/******************************************************************************
*  $Id: CbmRichRingFinder.h,v 1.6 2006/04/17 22:11:04 sgorboun Exp $
*
*  Class  : CbmRichRingFinder
*  Description : Abstract base class for concrete RICH ring finding algorithm.
*                Each derived class must implement the method DoFind.
*
*  Author : Supriya Das
*  E-mail : S.Das@gsi.de
*
*******************************************************************************
*  $Log: CbmRichRingFinder.h,v $
*  Revision 1.6  2006/04/17 22:11:04  sgorboun
*  changes in L1 ENN Ring Finder
*
*  Revision 1.5  2006/01/26 09:48:34  hoehne
*  Array of projected tracks added for track-based ring finders
*
*  Revision 1.4  2006/01/19 11:12:48  hoehne
*  initial revision: new abstract base class for RingFinders
*
*******************************************************************************/

#ifndef CBM_RICH_RING_FINDER
#define CBM_RICH_RING_FINDER 1

#include "TObject.h"

class TClonesArray;


class CbmRichRingFinder : public TObject
{

 public:

  /** Default constructor **/
 CbmRichRingFinder() : TObject(), fVerbose(0) { };


  /** Destructor **/
  virtual ~CbmRichRingFinder() { };


  /** Virtual method Init. If needed, to be implemented in the
   ** concrete class. Else no action.
   **/
  virtual void Init() { };


  /** Abstract method DoFind. To be implemented in the concrete class.
   ** Task: Read the hit array and fill the ring array,
   ** pointers to which are given as arguments
   **
   *@param rHitArray    Array of RICH hits
   *@param rProjArray   Array of projected tracks (for track based finders)
   *@param rRingArray   Array of CbmRichRing
   *@value Number of rings created
   **/
  virtual Int_t DoFind(TClonesArray* rHitArray, TClonesArray* rProjArray,
		       TClonesArray* rRingArray) = 0;


  /** Set verbosity 
   *@param verbose   Verbosity level
   **/
  void SetVerbose(Int_t verbose) { fVerbose = verbose; };


 protected:

  Int_t fVerbose;      // Verbosity level

 private:

  CbmRichRingFinder(const CbmRichRingFinder&);
  CbmRichRingFinder& operator=(const CbmRichRingFinder&);

  ClassDef(CbmRichRingFinder,1);

};

#endif