fix build & add loader classes

lib/Alchemy/Phrasea/Loader/CacheAutoloader.php

@@ -0,0 +1,58 @@
+<?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.
+ */
+
+namespace Alchemy\Phrasea\Loader;
+
+require_once __DIR__ . '/Autoloader.php';
+require_once __DIR__ . '/LoaderStrategy.php';
+require_once __DIR__ . '/ApcAutoloader.php';
+require_once __DIR__ . '/XcacheAutoloader.php';
+
+/**
+ *
+ * @package
+ * @license     http://opensource.org/licenses/gpl-3.0 GPLv3
+ * @link        www.phraseanet.com
+ */
+class CacheAutoloader extends Autoloader
+{
+
+  private $cacheStrategies = array(
+      '\Alchemy\Phrasea\Loader\ApcAutoloader',
+      '\Alchemy\Phrasea\Loader\XcacheAutoloader',
+  );
+  private $cache;
+
+  public function __construct($prefix)
+  {
+    foreach ($this->cacheStrategies as $className)
+    {
+      $method = new $className($prefix);
+
+      if ($method instanceof LoaderStrategy && $method->isAvailable())
+      {
+        $this->cache = $method;
+        break;
+      }
+    }
+
+    if (null === $this->cache)
+    {
+      throw new Exception('No Cache available');
+    }
+  }
+
+  public function register($prepend = false)
+  {
+    $this->cache->register($prepend);
+  }
+
+}