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

/* $Id: AliTRDSaxHandler.h 26327 2008-06-02 15:36:18Z cblume $ */

////////////////////////////////////////////////////////////////////////////
//                                                                        //
//  The SAX XML file handler used in the preprocessor                     //
//                                                                        //
//  Author:                                                               //
//    Frederick Kramer (kramer@ikf.uni-frankfurt.de)                      //
//                                                                        //
////////////////////////////////////////////////////////////////////////////

#include "TObject.h"

class TObjArray;

class AliTRDCalDCS;
class AliTRDCalDCSFEE;
class AliTRDCalDCSPTR;
class AliTRDCalDCSGTU;

class AliTRDSaxHandler : public TObject {

public:
  enum { kInsideFEE = 1, kInsidePTR = 2, kInsideGTU = 3 };

  AliTRDSaxHandler();
  AliTRDSaxHandler(const AliTRDSaxHandler &sh);
  virtual ~AliTRDSaxHandler();
  AliTRDSaxHandler &operator=(const AliTRDSaxHandler &sh);

  TObjArray*    GetDCSFEEDataArray()  { return fFEEArr;        }
  TObjArray*    GetDCSPTRDataArray()  { return fPTRArr;        }
  TObjArray*    GetDCSGTUDataArray()  { return fGTUArr;        }
  AliTRDCalDCS* GetCalDCSObj(); // to be called by the preprocessor

  Int_t         GetHandlerStatus() const { return fHandlerStatus; }

  // functions for all possible events
  void          OnStartDocument();
  void          OnEndDocument();
  void          OnStartElement(const char *name, const TList *attributes);
  void          OnEndElement(const char *name);
  void          OnCharacters(const char *name);
  void          OnComment(const char *name);
  void          OnWarning(const char *name);
  void          OnError(const char *name);
  void          OnFatalError(const char *name);
  void          OnCdataBlock(const char *name, Int_t len);

 private:

  Int_t            fHandlerStatus; // 0: everything OK, >0: error
  Int_t            fNDCSPTR;       // number of current PTR unit (to be abandonned soon)
  Int_t            fNDCSGTU;       // number of current GTU unit (to be abandonned soon)
  TObjArray*       fFEEArr;        // array of AliTRDCalDCSFEE objects
  TObjArray*       fPTRArr;        // array of AliTRDCalDCSPTR objects
  TObjArray*       fGTUArr;        // array of AliTRDCalDCSGTU objects
  Int_t            fSystem;        // current system (FEE/PTR/GTU)
  Int_t            fInsideRstate;  // if we are inside rstate
  Int_t            fCurrentSM;     // current supermodule
  Int_t            fCurrentStack;  // current stack
  Int_t            fCurrentROB;    // current ROB during processing
  Int_t            fCurrentMCM;    // current MCM
  TString          fContent;       // content of the xml element (text) 
  AliTRDCalDCSFEE* fDCSFEEObj;     // the calib object for one FEE DCS board
  AliTRDCalDCSPTR* fDCSPTRObj;     // the calib object for one PTR DCS board
  AliTRDCalDCSGTU* fDCSGTUObj;     // the calib object for one GTU DCS board
  AliTRDCalDCS*    fCalDCSObj;     // the complete calib obj containing all inform.

  ClassDef(AliTRDSaxHandler,2);    // The XML file handler for the preprocessor
};
#endif