CbmFindPrimaryVertexEvents.h

/** @file CbmFindPrimaryVertexEvents.h
 ** @author Volker Friese <v.friese@gsi.de>
 ** @since 16.06.2014
 ** @date 02.11.2016
 **/

#ifndef CBMFINDPRIMARYVERTEXEVENTS_H
#define CBMFINDPRIMARYVERTEXEVENTS_H 1


#include "FairTask.h"
#include "TStopwatch.h"

class TClonesArray;
class CbmPrimaryVertexFinder;
class CbmVertex;


/** CbmFindPrimaryVertexEvents
 ** @brief Task class for PV finding.
 ** @author V.Friese <v.friese@gsi.de>
 **
 ** Input: List of CbmStsTracks
 ** Output: CbmVertex
 **
 ** Uses as vertex finding algorithm classes derived from
 ** CbmPrimaryVertexFinder.
 **/
class CbmFindPrimaryVertexEvents : public FairTask {

public:
  /** Default constructor **/
  CbmFindPrimaryVertexEvents();


  /** Standard constructor
   *@param pvFinder  Pointer to concrete vertex finder
   **/
  CbmFindPrimaryVertexEvents(CbmPrimaryVertexFinder* pvFinder);

  // Prevent auto copy constructor and assignment operator
  CbmFindPrimaryVertexEvents(const CbmFindPrimaryVertexEvents&) = delete;
  CbmFindPrimaryVertexEvents&
  operator=(const CbmFindPrimaryVertexEvents&) = delete;

  /** Constructor with name and title
   **
   *@param name      Name of task
   *@param title     Title of task
   *@param pvFinder  Pointer to vertex finder concrete object
   **/
  CbmFindPrimaryVertexEvents(const char* name,
                             const char* title,
                             CbmPrimaryVertexFinder* pvFinder);


  /** Destructor **/
  virtual ~CbmFindPrimaryVertexEvents();


  /** Initialisation **/
  virtual InitStatus Init();


  /** Task execution **/
  virtual void Exec(Option_t* opt);


  /** Finish **/
  virtual void Finish();


private:
  TStopwatch fTimer;                ///< ROOT stopwatch
  CbmPrimaryVertexFinder* fFinder;  ///< Concrete finder instance
  TClonesArray* fEvents;            //! event array
  TClonesArray* fTracks;            //! track array
  CbmVertex* fPrimVert;

  Int_t fNofEvents;   ///< Total number of events processed
  Double_t fTimeTot;  ///< Total execution time [s]


  ClassDef(CbmFindPrimaryVertexEvents, 1);
};

#endif