AliTrackContainer.h

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#ifndef ALITRACKCONTAINER_H
#define ALITRACKCONTAINER_H

class AliVEvent;
class AliVParticle;
class AliVCuts;
class AliTLorentzVector;

#include <TArrayC.h>

#include "AliVTrack.h"
#include "AliEmcalTrackSelection.h"
#include "AliEmcalTrackSelResultHybrid.h"
#include "AliParticleContainer.h"

#if !(defined(__CINT__) || defined(__MAKECINT__))
typedef EMCALIterableContainer::AliEmcalIterableContainerT<AliVTrack, EMCALIterableContainer::operator_star_object<AliVTrack> > AliTrackIterableContainer;
typedef EMCALIterableContainer::AliEmcalIterableContainerT<AliVTrack, EMCALIterableContainer::operator_star_pair<AliVTrack> > AliTrackIterableMomentumContainer;
#endif

class AliTrackContainer : public AliParticleContainer {
 public:
 
  class TrackOwnerHandler : public TObject {
  public:
    TrackOwnerHandler();
    TrackOwnerHandler(TObjArray *managedobject, Bool_t ownership);
    TrackOwnerHandler(const TrackOwnerHandler &other);
    TrackOwnerHandler &operator=(const TrackOwnerHandler &other);
    virtual ~TrackOwnerHandler();

    void SetObject(TObjArray *obj);
    void SetOwner(Bool_t owner);

    TObjArray *GetData() const { return fManagedObject; }
    Bool_t IsOwner() const { return fOwnership; }

    void TransferOwnershipTo(TrackOwnerHandler &target);
    void ReceiveOwnershipFrom(TrackOwnerHandler &source);

  private:
    TObjArray          *fManagedObject;            
    Bool_t              fOwnership;                 
    
    ClassDef(TrackOwnerHandler, 1);
  };

  typedef AliEmcalTrackSelection::ETrackFilterType_t ETrackFilterType_t;

  enum ETrackType_t {
    kRejected = -1,                  
    kUndefined = 0,                  
    kHybridGlobal = 0,               
    kHybridConstrained = 1,          
    kHybridConstrainedNoITSrefit = 2,
  };

  AliTrackContainer();
  AliTrackContainer(const char *name, const char *period = "");
  virtual ~AliTrackContainer(){;}

  virtual Bool_t              ApplyTrackCuts(const AliVTrack* vp, UInt_t &rejectionReason) const;
  virtual Bool_t              AcceptObject(Int_t i, UInt_t &rejectionReason) const                        { return AcceptTrack(i, rejectionReason)        ; }
  virtual Bool_t              AcceptObject(const TObject* obj, UInt_t &rejectionReason) const             { return AcceptTrack(dynamic_cast<const AliVTrack*>(obj), rejectionReason); }
  virtual Bool_t              AcceptParticle(Int_t i, UInt_t &rejectionReason) const                      { return AcceptTrack(i, rejectionReason); }
  virtual Bool_t              AcceptParticle(const AliVParticle* vp, UInt_t &rejectionReason) const       { return AcceptTrack(dynamic_cast<const AliVTrack*>(vp), rejectionReason); }
  virtual AliVParticle       *GetParticle(Int_t i=-1)                const { return GetTrack(i)           ; }
  virtual AliVParticle       *GetAcceptParticle(Int_t i=-1)          const { return GetAcceptTrack(i)     ; }
  virtual AliVParticle       *GetNextAcceptParticle()                      { return GetNextAcceptTrack()  ; }
  virtual AliVParticle       *GetNextParticle()                            { return GetNextTrack()        ; }
  virtual Bool_t              AcceptTrack(const AliVTrack* vp, UInt_t &rejectionReason)  const;
  virtual Bool_t              AcceptTrack(Int_t i, UInt_t &rejectionReason) const;
  virtual AliVTrack          *GetLeadingTrack(const char* opt="")          { return static_cast<AliVTrack*>(GetLeadingParticle(opt)); }
  virtual AliVTrack          *GetTrack(Int_t i=-1)                   const;
  virtual AliVTrack          *GetAcceptTrack(Int_t i=-1)             const;
  virtual AliVTrack          *GetNextAcceptTrack()                        ;
  virtual AliVTrack          *GetNextTrack()                              ;
  Char_t                      GetTrackType(const AliVTrack* track)   const;
  virtual Bool_t              GetMomentumFromTrack(TLorentzVector &mom, const AliVTrack* track, Double_t mass) const;
  virtual Bool_t              GetMomentumFromTrack(TLorentzVector &mom, const AliVTrack* track) const;
  virtual Bool_t              GetMomentum(TLorentzVector &mom, Int_t i) const;
  virtual Bool_t              GetAcceptMomentum(TLorentzVector &mom, Int_t i) const;
  virtual Bool_t              GetNextMomentum(TLorentzVector &mom);
  virtual Bool_t              GetNextAcceptMomentum(TLorentzVector &mom);
  Int_t                       GetNTracks()                              const   { return GetNParticles()         ; }
  Int_t                       GetNAcceptedTracks()                              { return GetNAcceptedParticles() ; }
  ETrackFilterType_t          GetTrackFilterType()                      const   { return fTrackFilterType; }
  Char_t                      GetTrackType(Int_t i)                     const   { return i >= 0 && i < fTrackTypes.GetSize() ? fTrackTypes[i] : (Char_t)kUndefined ; }

