V 3.5 RC 1

lib/classes/cache/memcached.class.php

@@ -0,0 +1,170 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2010 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ *
+ * @package     cache
+ * @license     http://opensource.org/licenses/gpl-3.0 GPLv3
+ * @link        www.phraseanet.com
+ */
+class cache_memcached implements cache_interface
+{
+
+  /**
+   *
+   * @var cache_interface
+   */
+  protected $memcached;
+  /**
+   *
+   * @var boolean
+   */
+  protected $online = false;
+
+  /**
+   *
+   * @param registryInterface $registry
+   * @return cache_memcached
+   */
+  public function __construct(registryInterface $registry)
+  {
+    if (!extension_loaded('Memcached'))
+    {
+      throw new Exception('Memcached is not loaded');
+    }
+
+    $this->memcached = new Memcached();
+
+    $host = $registry->get('GV_cache_server_host');
+    $port = $registry->get('GV_cache_server_port');
+
+    /**
+     * We do not activate binary protocol because if some issues
+     *
+     * https://code.google.com/p/memcached/issues/detail?id=106
+     *
+     */
+
+//    $this->memcached->setOption(Memcached::OPT_BINARY_PROTOCOL, true);
+
+    $this->memcached->setOption(Memcached::OPT_CONNECT_TIMEOUT, 500);
+    $this->memcached->setOption(Memcached::OPT_SEND_TIMEOUT, 500);
+    $this->memcached->setOption(Memcached::OPT_RECV_TIMEOUT, 500);
+    $this->memcached->setOption(Memcached::OPT_SERVER_FAILURE_LIMIT, 1);
+    $this->memcached->setOption(Memcached::OPT_DISTRIBUTION, Memcached::DISTRIBUTION_CONSISTENT);
+//    @$this->memcached->setOption(Memcached::OPT_SERIALIZER, Memcached::SERIALIZER_IGBINARY);
+
+    $this->memcached->addServer($host, $port);
+
+    $this->memcached->getVersion();
+    if ($this->memcached->getResultCode() !== Memcached::RES_SUCCESS)
+      throw new Exception('Unable to connect');
+
+    $this->online = true;
+
+    return $this;
+  }
+
+  /**
+   *
+   * @param string $key
+   * @param mixed $value
+   * @param int $expiration
+   * @return cache_memcached
+   */
+  public function set($key, $value, $expiration)
+  {
+    $this->memcached->set($key, $value, $expiration);
+
+    return $this;
+  }
+
+  /**
+   *
+   * @param string $key
+   * @return mixed
+   */
+  public function get($key)
+  {
+    $value = $this->memcached->get($key);
+
+    if ($this->memcached->getResultCode() !== Memcached::RES_SUCCESS)
+    {
+      throw new Exception('Unable to retrieve the value');
+    }
+
+    return $value;
+  }
+
+  /**
+   *
+   * @param string $key
+   * @return cache_memcached
+   */
+  public function delete($key)
+  {
+    $this->memcached->delete($key);
+
+    return $this;
+  }
+
+  /**
+   *
+   * @param array $array_keys
+   * @return cache_memcached
+   */
+  public function deleteMulti(Array $array_keys)
+  {
+    foreach ($array_keys as $key)
+      $this->memcached->delete($key);
+
+    return $this;
+  }
+
+  /**
+   *
+   * @return array
+   */
+  public function getStats()
+  {
+    return $this->memcached->getStats();
+  }
+
+  /**
+   *
+   * @return cache_memcached
+   */
+  public function flush()
+  {
+    $this->memcached->flush();
+
+    return $this;
+  }
+
+  /**
+   *
+   * @return string
+   */
+  public function get_version()
+  {
+    return $this->memcached->getVersion();
+  }
+
+  /**
+   *
+   * @return boolean
+   */
+  public function ping()
+  {
+    return $this->online;
+  }
+
+}