Class: TAO::RDFizer

Inherits:
Object
  • Object
show all
Defined in:
lib/tao_rdfizer/tao_rdfizer.rb

Instance Method Summary collapse

Constructor Details

#initialize(mode = nil) ⇒ RDFizer

if mode == :spans then produces span descriptions if mode == :annotations then produces annotation descriptions if mode == nil then produces both



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# File 'lib/tao_rdfizer/tao_rdfizer.rb', line 10

def initialize(mode = nil)
	@mode = mode
	template = if !mode.nil? && mode == :spans
		ERB_SPANS_TTL
	else
		ERB_ANNOTATIONS_TTL
	end
	@tao_ttl_erb = ERB.new(template, nil, '-')
	@prefix_ttl_erb = ERB.new(ERB_PREFIXES_TTL, nil, '-')
end

Instance Method Details

#rdfize(annotations_col, options = nil) ⇒ Object 



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# File 'lib/tao_rdfizer/tao_rdfizer.rb', line 21

def rdfize(annotations_col, options = nil)
	options ||= {}
	only_prefixes = options.has_key?(:only_prefixes) ? options[:only_prefixes] == true : false
	with_prefixes = options.has_key?(:with_prefixes) ? options[:with_prefixes] == true : true

	# check the format
	annotations_col.each do |annotations|
		raise "'target' is missing" unless annotations.has_key? :target
	end

	# namespaces
	namespaces = {}

	anns = annotations_col.first
	anns[:namespaces].each {|n| namespaces[n[:prefix]] = n[:uri]} unless anns[:namespaces].nil?

	prefixes_ttl = @prefix_ttl_erb.result_with_hash(namespaces:namespaces) if only_prefixes || with_prefixes

	if only_prefixes
		prefixes_ttl
	else
		annotations_ttl = get_annotations_ttl(annotations_col, namespaces)
		if with_prefixes
			prefixes_ttl + annotations_ttl
		else
			annotations_ttl
		end
	end
end