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# 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
##
# @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: Hyrax.config.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) && ::FileSet.respond_to?(:audio_mime_types)
DEFAULT_AUDIO_TYPES
end
end
end
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20 entries across 20 versions & 1 rubygems