LArRodIdHash.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#include "TrigT2CaloCommon/LArRodIdHash.h" 
 
#include "eformat/SourceIdentifier.h"
#include "LArIdentifier/LArReadoutModuleService.h"
 
#include <stdexcept>
 
using eformat::helper::SourceIdentifier;
 
 
void LArRodIdHash::initialize( int offset, const std::vector<HWIdentifier>& roms )  {
 
  m_offset = offset;
 
  LArReadoutModuleService larROMService;
  std::vector<ID> rmod;
  rmod.reserve(roms.size());
 
  for(const HWIdentifier& mId : roms) {
    SourceIdentifier sid{static_cast<eformat::SubDetector>(larROMService.subDet(mId)),
                         static_cast<uint8_t>(larROMService.rodFragId(mId))};
    const uint32_t rod_id = sid.code();
    rmod.push_back(rod_id);
  }
 
  size_t n = 0;
  for (ID id : rmod) {
    m_lookup[id] = n;
    m_int2id.push_back(id);
    ++n;
  }
}
 
 
size_t LArRodIdHash::operator() (ID id) const {
 
  const auto it = m_lookup.find(id);
  if(it!=m_lookup.end()) return it->second;
 
  throw std::out_of_range("LArRodIdHash: invalid Rod number" + std::to_string(id));
 
}