<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\Common\Cache;
use \Memcached;
/**
* Memcached cache provider.
*
* @link www.doctrine-project.org
* @since 2.2
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author David Abdemoulaie <dave@hobodave.com>
*/
class MemcachedCache extends CacheProvider
{
/**
* @var Memcached|null
*/
private $memcached;
/**
* Sets the memcache instance to use.
*
* @param Memcached $memcached
*
* @return void
*/
public function setMemcached(Memcached $memcached)
{
$this->memcached = $memcached;
}
/**
* Gets the memcached instance used by the cache.
*
* @return Memcached|null
*/
public function getMemcached()
{
return $this->memcached;
}
/**
* {@inheritdoc}
*/
protected function doFetch($id)
{
return $this->memcached->get($id);
}
/**
* {@inheritdoc}
*/
protected function doFetchMultiple(array $keys)
{
return $this->memcached->getMulti($keys) ?: [];
}
/**
* {@inheritdoc}
*/
protected function doSaveMultiple(array $keysAndValues, $lifetime = 0)
{
if ($lifetime > 30 * 24 * 3600) {
$lifetime = time() + $lifetime;
}
return $this->memcached->setMulti($keysAndValues, $lifetime);
}
/**
* {@inheritdoc}
*/
protected function doContains($id)
{
$this->memcached->get($id);
return $this->memcached->getResultCode() === Memcached::RES_SUCCESS;
}
/**
* {@inheritdoc}
*/
protected function doSave($id, $data, $lifeTime = 0)
{
if ($lifeTime > 30 * 24 * 3600) {
$lifeTime = time() + $lifeTime;
}
return $this->memcached->set($id, $data, (int) $lifeTime);
}
/**
* {@inheritdoc}
*/
protected function doDelete($id)
{
return $this->memcached->delete($id)
|| $this->memcached->getResultCode() === Memcached::RES_NOTFOUND;
}
/**
* {@inheritdoc}
*/
protected function doFlush()
{
return $this->memcached->flush();
}
/**
* {@inheritdoc}
*/
protected function doGetStats()
{
$stats = $this->memcached->getStats();
$servers = $this->memcached->getServerList();
$key = $servers[0]['host'] . ':' . $servers[0]['port'];
$stats = $stats[$key];
return array(
Cache::STATS_HITS => $stats['get_hits'],
Cache::STATS_MISSES => $stats['get_misses'],
Cache::STATS_UPTIME => $stats['uptime'],
Cache::STATS_MEMORY_USAGE => $stats['bytes'],
Cache::STATS_MEMORY_AVAILABLE => $stats['limit_maxbytes'],
);
}
}