Class: Inspector::Metadata::Walker

Inherits:
Object
  • Object
show all
Defined in:
lib/inspector/metadata/walker.rb

Instance Method Summary collapse

Constructor Details

#initialize(violation_list_class, validator_map) ⇒ Walker

Returns a new instance of Walker.



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# File 'lib/inspector/metadata/walker.rb', line 4

def initialize(violation_list_class, validator_map)
  @violation_list_class = violation_list_class
  @validator_map        = validator_map
end

Instance Method Details

#walk_object(metadata, object) ⇒ Object 



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# File 'lib/inspector/metadata/walker.rb', line 9

def walk_object(metadata, object)
  violations = @violation_list_class.new

  metadata.constraints.each do |constraint|
    not_found = "validator #{constraint.validator} cannot be found"
    validator = @validator_map.fetch(constraint.validator) { raise not_found }

    validator.validate(object, constraint, violations)
  end

  # walk object attributes, properties and children if object constraints passed
  if violations.empty?
    metadata.attribute_metadatas.each do |metadata|
      path  = metadata.attribute_name
      value = metadata.attribute_value(object)

      violations[path] = walk_object(metadata, value)
    end

    metadata.property_metadatas.each do |metadata|
      path  = "[#{metadata.property_name}]"
      value = metadata.property_value(object)

      violations[path] = walk_object(metadata, value)
    end

    metadata.children_metadata.children(object) do |child, index|
      path = "[#{index}]"

      violations[path] = walk_object(metadata.children_metadata, child)
    end unless metadata.children_metadata.nil?
  end

  violations
end