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<?php
declare(strict_types=1);
namespace OpenTelemetry\Contrib\Otlp;
use OpenTelemetry\API\Trace as API;
use Opentelemetry\Proto\Collector\Trace\V1\ExportTraceServiceRequest;
use Opentelemetry\Proto\Common\V1\InstrumentationScope;
use Opentelemetry\Proto\Common\V1\KeyValue;
use Opentelemetry\Proto\Resource\V1\Resource as Resource_;
use Opentelemetry\Proto\Trace\V1\ResourceSpans;
use Opentelemetry\Proto\Trace\V1\ScopeSpans;
use Opentelemetry\Proto\Trace\V1\Span;
use Opentelemetry\Proto\Trace\V1\Span\Event;
use Opentelemetry\Proto\Trace\V1\Span\Link;
use Opentelemetry\Proto\Trace\V1\Span\SpanKind;
use Opentelemetry\Proto\Trace\V1\Status;
use Opentelemetry\Proto\Trace\V1\Status\StatusCode;
use OpenTelemetry\SDK\Common\Attribute\AttributesInterface;
use OpenTelemetry\SDK\Common\Instrumentation\InstrumentationScopeInterface;
use OpenTelemetry\SDK\Resource\ResourceInfo;
use OpenTelemetry\SDK\Trace\SpanDataInterface;
use function serialize;
use function spl_object_id;
final class SpanConverter
{
private ProtobufSerializer $serializer;
public function __construct(?ProtobufSerializer $serializer = null)
{
$this->serializer = $serializer ?? ProtobufSerializer::getDefault();
}
public function convert(iterable $spans): ExportTraceServiceRequest
{
$pExportTraceServiceRequest = new ExportTraceServiceRequest();
$resourceSpans = [];
$resourceCache = [];
$scopeSpans = [];
$scopeCache = [];
foreach ($spans as $span) {
$resource = $span->getResource();
$instrumentationScope = $span->getInstrumentationScope();
$resourceId = $resourceCache[spl_object_id($resource)] ??= serialize([
$resource->getSchemaUrl(),
$resource->getAttributes()->toArray(),
$resource->getAttributes()->getDroppedAttributesCount(),
]);
$instrumentationScopeId = $scopeCache[spl_object_id($instrumentationScope)] ??= serialize([
$instrumentationScope->getName(),
$instrumentationScope->getVersion(),
$instrumentationScope->getSchemaUrl(),
$instrumentationScope->getAttributes()->toArray(),
$instrumentationScope->getAttributes()->getDroppedAttributesCount(),
]);
if (($pResourceSpans = $resourceSpans[$resourceId] ?? null) === null) {
/** @psalm-suppress InvalidArgument */
$pExportTraceServiceRequest->getResourceSpans()[]
= $resourceSpans[$resourceId]
= $pResourceSpans
= $this->convertResourceSpans($resource);
}
if (($pScopeSpans = $scopeSpans[$resourceId][$instrumentationScopeId] ?? null) === null) {
/** @psalm-suppress InvalidArgument */
$pResourceSpans->getScopeSpans()[]
= $scopeSpans[$resourceId][$instrumentationScopeId]
= $pScopeSpans
= $this->convertScopeSpans($instrumentationScope);
}
/** @psalm-suppress InvalidArgument */
$pScopeSpans->getSpans()[] = $this->convertSpan($span);
}
return $pExportTraceServiceRequest;
}
private function convertResourceSpans(ResourceInfo $resource): ResourceSpans
{
$pResourceSpans = new ResourceSpans();
$pResource = new Resource_();
$this->setAttributes($pResource, $resource->getAttributes());
$pResourceSpans->setResource($pResource);
$pResourceSpans->setSchemaUrl((string) $resource->getSchemaUrl());
return $pResourceSpans;
}
private function convertScopeSpans(InstrumentationScopeInterface $instrumentationScope): ScopeSpans
{
$pScopeSpans = new ScopeSpans();
$pInstrumentationScope = new InstrumentationScope();
$pInstrumentationScope->setName($instrumentationScope->getName());
