AliEmcalTriggerDataGrid.h

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#ifndef ALIEMCALTRIGGERDATAGRID_H
#define ALIEMCALTRIGGERDATAGRID_H
/* Copyright(c) 1998-2014, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

#include <TObject.h>
#include <exception>
#include <sstream>
#include <string>

template<typename T>
class AliEmcalTriggerDataGrid : public TObject {
public:
  class UninitException : public std::exception{
  public:
    UninitException():
      std::exception()
    {}
    virtual ~UninitException() throw() {}

    virtual const char *what() const throw() { return "Trigger channel map not initialized"; }
  };

  class OutOfBoundsException : public std::exception{
  public:
    enum Direction_t {
      kColDir     = 0,
      kRowDir     = 1,
      kUndef      = 2 
    };
    OutOfBoundsException():
      std::exception(),
      fMessage(),
      fDir(kUndef),
      fSize(0),
      fIndex()
    {
    }
    OutOfBoundsException(Direction_t dir, int index, int size):
      std::exception(),
      fMessage(""),
      fDir(dir),
      fSize(size),
      fIndex(index)
    {
      std::stringstream errormessage;
      errormessage << "Out-of-bounds access in " << fDir << "Direction: Element " << fIndex << ", Size " << fSize;
      fMessage = errormessage.str();
    }
    virtual ~OutOfBoundsException() throw() {}

    const char *what() const throw() { return fMessage.c_str(); }

    int GetSize() const { return fSize; }

    int GetIndex() const { return fIndex;}

    Direction_t GetDirection() const { return fDir; }

  private:
    std::string         fMessage; 
    Direction_t         fDir;     
    int                 fSize;    
    int                 fIndex;   
  };

  AliEmcalTriggerDataGrid();

  AliEmcalTriggerDataGrid(Int_t cols, Int_t rows);

  AliEmcalTriggerDataGrid(const AliEmcalTriggerDataGrid<T> &ref);

  AliEmcalTriggerDataGrid<T> &operator=(const AliEmcalTriggerDataGrid<T> &ref);

  const T &operator()(Int_t col, Int_t row) const;

  T &operator()(Int_t col, Int_t row);

  virtual ~AliEmcalTriggerDataGrid();

  void Reset();


  Bool_t IsAllocated() const { return fValues != NULL; }

  void Allocate(Int_t ncols, Int_t nrows);

  void SetADC(Int_t col, Int_t row, const T &adc);

  const T &GetADC(Int_t col, Int_t row) const;

  Int_t GetNumberOfCols() const { return fNCols; }

  Int_t GetNumberOfRows() const { return fNRows; }

protected:
  Int_t GetIndex(Int_t col, Int_t row) const;

  Int_t                     fNCols;           
  Int_t                     fNRows;           
  T                         *fValues;         

  ClassDef(AliEmcalTriggerDataGrid, 1);
};


#endif