Segment.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
#pragma once
 
#include <tracking/dataobjects/FullSecID.h>
 
// C++-std:
#include <string>
 
namespace Belle2 {
  template<class HitType>
  class Segment {
  protected:
    HitType* m_outerHit = nullptr;
 
    HitType* m_innerHit = nullptr;
 
    const std::int64_t m_identifier = -1;
 
    FullSecID::BaseType m_outerSector;
 
    FullSecID::BaseType m_innerSector;
 
  public:
    Segment():
      m_outerSector(FullSecID()),
      m_innerSector(FullSecID())
    {}
 
 
    Segment(FullSecID::BaseType outerSector, FullSecID::BaseType innerSector, HitType* outerNode, HitType* innerNode):
      m_outerHit(outerNode),
      m_innerHit(innerNode),
      m_identifier(static_cast<std::int64_t>(outerNode->getID()) << 32 | static_cast<std::int64_t>
                   (innerNode->getID())), // Use int TrackNode IDs to construct int Segment ID
      m_outerSector(outerSector),
      m_innerSector(innerSector)
    {}
 
    bool operator==(const Segment& b) const
    {
      return (*getInnerHit() == *b.getInnerHit() and * getOuterHit() == *b.getOuterHit());
    }
 
 
    std::int64_t getID() const { return m_identifier; }
 
    std::string getName() const
    {
      if (m_identifier >= 0)
        return "Out: " + m_outerHit->getName() + ")" + ",\nin: " + m_innerHit->getName();
      else
        return "Out: missing,\nin: missing";
    }
 
    inline const HitType* getInnerHit() const { return m_innerHit; }
 
 
    inline const HitType* getOuterHit() const { return m_outerHit; }
 
 
    inline FullSecID::BaseType getInnerSecID() const { return m_innerSector; }
 
 
    inline FullSecID::BaseType getOuterSecID() const { return m_outerSector; }
  };
} //Belle2 namespace