TRT_DriftCircleContainerCnv_p0.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#include "TRT_DriftCircleContainerCnv_p0.h"
#include "TRT_ReadoutGeometry/TRT_BaseElement.h"
#include "InDetIdentifier/TRT_ID.h"
#include "StoreGate/ReadCondHandle.h"
#include "MsgUtil.h"
#include "AthenaKernel/errorcheck.h"
 
// Gaudi
#include "GaudiKernel/ISvcLocator.h"
#include "GaudiKernel/Bootstrap.h"
#include "GaudiKernel/StatusCode.h"
#include "GaudiKernel/Service.h"
#include "GaudiKernel/MsgStream.h"
 
#include <string>
 
//================================================================
 
 
StatusCode TRT_DriftCircleContainerCnv_p0::initialize(MsgStream &log ) {
 
   log << MSG::INFO << "TRT_DriftCircleContainerCnv::initialize()" << endmsg;
 
   SmartIF<StoreGateSvc> detStore{Gaudi::svcLocator()->service("DetectorStore")};
   CHECK( detStore.isValid() );
 
   CHECK( detStore->retrieve(m_trtId, "TRT_ID") );
   // Initialize readCondHandle key                                                  
   CHECK(m_trtDetEleContKey.initialize());
   MSG_DEBUG(log,"Converter initialized.");
 
   return StatusCode::SUCCESS;
}
 
 
 
 
InDet::TRT_DriftCircleContainer* TRT_DriftCircleContainerCnv_p0::createTransient(TRT_DriftCircleContainer_p0* persObj, MsgStream& log) {
 
  auto trans = std::make_unique<InDet::TRT_DriftCircleContainer>(m_trtId->straw_layer_hash_max());
  MSG_DEBUG(log,"Read PRD vector, size " << persObj->size());
 
  SG::ReadCondHandle<InDetDD::TRT_DetElementContainer> trtDetEleHandle(m_trtDetEleContKey);
  const InDetDD::TRT_DetElementCollection* elements(trtDetEleHandle->getElements());
  if (not trtDetEleHandle.isValid() or elements==nullptr) {
    log << MSG::FATAL << m_trtDetEleContKey.fullKey() << " is not available." << endmsg;
    return trans.release();
  }
  
  for (InDet::TRT_DriftCircleCollection* dcColl : *persObj) {
      // Add detElem to each drift circle
      IdentifierHash collHash = dcColl->identifyHash();
      const InDetDD::TRT_BaseElement * de = elements->getDetectorElement(collHash);
      MSG_DEBUG(log,"Set TRT_DriftCircle detector element to "<< de);
 
      InDet::TRT_DriftCircleCollection::iterator itColl   = dcColl->begin();
      InDet::TRT_DriftCircleCollection::iterator lastColl = dcColl->end();
      for (int num = 0; itColl != lastColl; ++itColl, ++num) {
          MSG_DEBUG(log,"PRD " << num);
         (*itColl)->m_detEl = de;
      }
 
      StatusCode sc =  trans->addCollection(dcColl, collHash);
      if (sc.isSuccess()){
     MSG_VERBOSE(log,"TRT_DriftCircleContainer successfully added to Container !");
      } else {
         log << MSG::ERROR << "Failed to add TRT_DriftCircleContainer to container" << endmsg;
         return nullptr;
      }
   }
  return(trans.release());
}