class SHACL::Algebra::Xone

Constants

NAME

Public Instance Methods

conforms(node, path: nil, depth: 0, **options) click to toggle source

Specifies the condition that each value node conforms to exactly one of the provided shapes.

@example

ex:XoneConstraintExampleShape
        a sh:NodeShape ;
        sh:targetClass ex:Person ;
        sh:xone (
                [
                        sh:property [
                                sh:path ex:fullName ;
                                sh:minCount 1 ;
                        ]
                ]
                [
                        sh:property [
                                sh:path ex:firstName ;
                                sh:minCount 1 ;
                        ] ;
                        sh:property [
                                sh:path ex:lastName ;
                                sh:minCount 1 ;
                        ]
                ]
        ) .

@param [RDF::Term] node @param [Hash{Symbol => Object}] options @return [Array<SHACL::ValidationResult>]

# File lib/shacl/algebra/xone.rb, line 35
def conforms(node, path: nil, depth: 0, **options)
  log_debug(NAME, depth: depth) {SXP::Generator.string({node: node}.to_sxp_bin)}
  num_conform = operands.inject(0) do |memo, op|
    results = op.conforms(node, depth: depth + 1, **options)
    memo += (results.flatten.all?(&:conform?) ? 1 : 0)
  end
  case num_conform
  when 0
    not_satisfied(focus: node, path: path,
      value: node,
      message: "node does not conform to any shape",
      resultSeverity: options.fetch(:severity),
      component: RDF::Vocab::SHACL.XoneConstraintComponent,
      depth: depth, **options)
  when 1
    satisfy(focus: node, path: path,
      value: node,
      message: "node conforms to a single shape",
      component: RDF::Vocab::SHACL.XoneConstraintComponent,
      depth: depth, **options)
  else
    not_satisfied(focus: node, path: path,
      value: node,
      message: "node conforms to #{num_conform} shapes",
      resultSeverity: options.fetch(:severity),
      component: RDF::Vocab::SHACL.XoneConstraintComponent,
      depth: depth, **options)
  end
end