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#ifndef _MINIMIZERBASE_H_
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#define _MINIMIZERBASE_H_
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#include <string>
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#include <vector>
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#include "MinimizerParameterSet.hpp"
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#define MINSTATUS_ERROR -1
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#define MINSTATUS_CONVERGE 0
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#define MINSTATUS_MAXITER 1
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using namespace std;
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class MinimizerBase{
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public:
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//initialize the minimizer method
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virtual void Init() = 0;
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//minimize the model
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virtual void minimize() = 0;
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//
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virtual int checkConvergence() = 0;
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//check whether the model and the method are matched or not
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virtual bool isSolvable() = 0;
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// get the final status of minimization
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int getMinimizationStatus() {return minimizationStatus;}
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// get the name of minimization method
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const string getName() {return minimizerName;}
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//set the name of minimiation method
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void setName(const string& name) { minimizerName = name;}
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protected:
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int minStatus;
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string minimizerName;
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};
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class Minimizer : public MinimizerBase{
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public:
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virtual void printMinizerInfo() = 0;
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virtual MinimizerParameterSet* creatParameterSet() = 0;
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void setMinX(vector<double>& x) { minX = x;}
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vector<double> getMinX() { return minX;}
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void setPrevMinX(vector<double>& x) { prevMinX = x;}
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vector<double> getPrevMinX() {return prevMinX;}
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int getCurrentIteration() {return currentIter;}
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protected:
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MinimizerParameterSet* paramSet;
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int currentIter;
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// Coordinates yielding the minimum value of the function.
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vector<double> minX;
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// Vector holding the previous point.
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vector<double> prevMinX;
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};
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#endif
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