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<?php |
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declare(strict_types=1); |
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namespace WyriHaximus\React\Inspector\PhuninNode; |
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use React\Promise\PromiseInterface; |
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use WyriHaximus\PhuninNode\Configuration; |
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use WyriHaximus\PhuninNode\Metric; |
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use WyriHaximus\PhuninNode\Node; |
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use WyriHaximus\PhuninNode\PluginInterface; |
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use WyriHaximus\React\Inspector\InfoProvider; |
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use function React\Promise\resolve; |
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class Streams implements PluginInterface |
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{ |
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/** |
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* @var InfoProvider |
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*/ |
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protected $infoProvider; |
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/** |
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* @var Configuration |
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*/ |
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protected $configuration; |
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/** |
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* Info constructor. |
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* @param InfoProvider $infoProvider |
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*/ |
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public function __construct(InfoProvider $infoProvider) |
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{ |
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$this->infoProvider = $infoProvider; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setNode(Node $node) |
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{ |
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$this->node = $node; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getSlug(): string |
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{ |
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return 'event_loop_streams'; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getCategorySlug(): string |
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{ |
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return 'event_loop'; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getCapabilities(): array |
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{ |
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return []; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getConfiguration(): PromiseInterface |
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{ |
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if ($this->configuration instanceof Configuration) { |
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return resolve($this->configuration); |
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} |
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$this->configuration = new Configuration(); |
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$this->configuration->setPair('graph_category', 'event_loop'); |
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$this->configuration->setPair('graph_title', 'Streams'); |
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$this->configuration->setPair('current_read_streams.label', 'Current Read Streams'); |
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$this->configuration->setPair('current_write_streams.label', 'Current Write Streams'); |
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return resolve($this->configuration); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getValues(): PromiseInterface |
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{ |
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$counters = $this->infoProvider->getCounters(); |
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$storage = new \SplObjectStorage(); |
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$storage->attach(new Metric('current_read_streams', (float)$counters['streams']['read']['current'])); |
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$storage->attach(new Metric('current_write_streams', (float)$counters['streams']['write']['current'])); |
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return resolve($storage); |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: