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<?php
declare(strict_types = 1);
/**
* SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Memcache;
use OC\AppFramework\Http\Request;
use OCP\AppFramework\Http\Response;
use OCP\DataCollector\AbstractDataCollector;
use OCP\IMemcacheTTL;
/**
* Cache wrapper that logs profiling information
* @template-implements \ArrayAccess<string,mixed>
*/
class ProfilerWrapperCache extends AbstractDataCollector implements IMemcacheTTL, \ArrayAccess {
/** @var Redis $wrappedCache*/
protected $wrappedCache;
/** @var string $prefix */
protected $prefix;
/** @var string $type */
private $type;
public function __construct(Redis $wrappedCache, string $type) {
$this->prefix = $wrappedCache->getPrefix();
$this->wrappedCache = $wrappedCache;
$this->type = $type;
$this->data['queries'] = [];
$this->data['cacheHit'] = 0;
$this->data['cacheMiss'] = 0;
}
public function getPrefix(): string {
return $this->prefix;
}
/** @inheritDoc */
public function get($key) {
$start = microtime(true);
$ret = $this->wrappedCache->get($key);
if ($ret === null) {
$this->data['cacheMiss']++;
} else {
$this->data['cacheHit']++;
}
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::get::' . $key,
'hit' => $ret !== null,
];
return $ret;
}
/** @inheritDoc */
public function set($key, $value, $ttl = 0) {
$start = microtime(true);
$ret = $this->wrappedCache->set($key, $value, $ttl);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::set::' . $key,
];
return $ret;
}
/** @inheritDoc */
public function hasKey($key) {
$start = microtime(true);
$ret = $this->wrappedCache->hasKey($key);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::hasKey::' . $key,
];
return $ret;
}
/** @inheritDoc */
public function remove($key) {
$start = microtime(true);
$ret = $this->wrappedCache->remove($key);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::remove::' . $key,
];
return $ret;
}
/** @inheritDoc */
public function clear($prefix = '') {
$start = microtime(true);
$ret = $this->wrappedCache->clear($prefix);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::clear::' . $prefix,
];
return $ret;
}
/** @inheritDoc */
public function add($key, $value, $ttl = 0) {
$start = microtime(true);
$ret = $this->wrappedCache->add($key, $value, $ttl);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::add::' . $key,
];
return $ret;
}
/** @inheritDoc */
public function inc($key, $step = 1) {
$start = microtime(true);
$ret = $this->wrappedCache->inc($key, $step);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::inc::' . $key,
];
return $ret;
}
/** @inheritDoc */
public function dec($key, $step = 1) {
$start = microtime(true);
$ret = $this->wrappedCache->dec($key, $step);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::dev::' . $key,
];
return $ret;
}
/** @inheritDoc */
public function cas($key, $old, $new) {
$start = microtime(true);
$ret = $this->wrappedCache->cas($key, $old, $new);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::cas::' . $key,
];
return $ret;
}
/** @inheritDoc */
public function cad($key, $old) {
$start = microtime(true);
$ret = $this->wrappedCache->cad($key, $old);
$this->data['queries'][] = [
'start' => $start,
'end' => microtime(true),
'op' => $this->getPrefix() . '::cad::' . $key,
];
return $ret;
}
/** @inheritDoc */
public function setTTL(string $key, int $ttl) {
$this->wrappedCache->setTTL($key, $ttl);
}
public function getTTL(string $key): int|false {
return $this->wrappedCache->getTTL($key);
}
public function compareSetTTL(string $key, mixed $value, int $ttl): bool {
return $this->wrappedCache->compareSetTTL($key, $value, $ttl);
}
public function offsetExists($offset): bool {
return $this->hasKey($offset);
}
public function offsetSet($offset, $value): void {
$this->set($offset, $value);
}
/**
* @return mixed
*/
#[\ReturnTypeWillChange]
public function offsetGet($offset) {
return $this->get($offset);
}
public function offsetUnset($offset): void {
$this->remove($offset);
}
public function collect(Request $request, Response $response, ?\Throwable $exception = null): void {
// Nothing to do here $data is already ready
}
public function getName(): string {
return 'cache/' . $this->type . '/' . $this->prefix;
}
public static function isAvailable(): bool {
return true;
}
}
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