/Users/jmonk/Physics/ForIA/ForIA/AnalysisFactory.hh

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#ifndef FORIA_ANALYSISFACTORY_HH
#define FORIA_ANALYSISFACTORY_HH

#include "ForIA/IHistogrammer.hh"
#include "ForIA/Analysis.hh"

#include <string>
#include <map>
#include <iostream>

namespace ForIA{
 
  using std::string;
  using std::map;
  
  
  class AnalysisFactory {
    
  public:
    
    AnalysisFactory();
    
    AnalysisPtr createAnalysis(const string &name, IHistogrammer *histogrammer)const;
    
    vector<string> listAnalyses()const;
    
    static void loadAnalysisLibrary(const string &libName);
    
    static void loadAnalysisLibraries(const string &libList);
    
    static void loadAnalysisLibraries(const vector<string> &libList);
    
  private:
    
    class ICreator{
      
    public:
      virtual AnalysisPtr create(IHistogrammer *histogrammer) const = 0;
      virtual ~ICreator(){}
      
    protected:
      void init(){
        
        AnalysisFactory::s_creators()[name()] = this;
        
        return;
      }
      
      string name(){
        AnalysisPtr tmp = this->create(0);
        return tmp->name();
      }
    };
    
    static void addCreator(const ICreator *creator);

    
  public:    
        
    template <class T>
    class Creator : public ICreator{
    public:
      
      Creator(){
        this->init();
      }

      ~Creator(){
        string n = name();
        if(s_creators()[n] == this){
          s_creators().erase(n);
        }
      }
      
      AnalysisPtr create(IHistogrammer *histogrammer)const{
        return AnalysisPtr(new T(histogrammer));
      }
    };
        
  private:
    
    static map<string, const ICreator*> &s_creators();
    
  };
}


#endif