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<?php
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 2.0.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Controller;
use Cake\Controller\Exception\MissingComponentException;
use Cake\Core\App;
use Cake\Core\ObjectRegistry;
use Cake\Event\EventDispatcherInterface;
use Cake\Event\EventDispatcherTrait;
/**
* ComponentRegistry is a registry for loaded components
*
* Handles loading, constructing and binding events for component class objects.
*/
class ComponentRegistry extends ObjectRegistry implements EventDispatcherInterface
{
use EventDispatcherTrait;
/**
* The controller that this collection was initialized with.
*
* @var \Cake\Controller\Controller
*/
protected $_Controller;
/**
* Constructor.
*
* @param \Cake\Controller\Controller|null $controller Controller instance.
*/
public function __construct(Controller $controller = null)
{
if ($controller) {
$this->setController($controller);
}
}
/**
* Get the controller associated with the collection.
*
* @return \Cake\Controller\Controller Controller instance
*/
public function getController()
{
return $this->_Controller;
}
/**
* Set the controller associated with the collection.
*
* @param \Cake\Controller\Controller $controller Controller instance.
* @return void
*/
public function setController(Controller $controller)
{
$this->_Controller = $controller;
$this->setEventManager($controller->getEventManager());
}
/**
* Resolve a component classname.
*
* Part of the template method for Cake\Core\ObjectRegistry::load()
*
* @param string $class Partial classname to resolve.
* @return string|false Either the correct classname or false.
*/
protected function _resolveClassName($class)
{
return App::className($class, 'Controller/Component', 'Component');
}
/**
* Throws an exception when a component is missing.
*
* Part of the template method for Cake\Core\ObjectRegistry::load()
* and Cake\Core\ObjectRegistry::unload()
*
* @param string $class The classname that is missing.
* @param string $plugin The plugin the component is missing in.
* @return void
* @throws \Cake\Controller\Exception\MissingComponentException
*/
protected function _throwMissingClassError($class, $plugin)
{
throw new MissingComponentException([
'class' => $class . 'Component',
'plugin' => $plugin
]);
}
/**
* Create the component instance.
*
* Part of the template method for Cake\Core\ObjectRegistry::load()
* Enabled components will be registered with the event manager.
*
* @param string $class The classname to create.
* @param string $alias The alias of the component.
* @param array $config An array of config to use for the component.
* @return \Cake\Controller\Component The constructed component class.
*/
protected function _create($class, $alias, $config)
{
$instance = new $class($this, $config);
$enable = isset($config['enabled']) ? $config['enabled'] : true;
if ($enable) {
$this->getEventManager()->on($instance);
}
return $instance;
}
}