PHP ControllerResolverInterface::getControllerFromDefinition方法代码示例

 /**
  * Checks access for the account and route using the custom access checker.
  *
  * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
  *   The route match object to be checked.
  * @param \Drupal\Core\Session\AccountInterface $account
  *   The account being checked.
  *
  * @return \Drupal\Core\Access\AccessResultInterface
  *   The access result.
  */
 public function access(Route $route, RouteMatchInterface $route_match, AccountInterface $account)
 {
     $callable = $this->controllerResolver->getControllerFromDefinition($route->getRequirement('_custom_access'));
     $arguments_resolver = $this->argumentsResolverFactory->getArgumentsResolver($route_match, $account);
     $arguments = $arguments_resolver->getArguments($callable);
     return call_user_func_array($callable, $arguments);
 }

 /**
  * {@inheritdoc}
  */
 public function getTitle(Request $request, Route $route)
 {
     $route_title = NULL;
     // A dynamic title takes priority. Route::getDefault() returns NULL if the
     // named default is not set.  By testing the value directly, we also avoid
     // trying to use empty values.
     if ($callback = $route->getDefault('_title_callback')) {
         $callable = $this->controllerResolver->getControllerFromDefinition($callback);
         $arguments = $this->controllerResolver->getArguments($request, $callable);
         $route_title = call_user_func_array($callable, $arguments);
     } elseif ($title = $route->getDefault('_title')) {
         $options = array();
         if ($context = $route->getDefault('_title_context')) {
             $options['context'] = $context;
         }
         $args = array();
         if ($raw_parameters = $request->attributes->get('_raw_variables')) {
             foreach ($raw_parameters->all() as $key => $value) {
                 $args['@' . $key] = $value;
                 $args['%' . $key] = $value;
             }
         }
         if ($title_arguments = $route->getDefault('_title_arguments')) {
             $args = array_merge($args, (array) $title_arguments);
         }
         // Fall back to a static string from the route.
         $route_title = $this->t($title, $args, $options);
     }
     return $route_title;
 }

 /**
  * Returns the result of invoking the sub-controller.
  *
  * @param \Symfony\Component\HttpFoundation\Request $request
  *   The request object.
  * @param mixed $controller_definition
  *   A controller definition string, or a callable object/closure.
  *
  * @return mixed
  *   The result of invoking the controller. Render arrays, strings, HtmlPage,
  *   and HtmlFragment objects are possible.
  */
 public function getContentResult(Request $request, $controller_definition)
 {
     if ($controller_definition instanceof \Closure) {
         $callable = $controller_definition;
     } else {
         $callable = $this->controllerResolver->getControllerFromDefinition($controller_definition);
     }
     $arguments = $this->controllerResolver->getArguments($request, $callable);
     $page_content = call_user_func_array($callable, $arguments);
     return $page_content;
 }

 /**
  * {@inheritdoc}
  */
 public function rebuild()
 {
     if ($this->building) {
         throw new \RuntimeException('Recursive router rebuild detected.');
     }
     if (!$this->lock->acquire('router_rebuild')) {
         // Wait for another request that is already doing this work.
         // We choose to block here since otherwise the routes might not be
         // available, resulting in a 404.
         $this->lock->wait('router_rebuild');
         return FALSE;
     }
     $this->building = TRUE;
     $collection = new RouteCollection();
     foreach ($this->getRouteDefinitions() as $routes) {
         // The top-level 'routes_callback' is a list of methods in controller
         // syntax, see \Drupal\Core\Controller\ControllerResolver. These methods
         // should return a set of \Symfony\Component\Routing\Route objects, either
         // in an associative array keyed by the route name, which will be iterated
         // over and added to the collection for this provider, or as a new
         // \Symfony\Component\Routing\RouteCollection object, which will be added
         // to the collection.
         if (isset($routes['route_callbacks'])) {
             foreach ($routes['route_callbacks'] as $route_callback) {
                 $callback = $this->controllerResolver->getControllerFromDefinition($route_callback);
                 if ($callback_routes = call_user_func($callback)) {
                     // If a RouteCollection is returned, add the whole collection.
                     if ($callback_routes instanceof RouteCollection) {
                         $collection->addCollection($callback_routes);
                     } else {
                         foreach ($callback_routes as $name => $callback_route) {
                             $collection->add($name, $callback_route);
                         }
                     }
                 }
             }
             unset($routes['route_callbacks']);
         }
         foreach ($routes as $name => $route_info) {
             $route_info += array('defaults' => array(), 'requirements' => array(), 'options' => array());
             $route = new Route($route_info['path'], $route_info['defaults'], $route_info['requirements'], $route_info['options']);
             $collection->add($name, $route);
         }
     }
     // DYNAMIC is supposed to be used to add new routes based upon all the
     // static defined ones.
     $this->dispatcher->dispatch(RoutingEvents::DYNAMIC, new RouteBuildEvent($collection));
     // ALTER is the final step to alter all the existing routes. We cannot stop
     // people from adding new routes here, but we define two separate steps to
     // make it clear.
     $this->dispatcher->dispatch(RoutingEvents::ALTER, new RouteBuildEvent($collection));
     $this->checkProvider->setChecks($collection);
     $this->dumper->addRoutes($collection);
     $this->dumper->dump();
     $this->lock->release('router_rebuild');
     $this->dispatcher->dispatch(RoutingEvents::FINISHED, new Event());
     $this->building = FALSE;
     $this->rebuildNeeded = FALSE;
     return TRUE;
 }

