EgammaAnalysisAlgorithms/EgammaAnalysisAlgorithms/CopyHelpers.h

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/

 
 
 
#ifndef EGAMMA_ANALYSIS_ALGORITHMS__COPY_HELPERS_H
#define EGAMMA_ANALYSIS_ALGORITHMS__COPY_HELPERS_H
 
#include <SystematicsHandles/CopyHelpers.h>
 
#include <CxxUtils/checker_macros.h>
#include <xAODEgamma/EgammaContainer.h>
 
namespace CP
{
  namespace detail
  {
    template<>
    struct ShallowCopy<xAOD::EgammaContainer>
    {
    public:
      typedef std::decay<decltype(
      *(std::declval<EL::AnaAlgorithm>().evtStore()))>::type StoreType;
 
      static StatusCode
      getCopy (MsgStream& msgStream, StoreType& store,
               xAOD::EgammaContainer*& object,
               const xAOD::EgammaContainer *inputObject,
               const std::string& outputName, const std::string& auxName)
      {
        // Set up a lambda for providing a msg(...) function.
        // Suppress thread-checker warning because this provides just a wrapper to MsgStream.
        const auto msg = [&] ATLAS_NOT_THREAD_SAFE (MSG::Level lvl) -> MsgStream& {
          msgStream << lvl;
          return msgStream;
        };
 
        xAOD::IParticleContainer *subobject = nullptr;
        if (!ShallowCopy<xAOD::IParticleContainer>::getCopy (msgStream, store, subobject, inputObject, outputName, auxName).isSuccess())
          return StatusCode::FAILURE;
        if (!(object = dynamic_cast<xAOD::EgammaContainer*>(subobject)))
        {
          ANA_MSG_ERROR ("copy of EgammaContainer is not an EgammaContainer");
          ANA_MSG_ERROR ("check logic in CopyHelpers");
          return StatusCode::FAILURE;
        }
        return StatusCode::SUCCESS;
      }
    };
  }
}
 
#endif