Need help on custom Authorization with ACL

CakePHP custom ACL Authorization using acos, aros & aros_acos Acl tables with extension api_

I am developing an restful API using CakePHP, I am trying to implement a custom authorization which authorize user using ACL, code looks something like

    <?php
    App::uses('BaseAuthorize', 'Controller/Component/Auth');
   
    class ApiAuthorize extends BaseAuthorize {
         public function authorize($user, CakeRequest $request) {
                    $allowed = false;
            $Acl = $this->_Collection->load('Acl');
            list($plugin, $userModel) = pluginSplit($this->settings['userModel']);
            $action = $this->action($request);
   
            $cacheName = 'permissions_' . strval($user['id']);
            if (($permissions = Cache::read($cacheName, 'permissions')) === false) {
                $permissions = array();
                Cache::write($cacheName, $permissions, 'permissions');
            }
            if (!isset($permissions[$action])) {
                $User = ClassRegistry::init($this->settings['userModel']);
                $User->id = $user['id'];
                $allowed = $Acl->check($User, $action);
                $permissions[$action] = $allowed;
                Cache::write($cacheName, $permissions, 'permissions');
                $hit = false;
            } else {
                $allowed = $permissions[$action];
                $hit = true;
            }
                return $allowed;
         }
    }

I am using same database for website(developed using croogo) and API so my database already has `acos`, `aros` & `aros_acos` tables of website so for API I am created ACL tables with api_ extension like `api_acos`, `api_aros` & `api_aros_api_acos`

New schema of my ACL tables are

    CREATE TABLE IF NOT EXISTS `api_acos` (
      `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
      `parent_id` int(10) DEFAULT NULL,
      `model` varchar(255) DEFAULT '',
      `foreign_key` int(10) unsigned DEFAULT NULL,
      `alias` varchar(255) DEFAULT '',
      `lft` int(10) DEFAULT NULL,
      `rght` int(10) DEFAULT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
   
    CREATE TABLE IF NOT EXISTS `api_acos_api_aros` (
      `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
      `api_aro_id` int(10) unsigned NOT NULL,
      `api_aco_id` int(10) unsigned NOT NULL,
      `_create` char(2) NOT NULL DEFAULT '0',
      `_read` char(2) NOT NULL DEFAULT '0',
      `_update` char(2) NOT NULL DEFAULT '0',
      `_delete` char(2) NOT NULL DEFAULT '0',
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
   
    CREATE TABLE IF NOT EXISTS `api_aros` (
      `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
      `parent_id` int(10) DEFAULT NULL,
      `model` varchar(255) DEFAULT '',
      `foreign_key` int(10) unsigned DEFAULT NULL,
      `alias` varchar(255) DEFAULT '',
      `lft` int(10) DEFAULT NULL,
      `rght` int(10) DEFAULT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;


I am using custom ACL class from here https://github.com/FriendsOfCake/Authorize/blob/master/Controller/Component/Acl/HabtmDbAcl.php

My question is where and how can I use my new database tables (`api_acos`, `api_aros` & `api_aros_api_acos`) for ACL lookup? Please point me to code from where I can take reference for custom ACL Authorization implementation.

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