protected function PhpArrayContainer::createService in Service Container 7

Same name and namespace in other branches

1. 7.2 lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php \Drupal\Component\DependencyInjection\PhpArrayContainer::createService()

Creates a service from a service definition.

Parameters

array $definition: The service definition to create a service from.

string $id: The service identifier, necessary so it can be shared if its public.

Return value

object The service described by the service definition.

Throws

\Symfony\Component\DependencyInjection\Exception\RuntimeException Thrown when the service is a synthetic service.

\Symfony\Component\DependencyInjection\Exception\InvalidArgumentException Thrown when the configurator callable in $definition['configurator'] is not actually a callable.

\ReflectionException Thrown when the service class takes more than 10 parameters to construct, and cannot be instantiated.

Overrides Container::createService

1 call to PhpArrayContainer::createService()

PhpArrayContainer::resolveServicesAndParameters in lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php

Resolves arguments that represent services or variables to the real values.

File

lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php, line 53

Contains \Drupal\Component\DependencyInjection\PhpArrayContainer.

Class

PhpArrayContainer

Provides a container optimized for Drupal's needs.

Namespace

Drupal\Component\DependencyInjection

Code

protected function createService(array $definition, $id) {

  // This method is a verbatim copy of
  // \Drupal\Component\DependencyInjection\Container::createService
  // except for the following difference:
  // - There are no instanceof checks on \stdClass, which are used in the
  //   parent class to avoid resolving services and parameters when it is
  //   known from dumping that there is nothing to resolve.
  if (isset($definition['synthetic']) && $definition['synthetic'] === TRUE) {
    throw new RuntimeException(sprintf('You have requested a synthetic service ("%s"). The service container does not know how to construct this service. The service will need to be set before it is first used.', $id));
  }
  $arguments = array();
  if (isset($definition['arguments'])) {
    $arguments = $this
      ->resolveServicesAndParameters($definition['arguments']);
  }
  if (isset($definition['file'])) {
    $file = $this->frozen ? $definition['file'] : current($this
      ->resolveServicesAndParameters(array(
      $definition['file'],
    )));
    require_once $file;
  }
  if (isset($definition['factory'])) {
    $factory = $definition['factory'];
    if (is_array($factory)) {
      $factory = $this
        ->resolveServicesAndParameters(array(
        $factory[0],
        $factory[1],
      ));
    }
    elseif (!is_string($factory)) {
      throw new RuntimeException(sprintf('Cannot create service "%s" because of invalid factory', $id));
    }
    $service = call_user_func_array($factory, $arguments);
  }
  else {
    $class = $this->frozen ? $definition['class'] : current($this
      ->resolveServicesAndParameters(array(
      $definition['class'],
    )));
    $length = isset($definition['arguments_count']) ? $definition['arguments_count'] : count($arguments);

    // Optimize class instantiation for services with up to 10 parameters as
    // reflection is noticeably slow.
    switch ($length) {
      case 0:
        $service = new $class();
        break;
      case 1:
        $service = new $class($arguments[0]);
        break;
      case 2:
        $service = new $class($arguments[0], $arguments[1]);
        break;
      case 3:
        $service = new $class($arguments[0], $arguments[1], $arguments[2]);
        break;
      case 4:
        $service = new $class($arguments[0], $arguments[1], $arguments[2], $arguments[3]);
        break;
      case 5:
        $service = new $class($arguments[0], $arguments[1], $arguments[2], $arguments[3], $arguments[4]);
        break;
      case 6:
        $service = new $class($arguments[0], $arguments[1], $arguments[2], $arguments[3], $arguments[4], $arguments[5]);
        break;
      case 7:
        $service = new $class($arguments[0], $arguments[1], $arguments[2], $arguments[3], $arguments[4], $arguments[5], $arguments[6]);
        break;
      case 8:
        $service = new $class($arguments[0], $arguments[1], $arguments[2], $arguments[3], $arguments[4], $arguments[5], $arguments[6], $arguments[7]);
        break;
      case 9:
        $service = new $class($arguments[0], $arguments[1], $arguments[2], $arguments[3], $arguments[4], $arguments[5], $arguments[6], $arguments[7], $arguments[8]);
        break;
      case 10:
        $service = new $class($arguments[0], $arguments[1], $arguments[2], $arguments[3], $arguments[4], $arguments[5], $arguments[6], $arguments[7], $arguments[8], $arguments[9]);
        break;
      default:
        $r = new \ReflectionClass($class);
        $service = $r
          ->newInstanceArgs($arguments);
        break;
    }
  }

  // Share the service if it is public.
  if (!isset($definition['public']) || $definition['public'] !== FALSE) {

    // Forward compatibility fix for Symfony 2.8 update.
    if (!isset($definition['shared']) || $definition['shared'] !== FALSE) {
      $this->services[$id] = $service;
    }
  }
  if (isset($definition['calls'])) {
    foreach ($definition['calls'] as $call) {
      $method = $call[0];
      $arguments = array();
      if (!empty($call[1])) {
        $arguments = $call[1];
        $arguments = $this
          ->resolveServicesAndParameters($arguments);
      }
      call_user_func_array(array(
        $service,
        $method,
      ), $arguments);
    }
  }
  if (isset($definition['properties'])) {
    $definition['properties'] = $this
      ->resolveServicesAndParameters($definition['properties']);
    foreach ($definition['properties'] as $key => $value) {
      $service->{$key} = $value;
    }
  }
  if (isset($definition['configurator'])) {
    $callable = $definition['configurator'];
    if (is_array($callable)) {
      $callable = $this
        ->resolveServicesAndParameters($callable);
    }
    if (!is_callable($callable)) {
      throw new InvalidArgumentException(sprintf('The configurator for class "%s" is not a callable.', get_class($service)));
    }
    call_user_func($callable, $service);
  }
  return $service;
}