Neos\Flow\Core\ApplicationContext::__construct PHP Метод

    public function __construct($contextString)
    {
        if (strstr($contextString, '/') === false) {
            $this->rootContextString = $contextString;
            $this->parentContext = null;
        } else {
            $contextStringParts = explode('/', $contextString);
            $this->rootContextString = $contextStringParts[0];
            array_pop($contextStringParts);
            $this->parentContext = new ApplicationContext(implode('/', $contextStringParts));
        }
        if (!in_array($this->rootContextString, ['Development', 'Production', 'Testing'])) {
            throw new FlowException('The given context "' . $contextString . '" was not valid. Only allowed are Development, Production and Testing, including their sub-contexts', 1335436551);
        }
        $this->contextString = $contextString;
    }