RALExperimentalHall.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
// RALExperimentalHall
// Sep 5 JFB
 
// Fetch parameters from a NOVA database structure.
 
#include "LArGeoRAL/RALExperimentalHall.h"
#include "LArGeoCode/VDetectorParameters.h"
 
// Athena Service classes
#include "GaudiKernel/Bootstrap.h"
#include "GaudiKernel/ISvcLocator.h"
#include "StoreGate/StoreGateSvc.h"
 
#include "CLHEP/Units/PhysicalConstants.h"
 
#include "RDBAccessSvc/IRDBAccessSvc.h"
#include "RDBAccessSvc/IRDBRecord.h"
#include "RDBAccessSvc/IRDBRecordset.h"
#include "GeoModelInterfaces/IGeoModelSvc.h"
#include "GeoModelInterfaces/IGeoDbTagSvc.h"
 
#include <cstdlib>
#include <iostream>
#include <stdexcept>
#include <string>
 
class LArGeo::RALExperimentalHall::Clockwork {
 
public:
 
  Clockwork()= default;
  ~Clockwork()= default;
  
  IRDBRecordset_ptr atlasMother;
 
};
 
 
LArGeo::RALExperimentalHall::RALExperimentalHall():
  m_c(new Clockwork())
{
  // First, fetch the Athena services.
  ISvcLocator* svcLocator = Gaudi::svcLocator();
 
  SmartIF<IGeoDbTagSvc> geoDbTagSvc{svcLocator->service("GeoDbTagSvc")};
  if(!geoDbTagSvc.isValid()) {
    throw std::runtime_error ("Cannot locate GeoDBTagSvc");
  }
  
  SmartIF<IRDBAccessSvc> pAccessSvc{svcLocator->service(geoDbTagSvc->getParamSvcName())};
  if(!pAccessSvc.isValid()) {
    throw std::runtime_error ("Cannot locate " + geoDbTagSvc->getParamSvcName());
  }
 
  std::string AtlasVersion;
 
  if(geoDbTagSvc->getSqliteReader()==nullptr) {
    // The geometry DB is used
    SmartIF<IGeoModelSvc> geoModel{svcLocator->service("GeoModelSvc")};
    if(!geoModel.isValid()) {
      throw std::runtime_error ("Cannot locate GeoModelSvc");
    }
  
    AtlasVersion = geoModel->atlasVersion();
  }
 
  m_c->atlasMother             = pAccessSvc->getRecordsetPtr("AtlasMother",AtlasVersion, "ATLAS"); 
}
 
 
LArGeo::RALExperimentalHall::~RALExperimentalHall()
{
  delete m_c;
}
 
 
double LArGeo::RALExperimentalHall::GetValue(std::string_view a_name,
                                             const int /*a0*/,
                                             const int /*a1*/,
                                             const int /*a2*/,
                                             const int /*a3*/,
                                             const int /*a4*/ ) const
{
  
  if ( a_name == "LArExpHallOutOfTimeCut"     ) return 2.5*CLHEP::ns;
  if ( a_name == "LArExpHallInnerRadius"      ) return (*m_c->atlasMother)[1]->getDouble("RMIN")*CLHEP::cm;
  if ( a_name == "LArExpHallOuterRadius"      ) return (*m_c->atlasMother)[1]->getDouble("RMAX")*CLHEP::cm;
  if ( a_name == "LArExpHallZmax"             ) return (*m_c->atlasMother)[1]->getDouble("ZMAX")*CLHEP::cm;
 
  // We didn't find a match.
  std::string errMessage = "RALExperimentalHall::GetValue: could not find a match for the key '";
  errMessage.append( a_name);
  std::cerr << errMessage << std::endl;
  throw std::runtime_error (errMessage.c_str());
 
  // Unreached
}