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/PPSObjects/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