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<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Christoph Wurst <[email protected]> |
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* @author Joas Schilling <[email protected]> |
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* @author Jörn Friedrich Dreyer <[email protected]> |
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* @author Morris Jobke <[email protected]> |
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* @author Robin Appelman <[email protected]> |
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* @author Roeland Jago Douma <[email protected]> |
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* |
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* @license AGPL-3.0 |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OC\Files\ObjectStore; |
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use OC\Files\Cache\Scanner; |
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use OCP\DB\QueryBuilder\IQueryBuilder; |
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use OCP\Files\FileInfo; |
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class ObjectStoreScanner extends Scanner { |
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public function scanFile($file, $reuseExisting = 0, $parentId = -1, $cacheData = null, $lock = true, $data = null) { |
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return []; |
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} |
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public function scan($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $lock = true) { |
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return []; |
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} |
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protected function scanChildren($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $folderId = null, $lock = true, array $data = []) { |
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return 0; |
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} |
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public function backgroundScan() { |
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$lastPath = null; |
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// find any path marked as unscanned and run the scanner until no more paths are unscanned (or we get stuck) |
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// we sort by path DESC to ensure that contents of a folder are handled before the parent folder |
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while (($path = $this->getIncomplete()) !== false && $path !== $lastPath) { |
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$this->runBackgroundScanJob(function () use ($path) { |
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$item = $this->cache->get($path); |
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if ($item && $item->getMimeType() !== FileInfo::MIMETYPE_FOLDER) { |
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$fh = $this->storage->fopen($path, 'r'); |
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if ($fh) { |
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$stat = fstat($fh); |
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if ($stat['size']) { |
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$this->cache->update($item->getId(), ['size' => $stat['size']]); |
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} |
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} |
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} |
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}, $path); |
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// FIXME: this won't proceed with the next item, needs revamping of getIncomplete() |
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// to make this possible |
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$lastPath = $path; |
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} |
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} |
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/** |
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* Unlike the default Cache::getIncomplete this one sorts by path. |
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* |
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* This is needed since self::backgroundScan doesn't fix child entries when running on a parent folder. |
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* By sorting by path we ensure that we encounter the child entries first. |
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* |
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* @return false|string |
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* @throws \OCP\DB\Exception |
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*/ |
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private function getIncomplete() { |
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$query = $this->connection->getQueryBuilder(); |
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$query->select('path') |
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->from('filecache') |
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->where($query->expr()->eq('storage', $query->createNamedParameter($this->cache->getNumericStorageId(), IQueryBuilder::PARAM_INT))) |
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->andWhere($query->expr()->lt('size', $query->createNamedParameter(0, IQueryBuilder::PARAM_INT))) |
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->orderBy('path', 'DESC') |
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->setMaxResults(1); |
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$result = $query->executeQuery(); |
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$path = $result->fetchOne(); |
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$result->closeCursor(); |
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if ($path === false) { |
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return false; |
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} |
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// Make sure Oracle does not continue with null for empty strings |
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return (string)$path; |
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} |
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} |
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nextcloud /
server
