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<?php | |
/** | |
* @file | |
* Contains \Drupal\Component\Plugin\PluginManagerBase. | |
*/ | |
namespace Drupal\Component\Plugin; | |
use Drupal\Component\Plugin\Discovery\DiscoveryTrait; | |
use Drupal\Component\Plugin\Exception\PluginNotFoundException; | |
/** | |
* Base class for plugin managers. | |
*/ | |
abstract class PluginManagerBase implements PluginManagerInterface { | |
use DiscoveryTrait; | |
/** | |
* The object that discovers plugins managed by this manager. | |
* | |
* @var \Drupal\Component\Plugin\Discovery\DiscoveryInterface | |
*/ | |
protected $discovery; | |
/** | |
* The object that instantiates plugins managed by this manager. | |
* | |
* @var \Drupal\Component\Plugin\Factory\FactoryInterface | |
*/ | |
protected $factory; | |
/** | |
* The object that returns the preconfigured plugin instance appropriate for a particular runtime condition. | |
* | |
* @var \Drupal\Component\Plugin\Mapper\MapperInterface | |
*/ | |
protected $mapper; | |
/** | |
* Gets the plugin discovery. | |
* | |
* @return \Drupal\Component\Plugin\Discovery\DiscoveryInterface | |
*/ | |
protected function getDiscovery() { | |
return $this->discovery; | |
} | |
/** | |
* Gets the plugin factory. | |
* | |
* @return \Drupal\Component\Plugin\Factory\FactoryInterface | |
*/ | |
protected function getFactory() { | |
return $this->factory; | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getDefinition($plugin_id, $exception_on_invalid = TRUE) { | |
return $this->getDiscovery()->getDefinition($plugin_id, $exception_on_invalid); | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getDefinitions() { | |
return $this->getDiscovery()->getDefinitions(); | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function createInstance($plugin_id, array $configuration = array()) { | |
// If this PluginManager has fallback capabilities catch | |
// PluginNotFoundExceptions. | |
if ($this instanceof FallbackPluginManagerInterface) { | |
try { | |
return $this->getFactory()->createInstance($plugin_id, $configuration); | |
} | |
catch (PluginNotFoundException $e) { | |
$fallback_id = $this->getFallbackPluginId($plugin_id, $configuration); | |
return $this->getFactory()->createInstance($fallback_id, $configuration); | |
} | |
} | |
else { | |
return $this->getFactory()->createInstance($plugin_id, $configuration); | |
} | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getInstance(array $options) { | |
return $this->mapper->getInstance($options); | |
} | |
} |