module RoadForest::AffordanceClient
Constants
- Af
Public Instance Methods
affordance_node?(node, graph)
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# File lib/roadforest/type-handlers/rdfa-writer/environment-decorator.rb, line 59 def affordance_node?(node, graph) query = ::RDF::Query.new do pattern [node, ::RDF.type, :type] end !!( query.execute(graph).find do |solution| all_affordances.include?(solution[:type]) end) end
affordance_present(aff)
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# File lib/roadforest/type-handlers/rdfa-writer/environment-decorator.rb, line 25 def affordance_present(aff) ::RDF::Query.new do pattern [:any, ::RDF.type, aff ] end end
affordance_type_in_graph?(node, type, graph)
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# File lib/roadforest/type-handlers/rdfa-writer/environment-decorator.rb, line 68 def affordance_type_in_graph?(node, type, graph) #puts "\n#{__FILE__}:#{__LINE__} => \n#{graph.dump(:nquads)}" query_matches(has_affordance(node, type).tap{|value| #puts "#{__FILE__}:#{__LINE__} => #{[value.patterns, #value.execute(graph)].inspect}" }, graph).tap{|value| #puts "#{__FILE__}:#{__LINE__} => #{value.inspect}" } end
affordances_in_graph?(graph)
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# File lib/roadforest/type-handlers/rdfa-writer/environment-decorator.rb, line 52 def affordances_in_graph?(graph) all_affordances.each do |aff| return true if query_matches(affordance_present(aff), graph) end return false end
all_affordances()
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# File lib/roadforest/type-handlers/rdfa-writer/environment-decorator.rb, line 7 def all_affordances @all_affordances ||= [ Af.Affordance, Af.Null, Af.Safe, Af.Idempotent, Af.Unsafe, Af.Navigate, Af.Embed, Af.Metadata, Af.Update, Af.Remove, Af.Create, Af.Mutate, ] end
has_affordance(node, type)
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# File lib/roadforest/type-handlers/rdfa-writer/environment-decorator.rb, line 31 def has_affordance(node, type) if type.is_a? Symbol type = Af[type] end ::RDF::Query.new do pattern([:node, ::RDF.type, type, nil]) pattern([:node, Af.target, node, nil]) end end
payload_has_param(node)
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# File lib/roadforest/type-handlers/rdfa-writer/environment-decorator.rb, line 41 def payload_has_param(node) ::RDF::Query.new do pattern([:node, Af.payload, :context, nil]) pattern([ :param, ::RDF.type, Af.Parameter, :context ]) end end
query_matches(query, graph)
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# File lib/roadforest/type-handlers/rdfa-writer/environment-decorator.rb, line 48 def query_matches(query, graph) return (not graph.first(query).nil?) end