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 );

   countertype find_frequent_items( 
      const double min_supp, vector<countertype>& support_of_items );

   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 countertype counter );

   void rewind(); 

   ~Input_Output_Manager( );

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

   vector<itemtype> new_code_inverse;
};


#endif

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