#ifndef HWALLHISTBOOKER_H
#define HWALLHISTBOOKER_H

#include "hparcond.h"

class TList;
class TString;

class HOnlineWallHistFiller;
class HWallDetector;
class HParamList;

/** Wall Histogram Booker.
 * The container keeps the list of histograms (pool)
 * and the list of activehistograms and the HOnlineWallHistFiller,
 * which is responsible of booking, creating and filling
 * of the histograms. All actions on the histograms
 * have to through HOnlineWallHistBooker and HOnlineWallHistFiller.
*/

class HOnlineWallHistBooker : public HParCond {

protected:
    HWallDetector* fWall; //!
    static TList* wallHistpool;    //!< list of pool histograms
    static TList* wallActiveHists; //!< list of active histograms
    static HOnlineWallHistBooker* fWallHistBooker;  //!< pointer to self
    static HOnlineWallHistFiller* wallfiller;       //!< pointer to internal HOnlineWallHistFiller
public:
    HOnlineWallHistBooker(const Char_t* name   ="WallHistBooker",
		      const Char_t* title  ="parameters for Wall hists",
		      const Char_t* context="WallHistBookerProduction");
    ~HOnlineWallHistBooker();
    /// get pointer to container
    static HOnlineWallHistBooker* getExObject();
    /// get pointer to container, if
    /// it does not exist, it will be created
    static HOnlineWallHistBooker* getObject();
    /// init the container standalone (no rtdb)
    Bool_t initStandAlone();
    /// get list of active histograms
    TList* getListOfActiveHists(){return wallActiveHists;}
    /// get list of pool histograms
    TList* getListOfHists()      {return wallHistpool;}
    /// reset histograms of active list
    void   resetActiveList(Int_t level,Int_t count);
    /// put parameter to lsit of HParCond
    void   putParams(HParamList*);
    /// ge parameter from list of HParCond
    Bool_t getParams(HParamList*);
    /// reset the container
    void   clear();
    Bool_t check();
    /// print parameter to the screen
    void   printParam(void);
    /// print status of the container to the screen
    void   printStatus(void);
    /// get pointer t the internal HOnlineWallHistFiller
    HOnlineWallHistFiller* getWallFiller(){return wallfiller;}
    ClassDef(HOnlineWallHistBooker,1) // Container for the Wall Hists
};

#endif  /*!HWALLHISTBOOKER_H*/