cpp/galago/include/DocumentNameReader.hpp

   1
   2 //
   3 // DocumentNameReader
   4 //
   5 // 5 January 2007 -- tds
   6 //
   7
   8 #ifndef GALAGO_DOCUMENTNAMEREADER_HPP
   9 #define GALAGO_DOCUMENTNAMEREADER_HPP
  10
  11 #include <string>
  12 #include <vector>
  13 #include "indri/indri-platform.h"
  14 #include "lemur/RVLCompress.hpp"
  15 #include "indri/RVLDecompressStream.hpp"
  16 #include "indri/File.hpp"
  17 #include "UncompressedRead.hpp"
  18
  19 class DocumentNameReader {
  20 private:
  21     struct NameSlot {
  22         std::string prefix;
  23         int offset;
  24         int footerWidth;
  25         std::vector<int> footers;
  26     };
  27
  28     std::vector<NameSlot> _slots;
  29     int _documentCount;
  30
  31 public:
  32     void getInSlot( std::string& result, const NameSlot& slot, int footerIndex ) const;
  33     std::string operator[] ( int index ) const;
  34     std::string get( int index ) const;
  35     void read( const std::string& filename );
  36 };
  37
  38 #endif // GALAGO_DOCUMENTNAMEREADER_HPP