class ImageToolkitOperationManager in Zircon Profile 8

Same name and namespace in other branches

8.0 core/lib/Drupal/Core/ImageToolkit/ImageToolkitOperationManager.php \Drupal\Core\ImageToolkit\ImageToolkitOperationManager

Manages toolkit operation plugins.

View source

class ImageToolkitOperationManager extends DefaultPluginManager implements ImageToolkitOperationManagerInterface {

  /**
   * A logger instance.
   *
   * @var \Psr\Log\LoggerInterface
   */
  protected $logger;

  /**
   * Constructs the ImageToolkitOperationManager object.
   *
   * @param \Traversable $namespaces
   *   An object that implements \Traversable which contains the root paths
   *   keyed by the corresponding namespace to look for plugin implementations.
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
   *   Cache backend instance to use.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler to invoke the alter hook with.
   * @param \Psr\Log\LoggerInterface $logger
   *   A logger instance.
   */
  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, LoggerInterface $logger) {
    parent::__construct('Plugin/ImageToolkit/Operation', $namespaces, $module_handler, 'Drupal\\Core\\ImageToolkit\\ImageToolkitOperationInterface', 'Drupal\\Core\\ImageToolkit\\Annotation\\ImageToolkitOperation');
    $this
      ->alterInfo('image_toolkit_operation');
    $this
      ->setCacheBackend($cache_backend, 'image_toolkit_operation_plugins');
    $this->logger = $logger;
  }

  /**
   * Returns the plugin ID for a given toolkit and operation.
   *
   * @param string $toolkit_id
   *   The toolkit plugin ID.
   * @param string $operation
   *   The operation (e.g. "crop").
   *
   * @return string
   *   The plugin ID.
   *
   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
   *   When no plugin is available.
   */
  protected function getToolkitOperationPluginId($toolkit_id, $operation) {
    $definitions = $this
      ->getDefinitions();
    $definitions = array_filter($definitions, function ($definition) use ($toolkit_id, $operation) {
      return $definition['toolkit'] == $toolkit_id && $definition['operation'] == $operation;
    });
    if (!$definitions) {
      $message = SafeMarkup::format("No image operation plugin for '@toolkit' toolkit and '@operation' operation.", array(
        '@toolkit' => $toolkit_id,
        '@operation' => $operation,
      ));
      throw new PluginNotFoundException($toolkit_id . '.' . $operation, $message);
    }
    else {

      // Pickup the first plugin found.
      // @todo In https://www.drupal.org/node/2110591 we'll return here the UI
      //   selected plugin or the first found if missed.
      $definition = reset($definitions);
      return $definition['id'];
    }
  }

  /**
   * {@inheritdoc}
   */
  public function createInstance($plugin_id, array $configuration = array(), ImageToolkitInterface $toolkit = NULL) {
    $plugin_definition = $this
      ->getDefinition($plugin_id);
    $plugin_class = DefaultFactory::getPluginClass($plugin_id, $plugin_definition);
    return new $plugin_class($configuration, $plugin_id, $plugin_definition, $toolkit, $this->logger);
  }

