Returns a preconfigured instance of a plugin.
string $plugin_id: The id of the plugin being instantiated.
array $configuration: An array of configuration relevant to the plugin instance.
object A fully configured plugin instance.
Overrides PluginManagerBase::createInstance
public function createInstance($plugin_id, array $configuration = array(), FilterBag $filter_bag = NULL) {
$plugin_definition = $this->discovery
->getDefinition($plugin_id);
$plugin_class = DefaultFactory::getPluginClass($plugin_id, $plugin_definition);
return new $plugin_class($configuration, $plugin_id, $plugin_definition, $filter_bag);
}