public TrendingMoviesActor()
        {
            _recentlyPlayedMovies = new Queue<string>(NumberOfRecentMoviesToAnalyze);
            _trendAnalyzer = new SimpleTrendingMovieAnalyzer();

            Receive<IncrementPlayCountMessage>(message => HandleIncrementMessage(message));
        }
        public TrendingMoviesActor(ITrendingMovieAnalyzer analyzer)
        {
            _recentlyPlayedMovies = new Queue <string>(NumberOfRecentMoviesToAnalyze);
            _trendAnalyzer        = analyzer;

            Receive <IncrementPlayCountMessage>(message => HandleIncrementMessage(message));
        }