/**
* Starts execution of callback.
*
* @return Executor
*/
public function start()
{
$this->_memory->set(Utils::getStatusKey($this->_id), Enum\Status::START);
try {
$callback = unserialize($this->_memory->get(Utils::getCallbackKey($this->_id)));
/* @var $callback Callback */
$this->_memory->set(Utils::getStatusKey($this->_id), Enum\Status::RUN);
$result = $callback->invoke();
$this->_memory->set(Utils::getResultKey($this->_id), $result);
$this->_memory->set(Utils::getStatusKey($this->_id), Enum\Status::DONE);
} catch (\Exception $exp) {
$this->_memory->set(Utils::getResultKey($this->_id), $exp->getMessage() . "\n" . $exp->getTraceAsString());
$this->_memory->set(Utils::getStatusKey($this->_id), Enum\Status::ERROR);
}
return $this;
}
/**
* It cleans metadata after execution.
*
* @return Client
*/
public function clean()
{
$this->_meomry->delete(Utils::getStatusKey($this->_id));
$this->_meomry->delete(Utils::getResultKey($this->_id));
$this->_meomry->delete(Utils::getCallbackKey($this->_id));
return $this;
}