#ifndef AliTPCSelectorESD_h
#define AliTPCSelectorESD_h

#include <iostream>
#include <fstream>
using namespace std;
#include <TSelector.h>

#include <TROOT.h>
#include <TChain.h>
#include <TFile.h>

class TString;
class AliESDEvent; 
class AliESD;
class AliESDfriend;
class TH1I;

 
class AliTPCSelectorESD : public TSelector {
public :
  AliTPCSelectorESD(TTree *tree=0);
  virtual ~AliTPCSelectorESD() { /*delete fESD; delete fESDfriend;*/ }
  virtual Int_t   Version() const { return 1; }
  virtual void    Begin(TTree *tree);
  virtual void    SlaveBegin(TTree *tree);
  virtual void    Init(TTree *tree);
  virtual Bool_t  Notify();
  virtual Bool_t  Process(Long64_t entry);
  virtual Int_t   ReadEvent(Long64_t entry);
  virtual Int_t   ProcessIn(Long64_t entry);   
  virtual void    RegisterData();


  virtual void    SetOption(const char *option) { fOption = option; }
  virtual void    SetObject(TObject *obj) { fObject = obj; }
  virtual void    SetInputList(TList *input);
  virtual TList  *GetOutputList() const { return fOutput; }
  virtual void    SlaveTerminate();
  virtual void    Terminate();
  void            CleanESD();
  void            DumpSysInfo(Int_t entry); // dump system info  
   
protected:
  TTree          *fChain;        //! pointer to the analyzed TTree or TChain
  TTree          *fTreeFriend;   //! pointer to friend tree
  AliESDEvent    *fESDevent;      //! esd event
  AliESD         *fESD;          //! pointer to ESD
  AliESDfriend   *fESDfriend;    //! pointer to friend
  //                USER defined variables
  Int_t           fFileNo;       //! file number
  TH1I          *fNtracks;       //! number of Tracks
  TH1I          *fNtracksFriend; //! number of firend Tracks  
  TH1I          *fNClusters;      //! number of clusters on track
  TString       *fRegPath;       // path to store persistent data 
  //
  // System info 
  //
  fstream        *fSysWatch;       // system watch - Memory and CPU usage 
  fstream        *fFileWatch;      // file watch   - write the status of the analyzed files
  Int_t              fDebugLevel;     //debug level  
  ClassDef(AliTPCSelectorESD,1);
};





#endif