/*
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// 
// ***********************************************************************
// 
//      Teko: A package for block and physics based preconditioning
//                  Copyright 2010 Sandia Corporation 
//  
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
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*/

#include "Teko_ImplicitLinearOp.hpp"

namespace Teko {

using Teuchos::rcpFromRef;
using Teuchos::rcp_dynamic_cast;
using Teuchos::rcp_const_cast;
using Teuchos::RCP;

using Thyra::MultiVectorBase;

bool ImplicitLinearOp::opSupportedImpl(const Thyra::EOpTransp M_trans) const
{
  return (M_trans == Thyra::NOTRANS);
}

void ImplicitLinearOp::applyImpl(const Thyra::EOpTransp M_trans, const Thyra::MultiVectorBase<double> & x,
                                 const Teuchos::Ptr<Thyra::MultiVectorBase<double> > & y, 
                                 const double alpha, const double beta) const
{
   TEUCHOS_TEST_FOR_EXCEPTION(M_trans!=Thyra::NOTRANS,std::runtime_error,
                           "Linear operators of inherited type Teko::ImplicitLinearOp "
                           "cannot handle conjugation (yet!)");

   MultiVector srcX = rcp_const_cast<MultiVectorBase<double> >(rcpFromRef(x));
   MultiVector destY = rcp_dynamic_cast<MultiVectorBase<double> >(rcpFromRef(*y));

   // call apply
   implicitApply(srcX,destY,alpha,beta);
}
 
} // end namespace Teko
