Class: BibTeX::Entry::RDFConverter
- Inherits:
-
Object
- Object
- BibTeX::Entry::RDFConverter
- Defined in:
- lib/bibtex/entry/rdf_converter.rb
Constant Summary collapse
- DEFAULT_REMOVE_FROM_FALLBACK =
%w( bdsk-file-1 bdsk-file-2 bdsk-file-3 bdsk-file-4 ).map(&:intern).freeze
- BIBO_TYPES =
Hash[*%w{ article Article book Book booklet Book collection Collection conference AcademicArticle inbook BookSection incollection BookSection inproceedings AcademicArticle journal Journal manual Manual mastersthesis Thesis online Website patent Patent periodical Periodical phdthesis Thesis proceedings Proceedings standard Standard techreport Report thesis Thesis unpublished Manuscript }.map(&:intern)].freeze
Class Method Summary collapse
-
.convert(bibtex, graph = RDF::Graph.new, agent = {}) ⇒ RDF::Graph
converts a BibTeX entry to RDF.
Instance Method Summary collapse
- #abstract ⇒ Object
- #annote ⇒ Object
- #author ⇒ Object
- #bdsk_url ⇒ Object
- #booktitle ⇒ Object
- #chapter ⇒ Object
- #children ⇒ Object
-
#convert! ⇒ RDF::Graph
The RDF graph of this entry.
- #copyright ⇒ Object
- #date_added ⇒ Object
- #date_modified ⇒ Object
- #doi ⇒ Object
- #edition ⇒ Object
- #editor ⇒ Object
- #fallback_default ⇒ Object
- #howpublished ⇒ Object
-
#initialize(bibtex, graph = RDF::Graph.new, agent = {}) ⇒ RDFConverter
constructor
A new instance of RDFConverter.
- #institution ⇒ Object
- #isbn ⇒ Object
- #issn ⇒ Object
- #journal_dc_part_of ⇒ Object
- #journal_dc_source ⇒ Object
- #key ⇒ Object
- #keywords ⇒ Object
- #language ⇒ Object
- #lccn ⇒ Object
- #location ⇒ Object
- #note ⇒ Object
- #number ⇒ Object
- #organization ⇒ Object
- #pages ⇒ Object
- #pagetotal ⇒ Object
- #parent ⇒ Object
- #publisher ⇒ Object
- #school ⇒ Object
- #series ⇒ Object
- #thesis_degree ⇒ Object
- #title ⇒ Object
- #translator ⇒ Object
- #type ⇒ Object
- #url ⇒ Object
- #volume ⇒ Object
- #volumes ⇒ Object
- #year ⇒ Object
Constructor Details
#initialize(bibtex, graph = RDF::Graph.new, agent = {}) ⇒ RDFConverter
Returns a new instance of RDFConverter.
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# File 'lib/bibtex/entry/rdf_converter.rb', line 47 def initialize(bibtex, graph = RDF::Graph.new, agent = {}) @bibtex = bibtex @graph = graph @agent = agent end |
Class Method Details
.convert(bibtex, graph = RDF::Graph.new, agent = {}) ⇒ RDF::Graph
converts a BibTeX entry to RDF
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# File 'lib/bibtex/entry/rdf_converter.rb', line 42 def self.convert(bibtex, graph = RDF::Graph.new, agent = {}) new(bibtex, graph, agent).convert! end |
Instance Method Details
#abstract ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 67 def abstract return unless bibtex.field?(:abstract) remove_from_fallback(:abstract) graph << [entry, RDF::Vocab::DC.abstract, bibtex[:abstract].to_s] graph << [entry, bibo[:abstract], bibtex[:abstract].to_s] end |
#annote ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 75 def annote return unless bibtex.field?(:annote) remove_from_fallback(:annote) pub = RDF::Node.new graph << [pub, RDF.type, bibo[:Note]] graph << [pub, bibo[:content], bibtex[:annote]] graph << [entry, bibo[:annotates], pub] end |
#author ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 86 def return unless bibtex.field?(:author) remove_from_fallback(:author) seq = RDF::Node.new graph << [seq, RDF.type, RDF[:Seq]] graph << [entry, bibo[:authorList], seq] bibtex[:author].each do |name| node = agent(name) { create_agent(name, :Person) } graph << [entry, RDF::Vocab::DC.creator, node] graph << [seq, RDF.li, node] end end |
#bdsk_url ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 103 def bdsk_url count = 1 while bibtex.field?("bdsk-url-#{count}".to_sym) do field = "bdsk-url-#{count}".to_sym remove_from_fallback(field) graph << [entry, RDF::Vocab::DC.URI, bibtex[field].to_s] graph << [entry, bibo[:uri], bibtex[field].to_s] count += 1 end end |
#booktitle ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 114 def booktitle return unless bibtex.field?(:booktitle) remove_from_fallback(:booktitle) return if bibtex.has_parent? && bibtex.parent[:title] == bibtex[:booktitle] return if bibtex.has_parent? && bibtex.parent[:booktitle] == bibtex[:booktitle] return if bibtex.has_parent? && bibtex.parent[:isbn] == bibtex[:isbn] return if bibtex[:title] == bibtex[:booktitle] series = RDF::Node.new graph << [series, RDF.type, bibo[:Document]] graph << [series, RDF::Vocab::DC.title, bibtex[:booktitle].to_s] graph << [entry, RDF::Vocab::DC.isPartOf, series] end |
#chapter ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 132 def chapter return unless bibtex.field?(:chapter) remove_from_fallback(:chapter) graph << [entry, bibo[:chapter], bibtex[:chapter].to_s] end |
#children ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 139 def children return unless bibtex.has_children? bibtex.children.each do |child| child_id = RDF::URI.new(child.identifier) BibTeX::Entry::RDFConverter.new(child, graph, agent).convert! unless uri_in_graph?(child_id) graph << [entry, RDF::Vocab::DC.hasPart, child_id] end end |
#convert! ⇒ RDF::Graph
Returns the RDF graph of this entry.
