A Dummy Mapping for Harvard in OAI DC

harvard_mapping.rb

Krikri::Mapper.define(:harvard) do

  provider :class => DPLA::MAP::Agent do
    name 'Harvard'
    # uri # how to handle provider URIs?                                                                                                                                            
  end

  isShownAt :class => DPLA::MAP::WebResource do
    uri(record do |rec|
          rec['dc:identifier'].map(&:value).select do |v|
            v.include? 'nrs.harvard.edu/urn'
          end
        end)
  end

  aggregatedCHO :class => DPLA::MAP::SourceResource do
    title record { |rec| rec['dc:title'].map(&:value) }
    description record { |rec| rec['dc:description'].map(&:value) }

    creator :class => DPLA::MAP::Agent do
      providedLabel record { |rec| rec['dc:creator'].map(&:value) }
    end

    publisher :class => DPLA::MAP::Agent do
      providedLabel record { |rec| rec['dc:publisher'].map(&:value) }
    end

    subject :class => DPLA::MAP::Concept do
      providedLabel record { |rec| rec['dc:subject'].map(&:value) }
    end

    # format record { |rec|                                                                                                                                                         
    #   require 'pry'                                                                                                                                                               
    #   binding.pry                                                                                                                                                                 
    #   rec['dc:format'].map(&:value) }                                                                                                                                             

    language :class => DPLA::MAP::Controlled::Language do
      prefLabel record { |rec| rec['dc:language'].map(&:value) }

      uri(record { |rec| rec['dc:language'].map(&:value) }) do |val|
        "http://www.lexvo.org/page/iso639-3/#{val}"
      end
    end

    dctype :class => DPLA::MAP::Controlled::DCMIType do
      providedLabel record { |rec| rec['dc:type'].map(&:value) }
    end
  end
end

run_mapping.rb

require '../../harvard_mapping.rb'
# => true
harvester = Krikri::Harvesters::OAIHarvester.new(:endpoint => 'http://vcoai.lib.harvard.edu/vcoai/vc')
# => #<Krikri::Harvesters::OAIHarvester:0x007fb372f932d8  ... >
res = Krikri::Mapper.map(:harvard, Krikri::OaiDcParser.new(harvester.records.first))
# => [#<DPLA::MAP::Aggregation:0x3fd9b9cfd258(default)>]
puts res.first.dump :ttl
# _:g70204354453860 a <http://www.w3.org/2000/01/rdf-schema#Class>;
#    <http://dp.la/about/map/providedLabel> "Text" .
#
# <http://nrs.harvard.edu/urn-3:FHCL.Loeb:505968> a <http://www.europeana.eu/schemas/edm/WebResource> .
#
# <http://www.lexvo.org/page/iso639-3/ger> <http://www.w3.org/2004/02/skos/core#prefLabel> "ger" .
#
#  [
#     a <http://www.openarchives.org/ore/terms/Aggregation>;
#     <http://www.europeana.eu/schemas/edm/aggregatedCHO> [
#       a <http://dp.la/about/map/SourceResource>;
#       <http://purl.org/dc/terms/title> "Johann Sebastian Bach's Saemtliche Werke : thematisch verzeichnet mit Ausgabe der bisher im Druck erschienenen und ihrer Verleger, der Besitzer der Autografa und gleichzeitiger Abschriften",
#         "Thematisch verzeichnet";
#       <http://purl.org/dc/terms/creator> [
#         a <http://www.europeana.eu/schemas/edm/Agent>;
#         <http://dp.la/about/map/providedLabel> "Hauser, Franz , 1794-1870"
#       ];
#       <http://purl.org/dc/terms/description> "von Franz Hauser.",
#         "Pencil annotations in different hand.";
#       <http://purl.org/dc/terms/language> <http://www.lexvo.org/page/iso639-3/ger>;
#       <http://purl.org/dc/terms/publisher> [
#         a <http://www.europeana.eu/schemas/edm/Agent>;
#         <http://dp.la/about/map/providedLabel> "Loeb Music"
#       ];
#       <http://purl.org/dc/terms/subject> [
#         a <http://www.w3.org/2004/02/skos/core#Concept>;
#         <http://dp.la/about/map/providedLabel> "Bach, Johann Sebastian--1685-1750--Thematic catalogs",
#           "Music--Manuscripts"
#       ];
#       <http://purl.org/dc/terms/type> _:g70204354453860
#     ];
#     <http://www.europeana.eu/schemas/edm/isShownAt> <http://nrs.harvard.edu/urn-3:FHCL.Loeb:505968>;
#     <http://www.europeana.eu/schemas/edm/provider> []
#  ] .
# => nil

# Some ActiveTriples examples from results...
agg.aggregatedCHO.first.title
# => ["Johann Sebastian Bach's Saemtliche Werke : thematisch verzeichnet mit Ausgabe der bisher im Druck erschienenen und ihrer Verleger, der Besitzer der Autografa und gleichzeitiger Abschriften", "Thematisch verzeichnet"]
agg.aggregatedCHO.first.language.first.prefLabel
# => ["ger"]