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<?php
/**
* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Memcache;
class Factory {
/**
* get a cache instance, will return null if no backend is available
*
* @param string $prefix
* @return \OC\Memcache\Cache
*/
function create($prefix = '') {
if (XCache::isAvailable()) {
return new XCache($prefix);
} elseif (APCu::isAvailable()) {
return new APCu($prefix);
} elseif (APC::isAvailable()) {
return new APC($prefix);
} elseif (Memcached::isAvailable()) {
return new Memcached($prefix);
} else {
return null;
}
}
/**
* check if there is a memcache backend available
*
* @return bool
*/
public function isAvailable() {
return XCache::isAvailable() || APCu::isAvailable() || APC::isAvailable() || Memcached::isAvailable();
}
/**
* get a in-server cache instance, will return null if no backend is available
*
* @param string $prefix
* @return \OC\Memcache\Cache
*/
public static function createLowLatency($prefix = '') {
if (XCache::isAvailable()) {
return new XCache($prefix);
} elseif (APCu::isAvailable()) {
return new APCu($prefix);
} elseif (APC::isAvailable()) {
return new APC($prefix);
} else {
return null;
}
}
/**
* check if there is a in-server backend available
*
* @return bool
*/
public static function isAvailableLowLatency() {
return XCache::isAvailable() || APCu::isAvailable() || APC::isAvailable();
}
}
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