Class: JSONSkooma::Keywords::Core::DynamicRef

Inherits:
Base
  • Object
show all
Defined in:
lib/json_skooma/keywords/core/dynamic_ref.rb

Instance Attribute Summary

Attributes inherited from Base

#json, #parent_schema

Instance Method Summary collapse

Methods inherited from Base

#each_schema, inherited, #instance_types, #key, set_defaults, #static, value_schema=

Constructor Details

#initialize(parent_schema, value) ⇒ DynamicRef

Returns a new instance of DynamicRef.



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# File 'lib/json_skooma/keywords/core/dynamic_ref.rb', line 9

def initialize(parent_schema, value)
  super
  @fragment = URI.parse(value).fragment
  @dynamic = false
end

Instance Method Details

#evaluate(instance, result) ⇒ Object 



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# File 'lib/json_skooma/keywords/core/dynamic_ref.rb', line 34

def evaluate(instance, result)
  ref_schema = @ref_schema
  if @dynamic
    target = result
    checked_uris = Set.new
    while target
      base_uri = target.schema.base_uri
      if base_uri && !checked_uris.include?(base_uri)
        checked_uris << base_uri
        target_uri = base_uri.dup.tap { |u| u.fragment = @fragment }

        begin
          found_schema = parent_schema.registry.schema(
            target_uri,
            cache_id: parent_schema.cache_id
          )
          dynamic_anchor = found_schema["$dynamicAnchor"]
          ref_schema = found_schema if dynamic_anchor == @fragment
        rescue RegistryError, Hana::Pointer::FormatError
          # do nothing
        end
      end

      target = target.parent
    end
  end

  ref_schema.evaluate(instance, result)
  result.ref_schema = ref_schema
end

#resolve ⇒ Object 



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# File 'lib/json_skooma/keywords/core/dynamic_ref.rb', line 15

def resolve
  uri = URI.parse(json)
  if uri.relative?
    base_uri = parent_schema.base_uri
    if base_uri.nil?
      raise "No base URI against which to resolve the `$dynamicRef` value `#{uri}`"
    end

    uri = base_uri + uri
  end
  @ref_schema = parent_schema.registry.schema(
    uri,
    metaschema_uri: parent_schema.metaschema_uri,
    cache_id: parent_schema.cache_id
  )
  dynamic_anchor = @ref_schema["$dynamicAnchor"] if @ref_schema.type == "object"
  @dynamic = dynamic_anchor == @fragment
end