System documentation of the GNU Image-Finding Tool

CAcURL2FTS.h
1 /* -*- mode: c++ -*-
2 */
3 /*
4 
5  GIFT, a flexible content based image retrieval system.
6  Copyright (C) 1998, 1999, 2000, 2001, 2002, CUI University of Geneva
7 
8  Copyright (C) 2003, 2004 Bayreuth University
9  2005 Bamberg University
10  This program is free software; you can redistribute it and/or modify
11  it under the terms of the GNU General Public License as published by
12  the Free Software Foundation; either version 2 of the License, or
13  (at your option) any later version.
14 
15  This program is distributed in the hope that it will be useful,
16  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  GNU General Public License for more details.
19 
20  You should have received a copy of the GNU General Public License
21  along with this program; if not, write to the Free Software
22  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 
24 */
45 #ifndef _CACURL2FTS
46 #define _CACURL2FTS
47 #include "libGIFTAcURL2FTS/include/uses-declarations.h"
48 #include <string>
49 #include "libMRML/include/TID.h"
50 #include <iostream>
51 #include <fstream>
52 #include <map>
53 #ifdef HAS_HASH_MAP
54 #include <hash_map>
55 #else
56 #define hash_map map
57 #endif
58 #include "libMRML/include/CAccessorImplementation.h"
59 #include "libMRML/include/CMutex.h" // multithreading
60 class CXMLElement; // parameter of constructor
61 
67 private:
69  bool mWellConstructed;
70 protected:
74  TID mID;
78  string mURLPrefix;
94  mutable ifstream mURLToFeatureFile;
99  // this seems to be necessary
100  friend class CAcIFFileSystem;
101 public:
103  const string& getURLToFeatureFileName()const;
104 
122  CAcURL2FTS(const CXMLElement& inContentElement);
123 
129  virtual operator bool()const;
135  virtual int size()const;
142  pair<bool,string> URLToFFN(const string& inURL)const;
149  pair<bool,string> IDToFFN(TID inID)const;
151  friend void newStartURL2FTSElement(void *inUserData,
152  const char *inElementName,
153  const char **inAttributes);
155  friend void newEndURL2FTSElement(void *inUserData,
156  const char *inElementName);
157 };
158 
159 #endif
convenience typedef
Definition: CAccessorImplementation.h:49
An accessor to an inverted file.
Definition: CAcIFFileSystem.h:93
virtual int size() const
Give the number of elements stored in this accessor.
string mURLPrefix
the url-prefix for the image list
Definition: CAcURL2FTS.h:78
This class captures the structure of an XML element.
Definition: CXMLElement.h:51
const string & getURLToFeatureFileName() const
gives back the content of mURLToFeatureFileName
TID mID
the ID of the next element
Definition: CAcURL2FTS.h:74
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 fea...
pair< bool, string > IDToFFN(TID inID) const
gives the feature file name which corresponds to a given URL return value: pair of bool (does the fea...
friend void newStartURL2FTSElement(void *inUserData, const char *inElementName, const char **inAttributes)
we construct this with a little help from this friend
convenience typedef
Definition: CAccessorImplementation.h:65
friend void newEndURL2FTSElement(void *inUserData, const char *inElementName)
we construct this with a little help from this friend
string mURLToFeatureFileName
Name of the file that contains pairs of URL and the Feature file that belongs to the URL...
Definition: CAcURL2FTS.h:98
TID_string_map mIDToFFN
map from the id of an image to the name of the feature file for this image
Definition: CAcURL2FTS.h:92
CMutex mMutexURL2FTS
the mutex for multithreading the name is intended to be unique and immune against inheritance...
Definition: CAcURL2FTS.h:88
ifstream mURLToFeatureFile
URL -> FeatureFileName.
Definition: CAcURL2FTS.h:94
This class offers an abstraction from the locking method used.
Definition: CMutex.h:40
string mThumbnailURLPrefix
the thumbnail-url-prefix for the image list
Definition: CAcURL2FTS.h:82
CAccessorImplementation - a base class for everything accessing a GIFT database.
Definition: CAccessorImplementation.h:92
CAcURL2FTS(const CXMLElement &inContentElement)
Constructor: slurp in an url2fts file and fill the maps.
This accessor is a base class for accessors which use an URL2FTS file to implement the interface of t...
Definition: CAcURL2FTS.h:66
string_string_map mURLToFFN
map from the url of an image to the name of the feature file for this image
Definition: CAcURL2FTS.h:90

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