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public/system/library/cache.php

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+<?php
+/**
+ * @package		OpenCart
+ * @author		Daniel Kerr
+ * @copyright	Copyright (c) 2005 - 2017, OpenCart, Ltd. (https://www.opencart.com/)
+ * @license		https://opensource.org/licenses/GPL-3.0
+ * @link		https://www.opencart.com
+*/
+
+/**
+* Cache class
+*/
+class Cache {
+	private $adaptor;
+	
+	/**
+	 * Constructor
+	 *
+	 * @param	string	$adaptor	The type of storage for the cache.
+	 * @param	int		$expire		Optional parameters
+	 *
+ 	*/
+	public function __construct($adaptor, $expire = 3600) {
+		$class = 'Cache\\' . $adaptor;
+
+		if (class_exists($class)) {
+			$this->adaptor = new $class($expire);
+		} else {
+			throw new \Exception('Error: Could not load cache adaptor ' . $adaptor . ' cache!');
+		}
+	}
+	
+    /**
+     * Gets a cache by key name.
+     *
+     * @param	string $key	The cache key name
+     *
+     * @return	string
+     */
+	public function get($key) {
+		return $this->adaptor->get($key);
+	}
+	
+    /**
+     * 
+     *
+     * @param	string	$key	The cache key
+	 * @param	string	$value	The cache value
+	 * 
+	 * @return	string
+     */
+	public function set($key, $value) {
+		return $this->adaptor->set($key, $value);
+	}
+   
+    /**
+     * 
+     *
+     * @param	string	$key	The cache key
+     */
+	public function delete($key) {
+		return $this->adaptor->delete($key);
+	}
+}