ANALYSIS/AliAnalysisManager.h

   1 #ifndef ALIANALYSISMANAGER_H
   2 #define ALIANALYSISMANAGER_H
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 /* $Id$ */
   7 // Author: Andrei Gheata, 31/05/2006
   8
   9 //==============================================================================
  10 //   AliAnalysysManager - Manager analysis class. Allows creation of several
  11 // analysis tasks and data containers storing their input/output. Allows
  12 // connecting/chaining tasks via shared data containers. Serializes the current
  13 // event for all tasks depending only on initial input data.
  14 //==============================================================================
  15
  16 #ifndef ROOT_TNamed
  17 #include <TNamed.h>
  18 #endif
  19
  20 class TClass;
  21 class TTree;
  22 class TFile;
  23 class AliAnalysisSelector;
  24 class AliAnalysisDataContainer;
  25 class AliAnalysisTask;
  26 class AliVEventHandler;
  27 class AliVEventPool;
  28
  29
  30 class AliAnalysisManager : public TNamed {
  31
  32 public:
  33
  34 enum EAliAnalysisContType {
  35    kExchangeContainer  = 0,
  36    kInputContainer   = 1,
  37    kOutputContainer  = 2
  38 };
  39
  40 enum EAliAnalysisExecMode {
  41    kLocalAnalysis    = 0,
  42    kProofAnalysis    = 1,
  43    kGridAnalysis     = 2,
  44    kMixingAnalysis   = 3
  45 };
  46
  47 enum EAliAnalysisFlags {
  48    kEventLoop        = BIT(14),
  49    kDisableBranches  = BIT(15),
  50    kUseDataSet       = BIT(16)
  51 };
  52
  53    AliAnalysisManager(const char *name = "mgr", const char *title="");
  54    virtual            ~AliAnalysisManager();
  55
  56    AliAnalysisManager(const AliAnalysisManager& other);
  57    AliAnalysisManager& operator=(const AliAnalysisManager& other);
  58
  59    // Management
  60    void                StartAnalysis(const char *type="local", TTree *tree=0, Long64_t nentries=1234567890, Long64_t firstentry=0);
  61    void                StartAnalysis(const char *type, const char *dataset, Long64_t nentries=1234567890, Long64_t firstentry=0);
  62
  63    virtual void        Init(TTree *tree);
  64    virtual Bool_t      Notify();
  65    virtual void        SlaveBegin(TTree *tree);
  66    virtual Bool_t      ProcessCut(Long64_t entry) {return Process(entry);}
  67    virtual Bool_t      Process(Long64_t entry);
  68    virtual Int_t       GetEntry(Long64_t entry, Int_t getall = 0);
  69    TFile              *OpenProofFile(const char *name, const char *option);
  70    void                PackOutput(TList *target);
  71    void                UnpackOutput(TList *source);
  72    virtual void        Terminate();
  73
  74    // Getters/Setters
  75    static AliAnalysisManager *GetAnalysisManager() {return fgAnalysisManager;}
  76    TObjArray          *GetContainers() const {return fContainers;}
  77    UInt_t              GetDebugLevel() const {return fDebug;}
  78    TObjArray          *GetInputs() const     {return fInputs;}
  79    TObjArray          *GetOutputs() const    {return fOutputs;}
  80    TObjArray          *GetTasks() const      {return fTasks;}
  81    TObjArray          *GetTopTasks() const   {return fTopTasks;}
  82    TTree              *GetTree() const       {return fTree;}
  83    TObjArray          *GetZombieTasks() const {return fZombies;}
  84    Long64_t            GetCurrentEntry() const {return fCurrentEntry;}
  85    EAliAnalysisExecMode
  86                        GetAnalysisType() const {return fMode;}
  87    Bool_t              IsUsingDataSet() const  {return TObject::TestBit(kUseDataSet);}
  88
  89    void                SetAnalysisType(EAliAnalysisExecMode mode) {fMode = mode;}
  90    void                SetCurrentEntry(Long64_t entry) {fCurrentEntry = entry;}
  91    void                SetDebugLevel(UInt_t level) {fDebug = level;}
  92    void                SetSpecialOutputLocation(const char *location) {fSpecialOutputLocation = location;}
  93    void                SetDisableBranches(Bool_t disable=kTRUE) {TObject::SetBit(kDisableBranches,disable);}
  94    void                SetCollectSysInfoEach(Int_t nevents=0) {fNSysInfo = nevents;}
