// -*- C++ -*-
//
// Package:    TwoVBGenGenFilter
// Class:      TwoVBGenGenFilter
// 
/**\class TwoVBGenGenFilter TwoVBGenGenFilter.cc GeneratorInterface/GenFilters/src/TwoVBGenGenFilter.cc

 Description: select semileptonic double-VB events

 Implementation:
     [Notes on implementation]
*/
//
// Original Author:  Maurizio Pierini, Thiago Tomei
// $Id: TwoVBGenFilter.h,v 1.1 2010/09/07 11:08:57 fabstoec Exp $
//
//


// system include files
#include <memory>

// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/EDFilter.h"

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"

#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"

//
// class declaration
//

class TwoVBGenFilter : public edm::EDFilter {
   public:
      explicit TwoVBGenFilter(const edm::ParameterSet&);
      ~TwoVBGenFilter();

   private:
      virtual void beginJob() ;
      virtual bool filter(edm::Event&, const edm::EventSetup&);
      virtual void endJob() ;
      
      // ----------member data ---------------------------
      edm::InputTag src_;
  bool eejj_, enujj_, nunujj_, mumujj_, munujj_, tautaujj_, taunujj_, gamma_;

      bool isNeutrino(const HepMC::GenParticle*);
      bool isQuark(const HepMC::GenParticle*);
      bool isElectron(const HepMC::GenParticle*);
      bool isMuon(const HepMC::GenParticle*);
      bool isTau(const HepMC::GenParticle*);

};