Function locationStorageCheck

lib/api/apiUtils/object/locationStorageCheck.js:22–46

* locationStorageCheck - will ensure there is enough space left for object on * PUT operations, or will update metric on DELETE * NOTE: storage limit may not be exactly enforced in the case of concurrent * requests when near limit * @param {string} location - name of location to check quota * @

(location, updateSize, log, cb)

 * @return {undefined}
 */
function locationStorageCheck(location, updateSize, log, cb) {
    const lc = config.locationConstraints;
    const sizeLimitGB = lc[location] ? lc[location].sizeLimitGB : undefined;
    if (updateSize === 0 || sizeLimitGB === undefined || sizeLimitGB === null) {
        return cb();
    }
    // no need to list location metric, since it should be decreased
    if (updateSize < 0) {
        return pushLocationMetric(location, updateSize, log, cb);
    }
    return getLocationMetric(location, log, (err, bytesStored) => {
        if (err) {
            log.error(`Error listing metrics from Utapi: ${err.message}`);
            return cb(err);
        }
        const newStorageSize = parseInt(bytesStored, 10) + updateSize;
        const sizeLimitBytes = _gbToBytes(sizeLimitGB);
        if (sizeLimitBytes < newStorageSize) {
            return cb(errorInstances.AccessDenied.customizeDescription(
                `The assigned storage space limit for location ${location} ` +
                'will be exceeded'));
        }
        return pushLocationMetric(location, updateSize, log, cb);
    });
}

module.exports = locationStorageCheck;