  95    void                SetInputEventHandler(AliVEventHandler*  handler)  {fInputEventHandler   = handler;}
  96    void                SetOutputEventHandler(AliVEventHandler*  handler) {fOutputEventHandler  = handler;}
  97    void                SetMCtruthEventHandler(AliVEventHandler* handler) {fMCtruthEventHandler = handler;}
  98    void                SetEventPool(AliVEventPool* epool) {fEventPool = epool;}
  99    void                SetNSysInfo(Long64_t nevents) {fNSysInfo = nevents;}
 100    void                SetSelector(AliAnalysisSelector *sel) {fSelector = sel;}
 101    AliVEventHandler*   GetInputEventHandler()   {return fInputEventHandler;}
 102    AliVEventHandler*   GetOutputEventHandler()  {return fOutputEventHandler;}
 103    AliVEventHandler*   GetMCtruthEventHandler() {return fMCtruthEventHandler;}
 104    AliVEventPool*      GetEventPool()           {return fEventPool;}
 105
 106    // Container handling
 107    AliAnalysisDataContainer *CreateContainer(const char *name, TClass *datatype,
 108                        EAliAnalysisContType type     = kExchangeContainer,
 109                        const char          *filename = NULL);
 110
 111    // Including tasks and getting them
 112    void                 AddTask(AliAnalysisTask *task);
 113    AliAnalysisTask     *GetTask(const char *name) const;
 114
 115    // Connecting data containers to task inputs/outputs
 116    Bool_t               ConnectInput(AliAnalysisTask *task, Int_t islot,
 117                                      AliAnalysisDataContainer *cont);
 118    Bool_t               ConnectOutput(AliAnalysisTask *task, Int_t islot,
 119                                      AliAnalysisDataContainer *cont);
 120    // Garbage collection
 121    void                 CleanContainers();
 122
 123    // Analysis initialization and execution, status
 124    Bool_t               InitAnalysis();
 125    Bool_t               IsInitialized() const {return fInitOK;}
 126    Bool_t               IsEventLoop() const {return TObject::TestBit(kEventLoop);}
 127    void                 ResetAnalysis();
 128    void                 ExecAnalysis(Option_t *option="");
 129    void                 FinishAnalysis();
 130    void                 PrintStatus(Option_t *option="all") const;
 131
 132 protected:
 133    void                 ImportWrappers(TList *source);
 134    void                 SetEventLoop(Bool_t flag=kTRUE) {TObject::SetBit(kEventLoop,flag);}
 135
 136 private:
 137    TTree                  *fTree;                //! Input tree in case of TSelector model
 138    AliVEventHandler       *fInputEventHandler;   //  Optional common input  event handler
 139    AliVEventHandler       *fOutputEventHandler;  //  Optional common output event handler
 140    AliVEventHandler       *fMCtruthEventHandler; //  Optional common MC Truth event handler
 141    AliVEventPool          *fEventPool;           //  Event pool for mixing analysis
 142    Long64_t                fCurrentEntry;        //! Current processed entry in the tree
 143    Long64_t                fNSysInfo;            // Event frequency for collecting system information
 144    EAliAnalysisExecMode    fMode;                // Execution mode
 145    Bool_t                  fInitOK;              // Initialisation done
 146    UInt_t                  fDebug;               // Debug level
 147    TString                 fSpecialOutputLocation; // URL/path where the special outputs will be copied
 148    TObjArray              *fTasks;               // List of analysis tasks
 149    TObjArray              *fTopTasks;            // List of top tasks
 150    TObjArray              *fZombies;             // List of zombie tasks
 151    TObjArray              *fContainers;          // List of all containers
 152    TObjArray              *fInputs;              // List of containers with input data
 153    TObjArray              *fOutputs;             // List of containers with results
 154    AliAnalysisSelector    *fSelector;            //! Current selector
 155
 156    static AliAnalysisManager *fgAnalysisManager; //! static pointer to object instance
 157    ClassDef(AliAnalysisManager,3)  // Analysis manager class
 158 };
 159 #endif