PixelClusterContainerCnv_p0.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#include "PixelClusterContainerCnv_p0.h"
 
#include "MsgUtil.h"
 
// Athena
#include "AthenaKernel/errorcheck.h"
#include "InDetIdentifier/PixelID.h"
#include "StoreGate/ReadCondHandle.h"
#include "StoreGate/StoreGateSvc.h"
 
// Gaudi
#include "GaudiKernel/Bootstrap.h"
#include "GaudiKernel/ISvcLocator.h"
#include "GaudiKernel/Service.h"
 
#include <string>
#include <memory>
 
//================================================================
 
PixelClusterContainerCnv_p0::PixelClusterContainerCnv_p0():
  m_pixelDetEleCollKey{"PixelDetectorElementCollection"}
{
}
 
StatusCode PixelClusterContainerCnv_p0::initialize(MsgStream &log ) {
 
   log << MSG::INFO << "PixelClusterContainerCnv::initialize()" << endmsg;
 
   SmartIF<StoreGateSvc> detStore{Gaudi::svcLocator()->service("DetectorStore")};
   CHECK( detStore.isValid() );
 
   CHECK( detStore->retrieve(m_pixId, "PixelID") );
   CHECK( m_pixelDetEleCollKey.initialize() );
   MSG_DEBUG(log,"Converter initialized.");
 
   return StatusCode::SUCCESS;
}
 
 
 
 
InDet::PixelClusterContainer* PixelClusterContainerCnv_p0::createTransient(PixelClusterContainer_p0* persObj, MsgStream& log) {
 
  auto trans = std::make_unique<InDet::PixelClusterContainer>(m_pixId->wafer_hash_max()) ;
  MSG_DEBUG(log,"Read PRD vector, size " << persObj->size());
 
  SG::ReadCondHandle<InDetDD::SiDetectorElementCollection> pixelDetEleHandle(m_pixelDetEleCollKey);
  const InDetDD::SiDetectorElementCollection* elements(*pixelDetEleHandle);
  if (not pixelDetEleHandle.isValid() or elements==nullptr) {
    log << MSG::FATAL << m_pixelDetEleCollKey.fullKey() << " is not available." << endmsg;
    return trans.release();
  }
 
  for (InDet::PixelClusterCollection* dcColl : *persObj) {
      // Add detElem to each drift circle
      IdentifierHash collHash = dcColl->identifyHash();
      const InDetDD::SiDetectorElement * de = elements->getDetectorElement(collHash);
      MSG_DEBUG(log,"Set PixelCluster detector element to "<< de);
 
      InDet::PixelClusterCollection::iterator itColl   = dcColl->begin();
      InDet::PixelClusterCollection::iterator lastColl = dcColl->end();
      for (int num = 0; itColl != lastColl; ++itColl, ++num) {
     MSG_DEBUG(log,"PRD " << num);
         (*itColl)->m_detEl = de;
      }
      //trans cannot be nullptr at this point
      StatusCode sc= trans->addCollection(dcColl, collHash);
      if (sc.isSuccess()){
     MSG_VERBOSE(log,"PixelClusterContainer successfully added to Container !");
      } else {
         log << MSG::ERROR << "Failed to add PixelClusterContainer to container" << endmsg;
         return nullptr;
      }
   }
  return trans.release();
}