//@HEADER
// ***********************************************************************
// 
//     EpetraExt: Epetra Extended - Linear Algebra Services Package
//                 Copyright (2001) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
// 
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
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//  
// This library is distributed in the hope that it will be useful, but
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
// 
// ***********************************************************************
//@HEADER

#ifndef EpetraExt_CRSGRAPH_MAPCOLORINGINDEX_H
#define EpetraExt_CRSGRAPH_MAPCOLORINGINDEX_H

#include <EpetraExt_Transform.h>

#include <vector>

class Epetra_CrsGraph;
class Epetra_MapColoring;
class Epetra_IntVector;

namespace EpetraExt {

///
/** Generates a std::vector of Epetra_IntVector's to be used to map perturbation
 * contributions to a CrsGraph/CrsMatrix from a perturbed vector.
 */

class CrsGraph_MapColoringIndex
: public StructuralTransform< Epetra_CrsGraph,std::vector<Epetra_IntVector> > {

  const Epetra_MapColoring & ColorMap_;

 public:

  ///
  /** Destructor
   */
  ~CrsGraph_MapColoringIndex() {}

  ///
  /** Constructor
   * input param ColorMap defines the perturbation coloring
   */
  CrsGraph_MapColoringIndex( const Epetra_MapColoring & ColorMap )
  : ColorMap_( ColorMap )
  {}

  ///
  /** Generates a std::vector<Epetra_IntVector> from the input Epetra_CrsGraph
   */
  NewTypeRef operator()( OriginalTypeRef orig );
};

} //namespace EpetraExt

#endif //EpetraExt_CRSGRAPH_MAPCOLORINGINDEX_H