Method readData

lib/Datasource/LocalJson.php:71–93

* Read the Data * @param $option * @return array available options of the data source */

($option)

	 * @return array available options of the data source
	 */
	public function readData($option): array {
		$file = $this->rootFolder->getUserFolder($option['user_id'])->get($option['link']);
		$cache = $this->getCacheMetadata($option, $file->getMTime());
		if ($cache['notModified'] === true) {
			return [
				'header' => [],
				'dimensions' => [],
				'data' => [],
				'rawdata' => null,
				'error' => 0,
				'cache' => $cache,
			];
		}

		$rawResult = $file->getContent();

		$return = $this->jsonParser($option, $rawResult);
		$return['rawdata'] = $rawResult;
		$return['error'] = 0;
		$return['cache'] = $cache;

		return $return;
	}

	private function getCacheMetadata(array $option, int $mtime): array {
		$currentCacheKey = 'ljson-' . md5($option['link'] . '|' . $mtime);