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UnitsExtension.h

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#if !defined(UNITSEXTENSION_INCLUDED)
   #define UNITSEXTENSION_INCLUDED

// Include files
#include <string>
#include <vector>
#include "GaudiKernel/StatusCode.h"

//
// ClassName:   Units-Extension for PropertyCompiler
//  
// Description: This class is extending the property-compiler by introducing the capability
//              of handling units. The units are defined in an own units-definition file.
//              From the definintion file the calculation algorithm for the internal 
//              representation of the unit is calculated. If the compiler detects an unit
//              it is calculating the internal representation and assigns already the internal
//              value to the property.
//
// Author:      Stefan Probst
//

class UnitsObject {
  private:
    std::string m_unitName;         // name of unit (e.g. cm, m, dm,...)
    double m_factor;           // value which is multiplied with unit to get internal representation

  public:
    UnitsObject(std::string name, double factor) {
      m_unitName = name;
      m_factor = factor;
    }

    ~UnitsObject() {
    }

    void setName(std::string name) {
      m_unitName = name;
    }

    std::string getName() {
      return m_unitName;
    }

    void setFactor(double factor) {
      m_factor = factor;
    }

    double getFactor() {
      return m_factor;
    }
};


class UnitsExtension {
  private:
    std::vector<UnitsObject> unitVector;
    bool addUnit(std::string name, double factor);

  public:
    bool existsUnit(std::string name);
    double getFactor(std::string name);
    bool getUnits(std::string definitionFile);
};


#endif

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