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Support OpenTelemetry sampling on az.namespace attribute #42548

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Support OpenTelemetry sampling on az.namespace attribute #42548

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17 changes: 9 additions & 8 deletions ...opentelemetry/src/main/java/com/azure/core/tracing/opentelemetry/OpenTelemetryTracer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@
import java.util.function.BiConsumer;
import java.util.function.Function;

import static java.util.Collections.singletonMap;

/**
* Basic tracing implementation class for use with REST and AMQP Service Clients to create {@link Span} and in-process
* context propagation. Singleton OpenTelemetry tracer capable of starting and exporting spans.
Expand Down Expand Up @@ -150,16 +152,15 @@ public Context start(String spanName, StartSpanOptions options, Context context)
spanBuilder.setStartTimestamp(options.getStartTimestamp());
}

Span span = spanBuilder.startSpan();
if (span.isRecording()) {
// If span is sampled in, add additional attributes

String tracingNamespace = getAzNamespace(context);
if (tracingNamespace != null) {
OpenTelemetryUtils.addAttribute(span, AZ_TRACING_NAMESPACE_KEY, tracingNamespace);
}
String tracingNamespace = getAzNamespace(context);
if (tracingNamespace != null) {
Attributes attributes
= OpenTelemetryUtils.convert(singletonMap(AZ_TRACING_NAMESPACE_KEY, tracingNamespace));
spanBuilder.setAllAttributes(attributes);
}

Span span = spanBuilder.startSpan();

return context.addData(PARENT_TRACE_CONTEXT_KEY,
(traceContext != null ? traceContext : io.opentelemetry.context.Context.current()).with(span));
}
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