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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Piotr Mrówczyński <mrow4a@yahoo.com>
* @author Robin Appelman <robin@icewind.nl>
*
* @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 OC\Cache\CappedMemoryCache;
use OCP\Diagnostics\IQueryLogger;
class QueryLogger implements IQueryLogger {
protected int $index = 0;
protected ?Query $activeQuery = null;
/** @var CappedMemoryCache<Query> */
protected CappedMemoryCache $queries;
/**
* QueryLogger constructor.
*/
public function __construct() {
$this->queries = new CappedMemoryCache(1024);
}
/**
* @var bool - Module needs to be activated by some app
*/
private $activated = false;
/**
* @inheritdoc
*/
public function startQuery($sql, array $params = null, array $types = null) {
if ($this->activated) {
$this->activeQuery = new Query($sql, $params, microtime(true), $this->getStack());
}
}
private function getStack() {
$stack = debug_backtrace();
array_shift($stack);
array_shift($stack);
array_shift($stack);
return $stack;
}
/**
* @inheritdoc
*/
public function stopQuery() {
if ($this->activated && $this->activeQuery) {
$this->activeQuery->end(microtime(true));
$this->queries[(string)$this->index] = $this->activeQuery;
$this->index++;
$this->activeQuery = null;
}
}
/**
* @inheritdoc
*/
public function getQueries() {
return $this->queries->getData();
}
/**
* @inheritdoc
*/
public function activate() {
$this->activated = true;
}
}
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