TRT_RIO_Maker.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/

 
#include "InDetPrepRawDataFormation/TRT_RIO_Maker.h"
#include "InDetIdentifier/TRT_ID.h"
//
#include "GaudiKernel/ISvcLocator.h"
 
 
 
namespace InDet {
  
  // Constructior
  TRT_RIO_Maker::TRT_RIO_Maker
  (const std::string& name,ISvcLocator* pSvcLocator) : 
  AthReentrantAlgorithm(name,pSvcLocator),
  m_pTRTHelper(nullptr){}
  
  // Initialisation
  StatusCode TRT_RIO_Maker::initialize() {
    // Get TRT_DriftCircle tool
    ATH_CHECK(m_driftcircle_tool.retrieve());
    ATH_CHECK(detStore()->retrieve(m_pTRTHelper,"TRT_ID"));
    if (m_roiSeeded.value()) {
      ATH_CHECK(m_roiCollectionKey.initialize());
      ATH_CHECK(m_regionSelector.retrieve());
    }else{
      ATH_CHECK(m_roiCollectionKey.initialize(false));
      m_regionSelector.disable();
    }
 
    ATH_CHECK( m_rdoContainerKey.initialize() );
    ATH_CHECK( m_rioContainerKey.initialize() );
    ATH_CHECK( m_rioContainerCacheKey.initialize(!m_rioContainerCacheKey.key().empty()) );
    msg(MSG::DEBUG) << "getTRTBadChannels on or off (1/0)" <<m_trtBadChannels<< endmsg;
    return StatusCode::SUCCESS;
  }
  
  //no-op destructor
  TRT_RIO_Maker::~TRT_RIO_Maker() = default;
  
  // Execute
  StatusCode TRT_RIO_Maker::execute(const EventContext& ctx) const {
    // TRT_DriftCircle container registration
    SG::WriteHandle<InDet::TRT_DriftCircleContainer> rioContainer(m_rioContainerKey, ctx);
    if(m_rioContainerCacheKey.key().empty()){
      rioContainer = std::make_unique<InDet::TRT_DriftCircleContainer>(m_pTRTHelper->straw_layer_hash_max(),EventContainers::Mode::OfflineFast);
    }else{
      SG::UpdateHandle<TRT_DriftCircleContainerCache> clusterContainercache(m_rioContainerCacheKey, ctx);
      ATH_CHECK( rioContainer.record (std::make_unique<TRT_DriftCircleContainer>(clusterContainercache.ptr()) ));
    }
 
    ATH_CHECK(rioContainer.isValid());
    ATH_MSG_DEBUG( "Container "<< rioContainer.name() << " initialised" );
    SG::ReadHandle<TRT_RDO_Container> rdoContainer(m_rdoContainerKey, ctx);
    ATH_CHECK(rdoContainer.isValid());
 
    const bool hasExternalCache = rdoContainer->hasExternalCache();
    std::unique_ptr<DataPool<TRT_DriftCircle>> dataItemsPool = nullptr;
    if (!hasExternalCache) {
      dataItemsPool = std::make_unique<DataPool<TRT_DriftCircle>>(ctx);
      dataItemsPool->reserve(100000);  // Some large default size
    }else if(m_useDataPoolWithCache){
      dataItemsPool = std::make_unique<DataPool<TRT_DriftCircle>>(ctx);
      //Default size for now 1024 let it expand on its own
    }
 
    // Get TRT_RDO and produce TRT_RIO collections
    if (!m_roiSeeded) {//Full-scan mode
 
      for(const auto *const rdoCollections : *rdoContainer) {
        const InDetRawDataCollection<TRT_RDORawData>* currentCollection(rdoCollections);
        InDet::TRT_DriftCircleContainer::IDC_WriteHandle lock = rioContainer->getWriteHandle(currentCollection->identifyHash());
        if (lock.OnlineAndPresentInAnotherView()) {
          continue;
        }
        std::unique_ptr<TRT_DriftCircleCollection> p_rio(
            m_driftcircle_tool->convert(m_mode_rio_production,
                                        currentCollection, ctx, dataItemsPool.get(),
                                        m_trtBadChannels));
        if (p_rio && !p_rio->empty()) {
          ATH_CHECK(lock.addOrDelete(std::move(p_rio)));
        }
     }
    }else{
      SG::ReadHandle<TrigRoiDescriptorCollection> roiCollection(m_roiCollectionKey, ctx);
      ATH_CHECK(roiCollection.isValid());
      std::vector<IdentifierHash> listOfTRTIds;
      for(const TrigRoiDescriptor* roi : *roiCollection){
         
         listOfTRTIds.clear(); //Prevents needless memory reallocations
         m_regionSelector->lookup(ctx)->HashIDList( *roi, listOfTRTIds);
         for(auto &id : listOfTRTIds){
            const InDetRawDataCollection<TRT_RDORawData>* RDO_Collection (rdoContainer->indexFindPtr(id));
            if (!RDO_Collection) continue;
            InDet::TRT_DriftCircleContainer::IDC_WriteHandle lock = rioContainer->getWriteHandle(id);
            if( lock.OnlineAndPresentInAnotherView() ) {
              continue;
            }
 
            // Use one of the specific clustering AlgTools to make clusters
            std::unique_ptr<TRT_DriftCircleCollection> p_rio(
                m_driftcircle_tool->convert(m_mode_rio_production,
                                            RDO_Collection, ctx, dataItemsPool.get(),
                                            m_trtBadChannels));
            if (p_rio && !p_rio->empty()) {
              ATH_CHECK(lock.addOrDelete(std::move(p_rio)));
            }
         }
      }
    }
    ATH_MSG_DEBUG("rioContainer->numberOfCollections() " <<  rioContainer->numberOfCollections());
    ATH_CHECK(rioContainer.setConst());
    return StatusCode::SUCCESS;
  }
  
  // Finalize
  StatusCode TRT_RIO_Maker::finalize() {
    return StatusCode::SUCCESS;
  }
}