 /**
  * Creates a controller instance using route defaults.
  *
  * By design we cannot support all possible routes, but just the ones which
  * use the defaults provided by core, which are _content, _controller
  * and _form.
  *
  * @param array $defaults
  *   The default values provided by the route.
  *
  * @return array|null
  *   Returns the controller instance if it is possible to instantiate it, NULL
  */
 protected function getController(array $defaults)
 {
     $controller = NULL;
     if (isset($defaults['_content'])) {
         $controller = $this->controllerResolver->getControllerFromDefinition($defaults['_content']);
     }
     if (isset($defaults['_controller'])) {
         $controller = $this->controllerResolver->getControllerFromDefinition($defaults['_controller']);
     }
     if (isset($defaults['_form'])) {
         $form_arg = $defaults['_form'];
         // Check if the class exists first as the class resolver will throw an
         // exception if it doesn't. This also means a service cannot be used here.
         if (class_exists($form_arg)) {
             $controller = array($this->classResolver->getInstanceFromDefinition($form_arg), 'buildForm');
         }
     }
     return $controller;
 }

 /**
  * {@inheritdoc}
  */
 public function generateCachePlaceholder($callback, array &$context)
 {
     if (is_string($callback) && strpos($callback, '::') === FALSE) {
         $callable = $this->controllerResolver->getControllerFromDefinition($callback);
     } else {
         $callable = $callback;
     }
     if (!is_callable($callable)) {
         throw new \InvalidArgumentException('$callable must be a callable function or of the form service_id:method.');
     }
     // Generate a unique token if one is not already provided.
     $context += ['token' => Crypt::randomBytesBase64(55)];
     return '<drupal-render-cache-placeholder callback="' . $callback . '" token="' . $context['token'] . '"></drupal-render-cache-placeholder>';
 }

 /**
  * {@inheritdoc}
  */
 public function transform(array $tree, array $manipulators)
 {
     foreach ($manipulators as $manipulator) {
         $callable = $manipulator['callable'];
         $callable = $this->controllerResolver->getControllerFromDefinition($callable);
         // Prepare the arguments for the menu tree manipulator callable; the first
         // argument is always the menu link tree.
         if (isset($manipulator['args'])) {
             array_unshift($manipulator['args'], $tree);
             $tree = call_user_func_array($callable, $manipulator['args']);
         } else {
             $tree = call_user_func($callable, $tree);
         }
     }
     return $tree;
 }

 /**
  * Builds all permissions provided by .permissions.yml files.
  *
  * @return array[]
  *   Each return permission is an array with the following keys:
  *   - title: The title of the permission.
  *   - description: The description of the permission, defaults to NULL.
  *   - provider: The provider of the permission.
  */
 protected function buildPermissionsYaml()
 {
     $all_permissions = array();
     $all_callback_permissions = array();
     foreach ($this->getYamlDiscovery()->findAll() as $provider => $permissions) {
         // The top-level 'permissions_callback' is a list of methods in controller
         // syntax, see \Drupal\Core\Controller\ControllerResolver. These methods
         // should return an array of permissions in the same structure.
         if (isset($permissions['permission_callbacks'])) {
             foreach ($permissions['permission_callbacks'] as $permission_callback) {
                 $callback = $this->controllerResolver->getControllerFromDefinition($permission_callback);
                 if ($callback_permissions = call_user_func($callback)) {
                     // Add any callback permissions to the array of permissions. Any
                     // defaults can then get processed below.
                     foreach ($callback_permissions as $name => $callback_permission) {
                         if (!is_array($callback_permission)) {
                             $callback_permission = array('title' => $callback_permission);
                         }
                         $callback_permission += array('description' => NULL);
                         $callback_permission['provider'] = $provider;
                         $all_callback_permissions[$name] = $callback_permission;
                     }
                 }
             }
             unset($permissions['permission_callbacks']);
         }
         foreach ($permissions as &$permission) {
             if (!is_array($permission)) {
                 $permission = array('title' => $permission);
             }
             $permission['title'] = $this->t($permission['title']);
             $permission['description'] = isset($permission['description']) ? $this->t($permission['description']) : NULL;
             $permission['provider'] = $provider;
         }
         $all_permissions += $permissions;
     }
     return $all_permissions + $all_callback_permissions;
 }