$pInstrumentationScope->setVersion((string) $instrumentationScope->getVersion());
$this->setAttributes($pInstrumentationScope, $instrumentationScope->getAttributes());
$pScopeSpans->setScope($pInstrumentationScope);
$pScopeSpans->setSchemaUrl((string) $instrumentationScope->getSchemaUrl());
return $pScopeSpans;
}
/**
* @param Resource_|Span|Event|Link|InstrumentationScope $pElement
*/
private function setAttributes($pElement, AttributesInterface $attributes): void
{
foreach ($attributes as $key => $value) {
/** @psalm-suppress InvalidArgument */
$pElement->getAttributes()[] = (new KeyValue())
->setKey($key)
->setValue(AttributesConverter::convertAnyValue($value));
}
$pElement->setDroppedAttributesCount($attributes->getDroppedAttributesCount());
}
private function convertSpanKind(int $kind): int
{
switch ($kind) {
case API\SpanKind::KIND_INTERNAL: return SpanKind::SPAN_KIND_INTERNAL;
case API\SpanKind::KIND_CLIENT: return SpanKind::SPAN_KIND_CLIENT;
case API\SpanKind::KIND_SERVER: return SpanKind::SPAN_KIND_SERVER;
case API\SpanKind::KIND_PRODUCER: return SpanKind::SPAN_KIND_PRODUCER;
case API\SpanKind::KIND_CONSUMER: return SpanKind::SPAN_KIND_CONSUMER;
}
return SpanKind::SPAN_KIND_UNSPECIFIED;
}
private function convertStatusCode(string $status): int
{
switch ($status) {
case API\StatusCode::STATUS_UNSET: return StatusCode::STATUS_CODE_UNSET;
case API\StatusCode::STATUS_OK: return StatusCode::STATUS_CODE_OK;
case API\StatusCode::STATUS_ERROR: return StatusCode::STATUS_CODE_ERROR;
}
return StatusCode::STATUS_CODE_UNSET;
}
private function convertSpan(SpanDataInterface $span): Span
{
$pSpan = new Span();
$pSpan->setTraceId($this->serializer->serializeTraceId($span->getContext()->getTraceIdBinary()));
$pSpan->setSpanId($this->serializer->serializeSpanId($span->getContext()->getSpanIdBinary()));
$pSpan->setTraceState((string) $span->getContext()->getTraceState());
if ($span->getParentContext()->isValid()) {
$pSpan->setParentSpanId($this->serializer->serializeSpanId($span->getParentContext()->getSpanIdBinary()));
}
$pSpan->setName($span->getName());
$pSpan->setKind($this->convertSpanKind($span->getKind()));
$pSpan->setStartTimeUnixNano($span->getStartEpochNanos());
$pSpan->setEndTimeUnixNano($span->getEndEpochNanos());
$this->setAttributes($pSpan, $span->getAttributes());
foreach ($span->getEvents() as $event) {
/** @psalm-suppress InvalidArgument */
$pSpan->getEvents()[] = $pEvent = new Event();
$pEvent->setTimeUnixNano($event->getEpochNanos());
$pEvent->setName($event->getName());
$this->setAttributes($pEvent, $event->getAttributes());
}
$pSpan->setDroppedEventsCount($span->getTotalDroppedEvents());
foreach ($span->getLinks() as $link) {
/** @psalm-suppress InvalidArgument */
$pSpan->getLinks()[] = $pLink = new Link();
$pLink->setTraceId($this->serializer->serializeTraceId($link->getSpanContext()->getTraceIdBinary()));
$pLink->setSpanId($this->serializer->serializeSpanId($link->getSpanContext()->getSpanIdBinary()));
$pLink->setTraceState((string) $link->getSpanContext()->getTraceState());
$this->setAttributes($pLink, $link->getAttributes());
}
$pSpan->setDroppedLinksCount($span->getTotalDroppedLinks());
$pStatus = new Status();
$pStatus->setMessage($span->getStatus()->getDescription());
$pStatus->setCode($this->convertStatusCode($span->getStatus()->getCode()));
$pSpan->setStatus($pStatus);
return $pSpan;
}
}
|