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# File 'lib/bibtex/entry/rdf_converter.rb', line 54 def convert! bibtex.parse_names bibtex.parse_month unless uri_in_graph?(entry) methods = self.class.instance_methods(false) - [:convert!] methods.each { |m| send(m) } run_fallback end graph end |
#copyright ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 149 def copyright return unless bibtex.field?(:copyright) remove_from_fallback(:copyright) graph << [entry, RDF::Vocab::DC.rightsHolder, bibtex[:copyright].to_s] end |
#date_added ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 156 def date_added return unless bibtex.field?(:'date-added') remove_from_fallback(:'date-added') graph << [entry, RDF::Vocab::DC.created, bibtex[:'date-added'].to_s] end |
#date_modified ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 163 def date_modified return unless bibtex.field?(:'date-modified') remove_from_fallback(:'date-modified') graph << [entry, RDF::Vocab::DC.modified, bibtex[:'date-modified'].to_s] end |
#doi ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 170 def doi return unless bibtex.field?(:doi) remove_from_fallback(:doi) graph << [entry, bibo[:doi], bibtex[:doi].to_s] graph << [entry, RDF::Vocab::DC.identifier, "doi:#{bibtex[:doi].to_s}"] end |
#edition ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 178 def edition return unless bibtex.field?(:edition) remove_from_fallback(:edition) graph << [entry, bibo[:edition], bibtex[:edition].to_s] end |
#editor ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 185 def editor return unless bibtex.field?(:editor) remove_from_fallback(:editor) seq = RDF::Node.new graph << [seq, RDF.type, RDF[:Seq]] graph << [entry, bibo[:editorList], seq] bibtex[:editor].each do |name| node = agent(name) { create_agent(name, :Person) } graph << [entry, bibo.name, node] graph << [seq, RDF.li, node] end end |
#fallback_default ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 202 def fallback_default remove_from_fallback(*DEFAULT_REMOVE_FROM_FALLBACK) end |
#howpublished ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 206 def howpublished return unless bibtex.field?(:howpublished) return unless bibtex[:howpublished] =~ /^#{URI.regexp}$/ remove_from_fallback(:howpublished) graph << [entry, RDF::Vocab::DC.URI, bibtex[:howpublished].to_s] graph << [entry, bibo[:uri], bibtex[:howpublished].to_s] end |
#institution ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 215 def institution return unless bibtex.field?(:institution) remove_from_fallback(:institution) org = agent(bibtex[:institution].to_s) { create_agent(bibtex[:institution].to_s, :Organization) } graph << [entry, RDF::Vocab::DC.contributor, org] end |
#isbn ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 224 def isbn return unless bibtex.field?(:isbn) remove_from_fallback(:isbn) graph << [entry, bibo[:isbn], bibtex[:isbn].to_s] if bibtex.contained? graph << [entry, RDF::Vocab::DC.isPartOf, "urn:isbn:#{bibtex[:isbn].to_s}"] else graph << [entry, RDF::Vocab::DC.identifier, "urn:isbn:#{bibtex[:isbn].to_s}"] end end |
#issn ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 237 def issn return unless bibtex.field?(:issn) remove_from_fallback(:issn) graph << [entry, bibo[:issn], bibtex[:issn].to_s] if bibtex.contained? graph << [entry, RDF::Vocab::DC.isPartOf, "urn:issn:#{bibtex[:issn].to_s}"] else graph << [entry, RDF::Vocab::DC.identifier, "urn:issn:#{bibtex[:issn].to_s}"] end end |
#journal_dc_part_of ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 262 def journal_dc_part_of return unless bibtex.field?(:journal) return if bibtex.has_parent? && bibtex.parent[:title] == bibtex[:journal] return if bibtex.has_parent? && bibtex.parent[:issn] == bibtex[:issn] journal = RDF::Node.new graph << [journal, RDF.type, bibo[:Journal]] graph << [journal, RDF::Vocab::DC.title, bibtex[:journal].to_s] graph << [entry, RDF::Vocab::DC.isPartOf, journal] end |
