/usr/share/php/Symfony/Bridge/Doctrine/ContainerAwareEventManager.php is in php-symfony-doctrine-bridge 3.4.6+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | <?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bridge\Doctrine;
use Doctrine\Common\EventArgs;
use Doctrine\Common\EventManager;
use Psr\Container\ContainerInterface;
/**
* Allows lazy loading of listener services.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class ContainerAwareEventManager extends EventManager
{
/**
* Map of registered listeners.
*
* <event> => <listeners>
*/
private $listeners = array();
private $initialized = array();
private $container;
public function __construct(ContainerInterface $container)
{
$this->container = $container;
}
/**
* Dispatches an event to all registered listeners.
*
* @param string $eventName The name of the event to dispatch. The name of the event is
* the name of the method that is invoked on listeners.
* @param EventArgs $eventArgs The event arguments to pass to the event handlers/listeners.
* If not supplied, the single empty EventArgs instance is used.
*
* @return bool
*/
public function dispatchEvent($eventName, EventArgs $eventArgs = null)
{
if (isset($this->listeners[$eventName])) {
$eventArgs = null === $eventArgs ? EventArgs::getEmptyInstance() : $eventArgs;
$initialized = isset($this->initialized[$eventName]);
foreach ($this->listeners[$eventName] as $hash => $listener) {
if (!$initialized && is_string($listener)) {
$this->listeners[$eventName][$hash] = $listener = $this->container->get($listener);
}
$listener->$eventName($eventArgs);
}
$this->initialized[$eventName] = true;
}
}
/**
* Gets the listeners of a specific event or all listeners.
*
* @param string $event The name of the event
*
* @return array The event listeners for the specified event, or all event listeners
*/
public function getListeners($event = null)
{
return $event ? $this->listeners[$event] : $this->listeners;
}
/**
* Checks whether an event has any registered listeners.
*
* @param string $event
*
* @return bool TRUE if the specified event has any listeners, FALSE otherwise
*/
public function hasListeners($event)
{
return isset($this->listeners[$event]) && $this->listeners[$event];
}
/**
* Adds an event listener that listens on the specified events.
*
* @param string|array $events The event(s) to listen on
* @param object|string $listener The listener object
*
* @throws \RuntimeException
*/
public function addEventListener($events, $listener)
{
if (is_string($listener)) {
if ($this->initialized) {
throw new \RuntimeException('Adding lazy-loading listeners after construction is not supported.');
}
$hash = '_service_'.$listener;
} else {
// Picks the hash code related to that listener
$hash = spl_object_hash($listener);
}
foreach ((array) $events as $event) {
// Overrides listener if a previous one was associated already
// Prevents duplicate listeners on same event (same instance only)
$this->listeners[$event][$hash] = $listener;
}
}
/**
* Removes an event listener from the specified events.
*
* @param string|array $events
* @param object|string $listener
*/
public function removeEventListener($events, $listener)
{
if (is_string($listener)) {
$hash = '_service_'.$listener;
} else {
// Picks the hash code related to that listener
$hash = spl_object_hash($listener);
}
foreach ((array) $events as $event) {
// Check if actually have this listener associated
if (isset($this->listeners[$event][$hash])) {
unset($this->listeners[$event][$hash]);
}
}
}
}
|