JetCollection.h

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/*
  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef JETEVENT_JETCOLLECTION_H
#define JETEVENT_JETCOLLECTION_H
//********************************************************************
//NAME:     JetCollection.h
//********************************************************************
 
// INCLUDE HEADER FILES:
 
#include "AthContainers/DataVector.h"
#include "AthLinks/DataLink.h"
#include "AthenaKernel/CLASS_DEF.h"
#include "JetEvent/Jet.h"
#include "JetEvent/JetKeyDescriptor.h"
#include "JetEvent/JetMomentMap.h"
 
#include "NavFourMom/IParticleContainer.h"
// Needed for constructing the mirror container hierarchy
// This tells StoreGate that DV<Jet> derives from DV<IParticle>
DATAVECTOR_BASE( Jet, IParticle );
 
namespace fastjet {
  class ClusterSequence ;
}
 
class JetCollection : public DataVector<Jet>
{
 public:
 
  // JetCollection types ---------------------
  typedef DataVector<Jet>::iterator iterator;  
  enum OrderedVar { ByEtDown     =  0,
                    ByEtUp       =  1,
            ByPtDown     =  2,
            ByPtUp       =  3,
                    ByEDown      =  4,
                    ByEUp        =  5,
                    ByEtaUp      =  6,
            ByEtaDown    =  7,
            ByAbsEtaUp   =  8,
            ByAbsEtaDown =  9,
            ByPhiDown    = 10,
            ByPhiUp      = 11,
            InEtaPhiDown = 12,
            InEtaPhiUp   = 13,
            Random       = 14 };
  // --------------------------------------
 
  // constructor 
  JetCollection(SG::OwnershipPolicy own = SG::OWN_ELEMENTS);
 
 
 
  virtual ~JetCollection() ;
  //  void print();
    
   
  // make ByEtDown the default
  bool isOrdered(JetCollection::OrderedVar ordering = JetCollection::ByEtDown ) const
    { return ordering == m_ordered; };
  
  void setOrdered(JetCollection::OrderedVar ordered )
    { m_ordered = ordered; return; };
 
  JetCollection::OrderedVar ordered() const
    { return m_ordered; };
 
 
  // we redefine the insertion mechanisms to be sure to capture the jet moments
  // associated to the inserted jets and assign an id within this collection
  void push_back(Jet* j);
  
  iterator insert(iterator position, Jet* j);
 
  template <class InputIterator>
  void insert(iterator position, InputIterator first, InputIterator last);
 
  // cppcheck-suppress duplInheritedMember
  void clear();
  // cppcheck-suppress duplInheritedMember
  void clear(SG::OwnershipPolicy ownPolicy);
 
 
 private:
  
  OrderedVar m_ordered;
 
 public:
  
  DataLink<JetKeyDescriptor>  m_keyStore;
 
  void setAuthor(const std::string& author);
  std::string author() const;
 
  const JetMomentMap * getMomentMap() const;
  std::string getMomentMapName() const;
 
  JetKeyDescriptorInstance * keyDesc() const ;
 
  protected:
  friend class JetCollectionCnv_p6;
 
#if !defined(__REFLEX__) && !defined(__CLING__)
  mutable DataLink<JetMomentMap>      m_momentMapLink;
#endif
  

  size_t m_jetAuthor;
 
 
 
  size_t getNextId();
  size_t m_nextId;
 
  
  void acquireJet(Jet *j);

  mutable JetKeyDescriptorInstance m_keyDescInstance;
 

  mutable bool m_ownMap; // it is mutable because a map can be created from a const collection
 
  void recordedInSG(std::string key);
 
  void resetJetId(std::size_t);
 
 
protected:
  const fastjet::ClusterSequence* m_fastjetClustSeq;
public:
  const fastjet::ClusterSequence * fastjetClustSeq() const {return m_fastjetClustSeq;} 
  void setFastjetClustSeq(const fastjet::ClusterSequence * cs){ m_fastjetClustSeq = cs;}
 
 
};
 
// auto-symlink:
SG_BASE( JetCollection, DataVector<Jet> );
 
CLASS_DEF( JetCollection , 1162448536 , 1 )
     //CLASS_DEF(JetCollection<Jet>, 3005, 1 )
     //CLASS_DEF(JetCollection<CombinedJetSums> , 3007, 1 )
 
 
template <class InputIterator>
void JetCollection::insert(iterator position, InputIterator first, InputIterator last){
  InputIterator it = first;
  for(; it != last; ++it) acquireJet(*it);
  DataVector<Jet>::insert(position,first,last);
}
                                                                             
#endif