protected function DiscoveryTrait::doGetDefinition

Gets a specific plugin definition.

Parameters

array $definitions: An array of the available plugin definitions.

string $plugin_id: A plugin id.

bool $exception_on_invalid: If TRUE, an invalid plugin ID will cause an exception to be thrown; if FALSE, NULL will be returned.

Return value

array|null A plugin definition, or NULL if the plugin ID is invalid and $exception_on_invalid is TRUE.

Throws

\Drupal\Component\Plugin\Exception\PluginNotFoundException Thrown if $plugin_id is invalid and $exception_on_invalid is TRUE.

File

core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php, line 43

Class

DiscoveryTrait

Namespace

Code

protected function doGetDefinition(array $definitions, $plugin_id, $exception_on_invalid) {

  // Avoid using a ternary that would create a copy of the array.
  if (isset($definitions[$plugin_id])) {
    return $definitions[$plugin_id];
  }
  elseif (!$exception_on_invalid) {
    return NULL;
  }
  $valid_ids = implode(', ', array_keys($definitions));
  throw new PluginNotFoundException($plugin_id, sprintf('The "%s" plugin does not exist. Valid plugin IDs for %s are: %s', $plugin_id, static::class, $valid_ids));
}