mapResources() for ApiListener

gistfile1.php

    /**
     * Automatically create REST resource routes for all controllers found in your main
     * application or in a specific plugin to provide access to your resources
     * using /controller/id.json instead of the default /controller/view/id.json.
     *
     * If called with no arguments, all controllers in the main application will be mapped.
     * If called with a valid plugin name all controllers in that plugin will be mapped.
     * If combined both controllers from the application and the plugin(s) will be mapped.
     *
     * This function needs to be called from your application's app/Config/routes.php:
     *
     * ```
     *     App::uses('ApiListener', 'Crud.Controller/Crud/Listener');
     *
     *     ApiListener::mapResources();
     *     ApiListener::mapResources('DebugKit');
     *     Router::setExtensions(array('json', 'xml'));
     *     Router::parseExtensions();
     * ```
     *
     * @static
     * @param string $plugin
     * @return void
     */
    public static function mapResources($plugin = null) {
        $key = 'Controller';
        if ($plugin) {
            $key = $plugin . '.Controller';
        }

        $controllers = array();
        foreach (App::objects($key) as $controller) {
            if ($controller !== $plugin . 'AppController') {
                if ($plugin) {
                    $controller = $plugin . '.' . $controller;
                }

                array_push($controllers, str_replace('Controller', '', $controller));
            }
        }

        Router::mapResources($controllers);
    }