Layer.hh

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#pragma once

#include <string>
#include <map>
#include <vector>
#include <algorithm>

#include "Params.hh"

class OCTETSTRING; 
class BITSTRING;   
class CHARSTRING;  
class INTEGER;     

class Layer {
  std::vector<Layer*> upperLayers; 
  std::vector<Layer*> lowerLayers; 

protected:
  std::string type; 

public: 

  explicit Layer() : upperLayers(), lowerLayers(), type(std::string("")) { };

  explicit Layer(const std::string& p_type) : upperLayers(), lowerLayers(), type(std::string(p_type.begin(), p_type.end())) { };

  virtual ~Layer() {
    // Double linked list, only remove layers in lowerLayers from the lowest one
    std::for_each(lowerLayers.rbegin(), lowerLayers.rend(), [](Layer* it) { delete it; } );
    lowerLayers.clear();
    upperLayers.clear();
  };

  void deleteLayer() { };

public: 

  inline void addUpperLayer(Layer* p_layer) { 
    if (p_layer != NULL) {
      upperLayers.push_back(p_layer);
      p_layer->lowerLayers.push_back(this);
    };
  };

  void removeUpperLayer(Layer* p_layer) {  };

  virtual void sendData(OCTETSTRING& p_data, Params& p_params) { };

  virtual void receiveData(OCTETSTRING& p_data, Params& p_params) { }

  inline const std::string& to_string() const { return type; };

protected: 
  inline void toAllLayers(std::vector<Layer*>&layers, OCTETSTRING& data, Params& params) {
    for (std::vector<Layer*>::const_iterator it = layers.cbegin(); it != layers.cend(); ++it) {
      Layer * p = *it;
      p->receiveData(data, params); // FIXME BUG I 
    } // End of 'for' statement
  };

  inline void receiveToAllLayers(OCTETSTRING& data, Params& params) {
    for (std::vector<Layer*>::const_iterator it = upperLayers.cbegin(); it != upperLayers.cend(); ++it) {
      Layer * p = *it;
      p->receiveData(data, params);
    } // End of 'for' statement
  };

  inline void sendToAllLayers(OCTETSTRING& data, Params& params)  {
    for (std::vector<Layer*>::const_iterator it = lowerLayers.cbegin(); it != lowerLayers.cend(); ++it) {
      Layer * p = *it;
      p->sendData(data, params);
    } // End of 'for' statement
  };
}; // End of class Layer