PHAL_Absorption.hpp

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//*****************************************************************//
//    Albany 2.0:  Copyright 2012 Sandia Corporation               //
//    This Software is released under the BSD license detailed     //
//    in the file "license.txt" in the top-level Albany directory  //
//*****************************************************************//

#ifndef PHAL_ABSORPTION_HPP
#define PHAL_ABSORPTION_HPP

#include "Phalanx_ConfigDefs.hpp"
#include "Phalanx_Evaluator_WithBaseImpl.hpp"
#include "Phalanx_Evaluator_Derived.hpp"
#include "Phalanx_MDField.hpp"

#include "Teuchos_ParameterList.hpp"
#include "Epetra_Vector.h"
#include "Sacado_ParameterAccessor.hpp"
#include "Stokhos_KL_ExponentialRandomField.hpp"
#include "Teuchos_Array.hpp"

namespace PHAL {
template<typename EvalT, typename Traits>
class Absorption : 
  public PHX::EvaluatorWithBaseImpl<Traits>,
  public PHX::EvaluatorDerived<EvalT, Traits>,
  public Sacado::ParameterAccessor<EvalT, SPL_Traits> {
  
public:
  typedef typename EvalT::ScalarT ScalarT;
  typedef typename EvalT::MeshScalarT MeshScalarT;

  Absorption(Teuchos::ParameterList& p);
  
  void postRegistrationSetup(typename Traits::SetupData d,
           PHX::FieldManager<Traits>& vm);
  
  void evaluateFields(typename Traits::EvalData d);
  
  ScalarT& getValue(const std::string &n);

private:

  std::size_t numQPs;
  std::size_t numDims;
  PHX::MDField<MeshScalarT,Cell,QuadPoint,Dim> coordVec;
  PHX::MDField<ScalarT,Cell,QuadPoint> absorption;

 
  bool is_constant;

  ScalarT constant_value;

  Teuchos::RCP< Stokhos::KL::ExponentialRandomField<MeshScalarT> > exp_rf_kl;

  Teuchos::Array<ScalarT> rv;
};
}

#endif