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Versions: 14
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Contents
module Hybag
class BagWriter
attr_reader :bag
attr_reader :object
def initialize(object)
@object = object
@bag = object.bag
end
def write!
# add the datastreams to the bag, then manifest
@object.datastreams.each do |label, ds|
unless ds.content.nil?
label = label + mime_extension(ds)
if bag_tags.include? ds
bag.add_tag_file(label) { |f|
f.puts ds.content
}
elsif bag_fedora_tags.values.include? ds
bag.add_tag_file('fedora/' + label) { |f|
f.puts ds.content
}
else
bag.add_file(label) { |f|
content = ds.content
content = ds.content.read if ds.content.respond_to?(:read)
f.puts content.force_encoding('UTF-8')
}
end
end
end
bag.tagmanifest!
bag.manifest!
return bag
end
private
# return all non-fedora tag files
def bag_tags
object.metadata_streams
end
def mime_extension(ds)
if ds.kind_of?(ActiveFedora::NtriplesRDFDatastream)
ext = 'nt'
else
if ds.mimeType.blank?
ext = ''
else
ext = MIME::Types[ds.mimeType] || ''
ext = ext.first.extensions[0] unless ext.blank?
end
end
return '.' + ext
end
def bag_fedora_tags
object.datastreams.select { |label, ds| ds.is_a?(ActiveFedora::RelsExtDatastream) or ds.dsid == "DC"}
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems