116 lines
2.9 KiB
PHP
116 lines
2.9 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2014 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
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*
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*/
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/**
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* Short description of class common_cache_SingletonCache
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*
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* @abstract
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* @access public
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* @author Joel Bout, <joel@taotesting.com>
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* @package generis
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*/
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abstract class common_cache_SingletonCache
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{
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// --- ASSOCIATIONS ---
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// --- ATTRIBUTES ---
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/**
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* Short description of attribute instances
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*
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* @access private
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* @var array
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*/
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private static $instances = [];
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// --- OPERATIONS ---
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/**
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* Short description of method singleton
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*
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* @access public
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* @author Joel Bout, <joel@taotesting.com>
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* @return common_cache_Cache
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*/
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public static function singleton()
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{
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$returnValue = null;
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$cacheName = get_called_class();
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if (!isset(self::$instances[$cacheName])) {
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self::$instances[$cacheName] = new $cacheName();
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}
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$returnValue = self::$instances[$cacheName];
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return $returnValue;
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}
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/**
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* Short description of method getCached
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*
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* @access public
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* @author Joel Bout, <joel@taotesting.com>
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* @param function
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*/
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public static function getCached($function)
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{
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$returnValue = null;
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$args = func_get_args();
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array_shift($args);
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if (!is_string($function)) {
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$r = new ReflectionFunction($function);
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$serial = md5(
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$r->getFileName() .
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$r->getStartLine() .
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serialize($args)
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);
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} else {
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$serial = md5($function . serialize($args));
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}
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if (static::singleton()->has($serial)) {
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$returnValue = static::singleton()->has($serial);
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} else {
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$returnValue = call_user_func_array($fn, $args);
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static::singleton()->put($serial, $returnValue);
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}
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return $returnValue;
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}
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/**
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* Short description of method __construct
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*
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* @access private
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* @author Joel Bout, <joel@taotesting.com>
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* @return mixed
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*/
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private function __construct()
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{
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}
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} /* end of abstract class common_cache_SingletonCache */
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