Viewing file:  CacheCollector.php (4.08 KB) -rw-rw-rw-
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<?php
namespace Barryvdh\Debugbar\DataCollector;
use DebugBar\DataCollector\TimeDataCollector;
use DebugBar\DataFormatter\HasDataFormatter;
use Illuminate\Cache\Events\{
CacheFlushed,
CacheFlushFailed,
CacheFlushing,
CacheHit,
CacheMissed,
ForgettingKey,
KeyForgetFailed,
KeyForgotten,
KeyWriteFailed,
KeyWritten,
RetrievingKey,
WritingKey,
};
use Illuminate\Events\Dispatcher;
class CacheCollector extends TimeDataCollector
{
use HasDataFormatter;
/** @var bool */
protected $collectValues;
/** @var array */
protected $eventStarts = [];
/** @var array */
protected $classMap = [
CacheHit::class => ['hit', RetrievingKey::class],
CacheMissed::class => ['missed', RetrievingKey::class],
CacheFlushed::class => ['flushed', CacheFlushing::class],
CacheFlushFailed::class => ['flush_failed', CacheFlushing::class],
KeyWritten::class => ['written', WritingKey::class],
KeyWriteFailed::class => ['write_failed', WritingKey::class],
KeyForgotten::class => ['forgotten', ForgettingKey::class],
KeyForgetFailed::class => ['forget_failed', ForgettingKey::class],
];
public function __construct($requestStartTime, $collectValues)
{
parent::__construct($requestStartTime);
$this->collectValues = $collectValues;
}
public function onCacheEvent($event)
{
$class = get_class($event);
$params = get_object_vars($event);
$label = $this->classMap[$class][0];
if (isset($params['value'])) {
if ($this->collectValues) {
if ($this->isHtmlVarDumperUsed()) {
$params['value'] = $this->getVarDumper()->renderVar($params['value']);
} else {
$params['value'] = htmlspecialchars($this->getDataFormatter()->formatVar($params['value']));
}
} else {
unset($params['value']);
}
}
if (!empty($params['key'] ?? null) && in_array($label, ['hit', 'written'])) {
$params['delete'] = route('debugbar.cache.delete', [
'key' => urlencode($params['key']),
'tags' => !empty($params['tags']) ? json_encode($params['tags']) : '',
]);
}
$time = microtime(true);
$startHashKey = $this->getEventHash($this->classMap[$class][1] ?? '', $params);
$startTime = $this->eventStarts[$startHashKey] ?? $time;
$this->addMeasure($label . "\t" . ($params['key'] ?? ''), $startTime, $time, $params);
}
public function onStartCacheEvent($event)
{
$startHashKey = $this->getEventHash(get_class($event), get_object_vars($event));
$this->eventStarts[$startHashKey] = microtime(true);
}
private function getEventHash(string $class, array $params): string
{
unset($params['value']);
return $class . ':' . substr(hash('sha256', json_encode($params)), 0, 12);
}
public function subscribe(Dispatcher $dispatcher)
{
foreach (array_keys($this->classMap) as $eventClass) {
$dispatcher->listen($eventClass, [$this, 'onCacheEvent']);
}
$startEvents = array_unique(array_filter(array_map(
fn ($values) => $values[1] ?? null,
array_values($this->classMap)
)));
foreach ($startEvents as $eventClass) {
$dispatcher->listen($eventClass, [$this, 'onStartCacheEvent']);
}
}
public function collect()
{
$data = parent::collect();
$data['nb_measures'] = $data['count'] = count($data['measures']);
return $data;
}
public function getName()
{
return 'cache';
}
public function getWidgets()
{
return [
'cache' => [
'icon' => 'clipboard',
'widget' => 'PhpDebugBar.Widgets.LaravelCacheWidget',
'map' => 'cache',
'default' => '{}',
],
'cache:badge' => [
'map' => 'cache.nb_measures',
'default' => 'null',
],
];
}
}
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