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<?php
namespace Jaeger\Mapper;
use Jaeger\Span;
use Jaeger\Thrift\Agent\Zipkin\AnnotationType;
use Jaeger\Thrift\Agent\Zipkin\BinaryAnnotation;
use Jaeger\Thrift\Log;
use Jaeger\Thrift\Span as JaegerThriftSpan;
use Jaeger\Thrift\Tag;
use Jaeger\Thrift\TagType;
use const OpenTracing\Tags\COMPONENT;
use const OpenTracing\Tags\PEER_HOST_IPV4;
use const OpenTracing\Tags\PEER_PORT;
use const OpenTracing\Tags\PEER_SERVICE;
use const OpenTracing\Tags\SPAN_KIND;
class SpanToJaegerMapper
{
private $specialSpanTags = ["jaeger.hostname", "jaeger.version"];
private $processTagsPrefix = "process.";
/**
* @return string[]
*/
public function getSpecialSpanTags(): array
{
return $this->specialSpanTags;
}
/**
* @return string
*/
public function getProcessTagsPrefix(): string
{
return $this->processTagsPrefix;
}
public function mapSpanToJaeger(Span $span) : JaegerThriftSpan
{
$timestamp = $span->getStartTime();
$duration = $span->getEndTime() - $span->getStartTime();
/** @var Tag[] $tags */
$tags = [];
$tags[] = new Tag([
"key" => COMPONENT,
"vType" => TagType::STRING,
"vStr" => $span->getComponent() ?? $span->getTracer()->getServiceName(),
]);
// Handle special tags
$peerService = $span->peer['service_name'] ?? null;
if ($peerService !== null) {
$tags[] = new Tag([
"key" => PEER_SERVICE,
"vType" => TagType::STRING,
"vStr" => $peerService,
]);
}
$peerHostIpv4 = $span->peer['ipv4'] ?? null;
if ($peerHostIpv4 !== null) {
$tags[] = new Tag([
"key" => PEER_HOST_IPV4,
"vType" => TagType::STRING,
"vStr" => $peerHostIpv4,
]);
}
$peerPort = $span->peer['port'] ?? null;
if ($peerPort !== null) {
$tags[] = new Tag([
"key" => PEER_PORT,
"vType" => TagType::LONG,
"vLong" => $peerPort,
]);
}
$spanKind = $span->getKind();
if ($spanKind !== null) {
$tags[] = new Tag([
"key" => SPAN_KIND,
"vType" => TagType::STRING,
"vStr" => $spanKind,
]);
}
/** @var BinaryAnnotation[] $binaryAnnotationTags */
$binaryAnnotationTags = $span->getTags();
foreach ($binaryAnnotationTags as $binaryAnnotationTag) {
if (in_array($binaryAnnotationTag->key, $this->specialSpanTags, true)) {
continue ;
}
if (strpos($binaryAnnotationTag->key, $this->processTagsPrefix) === 0) {
continue;
}
$type = "";
$vkey = "";
switch ($binaryAnnotationTag->annotation_type) {
case AnnotationType::BOOL:
$type = TagType::BOOL;
$vkey = "vBool";
break;
case AnnotationType::BYTES:
$type = TagType::BINARY;
$vkey = "vBinary";
break;
case AnnotationType::DOUBLE:
$type = TagType::DOUBLE;
$vkey = "vDouble";
break;
case AnnotationType::I16:
case AnnotationType::I32:
case AnnotationType::I64:
$type = TagType::LONG;
$vkey = "vLong";
break;
default:
$type = TagType::STRING;
$vkey = "vStr";
}
$tags[] = new Tag([
"key" => $binaryAnnotationTag->key,
"vType" => $type,
$vkey => $binaryAnnotationTag->value,
]);
}
/** @var Log[] $logs */
$logs = [];
$spanLogs = $span->getLogs();
foreach ($spanLogs as $spanLog) {
/** @var Tag $fields */
$fields = [];
if (!empty($spanLog["fields"])) {
$fields[] = new Tag([
"key" => "event",
"vType" => TagType::STRING,
"vStr" => json_encode($spanLog["fields"])
]);
}
$logs[] = new Log([
"timestamp" => $spanLog["timestamp"],
"fields" => $fields
]);
}
return new JaegerThriftSpan([
"traceIdLow" => (int)$span->getContext()->getTraceId(),
"traceIdHigh" => 0,
"spanId" => (int)$span->getContext()->getSpanId(),
"parentSpanId" => (int)$span->getContext()->getParentId(),
"operationName" => $span->getOperationName(),
"startTime" => $timestamp,
"duration" => $duration,
"flags" => (int)$span->isDebug(),
"tags" => $tags,
"logs" => $logs
]);
}
}
|
