Matthias\SymfonyServiceDefinitionValidator\ServiceDefinitionValidator::validateFactoryServiceAndMethod PHP Method

    private function validateFactoryServiceAndMethod($factoryServiceId, $factoryMethod)
    {
        if (!$factoryMethod) {
            throw new MissingFactoryMethodException();
        }
        if (!$this->containerBuilder->has($factoryServiceId)) {
            throw new ServiceNotFoundException($factoryServiceId);
        }
        $factoryServiceDefinition = $this->containerBuilder->findDefinition($factoryServiceId);
        $factoryClass = $factoryServiceDefinition->getClass();
        $this->validateFactoryClassAndMethod($factoryClass, $factoryMethod);
    }