Method: JSONSchemer::Schema#resolve_ref

Defined in:

lib/json_schemer/schema.rb

#resolve_ref(uri) ⇒ Object

Raises:

• (InvalidRefPointer)

# File 'lib/json_schemer/schema.rb', line 175

def resolve_ref(uri)
  pointer = ''
  if Format.valid_json_pointer?(uri.fragment)
    pointer = URI.decode_www_form_component(uri.fragment)
    uri.fragment = nil
  end

  lexical_resources = resources.fetch(:lexical)
  schema = lexical_resources[uri]

  if !schema && uri.fragment.nil?
    empty_fragment_uri = uri.dup
    empty_fragment_uri.fragment = ''
    schema = lexical_resources[empty_fragment_uri]
  end

  unless schema
    location_independent_identifier = uri.fragment
    uri.fragment = nil
    remote_schema = JSONSchemer.schema(
      ref_resolver.call(uri) || raise(InvalidRefResolution, uri.to_s),
      :configuration => configuration,
      :base_uri => uri,
      :meta_schema => meta_schema,
      :ref_resolver => ref_resolver,
      :regexp_resolver => regexp_resolver
    )
    remote_uri = remote_schema.base_uri.dup
    remote_uri.fragment = location_independent_identifier if location_independent_identifier
    schema = remote_schema.resources.fetch(:lexical).fetch(remote_uri)
  end

  schema = Hana::Pointer.parse(pointer).reduce(schema) do |obj, token|
    obj.fetch(token)
  rescue IndexError
    raise InvalidRefPointer, pointer
  end

  schema = schema.parsed_schema if schema.is_a?(Keyword)
  raise InvalidRefPointer, pointer unless schema.is_a?(Schema)

  schema
end