metrics: support synchronous gauge - Githubissues

typelevel / otel4s

An OpenTelemetry library for Scala based on Cats-Effect

https://typelevel.org/otel4s

Apache License 2.0

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metrics: support synchronous gauge #677

Closed iRevive closed 4 months ago

iRevive commented 4 months ago

Synchronous gauge is stable since 1.33.0 - https://github.com/open-telemetry/opentelemetry-specification/pull/4019.

Related changes:

https://github.com/open-telemetry/opentelemetry-java/pull/6419

~oteljava waits for the 1.38.0 release.~

The changeset:

[x] core-metrics: add Gauge, GaugeMacro
[x] sdk-metrics: add SdkGauge
[x] sdk-metrics: make LastValueAggregator record exemplars
[x] oteljava-metrics: add GaugeBuilderImpl