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

// $Id$

/// \ingroup calign
/// \class AliMUONAlignmentTask
/// \brief Task to align the muon spectrometer
///
//  Author Javier Castillo, CEA/Saclay - Irfu/SPhN

class TList;
class TGraphErrors;
class AliESDEvent;
class AliMUONAlignment;
class AliMUONGeometryTransformer;

#include "AliAnalysisTask.h"

class AliMUONAlignmentTask : public AliAnalysisTask {
 public:
  //  AliMUONAlignmentTask(const char *name = "AliMUONAlignmentTask");
  AliMUONAlignmentTask(const char *name = "AliMUONAlignmentTask", const char *geofilename = "geometry.root", const char *defaultocdb = "local://$ALICE_ROOT/OCDB", const char *misalignocdb = "local://ReAlignOCDB");
  AliMUONAlignmentTask(const AliMUONAlignmentTask& obj);
  AliMUONAlignmentTask& operator=(const AliMUONAlignmentTask& other); 
  virtual ~AliMUONAlignmentTask();
  
  virtual void   LocalInit();
  virtual void   ConnectInputData(Option_t *);
  virtual void   CreateOutputObjects();
  virtual void   Exec(Option_t *option);
  virtual void   Terminate(const Option_t*);

  /// Set geoemetry file name
  void SetGeoFilename(const char* geoFilename) {fGeoFilename = geoFilename;}
  /// Set mis align ocdb
  void SetMisAlignOCDB(const char* misalignOCDB) {fMisAlignOCDB = misalignOCDB;}
  /// Set default ocdb
  void SetDefaultOCDB(const char* defaultOCDB) {fDefaultOCDB = defaultOCDB;}
  void Prepare(const char* geoFilename, const char* defaultOCDB, const char* misalignOCDB);
  
 private:
  AliESDEvent *fESD;                      //!< ESD object

  AliMUONAlignment *fAlign;               ///< The MUON alignment object
  TString fGeoFilename;                   ///< Geometry file name
  TString fMisAlignOCDB;              ///< OCDB with misalignment file
  TString fDefaultOCDB;               ///< Default OCDB
  AliMUONGeometryTransformer *fTransform; ///< MUON geometry transformer
    
  Int_t fTrackTot;             ///< Number of track read 
  Int_t fTrackOk;              ///< Number of track read 

  Double_t fParameters[4*156]; ///< Array of alignment parameters
  Double_t fErrors[4*156];     ///< Array of alignment parameters errors
  Double_t fPulls[4*156];      ///< Array of alignment parameters pulls

  TGraphErrors *fMSDEx ;   ///< Graph of translations along x
  TGraphErrors *fMSDEy ;   ///< Graph of translations along y
  TGraphErrors *fMSDEz ;   ///< Graph of translations along z
  TGraphErrors *fMSDEp;    ///< Graph of rotation about z 

  TList   *fList;          ///< list of graphs
   
  ClassDef(AliMUONAlignmentTask, 2) // example of analysis
};

#endif