module Lutaml::Model::Validation

def validate
  errors = []
  self.class.attributes.each do |name, attr|
    value = public_send(:"#{name}")
    begin
      if value.respond_to?(:validate!)
        value.validate!
      else
        attr.validate_value!(value)
      end
    rescue Lutaml::Model::InvalidValueError,
           Lutaml::Model::CollectionCountOutOfRangeError,
           PatternNotMatchedError => e
      errors << e
    end
  end
  errors
end

def validate!
  errors = validate
  raise Lutaml::Model::ValidationError.new(errors) if errors.any?
end