CaloClusterRetriever.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#include "CaloClusterRetriever.h"
 
#include "AthenaKernel/Units.h"
 
using Athena::Units::GeV;
 
namespace JiveXML {
 
  StatusCode CaloClusterRetriever::initialize()
  {
 
    ATH_MSG_DEBUG("Initialising Tool");
 
    ATH_CHECK(m_sgKeyFavourite.initialize());
 
    return StatusCode::SUCCESS;
  }

  StatusCode CaloClusterRetriever::retrieve(ToolHandle<IFormatTool> &FormatTool) {
    
    ATH_MSG_DEBUG( "in retrieveAll()"  );
    
    //obtain the default collection first
    ATH_MSG_DEBUG( "Trying to retrieve " << dataTypeName() << " (" << m_sgKeyFavourite.key() << ")"  );
 
    SG::ReadHandle<xAOD::CaloClusterContainer> ccc_primary(m_sgKeyFavourite);
    if (ccc_primary.isValid()) {
      DataMap data = getData(&(*ccc_primary));
      if (FormatTool->AddToEvent(dataTypeName(), m_sgKeyFavourite.key() + "_ESD", &data).isFailure()) {
        ATH_MSG_WARNING("Failed to retrieve favourite Collection " << m_sgKeyFavourite.key() );
      }
      else {
        ATH_MSG_DEBUG(dataTypeName() << " (" << m_sgKeyFavourite.key() << ") CaloCluster retrieved");
      }
    }
    else{
      ATH_MSG_WARNING("Favourite Collection " << m_sgKeyFavourite.key() << " not found in SG ");
    }
 
    if ( m_otherKeys.empty() ) {
      //obtain all other collections from StoreGate
      std::vector<std::string> allkeys;
      evtStore()->keys(static_cast<CLID>( ClassID_traits<xAOD::CaloClusterContainer>::ID() ), allkeys);
      for (const auto& key : allkeys) {
        if (key!=m_sgKeyFavourite.key()) {
          ATH_MSG_DEBUG( "Trying to retrieve all " << dataTypeName() << " (" << key << ")"  );
          SG::ReadHandle<xAOD::CaloClusterContainer> containerRH(key);
          if (!containerRH.isValid()) {
            ATH_MSG_DEBUG( "Unable to retrieve CaloCluster collection " << key );
          } else {
            std::string::size_type position = key.find("HLTAutoKey",0);
            if ( m_doWriteHLT ){ position = 99; } // override SG key find
            if ( position != 0 ){  // SG key doesn't contain HLTAutoKey
              DataMap data = getData(&*containerRH);
              if ( FormatTool->AddToEvent(dataTypeName(), containerRH.key()+"_ESD", &data).isFailure()){
                 ATH_MSG_WARNING( "Collection " << containerRH.key() << " not found in SG "  );
              }else{
                 ATH_MSG_DEBUG( dataTypeName() << " (" << containerRH.key() << ") CaloCluster retrieved"  );
              }
            }
          }
        }
      }
    }else {
      //obtain all collections with keys provided by user: m_otherKeys
      for (const auto& key : m_otherKeys) {
        if (key!=m_sgKeyFavourite.key()) {
          ATH_MSG_DEBUG( "Trying to retrieve selected " << dataTypeName() << " (" << key << ")"  );
          SG::ReadHandle<xAOD::CaloClusterContainer> containerRH(key);
          if (!containerRH.isValid()) {
            ATH_MSG_DEBUG( "Unable to retrieve CaloCluster collection " << key );
          } else {
            DataMap data = getData(&*containerRH);
            if ( FormatTool->AddToEvent(dataTypeName(), containerRH.key()+"_ESD", &data).isFailure()){
               ATH_MSG_WARNING( "Collection " << containerRH.key() << " not found in SG "  );
            }else{
               ATH_MSG_DEBUG( dataTypeName() << " (" << containerRH.key() << ") retrieved"  );
            }
          }
        }
      }
    }
    //All collections retrieved okay
    return StatusCode::SUCCESS;
  }
 

  const DataMap CaloClusterRetriever::getData(const xAOD::CaloClusterContainer* ccc) {
    
    ATH_MSG_DEBUG( "getData()"  );
 
    DataMap DataMap;
 
    DataVect phi; phi.reserve(ccc->size());
    DataVect eta; eta.reserve(ccc->size());
    DataVect et; et.reserve(ccc->size());
    DataVect idVec; idVec.reserve(ccc->size());
    DataVect numCellsVec; numCellsVec.reserve(ccc->size());
    DataVect cells; cells.reserve( ccc->size() );
 
    int noClu = ccc->size();
    int noCells = 0;
    
    int id = 0;
    for (const auto cluster : *ccc) {
      phi.emplace_back(cluster->phi());
      eta.emplace_back(cluster->eta());
      et.emplace_back(cluster->et()*(1./GeV));
      idVec.emplace_back( ++id );
 
      int numCells = cluster->size();
      numCellsVec.emplace_back( numCells );
      noCells += numCells;
 
      for (const auto cell : *cluster) {
        cells.push_back(cell->ID().get_compact());
      }
    }
 
    std::string tagCells;
    if(noClu){
      tagCells = "cells multiple=\"" +DataType(noCells/(noClu*1.0)).toString()+"\"";
    }else{
      tagCells = "cells multiple=\"1.0\"";
    }
 
    // Start with mandatory entries
    const auto nEntries = 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(numCellsVec);
    DataMap["id"] = std::move(idVec);
 
    //Be verbose
    ATH_MSG_DEBUG( dataTypeName() << " , collection: " << dataTypeName()
                   << " retrieved with " << nEntries << " entries" );
 
    //All collections retrieved okay
    return DataMap;
 
  } // retrieve
 
  //--------------------------------------------------------------------------
  
} // JiveXML namespace