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<?php |
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/** |
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* Zipkin json format 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\Protocol; |
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use Carno\Tracing\Contracts\Protocol; |
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use Carno\Tracing\Contracts\Vars\CTX; |
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use Carno\Tracing\Contracts\Vars\EXT; |
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use Carno\Tracing\Contracts\Vars\TAG; |
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use Carno\Tracing\Standard\Endpoint; |
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use Carno\Tracing\Standard\Span; |
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class ZipkinJFV2 implements Protocol |
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{ |
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/** |
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* @param Span $span |
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* @return string |
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*/ |
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public function serialize(Span $span) : string |
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{ |
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$data = [ |
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'traceId' => $span->getBaggageItem(CTX::TRACE_ID), |
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'id' => $span->getBaggageItem(CTX::SPAN_ID), |
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'name' => $span->getOperationName(), |
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]; |
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$parentID = $span->getBaggageItem(CTX::PARENT_SPAN_ID); |
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if ($parentID) { |
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$data['parentId'] = str_pad($parentID, 16, '0', STR_PAD_LEFT); |
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} |
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$data['timestamp'] = $startTime = $span->getStartTime(); |
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$finishTime = $span->getFinishTime(); |
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if ($finishTime) { |
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$data['duration'] = $finishTime - $startTime; |
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} |
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$tags = $span->getTags(); |
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$this->extractKind($tags, $data); |
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$this->extractEndpoint(EXT::LOCAL_ENDPOINT, 'localEndpoint', $tags, $data); |
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$this->extractEndpoint(EXT::REMOTE_ENDPOINT, 'remoteEndpoint', $tags, $data); |
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array_walk($tags, function (string &$v) { |
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// values type convert .. do nothing |
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}); |
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$tags && $data['tags'] = $tags; |
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if ($logs = $span->getLogs()) { |
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foreach ($logs as $log) { |
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list($timestamp, $fields) = $log; |
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$items = []; |
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array_walk($fields, function ($v, $k) use (&$items) { |
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$items[] = "{$k}={$v}"; |
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}); |
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$data['annotations'][] = [ |
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'timestamp' => $timestamp, |
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'value' => implode(' ', $items), |
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]; |
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} |
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} |
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return json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE); |
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} |
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/** |
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* @param array $tags |
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* @param array $data |
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*/ |
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private function extractKind(array &$tags, array &$data) : void |
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{ |
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if (isset($tags[TAG::SPAN_KIND])) { |
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$data['kind'] = strtoupper($tags[TAG::SPAN_KIND]); |
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unset($tags[TAG::SPAN_KIND]); |
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} |
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} |
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/** |
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* @param string $from |
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* @param string $to |
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* @param array $tags |
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* @param array $data |
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*/ |
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private function extractEndpoint(string $from, string $to, array &$tags, array &$data) : void |
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{ |
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if (isset($tags[$from])) { |
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/** |
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* @var Endpoint $ep |
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*/ |
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$ep = $tags[$from]; |
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$data[$to] = [ |
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'serviceName' => $ep->service(), |
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'ipv4' => $ep->ipv4(), |
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'port' => $ep->port(), |
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]; |
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unset($tags[$from]); |
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} |
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} |
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} |
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carno-php /
traced
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.