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<?php |
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/** |
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* @file |
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* Contains \Drupal\Component\Plugin\Discovery\DiscoveryTrait. |
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*/ |
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namespace Drupal\Component\Plugin\Discovery; |
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use Drupal\Component\Plugin\Exception\PluginNotFoundException; |
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/** |
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* @see Drupal\Component\Plugin\Discovery\DiscoveryInterface |
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*/ |
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trait DiscoveryTrait { |
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/** |
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* {@inheritdoc} |
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*/ |
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abstract public function getDefinitions(); |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getDefinition($plugin_id, $exception_on_invalid = TRUE) { |
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$definitions = $this->getDefinitions(); |
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return $this->doGetDefinition($definitions, $plugin_id, $exception_on_invalid); |
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} |
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/** |
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* Gets a specific plugin definition. |
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* |
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* @param array $definitions |
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* An array of the available plugin definitions. |
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* @param string $plugin_id |
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* A plugin id. |
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* @param bool $exception_on_invalid |
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* (optional) If TRUE, an invalid plugin ID will throw an exception. |
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* Defaults to FALSE. |
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* |
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* @return array|null |
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* A plugin definition, or NULL if the plugin ID is invalid and |
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* $exception_on_invalid is TRUE. |
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* |
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* @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException |
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* Thrown if $plugin_id is invalid and $exception_on_invalid is TRUE. |
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*/ |
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protected function doGetDefinition(array $definitions, $plugin_id, $exception_on_invalid) { |
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// Avoid using a ternary that would create a copy of the array. |
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if (isset($definitions[$plugin_id])) { |
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return $definitions[$plugin_id]; |
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} |
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elseif (!$exception_on_invalid) { |
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return NULL; |
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} |
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throw new PluginNotFoundException($plugin_id, sprintf('The "%s" plugin does not exist.', $plugin_id)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function hasDefinition($plugin_id) { |
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return (bool) $this->getDefinition($plugin_id, FALSE); |
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} |
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} |
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LionsAd /
service_container
