/**
* @param string|null $template
*
* @return \Twig_Template
*
* @throws WorkflowException
* @throws TemplateException
*/
private function loadTemplate($template = null)
{
if (null === $this->twigEnvironment) {
throw WorkflowException::twigNotDefined();
}
$template = $template ?: $this->defaultTemplate;
try {
return $this->twigEnvironment->loadTemplate($template);
} catch (\Exception $e) {
throw TemplateException::twigTemplateNotFound($template, $e);
}
}
