CacheDecoderBase.hpp

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#ifndef CacheDecoderBase_HPP
#define CacheDecoderBase_HPP

#include "io/codec/decoder/DecoderBase.hpp"
#include "io/output/BufferedOutput.hpp"
#include "util/Formatter.hpp"
#include "io/FDRepr.hpp"  
#include <vector>
#include <iostream>

template <class FR = FDRepr>
class CacheDecoderBase : public DecoderBase< BufferedOutput<FR> >
{
   public:
     
      typedef typename DecoderBase< BufferedOutput<FR> >::params_t params_t;
      CacheDecoderBase(const params_t* par)
         : DecoderBase< BufferedOutput<FR> >(par){}

      ~CacheDecoderBase()
      {
         for(std::vector< std::pair<char*, unsigned int> >::iterator it = 
                code_inverse.begin(); it != code_inverse.end(); ++it)
            delete [] (*it).first;
      }

         
      void setCodeInverse( const std::vector<item_t>& code_inverse )
      {  
         char* temp_string;
         std::streamsize pos;
         unsigned int length;
         std::pair<char*, unsigned int> temp_pair;
         for( std::vector<item_t>::const_iterator it = code_inverse.begin();
              it != code_inverse.end(); ++it)
         {
            pos = this->buffer_size;
            Formatter::IntToStringBack(*it, this->buffer, pos);
            length = this->buffer_size - pos;
            temp_string = new char[length];
            memcpy( temp_string, &(this->buffer)[pos], length );
            temp_pair.first = temp_string;
            temp_pair.second = length;
            this->code_inverse.push_back(temp_pair);
         }
      }  
      
   protected:
      std::vector< std::pair<char*, unsigned int> > code_inverse;
};

#endif

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