init without trunk

vendor/sensio/framework-extra-bundle/Request/ParamConverter/ParamConverterManager.php

@@ -0,0 +1,144 @@
+<?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 Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter;
+
+use Symfony\Component\HttpFoundation\Request;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\ConfigurationInterface;
+
+/**
+ * Managers converters.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Henrik Bjornskov <henrik@bjrnskov.dk>
+ */
+class ParamConverterManager
+{
+    /**
+     * @var array
+     */
+    protected $converters = array();
+
+    /**
+     * @var array
+     */
+    protected $namedConverters = array();
+
+    /**
+     * Applies all converters to the passed configurations and stops when a
+     * converter is applied it will move on to the next configuration and so on.
+     *
+     * @param Request      $request
+     * @param array|object $configurations
+     */
+    public function apply(Request $request, $configurations)
+    {
+        if (is_object($configurations)) {
+            $configurations = array($configurations);
+        }
+
+        foreach ($configurations as $configuration) {
+            $this->applyConverter($request, $configuration);
+        }
+    }
+
+    /**
+     * Apply converter on request based on the given configuration.
+     *
+     * @param Request                $request
+     * @param ConfigurationInterface $configuration
+     */
+    protected function applyConverter(Request $request, ConfigurationInterface $configuration)
+    {
+        $value = $request->attributes->get($configuration->getName());
+        $className = $configuration->getClass();
+
+        // If the value is already an instance of the class we are trying to convert it into
+        // we should continue as no conversion is required
+        if (is_object($value) && $value instanceof $className) {
+            return;
+        }
+
+        if ($converterName = $configuration->getConverter()) {
+            if (!isset($this->namedConverters[$converterName])) {
+                throw new \RuntimeException(sprintf(
+                    "No converter named '%s' found for conversion of parameter '%s'.",
+                    $converterName, $configuration->getName()
+                ));
+            }
+
+            $converter = $this->namedConverters[$converterName];
+
+            if (!$converter->supports($configuration)) {
+                throw new \RuntimeException(sprintf(
+                    "Converter '%s' does not support conversion of parameter '%s'.",
+                    $converterName, $configuration->getName()
+                ));
+            }
+
+            $converter->apply($request, $configuration);
+
+            return;
+        }
+
+        foreach ($this->all() as $converter) {
+            if ($converter->supports($configuration)) {
+                if ($converter->apply($request, $configuration)) {
+                    return;
+                }
+            }
+        }
+    }
+
+    /**
+     * Adds a parameter converter.
+     *
+     * Converters match either explicitly via $name or by iteration over all
+     * converters with a $priority. If you pass a $priority = null then the
+     * added converter will not be part of the iteration chain and can only
+     * be invoked explicitly.
+     *
+     * @param ParamConverterInterface $converter A ParamConverterInterface instance
+     * @param int                     $priority  The priority (between -10 and 10).
+     * @param string                  $name      Name of the converter.
+     */
+    public function add(ParamConverterInterface $converter, $priority = 0, $name = null)
+    {
+        if ($priority !== null) {
+            if (!isset($this->converters[$priority])) {
+                $this->converters[$priority] = array();
+            }
+
+            $this->converters[$priority][] = $converter;
+        }
+
+        if (null !== $name) {
+            $this->namedConverters[$name] = $converter;
+        }
+    }
+
+   /**
+    * Returns all registered param converters.
+    *
+    * @return array An array of param converters
+    */
+   public function all()
+   {
+       krsort($this->converters);
+
+       $converters = array();
+       foreach ($this->converters as $all) {
+           $converters = array_merge($converters, $all);
+       }
+
+       return $converters;
+   }
+}