Input_Output_Manager.hpp

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/***************************************************************************
                          Input_Output_Manager.hpp  -  description
                             -------------------
    begin                : cs march 10 2004
    copyright            : (C) 2004 by Ferenc Bodon
    email                : bodon@cs.bme.hu
 ***************************************************************************/

#ifndef Input_Output_Manager_HPP
#define Input_Output_Manager_HPP

#include "common.hpp"  
#include <fstream>
#include <vector>
#include <set>
using namespace std;


class Input_Output_Manager:public ofstream
{
public:

      Input_Output_Manager( ifstream& basket_file,  const char* output_file_name );
   
      int read_in_a_line( set<itemtype>& basket );

      unsigned long find_frequent_items( ifstream& mis_file,
                          set< pair<itemtype, unsigned long> >& support_of_items, 
                                         vector<double>& mis_abs);

      void basket_recode( const set<itemtype>& original_basket, vector<itemtype>& new_basket );

      void write_out_basket( const set<itemtype>& itemset );

      void write_out_basket_and_counter( const set<itemtype>& itemset, const unsigned long counter );

      void rewind(); 

      ~Input_Output_Manager( );

private:
   ifstream& basket_file;
   
   vector<itemtype> new_code;

   vector<itemtype> new_code_inverse;
};


#endif

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