Neos\Cache\Backend\SimpleFileBackend::configureCacheDirectory PHP Method

    protected function configureCacheDirectory()
    {
        $cacheDirectory = $this->cacheDirectory;
        if ($cacheDirectory === '') {
            $codeOrData = $this->cache instanceof PhpFrontend ? 'Code' : 'Data';
            $baseDirectory = $this->baseDirectory ?: $this->environmentConfiguration->getFileCacheBasePath();
            $cacheDirectory = $baseDirectory . 'Cache/' . $codeOrData . '/' . $this->cacheIdentifier . '/';
        }
        if (!is_writable($cacheDirectory)) {
            try {
                Files::createDirectoryRecursively($cacheDirectory);
            } catch (FilesException $exception) {
                throw new Exception('The cache directory "' . $cacheDirectory . '" could not be created.', 1264426237);
            }
        }
        if (!is_dir($cacheDirectory) && !is_link($cacheDirectory)) {
            throw new Exception('The cache directory "' . $cacheDirectory . '" does not exist.', 1203965199);
        }
        if (!is_writable($cacheDirectory)) {
            throw new Exception('The cache directory "' . $cacheDirectory . '" is not writable.', 1203965200);
        }
        $this->cacheDirectory = $cacheDirectory;
    }