/**
* {@inheritDoc}
*/
public function getListenersForClass($instance)
{
// ignore classes which don't implement the subscriber
if (!$instance instanceof EventSubscriber) {
return array();
}
// grab all the entries returned by getEventListeners() and parse them
$listeners = array();
foreach ($instance->getEventListeners() as $i => $item) {
// check the definition is in a valid format
if (!is_array($item)) {
throw Exception::invalidListenerDefinition(get_class($instance));
}
// check all data is present
if (!isset($item['event'])) {
throw Exception::incompleteListenerDefinition(get_class($instance), 'missing event field');
}
if (!isset($item['method'])) {
throw Exception::incompleteListenerDefinition(get_class($instance), 'missing method field');
}
// get the information
$listener = array('event' => $item['event'], 'namespace' => null, 'method' => $item['method']);
if (isset($item['namespace'])) {
$listener['namespace'] = $item['namespace'];
}
$listeners[] = $listener;
}
return $listeners;
}
