JWeightFileScanner.hh

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#ifndef __JAANET__JWEIGHTFILESCANNER__ 
#define __JAANET__JWEIGHTFILESCANNER__ 

#include "JWeightEventHelper.hh"
#include "JWeightMupage.hh"
#include "JSupport/JMultipleFileScanner.hh"
#include "JSupport/JMonteCarloFileSupportkit.hh"
#include "JSupport/JSupport.hh"

class Head;
class Evt;

namespace JAANET {

  using JSUPPORT::JMultipleFileScanner;
  using JSUPPORT::JLimit;

  /**
   * Template file scanner with event weight.
   */
  template<class JFileScanner_t = JMultipleFileScanner<Evt> >
  struct JWeightFileScanner :
    public JFileScanner_t,
    public JWeightEventHelper
  {
    /**
     * Default constructor.
     */
    JWeightFileScanner()
    {}
    

    /**
     * Constructor.
     *
     * \param  input_files       input files
     * \param  weight            event weight
     * \param  limit             limit
     */
    JWeightFileScanner(const JMultipleFileScanner_t& input_files,
                       const JWeightEvent&           weight,
                       const JLimit&                 limit = JLimit())
    {
      this->configure(input_files, weight);
    }

    
    /**
     * Configure.
     *
     * \param  input_files       input files
     * \param  weight            event weight
     * \param  limit             limit
     */
    bool configure(const JMultipleFileScanner_t& input_files,
                   const JWeightEvent&           weight,
                   const JLimit&                 limit = JLimit())
    {
      using namespace JPP;
  
      JFileScanner_t::configure(input_files, limit);

      this->reset(weight.clone());

      return JWeightEventHelper::configure(input_files);
    }
  };
}

#endif