ANALYSIS/EventMixing/AliMixInputEventHandler.h

   1 //
   2 // Class AliMixEventInputHandler
   3 //
   4 // Mixing input handler prepare N events before UserExec
   5 // TODO example
   6 // author:
   7 //        Martin Vala (martin.vala@cern.ch)
   8 //
   9
  10 #ifndef ALIMIXINPUTEVENTHANDLER_H
  11 #define ALIMIXINPUTEVENTHANDLER_H
  12
  13 #include <TObjArray.h>
  14 #include <TArrayI.h>
  15
  16 #include <AliVEvent.h>
  17
  18 #include "AliMultiInputEventHandler.h"
  19
  20 class TChain;
  21 class AliMixEventPool;
  22 class AliMixInputHandlerInfo;
  23 class AliInputEventHandler;
  24 class AliMixInputEventHandler : public AliMultiInputEventHandler {
  25
  26 public:
  27    AliMixInputEventHandler(const Int_t size = 1, const Int_t mixNum = 1);
  28
  29    // From the interface
  30    virtual Bool_t  Init(Option_t *opt) { return AliMultiInputEventHandler::Init(opt); }
  31    virtual Bool_t  Init(TTree *tree, Option_t *opt);
  32    virtual Bool_t  Notify();
  33    virtual Bool_t  Notify(const char *path);
  34    virtual Bool_t  BeginEvent(Long64_t entry);
  35    virtual Bool_t  GetEntry();
  36    virtual Bool_t  FinishEvent();
  37
  38    // removing default impementation
  39    virtual void            AddInputEventHandler(AliVEventHandler */*inHandler*/);
  40
  41    void                    SetInputHandlerForMixing(const AliInputEventHandler *const inHandler);
  42    void                    SetEventPool(AliMixEventPool *const evPool) { fEventPool = evPool; }
  43
  44    AliMixEventPool        *GetEventPool() const { return fEventPool; }
  45    Int_t                   BufferSize() const { return fBufferSize; }
  46    Int_t                   NumberMixedTimes() const { return fNumberMixed; }
  47    Int_t                   MixNumber() const { return fMixNumber; }
  48    Long64_t                EntryAll() const { return fEntryCounter; }
  49    void                    UseDefaultProcess(Bool_t b = kTRUE) { fUseDefautProcess = b; }
  50    void                    DoMixExtra(Bool_t b = kTRUE) { fDoMixExtra = b; }
  51    void                    DoMixIfNotEnoughEvents(Bool_t b = kTRUE) { fDoMixIfNotEnoughEvents = b; }
  52    void                    SetMixNumber(const Int_t mixNum);
  53
  54    void                    SetCurrentBinIndex(Int_t const index) { fCurrentBinIndex = index; }
  55    void                    SetCurrentEntry(Long64_t const entry) { fCurrentEntry = entry ; }
  56    void                    SetCurrentEntryMain(Long64_t const entry) { fCurrentEntryMain = entry ; }
  57    void                    SetCurrentEntryMix(Long64_t const entry) { fCurrentEntryMix = entry ; }
  58    void                    SetNumberMixed(Int_t const index) { fNumberMixed = index; }
  59
  60    Int_t                   CurrentBinIndex() const { return fCurrentBinIndex; }
  61    Long64_t                CurrentEntry() const { return fCurrentEntry; }
  62    Long64_t                CurrentEntryMain() const { return fCurrentEntryMain; }
  63    Long64_t                CurrentEntryMix() const { return fCurrentEntryMix; }
  64    Int_t                   NumberMixed() const { return fNumberMixed; }
  65
  66    void                    SelectCollisionCandidates(UInt_t offlineTriggerMask = AliVEvent::kMB) {fOfflineTriggerMask = offlineTriggerMask;}
  67    Bool_t                  IsEventCurrentSelected();
  68    Bool_t                  IsMixingIfNotEnoughEvents() { return fDoMixIfNotEnoughEvents;}
  69
  70 protected:
  71
  72    TObjArray               fMixTrees;              // buffer of input handlers
  73    TArrayI                 fTreeMap;               // tree map
  74    AliMixInputHandlerInfo *fMixIntupHandlerInfoTmp;//! mix input handler info full chain
  75    Long64_t                fEntryCounter;          // entry counter
  76    AliMixEventPool        *fEventPool;             // event pool
  77    Int_t                   fNumberMixed;           // number of mixed events with current event
  78    Int_t                   fMixNumber;             // user's mix number request
  79
  80 private:
  81
  82    Bool_t                  fUseDefautProcess;      // use default process
  83    Bool_t                  fDoMixExtra;            // mix extra events to get enough combinations
  84    Bool_t                  fDoMixIfNotEnoughEvents;// mix events if they dont have enough events to mix
  85
  86    // mixing info
  87    Long64_t fCurrentEntry;       //! current entry number (adds 1 for every event processed on each worker)
  88    Long64_t fCurrentEntryMain;   //! current entry in chain of processed files
  89    Long64_t fCurrentEntryMix;    //! current mixed entry in chain of processed files
  90    Int_t    fCurrentBinIndex;    //! current bin index
  91
  92    UInt_t fOfflineTriggerMask;   //  Task processes collision candidates only
  93
  94    virtual Bool_t          MixStd();
  95    virtual Bool_t          MixBuffer();
  96    virtual Bool_t          MixEventsMoreTimesWithOneEvent();
  97    virtual Bool_t          MixEventsMoreTimesWithBuffer();
  98
  99    void                    UserExecMixAllTasks(Long64_t entryCounter, Int_t idEntryList, Long64_t entryMainReal, Long64_t entryMixReal, Int_t numMixed);
 100
 101    AliMixInputEventHandler(const AliMixInputEventHandler &handler);
 102    AliMixInputEventHandler &operator=(const AliMixInputEventHandler &handler);
 103
 104    ClassDef(AliMixInputEventHandler, 3)
 105 };
 106
 107 #endif