  /**
   * {@inheritdoc}
   */
  public function getToolkitOperation(ImageToolkitInterface $toolkit, $operation) {
    $plugin_id = $this
      ->getToolkitOperationPluginId($toolkit
      ->getPluginId(), $operation);
    return $this
      ->createInstance($plugin_id, array(), $toolkit);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DefaultPluginManager::$alterHook	protected	property	Name of the alter hook if one should be invoked.
DefaultPluginManager::$cacheKey	protected	property	The cache key.
DefaultPluginManager::$cacheTags	protected	property	An array of cache tags to use for the cached definitions.
DefaultPluginManager::$defaults	protected	property	A set of defaults to be referenced by $this->processDefinition() if additional processing of plugins is necessary or helpful for development purposes.	5
DefaultPluginManager::$moduleHandler	protected	property	The module handler to invoke the alter hook.
DefaultPluginManager::$namespaces	protected	property	An object that implements \Traversable which contains the root paths keyed by the corresponding namespace to look for plugin implementations.
DefaultPluginManager::$pluginDefinitionAnnotationName	protected	property	The name of the annotation that contains the plugin definition.
DefaultPluginManager::$pluginInterface	protected	property	The interface each plugin should implement.
DefaultPluginManager::$subdir	protected	property	The subdirectory within a namespace to look for plugins, or FALSE if the plugins are in the top level of the namespace.
DefaultPluginManager::alterDefinitions	protected	function	Invokes the hook to alter the definitions if the alter hook is set.	1
DefaultPluginManager::alterInfo	protected	function	Initializes the alter hook.
DefaultPluginManager::clearCachedDefinitions	public	function	Clears static and persistent plugin definition caches. Overrides CachedDiscoveryInterface::clearCachedDefinitions	4
DefaultPluginManager::findDefinitions	protected	function	Finds plugin definitions.	2
DefaultPluginManager::getCachedDefinitions	protected	function	Returns the cached plugin definitions of the decorated discovery class.
DefaultPluginManager::getDefinitions	public	function	Gets the definition of all plugins for this type. Overrides DiscoveryTrait::getDefinitions	2
DefaultPluginManager::getDiscovery	protected	function	Gets the plugin discovery. Overrides PluginManagerBase::getDiscovery	7
DefaultPluginManager::getFactory	protected	function	Gets the plugin factory. Overrides PluginManagerBase::getFactory
DefaultPluginManager::processDefinition	public	function	Performs extra processing on plugin definitions.	10
DefaultPluginManager::providerExists	protected	function	Determines if the provider of a definition exists.	1
DefaultPluginManager::setCacheBackend	public	function	Initialize the cache backend.
DefaultPluginManager::setCachedDefinitions	protected	function	Sets a cache of plugin definitions for the decorated discovery class.
DefaultPluginManager::useCaches	public	function	Disable the use of caches. Overrides CachedDiscoveryInterface::useCaches	1
DiscoveryCachedTrait::$definitions	protected	property	Cached definitions array.	1
DiscoveryCachedTrait::getDefinition	public	function	Overrides DiscoveryTrait::getDefinition	3
DiscoveryTrait::doGetDefinition	protected	function	Gets a specific plugin definition.
DiscoveryTrait::hasDefinition	public	function
ImageToolkitOperationManager::$logger	protected	property	A logger instance.
ImageToolkitOperationManager::createInstance	public	function	Creates a pre-configured instance of a plugin. Overrides PluginManagerBase::createInstance
ImageToolkitOperationManager::getToolkitOperation	public	function	Returns a toolkit operation plugin instance. Overrides ImageToolkitOperationManagerInterface::getToolkitOperation
ImageToolkitOperationManager::getToolkitOperationPluginId	protected	function	Returns the plugin ID for a given toolkit and operation.
ImageToolkitOperationManager::__construct	public	function	Constructs the ImageToolkitOperationManager object. Overrides DefaultPluginManager::__construct
PluginManagerBase::$discovery	protected	property	The object that discovers plugins managed by this manager.
PluginManagerBase::$factory	protected	property	The object that instantiates plugins managed by this manager.
PluginManagerBase::$mapper	protected	property	The object that returns the preconfigured plugin instance appropriate for a particular runtime condition.
PluginManagerBase::getInstance	public	function	Gets a preconfigured instance of a plugin. Overrides MapperInterface::getInstance	7
UseCacheBackendTrait::$cacheBackend	protected	property	Cache backend instance.
UseCacheBackendTrait::$useCaches	protected	property	Flag whether caches should be used or skipped.
UseCacheBackendTrait::cacheGet	protected	function	Fetches from the cache backend, respecting the use caches flag.
UseCacheBackendTrait::cacheSet	protected	function	Stores data in the persistent cache, respecting the use caches flag.

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class ImageToolkitOperationManager in Zircon Profile 8

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