public function ContainerBuilder::get

Gets a service.

@api

Parameters

string $id The service identifier:

integer $invalidBehavior The behavior when the service does not exist:

Return value

object The associated service

Throws

InvalidArgumentException when no definitions are available

InactiveScopeException when the current scope is not active

LogicException when a circular dependency is detected

\Exception

Overrides Container::get

See also

Reference

File

drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ContainerBuilder.php, line 461

Class

ContainerBuilder

ContainerBuilder is a DI container that provides an API to easily describe services.

Namespace

Code

public function get($id, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE) {
  $id = strtolower($id);
  try {
    return parent::get($id, ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE);
  } catch (InactiveScopeException $e) {
    if (ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $invalidBehavior) {
      return null;
    }
    throw $e;
  } catch (InvalidArgumentException $e) {
    if (isset($this->loading[$id])) {
      throw new LogicException(sprintf('The service "%s" has a circular reference to itself.', $id), 0, $e);
    }
    if (!$this
      ->hasDefinition($id) && isset($this->aliasDefinitions[$id])) {
      return $this
        ->get($this->aliasDefinitions[$id]);
    }
    try {
      $definition = $this
        ->getDefinition($id);
    } catch (InvalidArgumentException $e) {
      if (ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $invalidBehavior) {
        return null;
      }
      throw $e;
    }
    $this->loading[$id] = true;
    try {
      $service = $this
        ->createService($definition, $id);
    } catch (\Exception $e) {
      unset($this->loading[$id]);
      if ($e instanceof InactiveScopeException && self::EXCEPTION_ON_INVALID_REFERENCE !== $invalidBehavior) {
        return null;
      }
      throw $e;
    }
    unset($this->loading[$id]);
    return $service;
  }
}