decorator.php

<?php

namespace Something\LibName;
use Something\LibName\Exceptions;

class Membrane
{
    private $wrappedObject;
    private $accessControl;
    /**
     * @codeCoverageIgnore
     */
    public function __construct($wrappedObject, $accessControl)
    {
        $this->wrappedObject = $wrappedObject;
        $this->accessControl = $accessControl;
    }
    public function hasMethod($method)
    {
        return method_exists($this->wrappedObject, $method);
    }
    public function __call($method, $arguments)
    {
        if (!$this->accessControl->isAllowed(get_class($this->wrappedObject))) {
            throw new Exceptions\AccessDenied;
        }
        if (!method_exists($this->wrappedObject, $method)) {
            throw new Exceptions\MethodNotFound;
        }
        return call_user_func_array(array($this->wrappedObject, $method), $arguments);
    }
}