  void                        SetArray(const AliVEvent *event);

  void                        SetTrackFilterType(ETrackFilterType_t f)          { fTrackFilterType = f; }
  void                        SetFilterHybridTracks(Bool_t f)                   { if (f) fTrackFilterType = AliEmcalTrackSelection::kHybridTracks; else fTrackFilterType = AliEmcalTrackSelection::kNoTrackFilter; }   // legacy method
  void                        SetITSHybridTrackDistinction(Bool_t doUse)        { fITSHybridTrackDistinction = doUse; }

  void                        SetTrackCutsPeriod(const char* period)            { fTrackCutsPeriod = period; }
  void                        AddTrackCuts(AliVCuts *cuts);
  Int_t                       GetNumberOfCutObjects() const;
  AliVCuts                   *GetTrackCuts(Int_t icut);
  void                        SetAODFilterBits(UInt_t bits)                     { fAODFilterBits   = bits  ; }
  void                        AddAODFilterBit(UInt_t bit)                       { fAODFilterBits  |= bit   ; }
  UInt_t                      GetAODFilterBits()                          const { return fAODFilterBits    ; }
  Bool_t                      IsHybridTrackSelection() const;

  void SetSelectionModeAny() { fSelectionModeAny = kTRUE ; }
  void SetSelectionModeAll() { fSelectionModeAny = kFALSE; }

  void                        NextEvent(const AliVEvent* event);

  static void                 SetDefTrackCutsPeriod(const char* period)       { fgDefTrackCutsPeriod = period; }
  static TString              GetDefTrackCutsPeriod()                         { return fgDefTrackCutsPeriod  ; }

  const char*                 GetTitle() const;

#if !(defined(__CINT__) || defined(__MAKECINT__))
  const AliTrackIterableContainer      all() const;
  const AliTrackIterableContainer      accepted() const;

  const AliTrackIterableMomentumContainer      all_momentum() const;
  const AliTrackIterableMomentumContainer      accepted_momentum() const;
#endif

 protected:
  virtual TString             GetDefaultArrayName(const AliVEvent * const ev) const;

  PWG::EMCAL::AliEmcalTrackSelResultHybrid::HybridType_t  GetHybridDefinition(const PWG::EMCAL::AliEmcalTrackSelResultPtr &selectionResult) const;

  static TString              fgDefTrackCutsPeriod;           

  ETrackFilterType_t          fTrackFilterType;               
  TObjArray                  *fListOfCuts;                    
  Bool_t                      fSelectionModeAny;              
  Bool_t                      fITSHybridTrackDistinction;     
  UInt_t                      fAODFilterBits;                 
  TString                     fTrackCutsPeriod;               
  AliEmcalTrackSelection     *fEmcalTrackSelection;           
  TrackOwnerHandler           fFilteredTracks;                
  TArrayC                     fTrackTypes;                    

 private:
  AliTrackContainer(const AliTrackContainer& obj); // copy constructor
  AliTrackContainer& operator=(const AliTrackContainer& other); // assignment

  ClassDef(AliTrackContainer,1);
};

#endif