/**
* Returns the system worker frontend object
*
* todo: indicate a missing backend somehow
* todo: be robust against missing pecl stuff
*
* @since 0.9.11
* @return Erfurt_Worker_Frontend
*/
public function getWorkerFrontend()
{
if (null === $this->_workerFrontend) {
$bootstrap = $this->getBootstrap();
$workerFrontend = Erfurt_Worker_Frontend::getInstance();
$workerFrontend->setBackend('gearman');
$workerFrontend->setServers($bootstrap->config->worker->servers);
$this->_workerFrontend = $workerFrontend;
}
return $this->_workerFrontend;
}
/**
* Returns singleton instance of registry.
* @static
* @access public
* @return Erfurt_Worker_Frontend Singleton instance of worker frontend
* @throws RuntimeException if worker is not configured
* @throws RuntimeException if worker is not enabled
*/
public static function getInstance()
{
if (!self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
