Contents

# frozen_string_literal: true

module Hyrax
  ##
  # Resolves file sets to a mime type. Provides a series of utility methods for
  # figuring out what a file set is all about.
  #
  # @note this service is for `Hyrax::FileSet` Valkyrie Resources. for
  #   ActiveFedora file sets see Hydra::Works::MimeTypes
  class FileSetTypeService
    DEFAULT_AUDIO_TYPES = ['audio/mp3', 'audio/mpeg', 'audio/wav',
                           'audio/x-wave', 'audio/x-wav', 'audio/ogg'].freeze

    ##
    # @!attribute [r] file_set
    #   @return [Hyrax::FileSet]
    attr_reader :file_set

    ##
    # @todo make `file_set_characterization_proxy` (or something better?)
    #   application-level configuration.
    #
    # @param [Hyrax::FileSet] file_set
    # @param [Symbol] characterization_proxy defaults to the setting provided by
    #   the application's ActiveFedora `FileSet` class.
    def initialize(file_set:, characterization_proxy: ::FileSet.characterization_proxy, query_service: Hyrax.custom_queries)
      @file_set = file_set
      @proxy_use = Hyrax::FileMetadata::Use.uri_for(use: characterization_proxy)
      @queries = query_service
    end

    def metadata
      @metadata ||= @queries.find_many_file_metadata_by_use(resource: file_set, use: @proxy_use).first
    end

    ##
    # @return [String]
    def mime_type
      metadata&.mime_type || Hyrax::FileMetadata::GENERIC_MIME_TYPE
    end

    ##
    # @return [Boolean]
    def audio?
      audio_types.include?(mime_type)
    end

    private

    def audio_types
      return ::FileSet.audio_mime_types if defined?(::FileSet)
      DEFAULT_AUDIO_TYPES
    end
  end
end

Version data entries

8 entries across 8 versions & 1 rubygems

Version	Path
hyrax-3.3.0	app/services/hyrax/file_set_type_service.rb
hyrax-3.2.0	app/services/hyrax/file_set_type_service.rb
hyrax-3.1.0	app/services/hyrax/file_set_type_service.rb
hyrax-3.0.2	app/services/hyrax/file_set_type_service.rb
hyrax-3.0.1	app/services/hyrax/file_set_type_service.rb
hyrax-3.0.0	app/services/hyrax/file_set_type_service.rb
hyrax-3.0.0.pre.rc4	app/services/hyrax/file_set_type_service.rb
hyrax-3.0.0.pre.rc3	app/services/hyrax/file_set_type_service.rb