module Backend

  class Files < Backend

    def initialize bundle_name, category
      super bundle_name, category

      # Note: We marshal the similarity, as the
      #       Yajl json lib cannot load symbolized
      #       values, just keys.
      #
      @index         = File::JSON.new    category.index_path(bundle_name, :index)
      @weights       = File::JSON.new    category.index_path(bundle_name, :weights)
      @similarity    = File::Marshal.new category.index_path(bundle_name, :similarity)
      @configuration = File::JSON.new    category.index_path(bundle_name, :configuration)
    end

    def to_s
      <<-FILES
Files:
#{"Index:      #{@index}".indented_to_s}
#{"Weights:    #{@weights}".indented_to_s}
#{"Similarity: #{@similarity}".indented_to_s}
#{"Config:     #{@configuration}".indented_to_s}
FILES
    end

  end

end