Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/migrate/src/Plugin/MigratePluginManager.php

@@ -0,0 +1,89 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\migrate\Plugin\MigratePluginManager.
+ */
+
+namespace Drupal\migrate\Plugin;
+
+use Drupal\Component\Plugin\Factory\DefaultFactory;
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\DefaultPluginManager;
+use Drupal\migrate\Entity\MigrationInterface;
+
+/**
+ * Manages migrate plugins.
+ *
+ * @see hook_migrate_info_alter()
+ * @see \Drupal\migrate\Annotation\MigrateSource
+ * @see \Drupal\migrate\Plugin\MigrateSourceInterface
+ * @see \Drupal\migrate\Plugin\migrate\source\SourcePluginBase
+ * @see \Drupal\migrate\Annotation\MigrateProcessPlugin
+ * @see \Drupal\migrate\Plugin\MigrateProcessInterface
+ * @see \Drupal\migrate\Plugin\migrate\process\ProcessPluginBase
+ * @see plugin_api
+ *
+ * @ingroup migration
+ */
+class MigratePluginManager extends DefaultPluginManager {
+
+  /**
+   * Constructs a MigratePluginManager object.
+   *
+   * @param string $type
+   *   The type of the plugin: row, source, process, destination, entity_field,
+   * id_map.
+   * @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 string $annotation
+   *   The annotation class name.
+   */
+  public function __construct($type, \Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, $annotation = 'Drupal\Component\Annotation\PluginID') {
+    $plugin_interface = isset($plugin_interface_map[$type]) ? $plugin_interface_map[$type] : NULL;
+    parent::__construct("Plugin/migrate/$type", $namespaces, $module_handler, $plugin_interface, $annotation);
+    $this->alterInfo('migrate_' . $type . '_info');
+    $this->setCacheBackend($cache_backend, 'migrate_plugins_' . $type);
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * A specific createInstance method is necessary to pass the migration on.
+   */
+  public function createInstance($plugin_id, array $configuration = array(), MigrationInterface $migration = NULL) {
+    $plugin_definition = $this->getDefinition($plugin_id);
+    $plugin_class = DefaultFactory::getPluginClass($plugin_id, $plugin_definition);
+    // If the plugin provides a factory method, pass the container to it.
+    if (is_subclass_of($plugin_class, 'Drupal\Core\Plugin\ContainerFactoryPluginInterface')) {
+      $plugin = $plugin_class::create(\Drupal::getContainer(), $configuration, $plugin_id, $plugin_definition, $migration);
+    }
+    else {
+      $plugin = new $plugin_class($configuration, $plugin_id, $plugin_definition, $migration);
+    }
+    return $plugin;
+  }
+
+  /**
+   * Helper for the plugin type to interface map.
+   *
+   * @return array
+   *   An array map from plugin type to interface.
+   */
+  protected function getPluginInterfaceMap() {
+    return [
+      'destination' => 'Drupal\migrate\Plugin\MigrateDestinationInterface',
+      'process' => 'Drupal\migrate\Plugin\MigrateProcessInterface',
+      'source' => 'Drupal\migrate\Plugin\MigrateSourceInterface',
+      'id_map' => 'Drupal\migrate\Plugin\MigrateIdMapInterface',
+      'entity_field' => 'Drupal\migrate\Plugin\MigrateEntityDestinationFieldInterface',
+    ];
+  }
+
+}