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demo.rb
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demo.rb
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#!/usr/bin/env ruby
require 'linkeddata'
# creating an array of urls
urls = Array.new
urls << "https://ipaa.ca/profile/indigenous-organization/adaka"
urls << "https://ipaa.ca/profile/indigenous-organization/a11"
add_url_sparql = "./sparqls/add_derived_from.sparql"
add_url_sparql_file = File.read(add_url_sparql)
# creating the graph instance
graph = RDF::Graph.new
# looping through each url
urls.each do |url|
begin
url = url.gsub(' ', '+')
loaded_graph = RDF::Graph.load(url)
sparql_file_with_url = add_url_sparql_file.gsub("subject_url", url)
loaded_graph.query(SPARQL.parse(sparql_file_with_url, update: true))
graph << loaded_graph
rescue StandardError => e
puts "Rescue: #{e.message}"
end
end
# replacing blank nodes
sparql_file = "./sparqls/replace_blank_nodes.sparql"
graph.query(SPARQL.parse(File.read(sparql_file), update: true))
File.write('dump.jsonld', graph.dump(:jsonld))
# puts graph.dump(:turtle)