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Internal/package-cache/Drivers/MemcacheDriver.php

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+<?php namespace ZN\Cache\Drivers;
+/**
+ * ZN PHP Web Framework
+ * 
+ * "Simplicity is the ultimate sophistication." ~ Da Vinci
+ * 
+ * @package ZN
+ * @license MIT [http://opensource.org/licenses/MIT]
+ * @author  Ozan UYKUN [ozan@znframework.com]
+ */
+
+use Memcached;
+use ZN\Support;
+use ZN\ErrorHandling\Errors;
+use ZN\Cache\DriverMappingAbstract;
+use ZN\Cache\Exception\ConnectionRefusedException;
+
+/**
+ * @codeCoverageIgnore
+ */
+class MemcacheDriver extends DriverMappingAbstract
+{
+    /**
+     * Keeps memcahce class
+     * 
+     * @param object
+     */
+    protected $memcache;
+
+    /**
+     * Magic constructor
+     * 
+     * @param void
+     * 
+     * @return void
+     */
+    public function __construct(?array $settings = NULL)
+    {
+        parent::__construct();
+        
+        Support::library('Memcached', 'Memcached');
+
+        $this->memcache = new Memcached;
+
+        $config = $this->config['driverSettings'];
+
+        $config = ! empty($settings)
+                  ? $settings
+                  : $config['memcache'];
+        
+        if( ! $this->memcache->addServer($config['host'], $config['port'], $config['weight']) )
+        {
+            throw new ConnectionRefusedException(NULL, 'Memcached connection error!'); // @codeCoverageIgnore
+        }
+    }
+
+    /**
+     * Select key
+     * 
+     * @param string $key
+     * @param mixed  $compressed
+     * 
+     * @return mixed
+     */
+    public function select($key, $compressed = NULL)
+    {
+        return $this->memcache->get($key);
+    }
+
+    /**
+     * Insert key
+     * 
+     * @param string $key
+     * @param mixed  $var
+     * @param int    $time
+     * @param mixed  $compressed
+     * 
+     * @return bool
+     */
+    public function insert($key, $var, $time, $compressed)
+    {
+        return $this->memcache->set($key, $var, $time);
+    }
+
+    /**
+     * Delete key
+     * 
+     * @param string $key
+     * 
+     * @return bool
+     */
+    public function delete($key)
+    {
+        return $this->memcache->delete($key);
+    }
+
+    /**
+     * Increment key
+     * 
+     * @param string $key
+     * @param int    $increment = 1
+     * 
+     * @return int
+     */
+    public function increment($key, $increment)
+    {
+        return $this->memcache->increment($key, $increment);
+    }
+
+    /**
+     * Decrement key
+     * 
+     * @param string $key
+     * @param int    $decrement = 1
+     * 
+     * @return int
+     */
+    public function decrement($key, $decrement)
+    {
+        return $this->memcache->decrement($key, $decrement);
+    }
+
+    /**
+     * Clean all cache
+     * 
+     * @param void
+     * 
+     * @return bool
+     */
+    public function clean()
+    {
+        return $this->memcache->flush();
+    }
+
+    /**
+     * Get info
+     * 
+     * @param mixed $type
+     * 
+     * @return array
+     */
+    public function info($type = NULL)
+    {
+        return $this->memcache->getStats() ?: [];
+    }
+}