/// \file

/// \ingroup tutorial_ProofSimpleFile

///

/// Selector to fill a set of histograms and merging via file

///

/// \macro_code

///

/// \author Gerardo Ganis (gerardo.ganis@cern.ch)

#ifndef ProofSimpleFile_h

#define ProofSimpleFile_h

#include <TSelector.h>

class TH1F;

class TRandom3;

class TFile;

class TProofOutputFile;

class TDirectory;

class ProofSimpleFile : public TSelector {

private:

Int_t CreateHistoArrays();

void PlotHistos(Int_t opt = 0);

public :

// Specific members

Int_t fNhist;

TH1F **fHistTop;//[fNhist]

TH1F **fHistDir;//[fNhist]

TRandom3 *fRandom;

TFile *fFile;

TProofOutputFile *fProofFile; // For merging via file

TDirectory *fFileDir; // Subdirectory for some histos

ProofSimpleFile();

virtual ~ProofSimpleFile();

virtual Int_t Version() const { return 2; }

virtual void Begin(TTree *tree);

virtual void SlaveBegin(TTree *tree);

virtual Bool_t Process(Long64_t entry);

virtual void SetOption(const char *option) { fOption = option; }

virtual void SetObject(TObject *obj) { fObject = obj; }

virtual void SetInputList(TList *input) { fInput = input; }

virtual TList *GetOutputList() const { return fOutput; }

virtual void SlaveTerminate();

virtual void Terminate();

ClassDef(ProofSimpleFile,0);

};

#endif