MR_stream.hh

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#ifndef SGM_MR_STREAM_HH_
#define SGM_MR_STREAM_HH_

#include "sgm/Match_Reporter.hh"

#include <iostream>
#include <iomanip>

namespace sgm {
    
      /*! @brief Writes each match to an output stream
       *
       *  A sgm::Match_Reporter implementation that writes the matched pairs of
       *  pattern and target graph nodes to stream.
       *
       *  @author Martin Mann (c) 2008 http://www.bioinf.uni-freiburg.de/~mmann/
       */
    class MR_stream : public Match_Reporter {
        
    protected:
        
          //! the stream to write to
        std::ostream & out;
        
          //! the number of matches reported so far
        size_t numberOfMatches;
        
    public:
        
          //! Construction
        MR_stream( std::ostream& out );
        
        virtual 
        ~MR_stream();
        
          //! Writes a match to stream.
          //! @param pattern the pattern graph that was searched for
          //! @param target the graph the pattern was found within
          //! @param match contains the indices of the matched pattern nodes in
          //! the target graph. match[i] corresponds to the mapping of the ith
          //! vertex in the pattern graph.
        virtual
        void
        reportHit ( const Pattern_Interface & pattern,
                    const Graph_Interface & target,
                    const Match & match );
        
          //! Resets the number of matches reported so far to 0.
        void
        resetHits ( void );
    
    };
    
} // namespace sgm

 // IMPLEMENTATION OF MR_stream

namespace sgm {

    inline
    MR_stream
	::MR_stream( std::ostream& out_ )
     : out(out_), numberOfMatches(0)
    {}
    
    inline
    MR_stream
	::~MR_stream( )
    {}

    inline
    void
    MR_stream
	::reportHit (  const Pattern_Interface & pattern,
                    const Graph_Interface & target,
                    const Match & match )
    {
        numberOfMatches++;
        
        out <<std::setw(6) <<numberOfMatches <<" :";
        for (size_t i=0; i<match.size(); ++i) {
            out <<" (" <<i <<"," <<match[i] <<")";
        }
        out <<std::endl;
    }

    inline
    void
    MR_stream
	::resetHits ( void )
    {
        numberOfMatches = 0;
    }

}

#endif /*MR_STREAM_HH_*/