_chains) {
    if ( getTrigDecisionTool()->isPassed(chainName) ){
      passedAFPChains.emplace_back(chainName);
    }
 
  }
  if ( passedAFPChains.size() > 1) passedAFPChains.emplace_back("AFP");
  auto whichTrigger = Monitored::Collection("TrigCounts", passedAFPChains);
  fill(hName, whichTrigger);
 
  return StatusCode::SUCCESS;
}