STEER/TFndFileManager.h

// @(#)fROOT/STEER:$Name:  $:$Id: TFndFileManager.h,v 1.4 2007/09/05 11:09:42 Diego_Faso Exp $
// Author: Diego Faso <mailto:faso@to.infn.it>, 2005/06/24

#ifndef FROOT_TFndFileManager
#define FROOT_TFndFileManager

//                TFndFileManager                      //
//                                                     //
// Both ROOT and ASCII files can be handled by         //
// this class:                                         //
//           - file existence check                    //
//           - ascii characters search and replace     //
//           - etc...                                  //
//                                                     //

#include "TNamed.h"

class TString;
class TFile;
class TObjArray;

class TFndFileManager : public TNamed
{
  //--- Data members
 protected:
  Bool_t fdebug; 
  Bool_t fReady; 
  Bool_t fAsciiLoaded; 
  Bool_t fRootLoaded; 
  const Char_t *fOriginalPath;  
  TString *fPath;  
  TString *fFileName;

  FILE *fAsciiFile;
  TFile *fRootFile;

  //--- Methods
 public:
  TFndFileManager();
  TFndFileManager(const char *path, Bool_t debug = kFALSE);
  virtual ~TFndFileManager();     

  virtual void AppendToPath(Char_t *path);
  virtual void ResetPath() {fPath->Resize(0); *fPath+=fOriginalPath;}

  Int_t Ascii(Char_t *filename, Char_t *option="r");
  Int_t Root(Char_t *filename, Char_t *option="OPEN");
  
  // --- ascii file operations
  void RewindStream(){ rewind(fAsciiFile); }
  void ReplaceChar(Char_t *ori_char,Char_t *new_char);
  Char_t *GetFirstLine(){ rewind(fAsciiFile); return GetNextLine();}

  const Int_t GetNumOfColumns(Char_t *delimiter);
  Char_t *GetNextLine();
  Char_t *GetLine(Int_t n);
  void GetFirstLine(Float_t *array,Int_t nvar,Char_t *delimiter=""){ rewind(fAsciiFile); GetNextLine(array,nvar,delimiter);}
  Int_t GetNextLine(Float_t *array,Int_t nvar,Char_t *delimiter="");

  // --- Get methods
  Char_t *GetPath()     {return (Char_t *)fPath->Data();}
  Char_t *GetFileName();

  TFile *GetRootFile()  {return fRootFile;}
  FILE  *GetAsciiFile() {return fAsciiFile;}


  virtual void ReadAscii();

  virtual void Close(); // Close all opened files

  void Print(Option_t * = 0) const;     // (overload of TObject method)
  virtual void HowTo();

 private:
  void BuildFileName(Char_t *filename);
  Bool_t CheckExistence(); // output is kTRUE if the file exists

  ClassDef(TFndFileManager,1) 
    };
#endif //FROOT_TFndFileManager

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