more refactoring and dependency injection.

laravel/routing/filterer.php

@@ -0,0 +1,46 @@
+<?php namespace Laravel\Routing;
+
+class Filterer {
+
+	/**
+	 * All of the route filters for the application.
+	 *
+	 * @var array
+	 */
+	protected $filters = array();
+
+	/**
+	 * Create a new route filterer instance.
+	 *
+	 * @param  array  $filters
+	 * @return void
+	 */
+	public function __construct($filters)
+	{
+		$this->filters = $filters;
+	}
+
+	/**
+	 * Call a filter or set of filters.
+	 *
+	 * @param  array  $filters
+	 * @param  array  $parameters
+	 * @param  bool   $override
+	 * @return mixed
+	 */
+	public function filter($filters, $parameters = array(), $override = false)
+	{
+		foreach ((array) $filters as $filter)
+		{
+			if ( ! isset($this->filters[$filter])) continue;
+
+			$response = call_user_func_array($this->filters[$filter], $parameters);
+
+			// "Before" filters may override the request cycle. For example, an authentication
+			// filter may redirect a user to a login view if they are not logged in. Because of
+			// this, we will return the first filter response if overriding is enabled.
+			if ( ! is_null($response) and $override) return $response;
+		}
+	}
+
+}