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<?php
/**
* @copyright Copyright (c) 2016 Bjoern Schiessle <bjoern@schiessle.org>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\ServerInfo;
use OCP\IDBConnection;
class StorageStatistics {
/** @var IDBConnection */
private $connection;
/**
* SystemStatistics constructor.
*
* @param IDBConnection $connection
*/
public function __construct(IDBConnection $connection) {
$this->connection = $connection;
}
public function getStorageStatistics() {
return [
'num_users' => $this->countUserEntries(),
'num_files' => $this->countEntries('filecache'),
'num_storages' => $this->countEntries('storages'),
'num_storages_local' => $this->countStorages('local'),
'num_storages_home' => $this->countStorages('home'),
'num_storages_other' => $this->countStorages('other'),
];
}
/**
* count number of users
*
* @return int
*/
protected function countUserEntries() {
$query = $this->connection->getQueryBuilder();
$query->selectAlias($query->createFunction('COUNT(*)'), 'num_entries')
->from('preferences')
->where($query->expr()->eq('configkey', $query->createNamedParameter('lastLogin')));
$result = $query->execute();
$row = $result->fetch();
$result->closeCursor();
return (int) $row['num_entries'];
}
/**
* @param string $tableName
* @return int
*/
protected function countEntries($tableName) {
$query = $this->connection->getQueryBuilder();
$query->selectAlias($query->createFunction('COUNT(*)'), 'num_entries')
->from($tableName);
$result = $query->execute();
$row = $result->fetch();
$result->closeCursor();
return (int) $row['num_entries'];
}
/**
* @param string $type
* @return int
*/
protected function countStorages($type) {
$query = $this->connection->getQueryBuilder();
$query->selectAlias($query->createFunction('COUNT(*)'), 'num_entries')
->from('storages');
if ($type === 'home') {
$query->where($query->expr()->like('id', $query->createNamedParameter('home::%')));
} else if ($type === 'local') {
$query->where($query->expr()->like('id', $query->createNamedParameter('local::%')));
} else if ($type === 'other') {
$query->where($query->expr()->notLike('id', $query->createNamedParameter('home::%')));
$query->andWhere($query->expr()->notLike('id', $query->createNamedParameter('local::%')));
}
$result = $query->execute();
$row = $result->fetch();
$result->closeCursor();
return (int) $row['num_entries'];
}
}