Class: RDF::N3::Algebra::Time::LocalTime

Inherits:
ResourceOperator
  • Object
show all
Defined in:
lib/rdf/n3/algebra/time/local_time.rb

Overview

For a date-time format string, its time:localTime is the result of formatting the current time of processing and local timezone in the format given. If the format string has zero length, then the ISOdate standrad format is used. [ is time:localTime of “”] the therefore the current date time. It will end with a numeric timezone code or “Z” for UTC (GMT).

See Also:

Constant Summary collapse

NAME = 
:timeLocalTime
URI = 
RDF::N3::Time.localTime

Instance Attribute Summary

Attributes included from Enumerable

#existentials, #universals

Instance Method Summary collapse

Methods inherited from ResourceOperator

#as_literal, #execute, #input_operand, #valid?

Methods included from Builtin

#each, #evaluate, #hash, #input_operand, #rank, #to_uri

Instance Method Details

#resolve(resource, position:) ⇒ RDF::Term

The time:localTime operator takes string or dateTime and returns current time formatted according to the subject.

Parameters:

  • resource (RDF::Term)
  • position (:subject, :object)

Returns:

See Also:

  • ResourceOperator#evaluate


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# File 'lib/rdf/n3/algebra/time/local_time.rb', line 17

def resolve(resource, position:)
  case position
  when :subject
    return nil unless resource.literal?
    resource = "%FT%T%:z" if resource.to_s.empty?
    RDF::Literal(DateTime.now.strftime(resource.to_s))
  when :object
    return nil unless resource.literal? || resource.variable?
    resource
  end
end