#journal_dc_source ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 249 def journal_dc_source return unless bibtex.field?(:journal) remove_from_fallback(:journal) source = [] source << bibtex[:journal].to_s source << "Vol. #{bibtex[:volume].to_s}" if bibtex.field?(:volume) source << "No. #{bibtex[:number].to_s}" if bibtex.field?(:number) pagination = bibtex[:pagination] || 'pp.' source << "#{pagination.to_s} #{bibtex[:pages].to_s}" if bibtex.field?(:pages) graph << [entry, RDF::Vocab::DC.source, source.join(', ')] end |
#key ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 274 def key graph << [entry, RDF::Vocab::DC.identifier, "urn:bibtex:#{bibtex.key}"] end |
#keywords ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 278 def keywords return unless bibtex.field?(:keywords) remove_from_fallback(:keywords) bibtex[:keywords].to_s.split(/\s*[,;]\s*/).each do |keyword| graph << [entry, RDF::Vocab::DC.subject, keyword] end end |
#language ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 287 def language return unless bibtex.field?(:language) remove_from_fallback(:language) bibtex[:language] = 'german' if bibtex[:language] == 'ngerman' graph << [entry, RDF::Vocab::DC.language, bibtex[:language].to_s] end |
#lccn ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 307 def lccn return unless bibtex.field?(:lccn) remove_from_fallback(:lccn) graph << [entry, bibo[:lccn], bibtex[:lccn].to_s] end |
#location ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 296 def location return unless bibtex.field?(:location) remove_from_fallback(:location) graph << [entry, RDF::Vocab::DC.Location, bibtex[:location].to_s] if [:proceedings, :inproceedings, :conference].include?(bibtex.type) event = RDF::Vocabulary.new('http://purl.org/NET/c4dm/event.owl') graph << [entry, event[:place], org] end end |
#note ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 314 def note return unless bibtex.field?(:note) remove_from_fallback(:note) pub = RDF::Node.new graph << [pub, RDF.type, bibo[:Note]] graph << [pub, bibo[:content], bibtex[:note]] graph << [entry, bibo[:annotates], pub] end |
#number ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 325 def number return unless bibtex.field?(:number) remove_from_fallback(:number) case bibtex.type when :techreport || :manual || :unpublished graph << [entry, bibo[:number], bibtex[:number].to_s] else graph << [entry, bibo[:issue], bibtex[:number].to_s] end end |
#organization ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 337 def organization return unless bibtex.field?(:organization) remove_from_fallback(:organization) org = agent(bibtex[:organization].to_s) { create_agent(bibtex[:organization].to_s, :Organization) } graph << [entry, RDF::Vocab::DC.contributor, org] graph << [entry, bibo[:organizer], org] if [:proceedings, :inproceedings, :conference].include?(bibtex.type) end |
#pages ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 347 def pages return unless bibtex.field?(:pages) remove_from_fallback(:pages) if bibtex[:pages].to_s =~ /^\s*(\d+)\s*-+\s*(\d+)\s*$/ graph << [entry, bibo[:pageStart], Regexp.last_match[1]] graph << [entry, bibo[:pageEnd], Regexp.last_match[2]] else graph << [entry, bibo[:pages], bibtex[:pages].to_s] end end |
#pagetotal ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 359 def pagetotal return unless bibtex.field?(:pagetotal) remove_from_fallback(:pagetotal) graph << [entry, bibo[:numPages], bibtex[:pagetotal].to_s] end |
#parent ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 366 def parent return unless bibtex.has_parent? remove_from_fallback(:crossref) parent_id = RDF::URI.new(bibtex.parent.identifier) BibTeX::Entry::RDFConverter.new(bibtex.parent, graph, agent).convert! unless uri_in_graph?(parent_id) graph << [entry, RDF::Vocab::DC.isPartOf, parent_id] end |
#publisher ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 375 def publisher return unless bibtex.field?(:publisher, :organization, :school, :institution) remove_from_fallback(:publisher, :address) org = case when bibtex.field?(:publisher) agent(bibtex[:publisher].to_s) { create_agent(bibtex[:publisher].to_s, :Organization) } when bibtex.field?(:organization) agent(bibtex[:organization].to_s) { create_agent(bibtex[:organization].to_s, :Organization) } when bibtex.field?(:school) agent(bibtex[:school].to_s) { create_agent(bibtex[:school].to_s, :Organization) } when bibtex.field?(:institution) agent(bibtex[:institution].to_s) { create_agent(bibtex[:institution].to_s, :Organization) } end if bibtex.field?(:address) address = RDF::Vocabulary.new('http://schemas.talis.com/2005/address/schema#') graph << [org, address[:localityName], bibtex[:address]] end graph << [entry, RDF::Vocab::DC.publisher, org] graph << [entry, bibo[:publisher], org] end |
