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