Class: SHACL::Algebra::ConstraintComponent

Inherits:
Operator show all
Defined in:
vendor/bundler/ruby/3.3.0/bundler/gems/shacl-e638b9acc6d8/lib/shacl/algebra/constraint_component.rb

Overview

Constraint Components define basic constraint behaivor through mandatory and optional parameters. Constraints are accessed through their parameters.

Constant Summary

Constants inherited from Operator

Operator::BUILTIN_KEYS, Operator::PARAMETERS

Constants included from RDF::Util::Logger

RDF::Util::Logger::IOWrapper

Constants inherited from SPARQL::Algebra::Operator

SPARQL::Algebra::Operator::ARITY, SPARQL::Algebra::Operator::IsURI, SPARQL::Algebra::Operator::URI

Constants included from SPARQL::Algebra::Expression

SPARQL::Algebra::Expression::PATTERN_PARENTS

Instance Attribute Summary

Attributes inherited from Operator

#graph, #options, #shapes_graph

Attributes inherited from SPARQL::Algebra::Operator

#operands

Class Method Summary collapse

Methods inherited from Operator

add_component, apply_op, #comment, component_params, #conforms, #deactivated?, from_expanded_value, #id, #iri, iri, #label, #not_satisfied, params, parse_path, #satisfy, to_rdf, #to_sxp_bin, #type

Methods included from JSON::LD::Utils

#add_value, #as_array, #as_resource, #blank_node?, #compare_values, #graph?, #has_value?, #index?, #list?, #node?, #node_or_ref?, #node_reference?, #property?, #simple_graph?, #value?

Methods included from RDF::Util::Logger

#log_debug, #log_depth, #log_error, #log_fatal, #log_info, #log_recover, #log_recovering?, #log_statistics, #log_warn, #logger

Methods inherited from SPARQL::Algebra::Operator

#aggregate?, arity, base_uri, #base_uri, base_uri=, #bind, #boolean, #constant?, #deep_dup, #each_descendant, #eql?, #evaluatable?, evaluate, #executable?, #first_ancestor, for, #formulae, #initialize, #inspect, #ndvars, #node?, #operand, #optimize, #optimize!, #parent, #parent=, prefixes, #prefixes, prefixes=, #rewrite, #to_binary, #to_sparql, to_sparql, #to_sxp, #to_sxp_bin, #validate!, #variable?, #variables, #vars

Methods included from SPARQL::Algebra::Expression

cast, #constant?, #evaluate, extension, extension?, extensions, for, #invalid?, new, #node?, open, #optimize, #optimize!, parse, register_extension, #to_sxp_bin, #valid?, #validate!, #variable?

Constructor Details

This class inherits a constructor from SPARQL::Algebra::Operator

Class Method Details

.from_json(operator, **options) ⇒ Operator

Creates an operator instance from a parsed SHACL representation.

Special case for SPARQL ConstraintComponents.

Parameters:

  • operator (Hash)
  • options (Hash) —

    ({})

Options Hash (**options):

Returns:

Raises:



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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/shacl-e638b9acc6d8/lib/shacl/algebra/constraint_component.rb', line 20

def from_json(operator, **options)
  operands = []

  # Component is known by its subject IRI
  id = operator.fetch('id')

  # Component class (for instantiation) is based on the _local name_ of the component IRI
  class_name = ncname(id)

  parameters = operator.fetch('parameter', []).inject({}) do |memo, param|
    # Symbolize keys
    param = param.inject({}) {|memo, (k,v)| memo.merge(k.to_sym => v)}

    plc = ncname(param[:path])

    # Add class and local name
    param = param.merge(class: class_name, local_name: plc)
    memo.merge(param[:path] => param)
  end

  # Add parameters to operator lookup
  add_component(class_name, parameters)

  # Add parameter identifiers to operands
  operands << [:parameters, parameters.keys]

  # FIXME: labelTemplate

  validator = %w(validator nodeValidator propertyValidator).inject(nil) do |memo, p|
    memo || (SPARQLConstraintComponent.from_json(operator[p]) if operator.key?(p))
  end
  raise SHACL::Error, "Constraint Component has no validator" unless validator

  operands << [:validator, validator]

  new(*operands, **options)
end

.ncname(uri) ⇒ Symbol

Extract the NCName tail of an IRI as a symbol.

Parameters:

Returns:



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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/shacl-e638b9acc6d8/lib/shacl/algebra/constraint_component.rb', line 62

def ncname(uri)
  uri.to_s.match(/(\w+)$/).to_s.to_sym
end