class Marc2LinkedData::OclcResource
Constants
- PREFIX
Public Class Methods
new(uri=nil)
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Calls superclass method
# File lib/marc2linkeddata/oclc_resource.rb, line 9 def initialize(uri=nil) # Ensure the OCLC IRI contains 'www' in the host name. unless uri =~ /www\./ uri = uri.to_s.gsub('worldcat.org','www.worldcat.org') end super(uri) end
Public Instance Methods
about()
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# File lib/marc2linkeddata/oclc_resource.rb, line 47 def about q = SPARQL.parse('SELECT * WHERE { ?s <http://schema.org/about> ?o }') rdf.query(q) end
book?()
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# File lib/marc2linkeddata/oclc_resource.rb, line 27 def book? iri_types.filter {|s| s[:o] == 'http://schema.org/Book' }.length > 0 end
contributor?(uri)
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# File lib/marc2linkeddata/oclc_resource.rb, line 35 def contributor?(uri) contributors.include? RDF::URI.new(uri) end
contributors()
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# File lib/marc2linkeddata/oclc_resource.rb, line 57 def contributors q = SPARQL.parse("SELECT * WHERE { <#{@iri}> <http://schema.org/contributor> ?o }") rdf.query(q).collect {|s| s[:o] } end
creator?(uri)
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# File lib/marc2linkeddata/oclc_resource.rb, line 31 def creator?(uri) creators.include? RDF::URI.new(uri) end
creators()
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# File lib/marc2linkeddata/oclc_resource.rb, line 52 def creators q = SPARQL.parse("SELECT * WHERE { <#{@iri}> <http://schema.org/creator> ?o }") rdf.query(q).collect {|s| s[:o] } end
editor?(uri)
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# File lib/marc2linkeddata/oclc_resource.rb, line 39 def editor?(uri) editors.include? RDF::URI.new(uri) end
editors()
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# File lib/marc2linkeddata/oclc_resource.rb, line 62 def editors q = SPARQL.parse("SELECT * WHERE { <#{@iri}> <http://schema.org/editor> ?o }") rdf.query(q).collect {|s| s[:o] } end
isbns()
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# File lib/marc2linkeddata/oclc_resource.rb, line 72 def isbns q = SPARQL.parse("SELECT * WHERE { <#{@iri}> <http://schema.org/isbn> ?o }") rdf.query(q).collect {|s| s[:o] } end
media_object?()
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# File lib/marc2linkeddata/oclc_resource.rb, line 43 def media_object? iri_types.filter {|s| s[:o] == 'http://schema.org/MediaObject' }.length > 0 end
publishers()
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# File lib/marc2linkeddata/oclc_resource.rb, line 67 def publishers q = SPARQL.parse("SELECT * WHERE { <#{@iri}> <http://schema.org/publisher> ?o }") rdf.query(q).collect {|s| s[:o] } end
rdf()
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# File lib/marc2linkeddata/oclc_resource.rb, line 17 def rdf # e.g. 'http://worldcat.org/oclc/004957186' # also 'http://www.worldcat.org/oclc/004957186' return nil if @iri.nil? return @rdf unless @rdf.nil? uri4rdf = @iri.to_s uri4rdf += '.rdf' unless uri4rdf.end_with? '.rdf' @rdf = get_rdf(uri4rdf) end