Add namespace.

Cache/MemcacheCache.php

@@ -0,0 +1,160 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage Cache
+ * @since 2010-03-04
+ */
+
+class MemcacheCache extends Cache
+{
+
+    /**
+     * @var Memcache
+     */
+    protected $connection = null;
+
+    /**
+     * @var null|string
+     */
+    protected $key_salt = null;
+
+    /**
+     * One hour to live default
+     *
+     * @var int
+     */
+    protected $expire = 3600;
+
+    public function __construct($config)
+    {
+        $this->connection = new Memcache();
+
+        if (isset($config['key_salt'])) {
+            $this->key_salt = $config['key_salt'];
+            unset($config['key_salt']);
+        }
+
+        $required = array('hostname', 'port');
+        foreach ($config as $c) {
+            foreach ($required as $option) {
+                if (!isset($c[$option])) {
+                    throw new InitializationException('Configuration must have a "' . $option . '".');
+                }
+            }
+            $this->connection->addServer($c['hostname'], $c['port']);
+        }
+    }
+
+    /**
+     * Add an item to the cache
+     *
+     * @param string $key
+     * @param mixed $value
+     * @param int $expire
+     * @return bool
+     */
+    public function add($key, $value, $expire = 0)
+    {
+        return $this->connection->add($this->getKey($key), $value, null, $this->getExpire($expire));
+    }
+
+    /**
+     * Decrement item's value
+     *
+     * @param string $key
+     * @param int $decrement
+     * @return bool
+     */
+    public function decrement($key, $decrement = 1)
+    {
+        return $this->connection->decrement($this->getKey($key), $decrement);
+    }
+
+    /**
+     * Delete item from the cache
+     *
+     * @param string $key
+     * @internal param int $value
+     * @return bool
+     */
+    public function del($key)
+    {
+        return $this->connection->delete($this->getKey($key), 0);
+    }
+
+    /**
+     * Flush all existing items
+     *
+     * @return bool
+     */
+    public function flush()
+    {
+        return $this->connection->flush();
+    }
+
+    /**
+     * Retrieve item from the cache
+     *
+     * @param string $key
+     * @return mixed
+     */
+    public function get($key)
+    {
+        return $this->connection->get($this->getKey($key));
+    }
+
+    /**
+     * Increment item's value
+     *
+     * @param string $key
+     * @param int $increment
+     * @return bool
+     */
+    public function increment($key, $increment = 1)
+    {
+        return $this->connection->increment($this->getKey($key), $increment);
+    }
+
+    /**
+     * Replace value of the existing item
+     *
+     * @param string $key
+     * @param mixed $value
+     * @param int $expire
+     * @internal param mixed $var
+     * @return bool
+     */
+    public function replace($key, $value, $expire = 0)
+    {
+        return $this->connection->replace($this->getKey($key), $value, null, $this->getExpire($expire));
+    }
+
+    /**
+     * Store data in the cache
+     *
+     * @param string $key
+     * @param mixed $value
+     * @param int $expire
+     * @return bool
+     */
+    public function set($key, $value, $expire = 0)
+    {
+        return $this->connection->set($this->getKey($key), $value, null, $this->getExpire($expire));
+    }
+
+    /**
+     * @param string $key
+     * @return string
+     */
+    protected function getKey($key)
+    {
+        return md5($this->key_salt . $key);
+    }
+
+    public function getExpire($expire)
+    {
+        return ($expire > 0) ? $expire : $this->expire;
+    }
+}