graph_action.h

#ifndef GRAPH_ACTION_H_
#define GRAPH_ACTION_H_

#include "graph_filter.h"
#include "assert.h"

template<typename GraphType>
class GraphAction {
  public:
    typedef typename GraphType::node_value_type V_type;
    typedef typename GraphType::edge_value_type E_type;
    typedef typename GraphType::index_type_t index_type_t;

    GraphAction(GraphFilter<GraphType>* filter) :
        filter_(filter) {
      assert(filter != 0);
    }
    
    GraphAction(GraphAction<GraphType>& copy) : 
        filter_(copy.filter()->clone()) {
    }
    
    virtual ~GraphAction() {
      delete filter_;
    }

    GraphFilter<GraphType>* filter() {
      return filter_;
    }

    virtual bool operator() (E_type edge) = 0;

     virtual bool operator() (V_type node) = 0;

    template<typename P1, typename P2>
    bool operator() (std::pair<P1, P2>& m) {
      return  operator()(m.second);
    }

    template<typename P> 
    bool run_filter(P arg) {
      if(filter_->enabled())
        return (*filter_)(arg);
      else
        return true;
    }

  protected:
    GraphFilter<GraphType>* filter_;
};

#endif