G4RootMainNtupleManager.cc

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// Author: Ivana Hrivnacova, 04/10/2016  ([email protected])
 
#include "G4RootMainNtupleManager.hh"
#include "G4RootFileManager.hh"
#include "G4RootNtupleManager.hh"
#include "G4AnalysisUtilities.hh"
 
#include "tools/wroot/file"
#include "tools/wroot/ntuple"
 
//_____________________________________________________________________________
G4RootMainNtupleManager::G4RootMainNtupleManager(
                G4RootNtupleManager* ntupleBuilder,
                G4NtupleBookingManager* bookingManager,
                G4bool rowWise,
                G4int fileNumber,
                const G4AnalysisManagerState& state)
 : G4BaseAnalysisManager(state),
   fNtupleBuilder(ntupleBuilder),
   fBookingManager(bookingManager),
   fFileManager(nullptr),
   fRowWise(rowWise),
   fFileNumber(fileNumber),
   fNtupleVector(),
   fNtupleDescriptionVector()
{}
 
//_____________________________________________________________________________
G4RootMainNtupleManager::~G4RootMainNtupleManager()
{
  // ntuple objects are deleted automatically when closing a file 
}
 
//
// 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 ) {
      G4ExceptionDescription description;
      description 
        << "Ntuple file must be defined first."  << G4endl 
        << "Cannot create main ntuple.";
        G4Exception("G4RootMainAnalysisManager::CreateNtuple",
                  "Analysis_W002", JustWarning, description);
      }
    return;
  }
 
  // Get ntuple booking
  auto ntupleBooking = ntupleDescription->fNtupleBooking;
 
#ifdef G4VERBOSE
  if ( fState.GetVerboseL4() ) 
    fState.GetVerboseL4()
      ->Message("create", "main ntuple", ntupleBooking.name());
#endif
 
  // 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);
 
#ifdef G4VERBOSE
  if ( fState.GetVerboseL3() ) 
    fState.GetVerboseL3()
      ->Message("create", "main ntuple", ntupleBooking.name());
#endif
}
 
//_____________________________________________________________________________
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(G4bool deleteNtuple)
{
  for ( auto ntuple : fNtupleVector ) {
    if ( deleteNtuple ) {
      delete ntuple;
    }  
  }
 
  fNtupleVector.clear(); 
  fNtupleDescriptionVector.clear(); 
  
  return true;
}
 
//_____________________________________________________________________________
std::shared_ptr<G4RootFile> 
G4RootMainNtupleManager::GetNtupleFile(RootNtupleDescription* ntupleDescription) const
{ 
  auto perThread = false;
  return fFileManager->GetNtupleFile(ntupleDescription, perThread, fFileNumber);
}