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- <?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\DataCollector;
- use Symfony\Component\Cache\Adapter\TraceableAdapter;
- use Symfony\Component\Cache\Adapter\TraceableAdapterEvent;
- use Symfony\Component\HttpFoundation\Request;
- use Symfony\Component\HttpFoundation\Response;
- use Symfony\Component\HttpKernel\DataCollector\DataCollector;
- use Symfony\Component\HttpKernel\DataCollector\LateDataCollectorInterface;
- /**
- * @author Aaron Scherer <aequasi@gmail.com>
- * @author Tobias Nyholm <tobias.nyholm@gmail.com>
- *
- * @final
- */
- class CacheDataCollector extends DataCollector implements LateDataCollectorInterface
- {
- /**
- * @var TraceableAdapter[]
- */
- private $instances = [];
- public function addInstance(string $name, TraceableAdapter $instance)
- {
- $this->instances[$name] = $instance;
- }
- /**
- * {@inheritdoc}
- */
- public function collect(Request $request, Response $response, \Throwable $exception = null)
- {
- $empty = ['calls' => [], 'config' => [], 'options' => [], 'statistics' => []];
- $this->data = ['instances' => $empty, 'total' => $empty];
- foreach ($this->instances as $name => $instance) {
- $this->data['instances']['calls'][$name] = $instance->getCalls();
- }
- $this->data['instances']['statistics'] = $this->calculateStatistics();
- $this->data['total']['statistics'] = $this->calculateTotalStatistics();
- }
- public function reset()
- {
- $this->data = [];
- foreach ($this->instances as $instance) {
- $instance->clearCalls();
- }
- }
- public function lateCollect()
- {
- $this->data['instances']['calls'] = $this->cloneVar($this->data['instances']['calls']);
- }
- /**
- * {@inheritdoc}
- */
- public function getName()
- {
- return 'cache';
- }
- /**
- * Method returns amount of logged Cache reads: "get" calls.
- *
- * @return array
- */
- public function getStatistics()
- {
- return $this->data['instances']['statistics'];
- }
- /**
- * Method returns the statistic totals.
- *
- * @return array
- */
- public function getTotals()
- {
- return $this->data['total']['statistics'];
- }
- /**
- * Method returns all logged Cache call objects.
- *
- * @return mixed
- */
- public function getCalls()
- {
- return $this->data['instances']['calls'];
- }
- private function calculateStatistics(): array
- {
- $statistics = [];
- foreach ($this->data['instances']['calls'] as $name => $calls) {
- $statistics[$name] = [
- 'calls' => 0,
- 'time' => 0,
- 'reads' => 0,
- 'writes' => 0,
- 'deletes' => 0,
- 'hits' => 0,
- 'misses' => 0,
- ];
- /** @var TraceableAdapterEvent $call */
- foreach ($calls as $call) {
- ++$statistics[$name]['calls'];
- $statistics[$name]['time'] += $call->end - $call->start;
- if ('get' === $call->name) {
- ++$statistics[$name]['reads'];
- if ($call->hits) {
- ++$statistics[$name]['hits'];
- } else {
- ++$statistics[$name]['misses'];
- ++$statistics[$name]['writes'];
- }
- } elseif ('getItem' === $call->name) {
- ++$statistics[$name]['reads'];
- if ($call->hits) {
- ++$statistics[$name]['hits'];
- } else {
- ++$statistics[$name]['misses'];
- }
- } elseif ('getItems' === $call->name) {
- $statistics[$name]['reads'] += $call->hits + $call->misses;
- $statistics[$name]['hits'] += $call->hits;
- $statistics[$name]['misses'] += $call->misses;
- } elseif ('hasItem' === $call->name) {
- ++$statistics[$name]['reads'];
- if (false === $call->result) {
- ++$statistics[$name]['misses'];
- } else {
- ++$statistics[$name]['hits'];
- }
- } elseif ('save' === $call->name) {
- ++$statistics[$name]['writes'];
- } elseif ('deleteItem' === $call->name) {
- ++$statistics[$name]['deletes'];
- }
- }
- if ($statistics[$name]['reads']) {
- $statistics[$name]['hit_read_ratio'] = round(100 * $statistics[$name]['hits'] / $statistics[$name]['reads'], 2);
- } else {
- $statistics[$name]['hit_read_ratio'] = null;
- }
- }
- return $statistics;
- }
- private function calculateTotalStatistics(): array
- {
- $statistics = $this->getStatistics();
- $totals = [
- 'calls' => 0,
- 'time' => 0,
- 'reads' => 0,
- 'writes' => 0,
- 'deletes' => 0,
- 'hits' => 0,
- 'misses' => 0,
- ];
- foreach ($statistics as $name => $values) {
- foreach ($totals as $key => $value) {
- $totals[$key] += $statistics[$name][$key];
- }
- }
- if ($totals['reads']) {
- $totals['hit_read_ratio'] = round(100 * $totals['hits'] / $totals['reads'], 2);
- } else {
- $totals['hit_read_ratio'] = null;
- }
- return $totals;
- }
- }
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