Contents

module Riiif
  class File
    attr_reader :path

    class_attribute :info_extractor_class
    self.info_extractor_class = ImageMagickInfoExtractor

    # @param input_path [String] The location of an image file
    def initialize(input_path, tempfile = nil)
      @path = input_path
      @tempfile = tempfile # ensures that the tempfile will stick around until this file is garbage collected.
    end

    def self.read(stream, ext)
      create(ext) do |f|
        while chunk = stream.read(8192)
          f.write(chunk)
        end
      end
    end

    def self.create(ext = nil, _validate = true, &block)

      tempfile = Tempfile.new(['mini_magick', ext.to_s.downcase])
      tempfile.binmode
      block.call(tempfile)
      tempfile.close
      image = new(tempfile.path, tempfile)
    ensure
      tempfile.close if tempfile

    end

    # @param [Transformation] transformation
    def extract(transformation)
      command = command_factory.build(path, transformation)
      execute(command)
    end

    def info
      @info ||= info_extractor_class.new(path).extract
    end

    delegate :execute, to: Riiif::CommandRunner
    private :execute

    private

      def command_factory
        ImagemagickCommandFactory
      end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
riiif-1.4.0	app/models/riiif/file.rb
riiif-1.3.0	app/models/riiif/file.rb