RootEventFileReader.hh

//
// This file is part of MARLEY (Model of Argon Reaction Low Energy Yields)
//
// MARLEY is free software: you can redistribute it and/or modify it under the
// terms of version 3 of the GNU General Public License as published by the
// Free Software Foundation.
//
// For the full text of the license please see COPYING or
// visit http://opensource.org/licenses/GPL-3.0
//
// Please respect the MCnet academic usage guidelines. See GUIDELINES
// or visit https://www.montecarlonet.org/GUIDELINES for details.
 
#pragma once
#include <memory>
#include <string>
 
#include "marley/Event.hh"
#include "marley/Error.hh"
#include "marley/EventFileReader.hh"
 
#include "TFile.h"
#include "TTree.h"
 
namespace marley {
 
  class RootEventFileReader : public EventFileReader {
 
    public:
 
      RootEventFileReader( const std::string& file_name );
 
      virtual ~RootEventFileReader() = default;
 
      virtual bool next_event(marley::Event& ev) override;
 
      virtual operator bool() const override;
 
    protected:
 
      std::unique_ptr<TFile> tfile_;
 
      // @brief Pointer to the TTree containing the MARLEY events to be loaded
      TTree* ttree_;
 
      std::unique_ptr<marley::Event> event_;
 
      marley::Event* event_ptr_;
 
      long event_num_ = -1;
 
      virtual bool deduce_file_format() override;
      virtual void initialize() override;
  };
 
}