/data/refman/pasoursint/CMSSW_6_1_1/src/EventFilter/StorageManager/interface/MonitorCollection.h

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// $Id: MonitorCollection.h,v 1.6 2011/03/07 15:31:32 mommsen Exp $

#ifndef EventFilter_StorageManager_MonitorCollection_h
#define EventFilter_StorageManager_MonitorCollection_h

#include "xdata/Serializable.h"

#include "EventFilter/StorageManager/interface/MonitoredQuantity.h"
#include "EventFilter/StorageManager/interface/Utils.h"

#include <string>


namespace stor {

  class MonitorCollection
  {
  public:

    typedef std::vector< std::pair<std::string, xdata::Serializable*> > InfoSpaceItems;


    explicit MonitorCollection(const utils::Duration_t& updateInterval);


    // A pure virtual destructor results in a missing symbol
    virtual ~MonitorCollection() {};

    void appendInfoSpaceItems(InfoSpaceItems&);

    void calculateStatistics(const utils::TimePoint_t& now);

    void updateInfoSpaceItems();

    void reset(const utils::TimePoint_t& now);

    
  protected:

    virtual void do_calculateStatistics() = 0;
    virtual void do_reset() = 0;
    virtual void do_appendInfoSpaceItems(InfoSpaceItems&) {};
    virtual void do_updateInfoSpaceItems() {};


  private:

    //Prevent copying of the MonitorCollection
    MonitorCollection(MonitorCollection const&);
    MonitorCollection& operator=(MonitorCollection const&);

    const utils::Duration_t updateInterval_;
    utils::TimePoint_t lastCalculateStatistics_;
    bool infoSpaceUpdateNeeded_;

  };
  
} // namespace stor

#endif // EventFilter_StorageManager_MonitorCollection_h