103 lines
2.7 KiB
PHP
103 lines
2.7 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Messenger\Middleware;
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use Symfony\Component\Messenger\Envelope;
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use Symfony\Component\Stopwatch\Stopwatch;
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/**
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* Collects some data about a middleware.
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*
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* @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
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*/
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class TraceableMiddleware implements MiddlewareInterface
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{
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private $stopwatch;
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private $busName;
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private $eventCategory;
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public function __construct(Stopwatch $stopwatch, string $busName, string $eventCategory = 'messenger.middleware')
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{
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$this->stopwatch = $stopwatch;
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$this->busName = $busName;
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$this->eventCategory = $eventCategory;
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}
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/**
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* {@inheritdoc}
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*/
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public function handle(Envelope $envelope, StackInterface $stack): Envelope
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{
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$stack = new TraceableStack($stack, $this->stopwatch, $this->busName, $this->eventCategory);
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try {
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return $stack->next()->handle($envelope, $stack);
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} finally {
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$stack->stop();
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}
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}
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}
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/**
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* @internal
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*/
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class TraceableStack implements StackInterface
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{
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private $stack;
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private $stopwatch;
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private $busName;
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private $eventCategory;
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private $currentEvent;
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public function __construct(StackInterface $stack, Stopwatch $stopwatch, string $busName, string $eventCategory)
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{
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$this->stack = $stack;
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$this->stopwatch = $stopwatch;
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$this->busName = $busName;
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$this->eventCategory = $eventCategory;
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}
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/**
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* {@inheritdoc}
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*/
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public function next(): MiddlewareInterface
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{
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if (null !== $this->currentEvent && $this->stopwatch->isStarted($this->currentEvent)) {
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$this->stopwatch->stop($this->currentEvent);
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}
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if ($this->stack === $nextMiddleware = $this->stack->next()) {
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$this->currentEvent = 'Tail';
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} else {
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$this->currentEvent = sprintf('"%s"', get_debug_type($nextMiddleware));
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}
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$this->currentEvent .= sprintf(' on "%s"', $this->busName);
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$this->stopwatch->start($this->currentEvent, $this->eventCategory);
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return $nextMiddleware;
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}
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public function stop(): void
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{
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if (null !== $this->currentEvent && $this->stopwatch->isStarted($this->currentEvent)) {
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$this->stopwatch->stop($this->currentEvent);
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}
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$this->currentEvent = null;
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}
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public function __clone()
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{
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$this->stack = clone $this->stack;
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}
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}
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