/* -*- mode: C++; indent-tabs-mode: nil; -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library.

  *

  * Copyright (C) 2003-2008

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_SOPLEX_H

 #define LEMON_SOPLEX_H

 ///\file

 ///\brief Header of the LEMON-SOPLEX lp solver interface.

 #include <vector>

 #include <string>

 #include <lemon/lp_base.h>

 // Forward declaration

 namespace soplex {

   class SoPlex;

 }

 namespace lemon {

   /// \ingroup lp_group

   ///

   /// \brief Interface for the SOPLEX solver

   ///

   /// This class implements an interface for the SoPlex LP solver.

   /// The SoPlex library is an object oriented lp solver library

   /// developed at the Konrad-Zuse-Zentrum für Informationstechnik

   /// Berlin (ZIB). You can find detailed information about it at the

   /// <tt>http://soplex.zib.de</tt> address.

   class SoplexLp : public LpSolver {

   private:

     soplex::SoPlex* soplex;

     std::vector<std::string> _col_names;

     std::map<std::string, int> _col_names_ref;

     std::vector<std::string> _row_names;

     std::map<std::string, int> _row_names_ref;

   private:

     // these values cannot be retrieved element by element

     mutable std::vector<Value> _primal_values;

     mutable std::vector<Value> _dual_values;

     mutable std::vector<Value> _primal_ray;

     mutable std::vector<Value> _dual_ray;

     void _clear_temporals();

   public:

     /// \e

     SoplexLp();

     /// \e

     SoplexLp(const SoplexLp&);

     /// \e

     ~SoplexLp();

     /// \e

     virtual SoplexLp* newSolver() const;

     /// \e

     virtual SoplexLp* cloneSolver() const;

   protected:

     virtual const char* _solverName() const;

     virtual int _addCol();

     virtual int _addRow();

     virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);

     virtual void _eraseCol(int i);

     virtual void _eraseRow(int i);

     virtual void _eraseColId(int i);

     virtual void _eraseRowId(int i);

     virtual void _getColName(int col, std::string& name) const;

     virtual void _setColName(int col, const std::string& name);

     virtual int _colByName(const std::string& name) const;

     virtual void _getRowName(int row, std::string& name) const;

     virtual void _setRowName(int row, const std::string& name);

     virtual int _rowByName(const std::string& name) const;

     virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);

     virtual void _getRowCoeffs(int i, InsertIterator b) const;

     virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);

     virtual void _getColCoeffs(int i, InsertIterator b) const;

     virtual void _setCoeff(int row, int col, Value value);

     virtual Value _getCoeff(int row, int col) const;

     virtual void _setColLowerBound(int i, Value value);

     virtual Value _getColLowerBound(int i) const;

     virtual void _setColUpperBound(int i, Value value);

     virtual Value _getColUpperBound(int i) const;

     virtual void _setRowLowerBound(int i, Value value);

     virtual Value _getRowLowerBound(int i) const;

     virtual void _setRowUpperBound(int i, Value value);

     virtual Value _getRowUpperBound(int i) const;

     virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);

     virtual void _getObjCoeffs(InsertIterator b) const;

     virtual void _setObjCoeff(int i, Value obj_coef);

     virtual Value _getObjCoeff(int i) const;

     virtual void _setSense(Sense sense);

     virtual Sense _getSense() const;

     virtual SolveExitStatus _solve();

     virtual Value _getPrimal(int i) const;

     virtual Value _getDual(int i) const;

     virtual Value _getPrimalValue() const;

     virtual Value _getPrimalRay(int i) const;

     virtual Value _getDualRay(int i) const;

     virtual VarStatus _getColStatus(int i) const;

     virtual VarStatus _getRowStatus(int i) const;

     virtual ProblemType _getPrimalType() const;

     virtual ProblemType _getDualType() const;

     virtual void _clear();

     void _messageLevel(MessageLevel m);

     void _applyMessageLevel();

     int _message_level;

   };

 } //END OF NAMESPACE LEMON

 #endif //LEMON_SOPLEX_H