--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/HttpKernel/Controller/ControllerResolver.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,156 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\Controller;
+
+use Symfony\Component\HttpKernel\Log\LoggerInterface;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * ControllerResolver.
+ *
+ * This implementation uses the '_controller' request attribute to determine
+ * the controller to execute and uses the request attributes to determine
+ * the controller method arguments.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @api
+ */
+class ControllerResolver implements ControllerResolverInterface
+{
+    private $logger;
+
+    /**
+     * Constructor.
+     *
+     * @param LoggerInterface $logger A LoggerInterface instance
+     */
+    public function __construct(LoggerInterface $logger = null)
+    {
+        $this->logger = $logger;
+    }
+
+    /**
+     * Returns the Controller instance associated with a Request.
+     *
+     * This method looks for a '_controller' request attribute that represents
+     * the controller name (a string like ClassName::MethodName).
+     *
+     * @param Request $request A Request instance
+     *
+     * @return mixed|Boolean A PHP callable representing the Controller,
+     *                       or false if this resolver is not able to determine the controller
+     *
+     * @throws \InvalidArgumentException|\LogicException If the controller can't be found
+     *
+     * @api
+     */
+    public function getController(Request $request)
+    {
+        if (!$controller = $request->attributes->get('_controller')) {
+            if (null !== $this->logger) {
+                $this->logger->warn('Unable to look for the controller as the "_controller" parameter is missing');
+            }
+
+            return false;
+        }
+
+        if (is_array($controller) || (is_object($controller) && method_exists($controller, '__invoke'))) {
+            return $controller;
+        }
+
+        if (false === strpos($controller, ':') && method_exists($controller, '__invoke')) {
+            return new $controller;
+        }
+
+        list($controller, $method) = $this->createController($controller);
+
+        if (!method_exists($controller, $method)) {
+            throw new \InvalidArgumentException(sprintf('Method "%s::%s" does not exist.', get_class($controller), $method));
+        }
+
+        return array($controller, $method);
+    }
+
+    /**
+     * Returns the arguments to pass to the controller.
+     *
+     * @param Request $request    A Request instance
+     * @param mixed   $controller A PHP callable
+     *
+     * @throws \RuntimeException When value for argument given is not provided
+     *
+     * @api
+     */
+    public function getArguments(Request $request, $controller)
+    {
+        if (is_array($controller)) {
+            $r = new \ReflectionMethod($controller[0], $controller[1]);
+        } elseif (is_object($controller)) {
+            $r = new \ReflectionObject($controller);
+            $r = $r->getMethod('__invoke');
+        } else {
+            $r = new \ReflectionFunction($controller);
+        }
+
+        return $this->doGetArguments($request, $controller, $r->getParameters());
+    }
+
+    protected function doGetArguments(Request $request, $controller, array $parameters)
+    {
+        $attributes = $request->attributes->all();
+        $arguments = array();
+        foreach ($parameters as $param) {
+            if (array_key_exists($param->getName(), $attributes)) {
+                $arguments[] = $attributes[$param->getName()];
+            } elseif ($param->getClass() && $param->getClass()->isInstance($request)) {
+                $arguments[] = $request;
+            } elseif ($param->isDefaultValueAvailable()) {
+                $arguments[] = $param->getDefaultValue();
+            } else {
+                if (is_array($controller)) {
+                    $repr = sprintf('%s::%s()', get_class($controller[0]), $controller[1]);
+                } elseif (is_object($controller)) {
+                    $repr = get_class($controller);
+                } else {
+                    $repr = $controller;
+                }
+
+                throw new \RuntimeException(sprintf('Controller "%s" requires that you provide a value for the "$%s" argument (because there is no default value or because there is a non optional argument after this one).', $repr, $param->getName()));
+            }
+        }
+
+        return $arguments;
+    }
+
+    /**
+     * Returns a callable for the given controller.
+     *
+     * @param string $controller A Controller string
+     *
+     * @return mixed A PHP callable
+     */
+    protected function createController($controller)
+    {
+        if (false === strpos($controller, '::')) {
+            throw new \InvalidArgumentException(sprintf('Unable to find controller "%s".', $controller));
+        }
+
+        list($class, $method) = explode('::', $controller);
+
+        if (!class_exists($class)) {
+            throw new \InvalidArgumentException(sprintf('Class "%s" does not exist.', $class));
+        }
+
+        return array(new $class(), $method);
+    }
+}