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<?php |
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/** |
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* @copyright Robin Appelman <[email protected]> |
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* |
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* @author Joas Schilling <[email protected]> |
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* @author Robin Appelman <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program 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 as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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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 |
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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\Cache; |
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use OCP\DB\QueryBuilder\IQueryBuilder; |
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use OCP\IDBConnection; |
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/** |
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* Handle the mapping between the string and numeric storage ids |
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* |
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* Each storage has 2 different ids |
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* a string id which is generated by the storage backend and reflects the configuration of the storage (e.g. 'smb://user@host/share') |
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* and a numeric storage id which is referenced in the file cache |
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* |
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* A mapping between the two storage ids is stored in the database and accessible trough this class |
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* |
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* @package OC\Files\Cache |
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*/ |
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class StorageGlobal { |
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/** @var IDBConnection */ |
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private $connection; |
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/** @var array<string, array> */ |
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private $cache = []; |
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/** @var array<int, array> */ |
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private $numericIdCache = []; |
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public function __construct(IDBConnection $connection) { |
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$this->connection = $connection; |
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} |
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/** |
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* @param string[] $storageIds |
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*/ |
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public function loadForStorageIds(array $storageIds) { |
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$builder = $this->connection->getQueryBuilder(); |
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$query = $builder->select(['id', 'numeric_id', 'available', 'last_checked']) |
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->from('storages') |
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->where($builder->expr()->in('id', $builder->createNamedParameter(array_values($storageIds), IQueryBuilder::PARAM_STR_ARRAY))); |
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$result = $query->execute(); |
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while ($row = $result->fetch()) { |
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$this->cache[$row['id']] = $row; |
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} |
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$result->closeCursor(); |
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} |
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/** |
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* @param string $storageId |
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* @return array|null |
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*/ |
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public function getStorageInfo(string $storageId): ?array { |
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if (!isset($this->cache[$storageId])) { |
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$builder = $this->connection->getQueryBuilder(); |
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$query = $builder->select(['id', 'numeric_id', 'available', 'last_checked']) |
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->from('storages') |
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->where($builder->expr()->eq('id', $builder->createNamedParameter($storageId))); |
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$result = $query->execute(); |
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$row = $result->fetch(); |
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$result->closeCursor(); |
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if ($row) { |
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$this->cache[$storageId] = $row; |
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$this->numericIdCache[(int)$row['numeric_id']] = $row; |
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} |
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} |
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return $this->cache[$storageId] ?? null; |
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} |
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/** |
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* @param int $numericId |
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* @return array|null |
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*/ |
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public function getStorageInfoByNumericId(int $numericId): ?array { |
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if (!isset($this->numericIdCache[$numericId])) { |
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$builder = $this->connection->getQueryBuilder(); |
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$query = $builder->select(['id', 'numeric_id', 'available', 'last_checked']) |
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->from('storages') |
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->where($builder->expr()->eq('numeric_id', $builder->createNamedParameter($numericId))); |
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$result = $query->execute(); |
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$row = $result->fetch(); |
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$result->closeCursor(); |
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if ($row) { |
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$this->numericIdCache[$numericId] = $row; |
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$this->cache[$row['id']] = $row; |
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} |
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} |
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return $this->numericIdCache[$numericId] ?? null; |
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} |
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public function clearCache() { |
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$this->cache = []; |
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} |
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} |
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nextcloud /
server
