127 lines
2.9 KiB
PHP
127 lines
2.9 KiB
PHP
<?php
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/**
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Robin Appelman <icewind@owncloud.com>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Thomas Tanghus <thomas@tanghus.net>
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*
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* @copyright Copyright (c) 2015, ownCloud, Inc.
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC;
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class Cache {
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/**
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* @var Cache $user_cache
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*/
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static protected $user_cache;
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/**
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* @var Cache $global_cache
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*/
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static protected $global_cache;
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/**
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* get the global cache
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* @return Cache
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*/
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static public function getGlobalCache() {
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if (!self::$global_cache) {
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self::$global_cache = new Cache\FileGlobal();
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}
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return self::$global_cache;
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}
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/**
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* get the user cache
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* @return Cache
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*/
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static public function getUserCache() {
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if (!self::$user_cache) {
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self::$user_cache = new Cache\File();
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}
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return self::$user_cache;
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}
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/**
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* get a value from the user cache
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* @param string $key
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* @return mixed
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*/
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static public function get($key) {
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$user_cache = self::getUserCache();
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return $user_cache->get($key);
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}
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/**
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* set a value in the user cache
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* @param string $key
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* @param mixed $value
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* @param int $ttl
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* @return bool
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*/
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static public function set($key, $value, $ttl=0) {
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if (empty($key)) {
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return false;
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}
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$user_cache = self::getUserCache();
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return $user_cache->set($key, $value, $ttl);
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}
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/**
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* check if a value is set in the user cache
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* @param string $key
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* @return bool
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*/
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static public function hasKey($key) {
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$user_cache = self::getUserCache();
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return $user_cache->hasKey($key);
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}
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/**
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* remove an item from the user cache
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* @param string $key
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* @return bool
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*/
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static public function remove($key) {
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$user_cache = self::getUserCache();
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return $user_cache->remove($key);
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}
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/**
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* clear the user cache of all entries starting with a prefix
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* @param string $prefix (optional)
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* @return bool
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*/
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static public function clear($prefix='') {
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$user_cache = self::getUserCache();
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return $user_cache->clear($prefix);
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}
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/**
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* creates cache key based on the files given
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* @param string[] $files
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* @return string
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*/
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static public function generateCacheKeyFromFiles($files) {
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$key = '';
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sort($files);
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foreach($files as $file) {
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$stat = stat($file);
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$key .= $file.$stat['mtime'].$stat['size'];
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}
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return md5($key);
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}
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}
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