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<?php |
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/** |
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* Zipkin http api v2 |
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* User: moyo |
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* Date: 24/11/2017 |
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* Time: 11:21 AM |
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*/ |
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namespace Carno\Traced\Transport; |
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use function Carno\Coroutine\co; |
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use Carno\HTTP\Client; |
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use Carno\HTTP\Exception\RequestException; |
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use Carno\HTTP\Options as HOptions; |
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use Carno\HTTP\Standard\Request; |
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use Carno\HTTP\Standard\Response; |
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use Carno\HTTP\Standard\Streams\Body; |
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use Carno\HTTP\Standard\Uri; |
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use Carno\Net\Address; |
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use Carno\Pool\Exception\SelectWaitException; |
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use Carno\Pool\Options as POptions; |
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use Carno\Promise\Promised; |
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use Carno\Timer\Timer; |
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use Carno\Traced\Chips\TransferQueued; |
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use Carno\Tracing\Contracts\Transport; |
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use Closure; |
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class ZipkinHAV2 implements Transport |
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{ |
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use TransferQueued; |
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/** |
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* batch operating |
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*/ |
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private const BATCH_INV = 1500; |
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private const BATCH_PACK = 100; |
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private const BATCH_STACK = 10000; |
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/** |
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* @var Address |
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*/ |
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private $endpoint = null; |
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/** |
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* @var string |
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*/ |
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private $path = '/api/v2/spans'; |
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/** |
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* @var Client |
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*/ |
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private $client = null; |
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/** |
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* @var string |
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*/ |
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private $daemon = null; |
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/** |
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* @param Address $endpoint |
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* @param string $identify |
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*/ |
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public function connect(Address $endpoint, string $identify = null) : void |
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{ |
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$this->options(self::BATCH_PACK, self::BATCH_STACK); |
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$this->endpoint = $endpoint->port() > 0 ? $endpoint : new Address($endpoint->host(), 80); |
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$this->path = $identify ?? $this->path; |
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$this->client = new Client( |
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(new HOptions()) |
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->setTimeouts(1000) |
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->keepalive(new POptions(1, 10, 1, 1, 90, 30, 0, 1000, 800), "zipkin:{$this->endpoint}"), |
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$this->endpoint |
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); |
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$this->daemon = Timer::loop(self::BATCH_INV, function () { |
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$this->submitting(); |
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}); |
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} |
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/** |
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* @return Promised |
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*/ |
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public function disconnect() : Promised |
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{ |
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Timer::clear($this->daemon); |
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$closing = function () { |
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$this->client->closed()->pended() && $this->client->close(); |
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}; |
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$this->stashed() ? $this->submitting($closing) : $closing(); |
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return $this->client->closed(); |
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} |
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/** |
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* @param string $data |
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*/ |
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public function loading(string $data) : void |
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{ |
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$this->stashing($data); |
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} |
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/** |
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* flush queued data |
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*/ |
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public function flushing() : void |
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{ |
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if ($this->stashed() >= self::BATCH_PACK) { |
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$this->submitting(); |
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} |
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} |
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/** |
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* really submit to remote |
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* @param Closure $then |
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*/ |
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private function submitting(Closure $then = null) : void |
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{ |
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$this->spouting(co(function (array $spans) use ($then) { |
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$request = new Request( |
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'POST', |
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new Uri('http', $this->endpoint->host(), $this->endpoint->port(), $this->path), |
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[ |
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'Content-Type' => 'application/json', |
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], |
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new Body(sprintf('[%s]', implode(',', $spans))) |
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); |
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try { |
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/** |
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* @var Response $response |
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*/ |
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$response = yield $this->client->perform($request); |
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if ((int)($response->getStatusCode() / 100) !== 2) { |
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logger('traced')->notice( |
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'Server not accepting', |
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[ |
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'endpoint' => (string)$request->getUri(), |
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'error' => sprintf('#%d->%s', $response->getStatusCode(), (string)$response->getBody()), |
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'payload' => debug() ? (string)$request->getBody() : '[IGNORED]', |
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] |
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); |
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} |
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} catch (RequestException | SelectWaitException $e) { |
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logger('traced')->notice( |
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'Posting failed', |
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[ |
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'endpoint' => (string)$request->getUri(), |
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'error' => sprintf('%s::%s', get_class($e), $e->getMessage()), |
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] |
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); |
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} |
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$then && $then(); |
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})); |
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} |
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} |
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carno-php /
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