Using Traits instead of inheritance to build a Restful Dispatcher in ZF2 MVC

zf2-mvc-restful-trait.php

// REF: http://framework.zend.com/wiki/display/ZFDEV2/Proposal+for+MVC+Interfaces

trait RestDispatcher 
{ 
    public function dispatch(Request $request, Response $response = null) 
    { 
        if (!$request instanceof HttpRequest) { 
            throw new DomainException('REST expects HTTP requests'); 
        } 
 
        $resource = $this->getResource(); 
 
        switch (strtoupper($request->getMethod())) { 
            case 'GET': 
                // ... 
                break; 
            case 'POST': 
                // ... 
                break; 
            case 'PUT': 
                // ... 
                break; 
            case 'DELETE': 
                // ... 
                break; 
            case 'HEAD': 
                // ... 
                break; 
            default: 
                $response->getStatus()->setStatusCode(405, 'Method Not Allowed'); 
        } 
        return $response; 
    } 
} 
 
// In a controller file: 
namespace Blog\Controller; 
 
class Entry implements Dispatchable 
{ 
    use RestDispatcher; 
 
    public function getResource() 
    { 
        return new Blog\Model\EntryResource; 
    } 
}