Site.php

<?php

namespace Drupal\rules\Plugin\DataType;

use Drupal\Core\TypedData\Plugin\DataType\Map;
use Drupal\rules\TypedData\Type\SiteInterface;

/**
 * The "site" data type.
 *
 * The "map" data type represent a simple complex data type, e.g. for
 * representing associative arrays. It can also serve as base class for any
 * complex data type.
 *
 * By default there is no metadata for contained properties. Extending classes
 * may want to override MapDataDefinition::getPropertyDefinitions() to define
 * it.
 *
 * @ingroup typed_data
 *
 * @DataType(
 *   id = "site",
 *   label = @Translation("Site information"),
 *   description = @Translation("Site information"),
 *   definition_class = "\Drupal\rules\TypedData\Type\SiteDataDefinition"
 * )
 */
class Site extends Map implements SiteInterface {
    
    /**
     * Sets the data values for this type.
     *
     * Overrides \Drupal\Core\TypedData\TypedData::setValue().
     *
     * @param array|null $values
     *   An array of property values.
     * @param bool $notify
     *   (optional) Whether to notify the parent object of the change. Defaults
     *   to TRUE. If a property is updated from a parent object, set it to FALSE
     *   to avoid being notified again.
     */
    public function setValue($values, $notify = TRUE) {
        // @todo Should check if is IteratorAggregate instead, then we can
        // use foreach and treat arrays/objects the same.
        if (isset($values) && !is_array($values)) {
            if (!method_exists($values, 'toArray')) {
                throw new \InvalidArgumentException("Invalid values given. Values must be represented as an associative array.");
            }
            else {
                $this->values = $values->toArray();
            }
        }
        else {
            $this->values = $values;
        }
        // Update any existing property objects.
        foreach ($this->properties as $name => $property) {
            $value = $values[$name] ?? NULL;
            $property->setValue($value, FALSE);
            // Remove the value from $this->values to ensure it does not contain any
            // value for computed properties.
            unset($this->values[$name]);
        }
        // Notify the parent of any changes.
        if ($notify && isset($this->parent)) {
            $this->parent
                ->onChange($this->name);
        }
    }

}