/* -*- mode: c++ -*-
*/
/*
GIFT, a flexible content based image retrieval system.
Copyright (C) 1998, 1999, 2000 CUI, University of Geneva
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
*
* CAccessor - a base class for everything
* accessing a GIFT database.
* at present this will be either an inverted file
* or a TrackingGIFT accessor.
* in the future this might be an SQL database or Monet??
*
*
*
* modification history:
*
* WM 19990804 created file
*
*
*
* compiler defines used:
*
*/
#ifndef _CACURL2FTS
#define _CACURL2FTS
#include <string>
#include "TID.h"
#include <iostream.h>
#include <fstream.h>
#include <map>
#include <hash_map>
#include "CAccessorImplementation.h"
class CXMLElement;//constructor
/**
This accessor is a base class for accessors which use an URL2FTS file to
implement the interface of the CAccessor base class.
*/
class CAcURL2FTS:public CAccessorImplementation{
private:
bool mWellConstructed;
protected:
/** map from the url of an image to the name of the feature file for this image */
string_string_map mURLToFFN;
/** map from the id of an image to the name of the feature file for this image */
TID_string_map mIDToFFN;
/** URL -> FeatureFileName */
mutable ifstream mURLToFeatureFile;
/**
Name of the file that contains pairs of URL and the Feature file that belongs to the URL
*/
string mURLToFeatureFileName;
public:
/** gives back the content of mURLToFeatureFileName */
const string& getURLToFeatureFileName()const;
/**
*
* Constructor: slurp in an url2fts file
* and fill the maps.
*
*/
CAcURL2FTS(const CXMLElement& inContentElement);
/**
*
* Is this accessor up and working?
*
*/
virtual operator bool()const;
/**
*
* Give the number of elements stored in this accessor
*
*/
virtual int size()const;
/**
*
* gives the feature file name which corresponds to a given URL
* return value: pair of bool (does the feature file exsist)
string (the feature file name)
*/
pair<bool,string> URLToFFN(const string& inURL)const;
/**
*
* gives the feature file name which corresponds to a given URL
* return value: pair of bool (does the feature file exsist)
string (the feature file name)
*/
pair<bool,string> IDToFFN(TID inID)const;
};
#endif
Documentation generated by muellerw@pc7170 on Son Okt 8 16:04:40 CEST 2000