Prior to this commit, we would advise developers, as migration path from
Spring Boot 2.0-x metrics, to create `GlobalObservationConvention` beans
for the observations they want to customize (observation name or key
values).
`GlobalObservationConvention` are currently applied **in addition** to
the chosen convention in some cases, so this does not work well with
this migration path.
Instead, instrumentations always provide a default convention but also a
way to configure a custom convention for their observations. Spring Boot
should inject custom convention beans in the relevant
auto-configurations.
Fixes gh-33285
Relocate `ApplicationTags` `@Bean` method from
`WavefrontTracingAutoConfiguration` to `WavefrontAutoConfiguration`
since it is now shared between tracing and metrics.
The `application-name`, `service-name`, `cluster-name` and `shard-name`
have also been relocated from `management.wavefront.tracing` to
`management.wavefront`.
Fixes gh-33244
Update `application-name` and `service-name` `management.wavefront`
properties to align with Spring Boot 2.x support. The properties now
use the wavefront terminology where `application` refers to an a
collection of (micro)`services`.
This commit also adds `cluster-name` and `shard-name` properties that
can be used to add additional items to the `ApplicationTags`.
See gh-32844
Update `ManagementContextFactory` implementations to create an
appropriate `Environment` type and to apply the `ConversionService`
from the parent context.
Prior to this commit, the management context `Environment` would not
be able to convert values from a `configtree:` source due to a missing
converter.
Fixes gh-32941
Returning a private class from a package-private method causes the
AOT-generated source files to fail to compile as the private class is
not visible.
Closes gh-33106
Update `MeterRegistryPostProcessor` to configure `MeterRegistry` beans
in two distinct sweeps. The first sweep applies customizers and filters
as the `MeterRegistry` bean is initialized, the second sweep applies
`MeterBinder` beans once all singletons have been instantiated.
Prior to this commit, it was not possible for a `MeterBinder` bean to
directly or indirectly use a `MeterRegistry`. It was also possible for
bound meters to cause a deadlock during refresh processing if those
meters could be updated on a thread other than main, such as GC
notifications.
Fixes gh-30636
Fixes gh-33070
Update types returned from endpoints to implement the
`OperationResponseBody` interface. This ensures that they will be
serialized using the isolated actuator `ObjectMapper`.
See gh-20291
Add `OperationResponseBody` tagging interface that can be used
to trigger the use of an isolated ObjectMapper specifically for
actuator responses.
The isolated mapper is provided by an `EndpointObjectMapper`
bean which is auto-configured unless specifically disabled
by the user.
WebMVC, WebFlux and Jersey integrations have been updated
to provide a link between the `OperationResponseBody` type
and the endpoint `ObjectMapper`.
See gh-20291
