#ifndef ALISTREAM_H
#define ALISTREAM_H
/* Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */

////////////////////////////////////////////////////////////////////////
//
//  Class to handle files on IO
//                  
//  Author: Jiri Chudoba (CERN), 2001
//
////////////////////////////////////////////////////////////////////////

// --- ROOT system ---
#include "TNamed.h"
#include "TObjString.h"
#include "TArrayI.h"
#include "TClonesArray.h"
#include "TFile.h"

// --- AliRoot header files ---

class AliStream: public TNamed {

public:
  AliStream();
  AliStream(Option_t *option);
  virtual ~AliStream();
  void AddFile(const char *fileName);
  Bool_t NextEventInStream(Int_t &eventNr);
  Bool_t OpenNextFile();
  Bool_t ImportgAlice();
  TFile* CurrentFile() { return fCurrentFile;}
  void ChangeMode(Option_t* option);     // reset READ or UPDATE mode
  
private:  
  Int_t fLastEventSerialNr;
  Int_t fLastEventNr;
  Int_t fCurrentFileIndex;
  Int_t fEvents;                //! nr. of events in the current file
  TString fMode;                  // = 0 for READONLY, = 1 for READWRITE
  TFile *fCurrentFile;          //! pointer to current open file
  TObjArray * fFileNames;
  
  ClassDef(AliStream,1)
};

#endif // ALISTREAM_H