xAODCaloClusterRetriever.cxx

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#include "xAODJiveXML/xAODCaloClusterRetriever.h"
#include "CaloGeoHelpers/CaloSampling.h"
#include "AthenaKernel/Units.h"
 
using Athena::Units::GeV;
 
namespace JiveXML {

  xAODCaloClusterRetriever::xAODCaloClusterRetriever(const std::string& type,const std::string& name,const IInterface* parent):
    AthAlgTool(type,name,parent)
  {}
 
 
   StatusCode xAODCaloClusterRetriever::initialize(){
    ATH_CHECK(m_keys.initialize());
    return StatusCode::SUCCESS;
  }
 
  
  StatusCode xAODCaloClusterRetriever::retrieve(ToolHandle<IFormatTool> &FormatTool) {
 
    ATH_MSG_DEBUG("In retrieve()");
 
    // Loop through the keys and retrieve the corresponding data
    for (const auto& key : m_keys) {
      SG::ReadHandle<xAOD::CaloClusterContainer> cont(key);
      if (cont.isValid()) {
    DataMap data = getData(&(*cont));
    if (FormatTool->AddToEvent(dataTypeName(), key.key() + "_xAOD", &data).isFailure()) {
      ATH_MSG_WARNING("Failed to add collection " << key.key());
    } else {
      ATH_MSG_DEBUG(" (" << key.key() << ") retrieved");
    }
      } else {
    ATH_MSG_WARNING("Collection " << key.key() << " not found in SG");
      }
    }
 
    return StatusCode::SUCCESS;
  }
 

  const DataMap xAODCaloClusterRetriever::getData(const xAOD::CaloClusterContainer* ccc) {
 
    ATH_MSG_DEBUG("in getData()");
 
    DataMap DataMap;
 
    DataVect phi; phi.reserve(ccc->size());
    DataVect eta; eta.reserve(ccc->size());
    DataVect et; et.reserve(ccc->size());
    DataVect cells; cells.reserve(ccc->size());
    DataVect numCells; numCells.reserve(ccc->size());
    DataVect idVec; idVec.reserve(ccc->size());
    DataVect emfracVec; emfracVec.reserve(ccc->size());
    DataVect labelVec; labelVec.reserve(ccc->size());
 
    std::string label="";
    int id = 0;
    int s = 0;
    float eInSample = 0.;
    float eInSampleFull = 0.;
    float emfrac = 0.;
    float rawemfrac = 0.;
 
    // cells n/a in AOD, but keep this for compatibility
    // with 'full' clusters in AtlantisJava
    std::string tagCells;
    tagCells = "cells multiple=\"1.0\"";
 
    xAOD::CaloClusterContainer::const_iterator itr = ccc->begin();
    for (; itr != ccc->end(); ++itr) {
 
      // sum over samplings to get EMfraction:
      // full sum:
      for (s=0;s<CaloSampling::Unknown; s++){
    eInSampleFull += (*itr)->eSample(CaloSampling::CaloSample(s));
      }
      // Now only EMB1-3, EME1-3 and FCAL1:
      eInSample += (*itr)->eSample(CaloSampling::EMB1);
      eInSample += (*itr)->eSample(CaloSampling::EMB2);
      eInSample += (*itr)->eSample(CaloSampling::EMB3);
      eInSample += (*itr)->eSample(CaloSampling::EME1);
      eInSample += (*itr)->eSample(CaloSampling::EME2);
      eInSample += (*itr)->eSample(CaloSampling::EME3);
      eInSample += (*itr)->eSample(CaloSampling::FCAL1);
 
      emfrac  = eInSample/eInSampleFull;
      rawemfrac = emfrac;
      // sanity cut: emfrac should be within [0,1]
      if ( emfrac > 1.0 ) emfrac = 1.;
      if ( emfrac < 0.0 ) emfrac = 0.;
      emfracVec.emplace_back(  DataType(emfrac).toString() );
 
      if ( DataType( eInSample ).toString() != "0." ){
    label = "AllMeV_SumEMSampl=" + DataType( eInSample ).toString() +
      "_SumAllSampl=" + DataType( eInSampleFull ).toString() +
      "_calcEMFrac=" + DataType( rawemfrac ).toString()+
      "_outEMFrac=" + DataType( emfrac ).toString();
      }else{ label = "n_a"; }
      eInSample = 0.;
      eInSampleFull = 0.;
 
      labelVec.emplace_back( label );
      ATH_MSG_VERBOSE("label is " << label);
 
      // now the standard variables
      // getBasicEnergy n/a in xAOD !
 
      phi.emplace_back(DataType((*itr)->phi()));
      eta.emplace_back(DataType((*itr)->eta()));
      et.emplace_back(DataType((*itr)->et()/GeV));
      numCells.emplace_back(DataType( "0" ));
      cells.emplace_back(DataType( "0" ));
      idVec.emplace_back(DataType( ++id ));
 
      ATH_MSG_VERBOSE( dataTypeName() << " cluster #" << id
               << " ,e=" <<  (*itr)->e()/GeV  << ", et="
               << (*itr)->et()/GeV << ", eta=" << (*itr)->eta()
               << ", phi=" << (*itr)->phi());
    }
    // Start with mandatory entries
    const auto n = phi.size();
    DataMap["phi"] = std::move(phi);
    DataMap["eta"] = std::move(eta);
    DataMap["et"] = std::move(et);
    DataMap[tagCells] = std::move(cells);
    DataMap["numCells"] = std::move(numCells);
    DataMap["id"] = std::move(idVec);
    DataMap["emfrac"] = std::move(emfracVec); // not in Atlantis yet ! Could be used in legoplot
    DataMap["label"] = std::move(labelVec); // not in Atlantis yet !
 
    ATH_MSG_DEBUG(dataTypeName() << " (AOD, no cells), collection: " << dataTypeName()
          << " retrieved with " << n << " entries");
    return DataMap;
  }
 
 
} // JiveXML namespace