/* $Id: OSKnitroSolver.h 4292 2011-09-21 05:47:18Z kmartin $ */
/** @file KnitroSolver.h
 *
 * @author  Robert Fourer,  Jun Ma, Kipp Martin,
 * @version 1.0, 05/01/2007
 * @since   OS1.0
 *
 * \remarks
 * Copyright (C) 2005-2011, Robert Fourer, Jun Ma, Kipp Martin,
 * Northwestern University, and the University of Chicago.
 * All Rights Reserved.
 * This software is licensed under the Eclipse Public License.
 * Please see the accompanying LICENSE file in root directory for terms.
 *
 */

#ifndef KNITROSOLVER_H
#define KNITROSOLVER_H

#include "OSConfig.h"



#ifndef NLPPROBLEMDEF_H__
#include  "nlpProblemDef.h"
#endif

#include "OSConfig.h"
#include "OSDefaultSolver.h"
#include "OSrLWriter.h"
#include "OSiLWriter.h"
#include "OSInstance.h"
#include "OSParameters.h"
#include "OSnLNode.h"
#include "OSiLReader.h"
#include "OSInstance.h"
#include "OSExpressionTree.h"
#include "OSnLNode.h"
#include "OSDataStructures.h"
#include "OSFileUtil.h"
#include "OSErrorClass.h"

#ifndef KNITRO_H__
#include  "knitro.h"
#endif

# include <cstddef>
# include <cstdlib>
# include <cctype>
# include <cassert>
# include <stack>
#include <string>
# include <cppad/cppad.hpp>
#include<iostream>




#ifdef HAVE_CTIME
# include <ctime>
#else
# ifdef HAVE_TIME_H
#  include <time.h>
# else
#  error "don't have header file for time"
# endif
#endif


#ifdef HAVE_CMATH
# include <cmath>
#else
# ifdef HAVE_MATH_H
#  include <math.h>
# else
#  error "don't have header file for math"
# endif
#endif



//#include<vector>
//#include <map>



class KnitroProblem : public NlpProblemDef
{
public:

    /** the IpoptProblemclass constructor */
    KnitroProblem(OSInstance *osinstance_ , OSResult *osresult_);

    /** the IpoptProblem class destructor */
    virtual ~KnitroProblem();

    OSResult *osresult;

    OSInstance *osinstance;

    //Knitro specific methods
    //++ Declare virtual base class methods that are implemented here.
    //++ See NlpProblemDef.h for descriptions.
    int   getN (void);
    int   getM (void);
    void  getInitialX (double * const  daX);
    bool  loadProblemIntoKnitro (KTR_context_ptr  kc);
    bool  areDerivativesImplemented
    (const DerivativesImplementedType  nWhichDers);

    int  evalFC (const double * const  daX,
                 double * const  dObj,
                 double * const  daC,
                 void   *        userParams);
    int  evalGA (const double * const  daX,
                 double * const  daG,
                 double * const  daJ,
                 void   *        userParams);
    int  evalH (const double * const  daX,
                const double * const  daLambda,
                double * const  daH,
                void   *        userParams);
    int  evalHV (const double * const  daX,
                 const double * const  daLambda,
                 double * const  daHV,
                 void   *        userParams);

    std::string knitroErrorMsg;
};


/*! \class KnitroSolver
 *  \brief the KnitroSolver class solves problems using Knitro.
 *
 * @author Robert Fourer, Jun Ma, Kipp Martin
 * @version 1.0, 03/14/2004
 * @since OS 1.0
 *
 * \remarks
 * this class takes an OSiL instance and optimizes it using
 * the Knitro solver
 *
 */
class KnitroSolver : public DefaultSolver
{

public:

    /** the KnitroSolver class constructor */
    KnitroSolver();

    /** the KnitroSolver class constructor */
    ~KnitroSolver();

    /*! \fn void CoinSolver::buildSolverInstance()
     *  \brief The implementation of the virtual functions.
     *  \return void.
     */
    virtual void  buildSolverInstance() throw(ErrorClass);

    /*! \fn void setSolverOptions()
     *  \brief The implementation of the virtual functions.
     *  \return void.
     */
    virtual void  setSolverOptions() throw(ErrorClass);

    /** solve results in an instance being read into the Knitro
     * data structrues and optimized */
    virtual void  solve() throw (ErrorClass) ;

    /**
     * use this for debugging, print out the instance that
     * the solver thinks it has and compare this with the OSiL
     * file
     */
    void dataEchoCheck();

private:

    OSrLWriter  *osrlwriter;

    /**@name Methods to block default compiler methods.
    * The compiler automatically generates the following three methods.
    *  Since the default compiler implementation is generally not what
    *  you want (for all but the most simple classes), we usually
    *  put the declarations of these methods in the private section
    *  and never implement them. This prevents the compiler from
    *  implementing an incorrect "default" behavior without us
    *  knowing. (See Scott Meyers book, "Effective C++")
    *
    */
    //@{
    //  KnitroSolver();
    KnitroSolver(const KnitroSolver&);
    KnitroSolver& operator=(const KnitroSolver&);
    //@}
    std::string knitroErrorMsg;

};


#endif
