G4RootMainNtupleManager.cc

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// Author: Ivana Hrivnacova, 04/10/2016  (ivana@ipno.in2p3.fr)
 
#include "G4RootMainNtupleManager.hh"
#include "G4RootFileManager.hh"
#include "G4RootNtupleManager.hh"
#include "G4AnalysisUtilities.hh"
 
#include "tools/wroot/file"
#include "tools/wroot/ntuple"
 
using namespace G4Analysis;
 
//_____________________________________________________________________________
G4RootMainNtupleManager::G4RootMainNtupleManager(
                G4RootNtupleManager* ntupleBuilder,
                std::shared_ptr<G4NtupleBookingManager> bookingManager,
                G4bool rowWise,
                G4int fileNumber,
                const G4AnalysisManagerState& state)
 : G4BaseAnalysisManager(state),
   fNtupleBuilder(ntupleBuilder),
   fBookingManager(std::move(bookingManager)),
   fRowWise(rowWise),
   fFileNumber(fileNumber)
{}
 
//
// protected functions
//
 
//_____________________________________________________________________________
void G4RootMainNtupleManager::CreateNtuple(RootNtupleDescription* ntupleDescription,
                                           G4bool warn)
{
// Create ntuple from booking if file was open
 
  // Get/Create main ntuple file
  auto ntupleFile = fFileManager->CreateNtupleFile(ntupleDescription, fFileNumber);
  if ( ! ntupleFile ) {
    if ( warn ) {
        Warn("Ntuple file must be defined first.\n"
             "Cannot create main ntuple.",
             fkClass, "CreateNtuple");
      }
    return;
  }
 
  // Get ntuple booking
  auto ntupleBooking = ntupleDescription->fNtupleBooking;
 
  Message(kVL4, "create", "main ntuple", ntupleBooking.name());
 
  // Create ntuple
  auto ntuple = new tools::wroot::ntuple(*std::get<2>(*ntupleFile), ntupleBooking, fRowWise);
         // ntuple object is deleted automatically when closing a file
  auto basketSize = fNtupleBuilder->GetBasketSize();
  ntuple->set_basket_size(basketSize);
 
  fNtupleVector.push_back(ntuple);
  fNtupleDescriptionVector.push_back(ntupleDescription);
 
  Message(kVL3, "create", "main ntuple", ntupleBooking.name());
}
 
//_____________________________________________________________________________
G4bool G4RootMainNtupleManager::Merge()
{
  std::size_t counter = 0;
 
  for ( auto ntuple : fNtupleVector ) {
    ntuple->merge_number_of_entries();
 
    // Notify ntuple description that file is not empty
    if ( ntuple->entries() ) {
      auto ntupleDescription = fNtupleDescriptionVector.at(counter);
      ntupleDescription->fHasFill = true;
    }
    ++counter;
  }
 
  return true;
}
 
//_____________________________________________________________________________
G4bool G4RootMainNtupleManager::Reset()
{
  // ntuple object is deleted automatically when closing a file
 
  fNtupleVector.clear();
  fNtupleDescriptionVector.clear();
 
  return true;
}
 
//_____________________________________________________________________________
void G4RootMainNtupleManager::ClearData()
{
  // Reset function clears all data
  Reset();
 
  Message(G4Analysis::kVL2, "clear", "main ntuples");
}
 
//_____________________________________________________________________________
std::shared_ptr<G4RootFile>
G4RootMainNtupleManager::GetNtupleFile(RootNtupleDescription* ntupleDescription) const
{
  auto perThread = false;
  return fFileManager->GetNtupleFile(ntupleDescription, perThread, fFileNumber);
}