FEApp_FunctionFactoryImpl.hpp

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// $Id: FEApp_FunctionFactoryImpl.hpp,v 1.1 2008/08/01 22:57:12 etphipp Exp $ 
// $Source: /space/CVS/Trilinos/packages/sacado/example/FEApp/FEApp_FunctionFactoryImpl.hpp,v $ 
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// 
//                           Sacado Package
//                 Copyright (2006) Sandia Corporation
// 
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
// 
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
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#include "Teuchos_TestForException.hpp"
#include "FEApp_ConstantFunction.hpp"

template <typename ScalarT>
FEApp::FunctionFactory<ScalarT>::FunctionFactory(
      const Teuchos::RCP<Teuchos::ParameterList>& funcParams_,
      const Teuchos::RCP<Sacado::ScalarParameterLibrary>& paramLib_) :
  funcParams(funcParams_), paramLib(paramLib_)
{
}

template <typename ScalarT>
Teuchos::RCP< FEApp::AbstractFunction<ScalarT> >
FEApp::FunctionFactory<ScalarT>::create()
{
  Teuchos::RCP< FEApp::AbstractFunction<ScalarT> > strategy;

  std::string& method = funcParams->get("Name", "Constant");
  if (method == "Constant") {
    double value = funcParams->get("Constant Value", 1.0);
    strategy = 
      Teuchos::rcp(new FEApp::ConstantFunction<ScalarT>(value, paramLib));
  }
  else {
    TEST_FOR_EXCEPTION(true, Teuchos::Exceptions::InvalidParameter,
           std::endl << 
           "Error!  Unknown function " << method << 
           "!" << std::endl << "Supplied parameter list is " << 
           std::endl << *funcParams);
  }

  return strategy;
}

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