protected function getExtensionConfiguration()
    {
        $cacheInstance = CacheService::get()->getCacheInstance();
        $hash = $this->getContextHash();

        if ($cacheInstance->has($hash)) {
            $result = $cacheInstance->get($hash);
        } else {
            $result = $this->getFullConfiguration();
            $result = (ArrayUtility::isValidPath($result, self::EXTENSION_CONFIGURATION_PATH, '.'))
                ? ArrayUtility::getValueByPath($result, self::EXTENSION_CONFIGURATION_PATH, '.')
                : [];

            if (ArrayUtility::isValidPath($result, 'settings.typoScriptIncluded', '.')) {
                $cacheInstance->set($hash, $result);
            }
        }

        return $result;
    }