 /**
  * See the docs for ::render().
  */
 protected function doRender(&$elements, $is_root_call = FALSE)
 {
     if (!isset($elements['#access']) && isset($elements['#access_callback'])) {
         if (is_string($elements['#access_callback']) && strpos($elements['#access_callback'], '::') === FALSE) {
             $elements['#access_callback'] = $this->controllerResolver->getControllerFromDefinition($elements['#access_callback']);
         }
         $elements['#access'] = call_user_func($elements['#access_callback'], $elements);
     }
     // Early-return nothing if user does not have access.
     if (empty($elements) || isset($elements['#access']) && !$elements['#access']) {
         return '';
     }
     // Do not print elements twice.
     if (!empty($elements['#printed'])) {
         return '';
     }
     if (!isset(static::$stack)) {
         static::$stack = new \SplStack();
     }
     static::$stack->push(new BubbleableMetadata());
     // Set the bubbleable rendering metadata that has configurable defaults, if:
     // - this is the root call, to ensure that the final render array definitely
     //   has these configurable defaults, even when no subtree is render cached.
     // - this is a render cacheable subtree, to ensure that the cached data has
     //   the configurable defaults (which may affect the ID and invalidation).
     if ($is_root_call || isset($elements['#cache']['keys'])) {
         $required_cache_contexts = $this->rendererConfig['required_cache_contexts'];
         if (isset($elements['#cache']['contexts'])) {
             $elements['#cache']['contexts'] = Cache::mergeContexts($elements['#cache']['contexts'], $required_cache_contexts);
         } else {
             $elements['#cache']['contexts'] = $required_cache_contexts;
         }
     }
     // Try to fetch the prerendered element from cache, replace any placeholders
     // and return the final markup.
     if (isset($elements['#cache']['keys'])) {
         $cached_element = $this->renderCache->get($elements);
         if ($cached_element !== FALSE) {
             $elements = $cached_element;
             // Only when we're in a root (non-recursive) Renderer::render() call,
             // placeholders must be processed, to prevent breaking the render cache
             // in case of nested elements with #cache set.
             if ($is_root_call) {
                 $this->replacePlaceholders($elements);
             }
             // Mark the element markup as safe. If we have cached children, we need
             // to mark them as safe too. The parent markup contains the child
             // markup, so if the parent markup is safe, then the markup of the
             // individual children must be safe as well.
             $elements['#markup'] = SafeMarkup::set($elements['#markup']);
             if (!empty($elements['#cache_properties'])) {
                 foreach (Element::children($cached_element) as $key) {
                     SafeMarkup::set($cached_element[$key]['#markup']);
                 }
             }
             // The render cache item contains all the bubbleable rendering metadata
             // for the subtree.
             $this->updateStack($elements);
             // Render cache hit, so rendering is finished, all necessary info
             // collected!
             $this->bubbleStack();
             return $elements['#markup'];
         }
     }
     // Two-tier caching: track pre-bubbling elements' #cache for later
     // comparison.
     // @see \Drupal\Core\Render\RenderCacheInterface::get()
     // @see \Drupal\Core\Render\RenderCacheInterface::set()
     $pre_bubbling_elements = [];
     $pre_bubbling_elements['#cache'] = isset($elements['#cache']) ? $elements['#cache'] : [];
     // If the default values for this element have not been loaded yet, populate
     // them.
     if (isset($elements['#type']) && empty($elements['#defaults_loaded'])) {
         $elements += $this->elementInfo->getInfo($elements['#type']);
     }
     // First validate the usage of #lazy_builder; both of the next if-statements
     // use it if available.
     if (isset($elements['#lazy_builder'])) {
         // @todo Convert to assertions once https://www.drupal.org/node/2408013
         //   lands.
         if (!is_array($elements['#lazy_builder'])) {
             throw new \DomainException('The #lazy_builder property must have an array as a value.');
         }
         if (count($elements['#lazy_builder']) !== 2) {
             throw new \DomainException('The #lazy_builder property must have an array as a value, containing two values: the callback, and the arguments for the callback.');
         }
         if (count($elements['#lazy_builder'][1]) !== count(array_filter($elements['#lazy_builder'][1], function ($v) {
             return is_null($v) || is_scalar($v);
         }))) {
             throw new \DomainException("A #lazy_builder callback's context may only contain scalar values or NULL.");
         }
         $children = Element::children($elements);
         if ($children) {
             throw new \DomainException(sprintf('When a #lazy_builder callback is specified, no children can exist; all children must be generated by the #lazy_builder callback. You specified the following children: %s.', implode(', ', $children)));
         }
         $supported_keys = ['#lazy_builder', '#cache', '#create_placeholder', '#weight', '#printed'];
         $unsupported_keys = array_diff(array_keys($elements), $supported_keys);
//.........这里部分代码省略.........