refactor(core)!: Add observe layer as building block #5064
Merged
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Which issue does this PR close?
Related to #5049
Rationale for this change
What changes are included in this PR?
Add a new mod called
opendal::layers::observe
. In which we will provide:observe::MetricsIntercept
: A trait that users can implement metrics intercept.observe::MetricsLayer
: A layer that based onMetricsIntercept
.Based on
observe
mod, all our existing metrics related crates can implement:MetricsLayer = observe::MetricsLayer<MetricsInterceptor>
PrometheusClientLayer = observe::MetricsLayer<PrometheusClientInterceptor>
PrometheusLayer = observe::MetricsLayer<PrometheusInterceptor>
All of them will share the exactly same behavior. Users only need to configure the
Interceptor
directly.Are there any user-facing changes?
API Breaking Changes