VFATFrameCollection.h

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/****************************************************************************
*
* This is a part of the TOTEM offline software.
* Authors: 
*   Jan Kašpar (jan.kaspar@gmail.com) 
*    
****************************************************************************/


#ifndef EventFilter_CTPPSRawToDigi_VFATFrameCollection
#define EventFilter_CTPPSRawToDigi_VFATFrameCollection

#include "CondFormats/CTPPSReadoutObjects/interface/TotemFramePosition.h"

#include "EventFilter/CTPPSRawToDigi/interface/VFATFrame.h"

#include <string>

class VFATFrameCollection 
{
  public:
    VFATFrameCollection() {}
    virtual ~VFATFrameCollection() {}

    virtual const VFATFrame* GetFrameByID(unsigned int ID) const = 0;

    virtual const VFATFrame* GetFrameByIndex(TotemFramePosition index) const = 0;

    virtual const VFATFrame* GetFrameByIndexID(TotemFramePosition index, unsigned int ID);

    virtual unsigned int Size() const = 0;

    virtual bool Empty() const = 0;

    typedef std::pair<TotemFramePosition, const VFATFrame*> value_type;

    class Iterator {
      protected:
        value_type value;

        const VFATFrameCollection* collection;

      public:
        Iterator(const VFATFrameCollection* c = nullptr) : collection(c)
          { if (collection) value = collection->BeginIterator(); }

        TotemFramePosition Position()
          { return value.first; }

        const VFATFrame* Data()
          { return value.second; }

        void Next()
          { value = collection->NextIterator(value); }

        bool IsEnd()
          { return collection->IsEndIterator(value); }
    };
    
  protected:
    virtual value_type BeginIterator() const = 0;

    virtual value_type NextIterator(const value_type&) const = 0;

    virtual bool IsEndIterator(const value_type&) const = 0;
};

#endif