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CAcURL2FTS.h

00001 /* -*- mode: c++ -*- 
00002 */
00003 /* 
00004 
00005     GIFT, a flexible content based image retrieval system.
00006     Copyright (C) 1998, 1999, 2000, 2001, 2002, CUI University of Geneva
00007 
00008     This program is free software; you can redistribute it and/or modify
00009     it under the terms of the GNU General Public License as published by
00010     the Free Software Foundation; either version 2 of the License, or
00011     (at your option) any later version.
00012 
00013     This program is distributed in the hope that it will be useful,
00014     but WITHOUT ANY WARRANTY; without even the implied warranty of
00015     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016     GNU General Public License for more details.
00017 
00018     You should have received a copy of the GNU General Public License
00019     along with this program; if not, write to the Free Software
00020     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00021 
00022 */
00043 #ifndef _CACURL2FTS
00044 #define _CACURL2FTS
00045 #include "libGIFTAcURL2FTS/include/uses-declarations.h"
00046 #include <string>
00047 #include "libMRML/include/TID.h"
00048 #include <iostream>
00049 #include <fstream>
00050 #include <map>
00051 #ifdef HAS_HASH_MAP
00052 #include <hash_map>
00053 #else
00054 #define hash_map map
00055 #endif
00056 #include "libMRML/include/CAccessorImplementation.h"
00057 #include "libMRML/include/CMutex.h" // multithreading
00058 class CXMLElement;  // parameter of constructor
00059 
00064 class CAcURL2FTS:public CAccessorImplementation{
00065 private:
00067   bool mWellConstructed;
00068 protected:
00072   TID mID;
00076   string mURLPrefix;
00080   string mThumbnailURLPrefix;
00086   CMutex mMutexURL2FTS;
00088   string_string_map mURLToFFN;
00090   TID_string_map mIDToFFN;
00092   mutable ifstream mURLToFeatureFile;
00096   string mURLToFeatureFileName;
00097   // this seems to be necessary
00098   friend class CAcIFFileSystem;
00099 public:
00101   const string& getURLToFeatureFileName()const;
00102 
00120   CAcURL2FTS(const CXMLElement& inContentElement);
00121   
00127   virtual operator bool()const;
00133   virtual int size()const;
00140   pair<bool,string> URLToFFN(const string& inURL)const;
00147   pair<bool,string> IDToFFN(TID inID)const;
00149   friend void newStartURL2FTSElement(void *inUserData, 
00150                                      const char *inElementName, 
00151                                      const char **inAttributes);
00153   friend void newEndURL2FTSElement(void *inUserData, 
00154                                    const char *inElementName);
00155 };
00156 
00157 #endif

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