#school ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 400 def school return unless bibtex.field?(:school) remove_from_fallback(:school) org = agent(bibtex[:school].to_s) { create_agent(bibtex[:school].to_s, :Organization) } graph << [entry, RDF::Vocab::DC.contributor, org] end |
#series ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 409 def series return unless bibtex.field?(:series) remove_from_fallback(:series) return if bibtex.has_parent? && bibtex.parent[:title] == bibtex[:series] return if bibtex.has_parent? && bibtex.parent[:series] == bibtex[:series] return if bibtex.has_parent? && bibtex.parent[:issn] == bibtex[:issn] series = RDF::Node.new graph << [series, RDF.type, bibo[:MultiVolumeBook]] graph << [series, RDF::Vocab::DC.title, bibtex[:series].to_s] graph << [entry, RDF::Vocab::DC.isPartOf, series] end |
#thesis_degree ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 423 def thesis_degree return unless bibo_class == :Thesis degree = case bibtex.type # ms = masters degree in science # Only ma and ms available. We simply chose one. when :mastersthesis then bibo['degrees/ms'] when :phdthesis then bibo['degrees/phd'] end degree = case bibtex[:type] when 'mathesis' then bibo['degrees/ma'] when 'phdthesis' then bibo['degrees/phd'] when /Dissertation/i then bibo['degrees/phd'] when /Bachelor['s]{0,2} Thesis/i then "Bachelor's Thesis" when /Diplomarbeit/i then bibo['degrees/ms'] when /Magisterarbeit/i then bibo['degrees/ma'] else degree end unless degree.nil? remove_from_fallback(:type) graph << [entry, bibo[:degree], degree] end end |
#title ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 451 def title return unless bibtex.field?(:title) remove_from_fallback(:title) title = [bibtex[:title].to_s, bibtex[:subtitle].to_s] .reject { |t| t.nil? || t.empty? } .join(': ') graph << [entry, RDF::Vocab::DC.title, title] graph << [entry, bibo[:shortTitle], bibtex[:title].to_s] if bibtex.field?(:subtitle) end |
#translator ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 462 def translator return unless bibtex.field?(:translator) remove_from_fallback(:translator) node = agent(bibtex[:translator].to_s) do create_agent(bibtex[:translator].to_s, :Person) end graph << [entry, RDF::Vocab::DC.contributor, node] graph << [entry, bibo[:translator], node] end |
#type ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 474 def type graph << [entry, RDF.type, bibo[bibo_class]] case bibtex.type when :proceedings, :journal graph << [entry, RDF::Vocab::DC.type, 'Collection'] else graph << [entry, RDF::Vocab::DC.type, 'Text'] end end |
#url ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 485 def url return unless bibtex.field?(:url) remove_from_fallback(:url) graph << [entry, RDF::Vocab::DC.URI, bibtex[:url].to_s] graph << [entry, bibo[:uri], bibtex[:url].to_s] end |
#volume ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 493 def volume return unless bibtex.field?(:volume) remove_from_fallback(:volume) graph << [entry, bibo[:volume], bibtex[:volume].to_s] end |
#volumes ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 500 def volumes return unless bibtex.field?(:volumes) remove_from_fallback(:volumes) graph << [entry, bibo[:numVolumes], bibtex[:volumes].to_s] end |
#year ⇒ Object
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# File 'lib/bibtex/entry/rdf_converter.rb', line 507 def year return unless bibtex.field?(:year) remove_from_fallback(:year, :month) year = bibtex[:year].to_s if bibtex.field?(:month) month = BibTeX::Entry::MONTHS.find_index(bibtex[:month].to_s.intern) month += 1 unless month.nil? end date = month.nil? ? year : [year, month].join('-') graph << [entry, RDF::Vocab::DC.issued, date] end |