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ZeedFramework/library/Zeed/Storage.php

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+<?php
+/**
+ * Zeed Platform Project
+ * Based on Zeed Framework & Zend Framework.
+ *
+ * BTS - Billing Transaction Service
+ * CAS - Central Authentication Service
+ *
+ * LICENSE
+ * http://www.zeed.com.cn/license/
+ *
+ * @category   Zeed
+ * @package    Zeed_Benchmark
+ * @copyright  Copyright (c) 2010 Zeed Technologies PRC Inc. (http://www.zeed.com.cn)
+ * @author     Zeed Team (http://blog.zeed.com.cn)
+ * @since      2011-11-1
+ * @version    SVN: $Id$
+ */
+
+class Zeed_Storage
+{
+    //Storage instances
+    public static $instances = null;
+    
+    /**
+     * Storage Singleton Pattern
+     * 
+     * @param string $name Schema Name
+     * @param mixed configuration array
+     * @return Zeed_Storage_Adapter_Abstract|Zeed_Storage_Adapter_Disk
+     */
+    public static function &instance($name = 'default', $config = NULL)
+    {
+        if (empty($config)) {
+            $config = Zeed_Config::loadGroup('attachment.adapters.' . $name);
+        }
+        
+        $hash = $config['adapter'];
+        //Zeed_Benchmark::print_r($hash);
+       // exit;
+        
+        if (! isset(self::$instances[$hash])) {
+            $className = 'Zeed_Storage_Adapter_' . $hash;
+            if (!class_exists($className, true)) {
+                throw new Exception("Unknown storage adapter {$className}");
+            }
+            self::$instances[$hash] = new $className($config);
+        }
+        
+        return self::$instances[$hash];
+    }
+
+}