MissingETAssociationHelper.cxx

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#include "xAODMissingET/MissingETAssociationHelper.h"
#include "xAODMissingET/versions/MissingETAssociation_v1.h"
#include "xAODMissingET/versions/MissingETAssociationMap_v1.h"
#include "xAODMissingET/versions/MissingETCompositionBase.h"
#include <stdexcept>
 
using namespace xAOD;

// Constructors and destructor //
 
MissingETAssociationHelper::MissingETAssociationHelper()
  : m_map(nullptr)
{  }
 
MissingETAssociationHelper::MissingETAssociationHelper(const MissingETAssociationMap_v1* map)
  : m_map(map)
{  }
 
MissingETAssociationHelper::~MissingETAssociationHelper()
{  }
 
void MissingETAssociationHelper::setObjSelectionFlag(const MissingETAssociation_v1* assoc, size_t objIdx, bool status)
{
  if(!assoc) throw std::runtime_error("MissingETAssociationHelper::setObjSelectionFlag received a null pointer");
  size_t index = assoc->index();
  if(index >= m_useObjectFlags.size()) m_useObjectFlags.resize(index+1, 0);
  if(status) m_useObjectFlags.at(index) |= (1<<objIdx);
  else m_useObjectFlags.at(index) &= ~(1<<objIdx);
}
 
void MissingETAssociationHelper::setObjSelectionFlag(const MissingETAssociation_v1* assoc, const IParticle* pPart, bool status)
{
  if(!assoc) throw std::runtime_error("MissingETAssociationHelper::setObjSelectionFlag received a null pointer");
  this->setObjSelectionFlag(assoc,assoc->findIndex(pPart),status);
}
 
bool MissingETAssociationHelper::objSelected(const MissingETAssociation_v1* assoc, size_t objIdx) const
{
  if(!assoc) throw std::runtime_error("MissingETAssociationHelper::objSelected received a null pointer");
  size_t index = assoc->index();
  if(index >= m_useObjectFlags.size()) return false; // No flag for this association has been set to 1 yet
  if (objIdx >= sizeof(MissingETBase::Types::bitmask_t)*CHAR_BIT) return false;
  return bool(m_useObjectFlags.at(index) & (static_cast<MissingETBase::Types::bitmask_t>(1)<<objIdx));
}
 
bool MissingETAssociationHelper::objSelected(const MissingETAssociation_v1* assoc, const IParticle* pPart) const
{
  if(!assoc) throw std::runtime_error("MissingETAssociationHelper::objSelected received a null pointer");
  return this->objSelected(assoc, assoc->findIndex(pPart));
}
 
MissingETBase::Types::bitmask_t MissingETAssociationHelper::getObjSelectionFlags(const MissingETAssociation_v1* assoc) const
{
  if(!assoc) throw std::runtime_error("MissingETAssociationHelper::getObjSelectionFlags received a null pointer");
  if(assoc->index() >= m_useObjectFlags.size()) return 0; // No flag for this association has been set to 1 yet
  return m_useObjectFlags.at(assoc->index());
}