lib/private/Diagnostics/QueryLogger.php
<?php
/**
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Piotr Mrowczynski <piotr@owncloud.com>
*
* @copyright Copyright (c) 2018, ownCloud GmbH
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Diagnostics;
use OCP\Diagnostics\IQueryLogger;
use function microtime;
class QueryLogger implements IQueryLogger {
protected ?Query $activeQuery = null;
/**
* @var Query[]
*/
protected array $queries = [];
private bool $activated = false;
# allows to overwrite the current timestamp for testing purpose
private ?float $testNow;
public function __construct(?float $testNow = null) {
$this->testNow = $testNow;
}
/**
* @inheritdoc
*/
public function startQuery($sql, array $params = null, array $types = null) {
if ($this->activated) {
$this->activeQuery = new Query($sql, $params ?? [], $this->getMicrotime());
}
}
/**
* @inheritdoc
*/
public function stopQuery() {
if ($this->activated && $this->activeQuery) {
$this->activeQuery->end($this->getMicrotime());
$this->queries[] = $this->activeQuery;
$this->activeQuery = null;
}
}
/**
* @inheritdoc
*/
public function getQueries() {
return $this->queries;
}
/**
* @inheritdoc
*/
public function activate() {
$this->activated = true;
}
public function flush(): void {
$this->queries = [];
}
private function getMicrotime(): float {
if ($this->testNow) {
return $this->testNow;
}
return microtime(true);
}
}