Class: BibframeRuby::MarcConverter

Inherits:
Object
  • Object
show all
Defined in:
lib/bibframe_ruby/marc_converter.rb

Overview

Converts MARC (binary or MARCXML) to BIBFRAME RDF/XML using the vendored marc2bibframe2 XSLT.

Constant Summary collapse

XSL_DIR = 
File.expand_path("../../vendor/marc2bibframe2/xsl", __dir__)
XSL_PATH = 
File.join(XSL_DIR, "marc2bibframe2.xsl")
CHDIR_MUTEX =

Mutex to serialise Dir.chdir calls — Dir.chdir is process-global and not thread-safe.

Mutex.new

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input, baseuri: "http://example.org/", idsource: "http://id.loc.gov/vocabulary/organizations/dlc") ⇒ MarcConverter

Returns a new instance of MarcConverter.



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# File 'lib/bibframe_ruby/marc_converter.rb', line 17

def initialize(input, baseuri: "http://example.org/", idsource: "http://id.loc.gov/vocabulary/organizations/dlc")
  @input = input
  @baseuri = baseuri
  @idsource = idsource
end

Class Method Details

.marcxml?(input) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bibframe_ruby/marc_converter.rb', line 30

def self.marcxml?(input)
  input.lstrip.start_with?("<")
end

.stylesheet ⇒ Object 



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# File 'lib/bibframe_ruby/marc_converter.rb', line 59

def self.stylesheet
  @stylesheet ||= CHDIR_MUTEX.synchronize do
    Dir.chdir(XSL_DIR) do
      Nokogiri::XSLT(File.read(XSL_PATH))
    end
  end
end

Instance Method Details

#convert ⇒ Object 



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# File 'lib/bibframe_ruby/marc_converter.rb', line 23

def convert
  xml = self.class.marcxml?(@input) ? @input : binary_to_marcxml(@input)
  doc = Nokogiri::XML(xml)
  rdfxml = transform(doc)
  rdfxml.to_xml
end