AliEmcalTrackSelectionESD.cxx

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 * Copyright(c) 1998-2015, ALICE Experiment at CERN, All rights reserved. *
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 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
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 * documentation strictly for non-commercial purposes is hereby granted   *
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 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
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#include <TBits.h>
#include <TClonesArray.h>
#include <TObjArray.h>
#include <memory>

#include "AliEmcalTrackSelectionESD.h"
#include "AliESDEvent.h"
#include "AliESDtrack.h"
#include "AliESDtrackCuts.h"
#include "AliLog.h"
#include "AliPicoTrack.h"
#include "AliVCuts.h"
#include "AliEmcalESDTrackCutsGenerator.h"

ClassImp(AliEmcalTrackSelectionESD)

AliEmcalTrackSelectionESD::AliEmcalTrackSelectionESD():
    AliEmcalTrackSelection()
{
}

AliEmcalTrackSelectionESD::AliEmcalTrackSelectionESD(AliVCuts* cuts):
    AliEmcalTrackSelection()
{
  this->AddTrackCuts(cuts);
}

AliEmcalTrackSelectionESD::AliEmcalTrackSelectionESD(ETrackFilterType_t type, const char* period):
  AliEmcalTrackSelection()
{
  GenerateTrackCuts(type, period);
}

void AliEmcalTrackSelectionESD::GenerateTrackCuts(ETrackFilterType_t type, const char* period)
{
  if (fListOfCuts) fListOfCuts->Clear();
  fSelectionModeAny = kTRUE;

  switch (type) {
  case kHybridTracks:
    AliEmcalESDTrackCutsGenerator::AddHybridTrackCuts(this, period);
    break;

  case kTPCOnlyTracks:
    AliEmcalESDTrackCutsGenerator::AddTPCOnlyTrackCuts(this, period);
    break;

  default:
    break;
  }
}

bool AliEmcalTrackSelectionESD::IsTrackAccepted(AliVTrack* const trk) {
  if (!fListOfCuts) return kTRUE;
  AliESDtrack *esdt = dynamic_cast<AliESDtrack *>(trk);
  if (!esdt) {
    AliPicoTrack *picoTrack = dynamic_cast<AliPicoTrack *>(trk);
    if (picoTrack) {
      esdt = dynamic_cast<AliESDtrack*>(picoTrack->GetTrack());
    }
    else {
      AliError("Neither Pico nor ESD track");
      return kFALSE;
    }
  }

  fTrackBitmap.ResetAllBits();
  Int_t cutcounter = 0;
  for (TIter cutIter = TIter(fListOfCuts).Begin(); cutIter != TIter::End(); ++cutIter){
    if((static_cast<AliVCuts *>(*cutIter))->IsSelected(esdt)) fTrackBitmap.SetBitNumber(cutcounter);
    cutcounter++;
  }
  // In case of ANY at least one bit has to be set, while in case of ALL all bits have to be set
  if (fSelectionModeAny){
    return fTrackBitmap.CountBits() > 0 || cutcounter == 0;
  } else {
    return fTrackBitmap.CountBits() == cutcounter;
  }
}