Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\migrate\Plugin;
Chris@0: 
Chris@0: use Drupal\Core\Cache\CacheBackendInterface;
Chris@0: use Drupal\Core\Extension\ModuleHandlerInterface;
Chris@0: use Drupal\migrate\Plugin\Discovery\AnnotatedClassDiscoveryAutomatedProviders;
Chris@0: use Drupal\Core\Plugin\Discovery\ContainerDerivativeDiscoveryDecorator;
Chris@0: use Drupal\migrate\Plugin\Discovery\ProviderFilterDecorator;
Chris@0: 
Chris@0: /**
Chris@0:  * Plugin manager for migrate source plugins.
Chris@0:  *
Chris@0:  * @see \Drupal\migrate\Plugin\MigrateSourceInterface
Chris@0:  * @see \Drupal\migrate\Plugin\migrate\source\SourcePluginBase
Chris@0:  * @see \Drupal\migrate\Annotation\MigrateSource
Chris@0:  * @see plugin_api
Chris@0:  *
Chris@0:  * @ingroup migration
Chris@0:  */
Chris@0: class MigrateSourcePluginManager extends MigratePluginManager {
Chris@0: 
Chris@0:   /**
Chris@0:    * MigrateSourcePluginManager constructor.
Chris@0:    *
Chris@0:    * @param string $type
Chris@0:    *   The type of the plugin: row, source, process, destination, entity_field,
Chris@0:    *   id_map.
Chris@0:    * @param \Traversable $namespaces
Chris@0:    *   An object that implements \Traversable which contains the root paths
Chris@0:    *   keyed by the corresponding namespace to look for plugin implementations.
Chris@0:    * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
Chris@0:    *   Cache backend instance to use.
Chris@0:    * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
Chris@0:    *   The module handler to invoke the alter hook with.
Chris@0:    */
Chris@0:   public function __construct($type, \Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
Chris@0:     parent::__construct($type, $namespaces, $cache_backend, $module_handler, 'Drupal\migrate\Annotation\MigrateSource');
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   protected function getDiscovery() {
Chris@0:     if (!$this->discovery) {
Chris@0:       $discovery = new AnnotatedClassDiscoveryAutomatedProviders($this->subdir, $this->namespaces, $this->pluginDefinitionAnnotationName, $this->additionalAnnotationNamespaces);
Chris@0:       $this->discovery = new ContainerDerivativeDiscoveryDecorator($discovery);
Chris@0:     }
Chris@0:     return $this->discovery;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Finds plugin definitions.
Chris@0:    *
Chris@0:    * @return array
Chris@0:    *   List of definitions to store in cache.
Chris@0:    *
Chris@0:    * @todo This is a temporary solution to the fact that migration source
Chris@0:    *   plugins have more than one provider. This functionality will be moved to
Chris@0:    *   core in https://www.drupal.org/node/2786355.
Chris@0:    */
Chris@0:   protected function findDefinitions() {
Chris@0:     $definitions = $this->getDiscovery()->getDefinitions();
Chris@0:     foreach ($definitions as $plugin_id => &$definition) {
Chris@0:       $this->processDefinition($definition, $plugin_id);
Chris@0:     }
Chris@0:     $this->alterDefinitions($definitions);
Chris@0:     return ProviderFilterDecorator::filterDefinitions($definitions, function ($provider) {
Chris@0:       return $this->providerExists($provider);
Chris@0:     });
Chris@0:   }
Chris@0: 
Chris@0: }