How to inject ServiceManager into a user defined class - zend-framework2

Question

In the doc it's said:"By default, the Zend Framework MVC registers an initializer that will inject the ServiceManager instance, which is an implementation of Zend\ServiceManager\ServiceLocatorInterface, into any class implementing Zend\ServiceManager\ServiceLocatorAwareInterface."
so I tried this:
interface ModelResourceInterface extends ServiceLocatorAwareInterface
{
}
interface ServiceModelResourceInterface extends ModelResourceInterface
{
public function fetch($uri, $method, $parameters, $options, $encodeType);
}
namespace Ssports\Model\Resource\Service\Http;
use Ssports\Model\Resource\Service\ServiceModelResourceInterface;
use Zend\ServiceManager\ServiceLocatorInterface;
use Zend\Http\Client;
use Zend\Http\Request;
use Ssports\Model\Resource\Service\ConnectionException;
abstract class AbstractHttpServiceModelResource implements ServiceModelResourceInterface
{
/**
*
* #var Zend\ServiceManager\ServiceLocatorInterface;
*/
protected $serviceLocator;
/**
* Constructor
*/
function __construct()
{
$this->init();
}
/**
* Extend Constructor
*/
public function init()
{}
/**
* (non-PHPdoc)
*
* #see \Zend\ServiceManager\ServiceLocatorAwareInterface::setServiceLocator()
*
*/
public function setServiceLocator(ServiceLocatorInterface $serviceLocator)
{
$this->serviceLocator = $serviceLocator;
}
/**
* (non-PHPdoc)
*
* #see \Ssports\Model\Resource\Service\ServiceModelResourceInterface::fetch()
*
*/
public function fetch($uri, $method, $parameters = null, $options = null, $encodeType = null)
{
try {
//something raise \RuntimeException
} catch (\RuntimeException $e) {
$this->getServiceLocator()->get('Log\Web');
throw new ConnectionException();
}
}
/**
* (non-PHPdoc)
*
* #see \Zend\ServiceManager\ServiceLocatorAwareInterface::getServiceLocator()
*
*/
public function getServiceLocator()
{
return $this->serviceLocator;
}
}
I extend this abstract class with some model resource class, and run it, and an exception throw to say that I'm calling get on a non-object.
Seem that the service manager is not being injected to my abstract class, and the return of getServiceLocator is NULL.
Any thing I missed to make it right?

Answer 1

Have you tried to use the service locator trait?
It can be found in \Zend\ServiceManager\ServiceLocatorAwareTrait
However this requires PHP 5.4 to work...
To use a trait do the following
class Class1
{
use Zend\ServiceManager\ServiceLocatorAwareTrait;
}
You can access the service locator then, or at least that is how i had to do it when i needed to load the service locator.