/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* See cxx source for full Copyright notice */
/* $Id$ */


#ifndef AliAnalysisTaskLeeYangZeros_H
#define AliAnalysisTaskLeeYangZeros_H

// AliAnalysisTaskLeeYangZeros:
// analysis task for Lee Yang Zeroes method
// Author: Naomi van der Kolk (kolk@nikhef.nl)

class AliESDEvent;
class AliAODEvent;
class AliFlowAnalysisWithLeeYangZeros;
class AliFlowEventSimpleMaker;
class TFile;

#include "AliAnalysisTask.h"

class AliAnalysisTaskLeeYangZeros : public AliAnalysisTask {
 public:
  AliAnalysisTaskLeeYangZeros(const char *name = "AliAnalysisTaskLeeYangZeros", Bool_t firstrun = kTRUE);
  virtual ~AliAnalysisTaskLeeYangZeros() {}
  
  virtual void   ConnectInputData(Option_t *);
  virtual void   CreateOutputObjects();
  virtual void   Exec(Option_t *option);
  virtual void   Terminate(Option_t *);

  //lyz flags
  void           SetFirstRunLYZ(Bool_t kt)     { this->fFirstRunLYZ = kt ;  }
  Bool_t         GetFirstRunLYZ() const        { return this->fFirstRunLYZ ; }
  void           SetUseSumLYZ(Bool_t kt)       { this->fUseSumLYZ = kt ;  }
  Bool_t         GetUseSumLYZ() const          { return this->fUseSumLYZ ; }
  void           SetAnalysisType(TString type) {this->fAnalysisType = type ; }
 
 private:
  AliESDEvent *fESD;                      //ESD object
  AliAODEvent* fAOD;                      //AOD object
  TString fAnalysisType;                  //string to select which kind of input to analyse: ESD, AOD or MC
  AliFlowAnalysisWithLeeYangZeros* fLyz;  //LYZ analysis object
  AliFlowEventSimpleMaker* fEventMaker;   //FlowEventSimple maker object

  TFile* fFirstRunFile;    //! file from the first loop over events

  //flags
  Bool_t fFirstRunLYZ ;    //! flag for lyz analysis 
  Bool_t fUseSumLYZ ;      //! flag for lyz analysis 
  
      
  ClassDef(AliAnalysisTaskLeeYangZeros, 1); // example of analysis
};

#endif