Thyra_ListedMultiVectorRandomizer.hpp

// @HEADER
// *****************************************************************************
//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//
// Copyright 2004 NTESS and the Thyra contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER
 
#ifndef THYRA_LISTED_MULTI_VECTOR_RANDOMIZER_HPP
#define THYRA_LISTED_MULTI_VECTOR_RANDOMIZER_HPP
 
#include "Thyra_MultiVectorRandomizerBase.hpp"
#include "Thyra_MultiVectorStdOps.hpp"
 
 
namespace Thyra {
 

template<class Scalar>
class ListedMultiVectorRandomizer : public MultiVectorRandomizerBase<Scalar> {
public:

  ListedMultiVectorRandomizer(
    const Teuchos::RCP<const MultiVectorBase<Scalar> >    multiVecs[]
    ,const int                                                    numMultiVecs
    );

  void initialize(
    const Teuchos::RCP<const MultiVectorBase<Scalar> >    multiVecs[]
    ,const int                                                    numMultiVecs
    );


  bool isCompatible( const VectorSpaceBase<Scalar> &space ) const;

 
private:


  void randomizeImpl(const Ptr<MultiVectorBase<Scalar> > &mv);

 
private:
 
  typedef std::vector<Teuchos::RCP<const MultiVectorBase<Scalar> > > multiVecs_t;
  multiVecs_t  multiVecs_;
  int          curr_mv_i_;
  
};
 
 
// //////////////////////////////
// Definitions
 
 
template<class Scalar>
ListedMultiVectorRandomizer<Scalar>::ListedMultiVectorRandomizer(
  const Teuchos::RCP<const MultiVectorBase<Scalar> >    multiVecs[]
  ,const int                                                    numMultiVecs
  )
{
  initialize(multiVecs,numMultiVecs);
}
 
 
template<class Scalar>
void ListedMultiVectorRandomizer<Scalar>::initialize(
  const Teuchos::RCP<const MultiVectorBase<Scalar> >    multiVecs[]
  ,const int                                                    numMultiVecs
  )
{
  multiVecs_.resize(numMultiVecs);
  std::copy( multiVecs, multiVecs + numMultiVecs, multiVecs_.begin() );
  curr_mv_i_ = 0;
}
 
 
// Overridden from MultiVectorRandomizerBase
 
 
template<class Scalar>
bool ListedMultiVectorRandomizer<Scalar>::isCompatible( const VectorSpaceBase<Scalar> &space ) const
{
  return multiVecs_[curr_mv_i_]->range()->isCompatible(space);
}
 
 
// Overridded private functions
 
 
template<class Scalar>
void ListedMultiVectorRandomizer<Scalar>::randomizeImpl(
  const Ptr<MultiVectorBase<Scalar> > &mv)
{
#ifdef TEUCHOS_DEBUG
  TEUCHOS_TEST_FOR_EXCEPT( multiVecs_.size()==0 );
#endif
  const Teuchos::RCP<const MultiVectorBase<Scalar> > currMV = multiVecs_[curr_mv_i_];
#ifdef TEUCHOS_DEBUG
  THYRA_ASSERT_VEC_SPACES("ListedMultiVectorRandomizer<Scalar>::randomize(mv)", *currMV->range(), *mv->range() );
  THYRA_ASSERT_VEC_SPACES("ListedMultiVectorRandomizer<Scalar>::randomize(mv)", *currMV->domain(), *mv->domain() );
#endif
  Thyra::assign( mv, *currMV );
  if( curr_mv_i_ == static_cast<int>(multiVecs_.size()) - 1 )
    curr_mv_i_ = 0;
  else
    ++curr_mv_i_;
}
 
 
} // namespace Thyra
 
 
#endif // THYRA_LISTED_MULTI_VECTOR_RANDOMIZER_HPP