7 //Reader Base class (reads particles and tracks and
8 //puts it to the AliHBTRun objects
9 //Piotr.Skowronski@cern.ch
13 class AliHBTParticleCut;
18 class AliHBTReader: public TNamed
22 AliHBTReader(TObjArray*);
23 virtual ~AliHBTReader();
26 virtual void Rewind() = 0;
28 virtual Bool_t ReadsTracks() const = 0;
29 virtual Bool_t ReadsParticles() const = 0;
31 void AddParticleCut(AliHBTParticleCut* cut);
33 virtual Int_t Read(AliHBTRun* particles, AliHBTRun *tracks);
35 virtual AliHBTEvent* GetParticleEvent() {return fParticlesEvent;}//can not be const because position randomizer overloads it
36 virtual AliHBTEvent* GetTrackEvent() {return fTracksEvent;}//
38 virtual AliHBTEvent* GetParticleEvent(Int_t);
39 virtual AliHBTEvent* GetTrackEvent(Int_t);
41 virtual Int_t GetNumberOfPartEvents();
42 virtual Int_t GetNumberOfTrackEvents();
44 void SetDirs(TObjArray* dirs){fDirs = dirs;} //sets array directories names
45 void SetEventBuffering(Bool_t flag){fBufferEvents = flag;}
46 void SetBlend(Bool_t flag = kTRUE){fBlend=flag;}
47 virtual Int_t GetNumberOfDirs() const {return (fDirs)?fDirs->GetEntries():0;}
48 void ReadEventsFromTo(Int_t first,Int_t last){fFirst = first; fLast = last;}
49 virtual TH1I* GetTrackCounter() const {return fTrackCounter;}
50 virtual void WriteTrackCounter() const;
53 TObjArray* fCuts;//array with particle cuts
54 TObjArray* fDirs;//arry with directories to read data from
56 Int_t fCurrentEvent;//! number of current event in current directory
57 Int_t fCurrentDir;//! number of current directory
59 Int_t fNEventsRead;//!total
61 AliHBTEvent* fTracksEvent; //! tracks read from current event
62 AliHBTEvent* fParticlesEvent; //! particles read from current event
64 AliHBTRun* fParticles; //!simulated particles
65 AliHBTRun* fTracks; //!reconstructed tracks (particles)
67 Bool_t fIsRead;//!flag indicating if the data are already read
68 Bool_t fBufferEvents;//flag indicating if the data should be bufferred
70 Bool_t fBlend;// flag indicating if randomly change positions of the particles after reading
72 Int_t fFirst;//first event to return (all are before are skipped)
75 TH1I* fTrackCounter; //histogram with number of tracks read
77 virtual Int_t ReadNext() = 0; //this methods reads next event and put result in fTracksEvent and/or fParticlesEvent
78 Bool_t Pass(AliHBTParticle*);
79 Bool_t Pass(Int_t pid);
82 TString& GetDirName(Int_t);
87 ClassDef(AliHBTReader,4)//version 2 - TNamed as parental class
88 //version 3 - Blending added