TIDAAssociator.h

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/* emacs: this is -*- c++ -*- */
 
 
#ifndef   TIDA_ASSOCIATOR_H
#define   TIDA_ASSOCIATOR_H
 
#include <iostream>
#include <vector>
#include <string>
#include <cmath>
#include <map>
#include <memory>
#include <stdexcept>
 
namespace TIDA { 
 
template<typename T, typename S=T> 
class Associator {
 
public:
 
  typedef std::map<const T*, const S*>  map_type; 
  typedef std::map<const S*, const T*> rmap_type; 
 
public:
 
  Associator(const std::string& name)
    :  mname(name) 
  { } 
  
  virtual ~Associator() { } 
 
  virtual std::unique_ptr<Associator> uclone() const = 0;
 
  virtual void match(const std::vector<T*>& s1, 
             const std::vector<S*>& s2 ) = 0;
  
  // get matched track from map
  virtual const S* matched( T* t) const { 
     typename map_type::const_iterator titr = mmatched.find(t);
     if ( titr != mmatched.end() ) return titr->second;
     else                          return 0;
  } 
 
  // get matched track from reverse map
  virtual const T* revmatched( S* t) const { 
     typename rmap_type::const_iterator titr = mrevmatched.find(t);
     if ( titr != mrevmatched.end() ) return titr->second;
     else                             return 0;
  } 
 
  // get the lookup tables
  const  map_type&    matched() const { return mmatched; }
  const rmap_type& revmatched() const { return mrevmatched; }
 
  // clear the match lookup tables
  void clear() { mmatched.clear(); mrevmatched.clear(); } 
 
  // how many items were matched
  unsigned size() const { return mmatched.size(); }
 
 
protected:
 
  std::string mname;
  
  map_type  mmatched;
  rmap_type mrevmatched;
 
};
 
}
 
 
 
 
template<typename T, typename S> 
inline std::ostream& operator<<(std::ostream& s, const TIDA::Associator<T,S>& a ) { 
  typename TIDA::Associator<T,S>::map_type::const_iterator mitr = a.matched().begin();
  typename TIDA::Associator<T,S>::map_type::const_iterator mend = a.matched().end();
 
  std::cout << "TIDA::Associator size() " << a.size() << std::endl;
 
  while ( mitr!=mend ) {
    s << "\t[ ";
    if ( mitr->first ) s << *(mitr->first) << "\t";
    else               s << "-------\t\t";
 
    if ( mitr->second ) s << *(mitr->second);
    else                s << "-------";
 
    s << " ]" << std::endl;
 
    ++mitr;
  }
 
  return s;
}
 
 
#endif  //  TIDA_ASSOCIATOR_H