/**
* Creates the discovery object.
*
* @param string|bool $subdir
* The plugin's subdirectory, for example Plugin/views/filter.
* @param \Traversable $namespaces
* An object that implements \Traversable which contains the root paths
* keyed by the corresponding namespace to look for plugin implementations.
* @param string|null $plugin_interface
* (optional) The interface each plugin should implement.
* @param string $plugin_definition_annotation_name
* (optional) The name of the annotation that contains the plugin definition.
* Defaults to 'Drupal\Component\Annotation\Plugin'.
*/
public function __construct($subdir, \Traversable $namespaces, $plugin_interface = NULL, $plugin_definition_annotation_name = 'Drupal\\Component\\Annotation\\Plugin')
{
$this->subdir = $subdir;
$this->namespaces = $namespaces;
$this->pluginDefinitionAnnotationName = $plugin_definition_annotation_name;
$this->pluginInterface = $plugin_interface;
// Add the file cache prefix.
$configuration['default'] = ['class' => '\\Drupal\\Component\\FileCache\\FileCache', 'cache_backend_class' => NULL, 'cache_backend_configuration' => []];
// @todo Use extension_loaded('apcu') for non-testbot
// https://www.drupal.org/node/2447753.
if (function_exists('apc_fetch')) {
$configuration['default']['cache_backend_class'] = '\\Drupal\\Component\\FileCache\\ApcuFileCacheBackend';
}
FileCacheFactory::setConfiguration($configuration);
$identifier = 'file_cache';
FileCacheFactory::setPrefix('drupal.' . $identifier . '.' . hash_hmac('sha256', $identifier, drupal_get_hash_salt()));
}
/**
* Set a secure componentId based on the options values and the drupal private key.
*/
protected function setComponentID()
{
$base64 = implode('@', $this->getOptions());
$base64 = base64_encode($base64);
$this->_componentID = $this->pluginType['name'] . md5($base64 . drupal_get_private_key() . drupal_get_hash_salt());
}
