Line data    Source code

       1             : /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
       2             :  * See cxx source for full Copyright notice                               */
       3             : 
       4             : // $Id$
       5             : // $MpId: AliMpDataStreams.h,v 1.10 2006/05/24 13:58:07 ivana Exp $
       6             : 
       7             : /// \ingroup basic
       8             : /// \class AliMpDataStreams
       9             : /// \brief Mapping data streams provider
      10             : ///
      11             : /// The class provides input streams for mapping data;
      12             : /// the input streams can be represented either by the
      13             : /// data files or by string streams filled from string map (AliMpDataMap).
      14             : /// The string map is set from outside (AliMpCDB) and is not
      15             : /// deleted in this class.
      16             : /// The data streams returned by CreateDataStream() function
      17             : /// must be deleted by the client code.
      18             : ///
      19             : /// The selection between files and string streams is 
      20             : /// done in the constructor:
      21             : /// if data map is provided, reading is performed from streams,
      22             : /// otherwise reading is performed from file.
      23             : /// User can also use the set function to select reading
      24             : /// from files also when the data map is provided: \n
      25             : /// void SetReadFromFiles();
      26             : ///
      27             : /// \author Ivana Hrivnacova; IPN Orsay
      28             : 
      29             : #ifndef ALI_MP_DATA_STREAMS_H
      30             : #define ALI_MP_DATA_STREAMS_H
      31             : 
      32             : #include "AliMpDataMap.h"
      33             : 
      34             : #include <TObject.h>
      35             : #include <TString.h>
      36             : 
      37             : #include <fstream>
      38             : #include <sstream>
      39             : 
      40             : //class TMap;
      41             : class AliMpDataMap;
      42             : 
      43             : class AliMpDataStreams : public TObject
      44             : {
      45             :   public:
      46             :     AliMpDataStreams(AliMpDataMap* map = 0x0);
      47             :     AliMpDataStreams(TRootIOCtor* ioCtor);
      48             :     virtual ~AliMpDataStreams();
      49             :   
      50             :     // methods
      51             :     istream& CreateDataStream(const TString& path) const; 
      52             :     Bool_t   IsDataStream(const TString& path) const; 
      53             :   
      54             :     // set methods
      55             :     void   SetReadFromFiles();
      56             :     Bool_t GetReadFromFiles() const;
      57             : 
      58             :   private: 
      59             :     /// Not implemented
      60             :     AliMpDataStreams(const AliMpDataStreams& right);
      61             :     /// Not implemented
      62             :     AliMpDataStreams& operator=(const AliMpDataStreams& right);    
      63             : 
      64             :     // methods
      65             :     void CutDataPath(string& dataPath) const;
      66             : 
      67             :     // data members
      68             :     AliMpDataMap*  fMap;           ///< data map
      69             :     Bool_t         fReadFromFiles; ///< option for reading data from files
      70             :     
      71       17508 :   ClassDef(AliMpDataStreams, 1) //File names and paths 
      72             : };  
      73             : 
      74             : #endif //ALI_MP_DATA_STREAMS_H