--- /dev/null
+<?php
+
+namespace Drupal\entityqueue;
+
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\DefaultPluginManager;
+
+/**
+ * Provides an EntityQueueHandler plugin manager.
+ */
+class EntityQueueHandlerManager extends DefaultPluginManager {
+
+ /**
+ * Constructs a new EntityQueueHandlerManager.
+ *
+ * @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.
+ */
+ public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
+ parent::__construct('Plugin/EntityQueueHandler', $namespaces, $module_handler, null, 'Drupal\entityqueue\Annotation\EntityQueueHandler');
+
+ $this->setCacheBackend($cache_backend, 'entityqueuehandler');
+ }
+
+ /**
+ * Gets all handlers.
+ *
+ * @return array
+ * Returns all entityqueue handlers.
+ */
+ public function getAllEntityQueueHandlers() {
+ $handlers = [];
+ foreach ($this->getDefinitions() as $plugin_id => $plugin_def) {
+ $handlers[$plugin_id] = $plugin_def['title'];
+ }
+ asort($handlers);
+
+ return $handlers;
+ }
+
+}