Class: PubliSci::Prov::Usage

Inherits:
Object
  • Object
show all
Includes:
Element
Defined in:
lib/publisci/metadata/prov/usage.rb

Instance Method Summary collapse

Methods included from Element

#__label=, #subject, #subject=, #subject_id

Methods included from CustomPredicate

#add_custom, #custom, #has

Methods included from Vocabulary

#vocabulary

Instance Method Details

#__label ⇒ Object 



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# File 'lib/publisci/metadata/prov/usage.rb', line 6

def __label
  @__label ||= Time.now.nsec.to_s(32)
end

#entity(entity = nil) ⇒ Object 



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# File 'lib/publisci/metadata/prov/usage.rb', line 10

def entity(entity=nil)
  basic_keyword(:entity,:entities,entity)
end

#had_role(*args, &block) ⇒ Object Also known as: role 



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# File 'lib/publisci/metadata/prov/usage.rb', line 14

def had_role(*args, &block)
  if block_given?
    p = Prov::Role.new
    p.instance_eval(&block)
    p.__label=args[0]
    @role = p
    # puts p.class
    Prov.register(args[0], p)
  elsif args.size == 0
    if @role.is_a? Symbol
      raise "UnknownRole: #{@role}" unless (Prov.registry[:role]||={})[@role]
      @role = Prov.registry[:role][@role]
    end
    @role
  elsif args.size == 1
    unless (Prov.registry[:role]||={})[args[0]]
      p = Prov::Role.new
      p.__label=args[0]
      @role = p
      Prov.register(args[0], p)
    end
  else
    name = args.shift
    args = Hash[*args]
    p = Prov::Role.new

    p.__label=name
    p.subject args[:subject]
    (args.keys - [:subject]).map{|k|
      raise "Unkown Role setting #{k}" unless try_auto_set(p,k,args[k])
    }
    @role = p
    Prov.register(name, p)
  end
end

#to_n3 ⇒ Object 



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# File 'lib/publisci/metadata/prov/usage.rb', line 51

def to_n3
  str = "<#{subject}> a prov:Usage ;\n"
  str << "\tprov:entity <#{entity}> ;\n"
  str << "\tprov:hadRole <#{had_role}> ;\n" if had_role
  str[-2] = ".\n"
  str
end

#to_s ⇒ Object 



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# File 'lib/publisci/metadata/prov/usage.rb', line 59

def to_s
  subject
end