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MADS RDF demo using ActiveFedora 7.0.0.rc3
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source 'https://rubygems.org' | |
gem 'active-fedora', github: 'projecthydra/active_fedora', branch: 'master' | |
gem 'linkeddata' |
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#!/usr/bin/env ruby | |
# mads demo using AF 7.0 rc3 | |
require 'active-fedora' | |
require 'linkeddata' | |
# vocabularies | |
class DAMS < RDF::Vocabulary("http://library.ucsd.edu/ontology/dams#") | |
property :code | |
property :complexSubject | |
property :temporal | |
property :topic | |
end | |
class MADS < RDF::Vocabulary("http://www.loc.gov/mads/rdf/v1#") | |
# MADS classes | |
property :ComplexSubject | |
property :Temporal | |
property :Topic | |
property :MADSScheme | |
# MADS elements | |
property :isMemberOfMADSScheme | |
property :hasExactExternalAuthority | |
# elementList and elementList values | |
property :componentList | |
property :elementList | |
property :elementValue | |
property :TemporalElement | |
property :TopicElement | |
end | |
# scheme | |
class MadsScheme < ActiveFedora::Rdf::Resource | |
configure type: MADS.MADSScheme | |
property :name, predicate: RDF::RDFS.label | |
property :code, predicate: DAMS.code | |
property :externalAuthority, predicate: MADS.hasExactExternalAuthority | |
end | |
# simple subjects | |
class MadsBase < ActiveFedora::Rdf::Resource | |
property :name, predicate: MADS.authoritativeLabel | |
property :externalAuthority, predicate: MADS.hasExactExternalAuthority | |
property :scheme, predicate: MADS.isMemberOfMADSScheme, class_name: "MadsScheme" | |
accepts_nested_attributes_for :scheme | |
end | |
class MadsSimpleType < MadsBase | |
property :elementList, predicate: MADS.elementList, class_name: "MadsElementList" | |
accepts_nested_attributes_for :elementList | |
end | |
class MadsElement < ActiveFedora::Rdf::Resource | |
property :elementValue, predicate: MADS.elementValue | |
end | |
class MadsTemporal < MadsSimpleType | |
configure type: MADS.Temporal | |
end | |
class MadsTemporalElement < MadsElement | |
configure :type => MADS.TemporalElement | |
end | |
class MadsTopic < MadsSimpleType | |
configure type: MADS.Topic | |
end | |
class MadsTopicElement < MadsElement | |
configure :type => MADS.TopicElement | |
end | |
class MadsElementList < ActiveFedora::Rdf::List | |
configure type: MADS.elementList | |
property :temporalElement, predicate: MADS.TemporalElement, class_name: "MadsTemporalElement" | |
property :topicElement, predicate: MADS.TopicElement, class_name: "MadsTopicElement" | |
accepts_nested_attributes_for :temporalElement, :topicElement | |
end | |
# complex subject | |
class MadsComponentList < ActiveFedora::Rdf::List | |
configure type: MADS.componentList | |
property :temporal, predicate: MADS.Temporal, class_name: "MadsTemporal" | |
property :topic, predicate: MADS.Topic, class_name: "MadsTopic" | |
accepts_nested_attributes_for :temporal, :topic | |
end | |
class MadsComplexSubject < MadsBase | |
configure type: MADS.ComplexSubject | |
property :componentList, predicate: MADS.componentList, class_name: "MadsComponentList" | |
accepts_nested_attributes_for :componentList | |
end | |
class DamsDatastream < ActiveFedora::RdfxmlRDFDatastream | |
property :complexSubject, predicate: DAMS.complexSubject, class_name: "MadsComplexSubject" | |
property :scheme, predicate: MADS.isMemberOfMADSScheme, class_name: "MadsScheme" | |
property :temporal, predicate: DAMS.temporal, class_name: "MadsTemporal" | |
property :topic, predicate: DAMS.topic, class_name: "MadsTopic" | |
accepts_nested_attributes_for :complexSubject, :scheme, :temporal, :topic | |
end | |
class Record < ActiveFedora::Base | |
has_metadata :name=>"damsMetadata", :type=>DamsDatastream | |
has_attributes :complexSubject, :scheme, :temporal, :topic, datastream: 'damsMetadata', multiple: false | |
end | |
# scheme | |
scheme_params = { | |
scheme_attributes: [{ | |
id: 'http://library.ucsd.edu/ark:20775/bb1111111x', | |
name: 'Library of Congress Subject Headings', | |
code: 'lcsh', | |
externalAuthority: RDF::Resource.new('http://id.loc.gov/vocabulary/subjects') | |
}] | |
} | |
scheme = Record.new() | |
scheme.damsMetadata.attributes = scheme_params | |
puts "standalone scheme:\n\n" + scheme.damsMetadata.content | |
# topic | |
topic_params = { | |
topic_attributes: [{ | |
id: 'http://library.ucsd.edu/ark:20775/bb2222222x', | |
name: 'Civilization, Modern', | |
externalAuthority: RDF::Resource.new('http://id.loc.gov/authorities/subjects/sh85026469'), | |
elementList_attributes: [ | |
{ topicElement_attributes: [{elementValue:"Civilization, Modern"}] } | |
], | |
scheme_attributes: scheme_params[:scheme_attributes] | |
}] | |
} | |
topic = Record.new() | |
topic.damsMetadata.attributes = topic_params | |
puts "\ntopic:\n\n" + topic.damsMetadata.content | |
# temporal | |
temporal_params = { | |
temporal_attributes: [{ | |
id: 'http://library.ucsd.edu/ark:20775/bb3333333x', | |
name: '20th century', | |
externalAuthority: RDF::Resource.new('http://id.loc.gov/authorities/subjects/sh85139020'), | |
elementList_attributes: [ | |
{ temporalElement_attributes: [{elementValue:"20th century"}] } | |
], | |
scheme_attributes: scheme_params[:scheme_attributes] | |
}] | |
} | |
temporal = Record.new() | |
temporal.damsMetadata.attributes = temporal_params | |
puts "\ntemporal:\n\n" + temporal.damsMetadata.content | |
# complex subject | |
complex_subject_params = { | |
complexSubject_attributes: [{ | |
id: 'http://library.ucsd.edu/ark:20775/bb4444444x', | |
name: 'Civilization, Modern--20th century', | |
externalAuthority: RDF::Resource.new('http://id.loc.gov/authorities/subjects/sh85026473'), | |
componentList_attributes: [{ | |
topic_attributes: topic_params[:topic_attributes], | |
temporal_attributes: temporal_params[:temporal_attributes] | |
}], | |
scheme_attributes: scheme_params[:scheme_attributes] | |
}] | |
} | |
subject = Record.new() | |
subject.damsMetadata.attributes = complex_subject_params | |
puts "\ncomplex subject:\n\n" + subject.damsMetadata.content |
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