NavigationSchool.h

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#ifndef DetLayers_NavigationSchool_H
#define DetLayers_NavigationSchool_H
 
#include <vector>
 
#include "NavigableLayer.h"
#include "DetLayer.h"
 
#include <iostream>
#include <typeinfo>
 
class NavigationSchool {
public:
  NavigationSchool() : theAllDetLayersInSystem(nullptr) {
    //    std::cout << "NVSH: C "<< this << std::endl;
  }
 
  virtual ~NavigationSchool() {}
 
  typedef std::vector<NavigableLayer*> StateType;
 
  virtual StateType navigableLayers() = 0;
 
  template <typename... Args>
  std::vector<const DetLayer*> nextLayers(const DetLayer& detLayer, Args&&... args) const {
    assert(detLayer.seqNum() >= 0);
    auto nl = theAllNavigableLayer[detLayer.seqNum()];
    return nl ? nl->nextLayers(std::forward<Args>(args)...) : std::vector<const DetLayer*>();
  }
 
  template <typename... Args>
  std::vector<const DetLayer*> compatibleLayers(const DetLayer& detLayer, Args&&... args) const {
    auto nl = theAllNavigableLayer[detLayer.seqNum()];
    return nl ? nl->compatibleLayers(std::forward<Args>(args)...) : std::vector<const DetLayer*>();
  }
 
protected:
  void setState(const StateType& state) {
    //  std::cout << "NVSH: set "<< this << ' ' << typeid(*this).name()
    //        << ' ' << state.size() << ' ' << theAllNavigableLayer.size() << std::endl;
 
    for (auto nl : state) {
      if (!nl)
        continue;
      theAllNavigableLayer[nl->detLayer()->seqNum()] = nl;
      nl->setSchool(this);
    }
  }
 
  // index correspond to seqNum of DetLayers
  StateType theAllNavigableLayer;
 
  // will be obsoleted together with NAvigationSetter
public:
  const std::vector<const DetLayer*>& allLayersInSystem() const { return *theAllDetLayersInSystem; }
 
protected:
  const std::vector<const DetLayer*>* theAllDetLayersInSystem;
};
 
#endif  // NavigationSchool_H