extract route enhancer into trait

CHANGELOG.md

@@ -1,6 +1,8 @@
 Changelog
 =========
 
+ * **2017-01-31**: Split out enhancer code from DynamicRouter into RouteEnhancerTrait for reusability.
+
 2.0.0-RC1
 ---------
 

src/DynamicRouter.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Cmf\Component\Routing;
 
-use Symfony\Cmf\Component\Routing\Enhancer\RouteEnhancerInterface;
+use Symfony\Cmf\Component\Routing\Enhancer\RouteEnhancerTrait;
 use Symfony\Cmf\Component\Routing\Event\Events;
 use Symfony\Cmf\Component\Routing\Event\RouterGenerateEvent;
 use Symfony\Cmf\Component\Routing\Event\RouterMatchEvent;
@@ -38,6 +38,8 @@
  */
 class DynamicRouter implements RouterInterface, RequestMatcherInterface, ChainedRouterInterface
 {
+    use RouteEnhancerTrait;
+
     /**
      * @var RequestMatcherInterface|UrlMatcherInterface
      */
@@ -53,18 +55,6 @@ class DynamicRouter implements RouterInterface, RequestMatcherInterface, Chained
      */
     protected $eventDispatcher;
 
-    /**
-     * @var RouteEnhancerInterface[][]
-     */
-    protected $enhancers = [];
-
-    /**
-     * Cached sorted list of enhancers.
-     *
-     * @var RouteEnhancerInterface[]
-     */
-    protected $sortedEnhancers = [];
-
     /**
      * The regexp pattern that needs to be matched before a dynamic lookup is
      * made.
@@ -284,79 +274,6 @@ public function matchRequest(Request $request)
         return $this->applyRouteEnhancers($defaults, $request);
     }
 
-    /**
-     * Apply the route enhancers to the defaults, according to priorities.
-     *
-     * @param array   $defaults
-     * @param Request $request
-     *
-     * @return array
-     */
-    protected function applyRouteEnhancers($defaults, Request $request)
-    {
-        foreach ($this->getRouteEnhancers() as $enhancer) {
-            $defaults = $enhancer->enhance($defaults, $request);
-        }
-
-        return $defaults;
-    }
-
-    /**
-     * Add route enhancers to the router to let them generate information on
-     * matched routes.
-     *
-     * The order of the enhancers is determined by the priority, the higher the
-     * value, the earlier the enhancer is run.
-     *
-     * @param RouteEnhancerInterface $enhancer
-     * @param int                    $priority
-     *
-     * @return self
-     */
-    public function addRouteEnhancer(RouteEnhancerInterface $enhancer, $priority = 0)
-    {
-        if (empty($this->enhancers[$priority])) {
-            $this->enhancers[$priority] = [];
-        }
-
-        $this->enhancers[$priority][] = $enhancer;
-        $this->sortedEnhancers = [];
-
-        return $this;
-    }
-
-    /**
-     * Sorts the enhancers and flattens them.
-     *
-     * @return RouteEnhancerInterface[] the enhancers ordered by priority
-     */
-    public function getRouteEnhancers()
-    {
-        if (0 === count($this->sortedEnhancers)) {
-            $this->sortedEnhancers = $this->sortRouteEnhancers();
-        }
-
-        return $this->sortedEnhancers;
-    }
-
-    /**
-     * Sort enhancers by priority.
-     *
-     * The highest priority number is the highest priority (reverse sorting).
-     *
-     * @return RouteEnhancerInterface[] the sorted enhancers
-     */
-    protected function sortRouteEnhancers()
-    {
-        if (0 === count($this->enhancers)) {
-            return [];
-        }
-
-        krsort($this->enhancers);
-
-        return call_user_func_array('array_merge', $this->enhancers);
-    }
-
     /**
      * Sets the request context.
      *

src/Enhancer/RouteEnhancerTrait.php

@@ -0,0 +1,109 @@
+<?php
+
+/*
+ * This file is part of the Symfony CMF package.
+ *
+ * (c) 2011-2017 Symfony CMF
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Cmf\Component\Routing\Enhancer;
+
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * Functionality to collect and apply route enhancers to a request.
+ *
+ * @author Tim Plunkett
+ * @author Larry Garfield
+ * @author David Buchmann
+ */
+trait RouteEnhancerTrait
+{
+    /**
+     * @var RouteEnhancerInterface[][]
+     */
+    private $enhancers = [];
+
+    /**
+     * Cached sorted list of enhancers.
+     *
+     * @var RouteEnhancerInterface[]
+     */
+    private $sortedEnhancers = [];
+
+    /**
+     * Apply the route enhancers to the defaults, according to priorities.
+     *
+     * @param array   $defaults
+     * @param Request $request
+     *
+     * @return array
+     */
+    protected function applyRouteEnhancers($defaults, Request $request)
+    {
+        foreach ($this->getRouteEnhancers() as $enhancer) {
+            $defaults = $enhancer->enhance($defaults, $request);
+        }
+
+        return $defaults;
+    }
+
+    /**
+     * Add route enhancers to the router to let them generate information on
+     * matched routes.
+     *
+     * The order of the enhancers is determined by the priority, the higher the
+     * value, the earlier the enhancer is run.
+     *
+     * @param RouteEnhancerInterface $enhancer
+     * @param int                    $priority
+     *
+     * @return self
+     */
+    public function addRouteEnhancer(RouteEnhancerInterface $enhancer, $priority = 0)
+    {
+        if (empty($this->enhancers[$priority])) {
+            $this->enhancers[$priority] = [];
+        }
+
+        $this->enhancers[$priority][] = $enhancer;
+        $this->sortedEnhancers = [];
+
+        return $this;
+    }
+
+    /**
+     * Sorts the enhancers and flattens them.
+     *
+     * @return RouteEnhancerInterface[] the enhancers ordered by priority
+     */
+    public function getRouteEnhancers()
+    {
+        if (0 === count($this->sortedEnhancers)) {
+            $this->sortedEnhancers = $this->sortRouteEnhancers();
+        }
+
+        return $this->sortedEnhancers;
+    }
+
+    /**
+     * Sort enhancers by priority.
+     *
+     * The highest priority number is the highest priority (reverse sorting).
+     *
+     * @return RouteEnhancerInterface[] the sorted enhancers
+     */
+    private function sortRouteEnhancers()
+    {
+        if (0 === count($this->enhancers)) {
+            return [];
+        }
+
+        krsort($this->enhancers);
+
+        return call_user_func_array('array_merge', $this->enhancers);
+    }
+}