Module: Hydra::Derivatives::ExtractMetadata

Includes:
Open3
Defined in:
lib/hydra/derivatives/extract_metadata.rb

Instance Method Summary collapse

Instance Method Details

#extract_metadata ⇒ Object 



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# File 'lib/hydra/derivatives/extract_metadata.rb', line 7

def extract_metadata
  out = nil
  to_tempfile do |f|
    out = run_fits!(f.path)
  end
  out
end

#to_tempfile {|f| ... } ⇒ Object

Yields:

  • (f) 


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# File 'lib/hydra/derivatives/extract_metadata.rb', line 15

def to_tempfile &block
  return unless has_content?
  list_of_extensions = MIME::Types[mimeType].first.extensions
  extension = ".#{list_of_extensions.first}" if list_of_extensions

  f = Tempfile.new(["#{pid}-#{dsVersionID}", extension])
  f.binmode
  if content.respond_to? :read
    f.write(content.read)
  else
    f.write(content)
  end
  f.close
  content.rewind if content.respond_to? :rewind
  yield(f)
  f.unlink
end