Observium_CE/libs/Phpfastcache8/EventManager.php

147 lines
4.9 KiB
PHP

<?php
/**
*
* This file is part of phpFastCache.
*
* @license MIT License (MIT)
*
* For full copyright and license information, please see the docs/CREDITS.txt file.
*
* @author Khoa Bui (khoaofgod) <khoaofgod@gmail.com> https://www.phpfastcache.com
* @author Georges.L (Geolim4) <contact@geolim4.com>
*
*/
declare(strict_types=1);
namespace Phpfastcache;
use BadMethodCallException;
use Phpfastcache\Event\EventManagerInterface;
use Phpfastcache\Exceptions\PhpfastcacheInvalidArgumentException;
/**
* Class CacheManager
* @package phpFastCache
*
* == ItemPool Events ==
* @method Void onCacheGetItem() onCacheGetItem(Callable $callable, ?string $callbackName = null)
* @method Void onCacheDeleteItem() onCacheDeleteItem(Callable $callable, ?string $callbackName = null)
* @method Void onCacheSaveItem() onCacheSaveItem(Callable $callable, ?string $callbackName = null)
* @method Void onCacheSaveDeferredItem() onCacheSaveDeferredItem(Callable $callable, ?string $callbackName = null)
* @method Void onCacheCommitItem() onCacheCommitItem(Callable $callable, ?string $callbackName = null)
* @method Void onCacheClearItem() onCacheClearItem(Callable $callable, ?string $callbackName = null)
* @method Void onCacheWriteFileOnDisk() onCacheWriteFileOnDisk(Callable $callable, ?string $callbackName = null)
* @method Void onCacheGetItemInSlamBatch() onCacheGetItemInSlamBatch(Callable $callable, ?string $callbackName = null)
*
* == ItemPool Events (Cluster) ==
* @method Void onCacheReplicationSlaveFallback() onCacheReplicationSlaveFallback(Callable $callable, ?string $callbackName = null)
* @method Void onCacheReplicationRandomPoolChosen() onCacheReplicationRandomPoolChosen(Callable $callable, ?string $callbackName = null)
* @method Void onCacheClusterBuilt() onCacheClusterBuilt(Callable $callable, ?string $callbackName = null)
*
* == Item Events ==
* @method Void onCacheItemSet() onCacheItemSet(Callable $callable, ?string $callbackName = null)
* @method Void onCacheItemExpireAt() onCacheItemExpireAt(Callable $callable, ?string $callbackName = null)
* @method Void onCacheItemExpireAfter() onCacheItemExpireAfter(Callable $callable, ?string $callbackName = null)
*
*/
class EventManager implements EventManagerInterface
{
public const ON_EVERY_EVENT = '__every';
/**
* @var $this
*/
protected static $instance;
/**
* @var array
*/
protected $events = [
self::ON_EVERY_EVENT => []
];
/**
* EventManager constructor.
*/
final protected function __construct()
{
// The constructor should not be instantiated externally
}
/**
* @return EventManagerInterface
*/
public static function getInstance(): EventManagerInterface
{
return (self::$instance ?: self::$instance = new self);
}
/**
* @param string $eventName
* @param array ...$args
*/
public function dispatch(string $eventName, ...$args): void
{
/**
* Replace array_key_exists by isset
* due to performance issue on huge
* loop dispatching operations
*/
if (isset($this->events[$eventName]) && $eventName !== self::ON_EVERY_EVENT) {
foreach ($this->events[$eventName] as $event) {
$event(... $args);
}
}
foreach ($this->events[self::ON_EVERY_EVENT] as $event) {
$event($eventName, ...$args);
}
}
/**
* @param string $name
* @param array $arguments
* @throws PhpfastcacheInvalidArgumentException
* @throws BadMethodCallException
*/
public function __call(string $name, array $arguments): void
{
if (\strpos($name, 'on') === 0) {
$name = \substr($name, 2);
if (\is_callable($arguments[0])) {
if (isset($arguments[1]) && \is_string($arguments[0])) {
$this->events[$name][$arguments[1]] = $arguments[0];
} else {
$this->events[$name][] = $arguments[0];
}
} else {
throw new PhpfastcacheInvalidArgumentException(\sprintf('Expected Callable, got "%s"', \gettype($arguments[0])));
}
} else {
throw new BadMethodCallException('An event must start with "on" such as "onCacheGetItem"');
}
}
/**
* @param callable $callback
* @param string $callbackName
*/
public function onEveryEvents(callable $callback, string $callbackName): void
{
$this->events[self::ON_EVERY_EVENT][$callbackName] = $callback;
}
/**
* @param string $eventName
* @param string $callbackName
* @return bool
*/
public function unbindEventCallback(string $eventName, string $callbackName): bool
{
$return = isset($this->events[$eventName][$callbackName]);
unset($this->events[$eventName][$callbackName]);
return $return;
}
}