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/** \file   Intrepid_CubatureDirectTetDefault.hpp
    \brief  Header file for the Intrepid::CubatureDirectTetDefault class.
    \author Created by P. Bochev and D. Ridzal.
*/

#ifndef INTREPID_CUBATURE_DIRECT_TET_DEFAULT_HPP
#define INTREPID_CUBATURE_DIRECT_TET_DEFAULT_HPP

#include "Intrepid_ConfigDefs.hpp"
#include "Intrepid_CubatureDirect.hpp"
#include "Teuchos_Assert.hpp"

/** \def   INTREPID_CUBATURE_TET_DEFAULT_MAX
  \brief The maximum degree of the polynomial that can be integrated exactly by
         a direct tetrahedron rule of the default type.
*/
// srkenno@sandia.gov 6/21/10:
// see below comment for the enum
#define INTREPID_CUBATURE_TET_DEFAULT_MAX 20


namespace Intrepid {

/** \class Intrepid::CubatureDirectTetDefault
    \brief Defines direct integration rules on a tetrahedron.
*/
template<class Scalar, class ArrayPoint = FieldContainer<Scalar>, class ArrayWeight = ArrayPoint>
class CubatureDirectTetDefault : public Intrepid::CubatureDirect<Scalar,ArrayPoint,ArrayWeight> {
  public:
  // srkenno@sandia.gov 6/21/10:
  // This indirection is to workaround a compiler bug on the sun platform, 5.7 toolset, SunOS 10.
  enum {INTREPID_CUBATURE_TET_DEFAULT_MAX_ENUM = INTREPID_CUBATURE_TET_DEFAULT_MAX};
  private:

  /** \brief Complete set of data defining default cubature rules on a tetrahedron.
  */
  static const CubatureTemplate cubature_data_[INTREPID_CUBATURE_TET_DEFAULT_MAX_ENUM+1];

  /** \brief Names of templates for frequently used direct cubature rules.
  */
  static const char *cubature_name_;


  public:

  ~CubatureDirectTetDefault() {}

  /** \brief Constructor.

      \param degree           [in]     - The degree of polynomials that are integrated
                                         exactly by this cubature rule. Default: 0.
  */
  CubatureDirectTetDefault(const int degree = 0);

  /** \brief Returns cubature name.
  */
  const char* getName() const;

  /** \brief Exposes cubature data.
  */
  const CubatureTemplate * exposeCubatureData() const;

  /** \brief Returns maximum cubature accuracy.
  */
  int getMaxAccuracy() const;

  /** \brief Exposes cubature data, accessible without construction.
  */
  static const CubatureTemplate (& exposeCubatureDataStatic())[INTREPID_CUBATURE_TET_DEFAULT_MAX_ENUM+1];

}; // end class CubatureDirect 

template<class Scalar, class ArrayPoint, class ArrayWeight>
inline const CubatureTemplate (& CubatureDirectTetDefault<Scalar,ArrayPoint,ArrayWeight>::exposeCubatureDataStatic())[INTREPID_CUBATURE_TET_DEFAULT_MAX_ENUM+1] {
  return cubature_data_;
}

} // end namespace Intrepid


// include templated definitions
#include <Intrepid_CubatureDirectTetDefaultDef.hpp>

#endif
