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Mini Shell
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Cache\Adapter;
use Psr\Cache\CacheItemInterface;
use Symfony\Component\Cache\CacheItem;
use Symfony\Component\Cache\PruneableInterface;
use Symfony\Component\Cache\ResettableInterface;
use Symfony\Contracts\Cache\CacheInterface;
use Symfony\Contracts\Service\ResetInterface;
/**
* An adapter that collects data about all cache calls.
*
* @author Aaron Scherer <aequasi@gmail.com>
* @author Tobias Nyholm <tobias.nyholm@gmail.com>
* @author Nicolas Grekas <p@tchwork.com>
*/
class TraceableAdapter implements AdapterInterface, CacheInterface, PruneableInterface, ResettableInterface
{
protected $pool;
private array $calls = [];
public function __construct(AdapterInterface $pool)
{
$this->pool = $pool;
}
public function get(string $key, callable $callback, float $beta = null, array &$metadata = null): mixed
{
if (!$this->pool instanceof CacheInterface) {
throw new \BadMethodCallException(sprintf('Cannot call "%s::get()": this class doesn\'t implement "%s".', get_debug_type($this->pool), CacheInterface::class));
}
$isHit = true;
$callback = function (CacheItem $item, bool &$save) use ($callback, &$isHit) {
$isHit = $item->isHit();
return $callback($item, $save);
};
$event = $this->start(__FUNCTION__);
try {
$value = $this->pool->get($key, $callback, $beta, $metadata);
$event->result[$key] = get_debug_type($value);
} finally {
$event->end = microtime(true);
}
if ($isHit) {
++$event->hits;
} else {
++$event->misses;
}
return $value;
}
public function getItem(mixed $key): CacheItem
{
$event = $this->start(__FUNCTION__);
try {
$item = $this->pool->getItem($key);
} finally {
$event->end = microtime(true);
}
if ($event->result[$key] = $item->isHit()) {
++$event->hits;
} else {
++$event->misses;
}
return $item;
}
public function hasItem(mixed $key): bool
{
$event = $this->start(__FUNCTION__);
try {
return $event->result[$key] = $this->pool->hasItem($key);
} finally {
$event->end = microtime(true);
}
}
public function deleteItem(mixed $key): bool
{
$event = $this->start(__FUNCTION__);
try {
return $event->result[$key] = $this->pool->deleteItem($key);
} finally {
$event->end = microtime(true);
}
}
public function save(CacheItemInterface $item): bool
{
$event = $this->start(__FUNCTION__);
try {
return $event->result[$item->getKey()] = $this->pool->save($item);
} finally {
$event->end = microtime(true);
}
}
public function saveDeferred(CacheItemInterface $item): bool
{
$event = $this->start(__FUNCTION__);
try {
return $event->result[$item->getKey()] = $this->pool->saveDeferred($item);
} finally {
$event->end = microtime(true);
}
}
public function getItems(array $keys = []): iterable
{
$event = $this->start(__FUNCTION__);
try {
$result = $this->pool->getItems($keys);
} finally {
$event->end = microtime(true);
}
$f = function () use ($result, $event) {
$event->result = [];
foreach ($result as $key => $item) {
if ($event->result[$key] = $item->isHit()) {
++$event->hits;
} else {
++$event->misses;
}
yield $key => $item;
}
};
return $f();
}
public function clear(string $prefix = ''): bool
{
$event = $this->start(__FUNCTION__);
try {
if ($this->pool instanceof AdapterInterface) {
return $event->result = $this->pool->clear($prefix);
}
return $event->result = $this->pool->clear();
} finally {
$event->end = microtime(true);
}
}
public function deleteItems(array $keys): bool
{
$event = $this->start(__FUNCTION__);
$event->result['keys'] = $keys;
try {
return $event->result['result'] = $this->pool->deleteItems($keys);
} finally {
$event->end = microtime(true);
}
}
public function commit(): bool
{
$event = $this->start(__FUNCTION__);
try {
return $event->result = $this->pool->commit();
} finally {
$event->end = microtime(true);
}
}
public function prune(): bool
{
if (!$this->pool instanceof PruneableInterface) {
return false;
}
$event = $this->start(__FUNCTION__);
try {
return $event->result = $this->pool->prune();
} finally {
$event->end = microtime(true);
}
}
/**
* @return void
*/
public function reset()
{
if ($this->pool instanceof ResetInterface) {
$this->pool->reset();
}
$this->clearCalls();
}
public function delete(string $key): bool
{
$event = $this->start(__FUNCTION__);
try {
return $event->result[$key] = $this->pool->deleteItem($key);
} finally {
$event->end = microtime(true);
}
}
/**
* @return array
*/
public function getCalls()
{
return $this->calls;
}
/**
* @return void
*/
public function clearCalls()
{
$this->calls = [];
}
public function getPool(): AdapterInterface
{
return $this->pool;
}
/**
* @return TraceableAdapterEvent
*/
protected function start(string $name)
{
$this->calls[] = $event = new TraceableAdapterEvent();
$event->name = $name;
$event->start = microtime(true);
return $event;
}
}
/**
* @internal
*/
class TraceableAdapterEvent
{
public string $name;
public float $start;
public float $end;
public array|bool $result;
public int $hits = 0;
public int $misses = 0;
}
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