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<?php |
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/** |
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* Abstract watcher |
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* User: moyo |
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* Date: 13/10/2017 |
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* Time: 6:21 PM |
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*/ |
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namespace Carno\Consul\APIs; |
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use Carno\Consul\Chips\SVersions; |
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use Carno\HTTP\Standard\Response; |
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use Carno\Promise\Promise; |
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use Carno\Promise\Promised; |
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abstract class AbstractWatcher extends AbstractGate |
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{ |
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// service version index |
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protected const INDEX_HEADER_KEY = 'X-Consul-Index'; |
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/** |
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* 10m |
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* @var int |
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*/ |
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protected $timeout = 600000; |
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/** |
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* wait time for http long polling |
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* @var string |
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*/ |
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protected $blockingWait = '5m'; |
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/** |
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* rand wait time for empty results (milliseconds) [min,max] |
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* @var int[] |
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*/ |
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protected $emptyWait = [1000, 2000]; |
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/** |
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* @var Promised |
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*/ |
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private $canceller = null; |
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/** |
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* @param int $index |
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*/ |
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protected function setVIndex(int $index) : void |
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{ |
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$this->setQuery('wait', $this->blockingWait); |
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$index && $this->setQuery('index', $index); |
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} |
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/** |
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* @param SVersions $versions |
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* @param Response $response |
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*/ |
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protected function assignVIndex($versions, Response $response) : void |
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{ |
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$versions->setVersion($response->getHeaderLine(self::INDEX_HEADER_KEY)); |
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} |
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/** |
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* @param Promised $superior |
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* @return static |
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*/ |
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public function setCanceller(Promised $superior) : self |
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{ |
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$superior->then(function () { |
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$this->canceller && $this->canceller->pended() && $this->canceller->resolve(); |
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}); |
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return $this; |
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} |
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/** |
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* @return Promised |
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*/ |
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protected function getCanceller() : Promised |
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{ |
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return $this->canceller = Promise::deferred(); |
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} |
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} |
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carno-php /
consul
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