Component.hpp

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// ANNA - Anna is Not Nothingness Anymore                                                         //
//                                                                                                //
// (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
//                                                                                                //
// See project site at http://redmine.teslayout.com/projects/anna-suite                           //
// See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //


#ifndef anna_app_Component_hpp
#define anna_app_Component_hpp

#include <vector>
#include <anna/core/util/Component.hpp>
#include <anna/app/Application.hpp>

namespace anna {

namespace xml {
class Node;
}

namespace app {

class Component : public anna::Component {
public:
  virtual ~Component();

  void attach() noexcept(false);

  virtual std::string asString() const ;

  virtual xml::Node* asXML(xml::Node* parent) const ;

protected:
  struct State { enum _v { Stopped, Starting, Running }; };

  explicit Component(const char* className);

  State::_v getState() const { return a_state; }

  void addPredecessor(const char* componentName) ;

  void initialize() noexcept(false);

  void stop() { a_state = State::Stopped; do_stop(); }

  virtual void kill() { stop(); }

private:
  typedef std::vector <std::string>::iterator iterator;

  State::_v a_state;
  std::vector <std::string> a_predecessors;

  Component(const Component& other);
  iterator begin() { return a_predecessors.begin(); }
  iterator end() { return a_predecessors.end(); }
  const std::string& data(iterator& ii) { return *ii; }

  virtual void do_initialize() noexcept(false) = 0;

  virtual void do_stop()  = 0;

  virtual void do_cloneParent() noexcept(false) { ; }

  virtual void do_cloneChild() noexcept(false) { ; }

  friend void Application::startComponents() noexcept(false);
  friend void Application::stopComponents() noexcept(false);
  friend void Application::attach(Component*) noexcept(false);
  friend Application& Application::clone() noexcept(false);
};

}
}

#endif