Prior to this commit, the required runtime dependencies were checked
via reflection each time an attempt was made to instantiate
MicrometerObservationRegistryTestExecutionListener.
Since it's sufficient to check for the presence of required runtime
dependencies only once, this commit caches the results of the
dependency checks in a static field.
This commit also introduces automated tests for the runtime dependency
checks in MicrometerObservationRegistryTestExecutionListener.
See gh-30747
This commit adds support for WildcardType bounds resolution,
commonly seen in Kotlin due to declaration-site variance,
but also possible in Java even if less common.
Closes gh-22313
- Removed duplicate Client in types names.
- Removed buffering in favor of OutputStream to
Flow.Publisher<ByteBuffer> bridge.
- Made request and types package private.
- Various other small improvements.
Closes gh-30478
This commit updates the `ScheduledTaskObservationDocumentation` to
better align the contributed KeyValues with OpenTelemetry conventions
for observations of code executions.
Instead of a "target.type" key with the bean class simple name, this
is now contributing the canonical class name of the bean under the
"code.namespace" key.
The "method.name" key is renamed to "code.function" and its values
remain unchanged.
Closes gh-30721
Prior to this commit, dependency checks in the static initialization
block for MicrometerObservationRegistryTestExecutionListener resulted
in an ExceptionInInitializerError which led to verbose logging in
TestContextFailureHandler.
This commit improves the logging for missing dependencies in
MicrometerObservationRegistryTestExecutionListener by moving the
dependency checks to the constructor and by throwing a
NoClassDefFoundError instead of an IllegalStateException. This allows
TestContextFailureHandler to log a concise DEBUG message denoting that
the listener is being skipped due to missing dependencies.
This commit also now checks for the presence of
io.micrometer.context.ThreadLocalAccessor in addition to
io.micrometer.observation.contextpropagation.ObservationThreadLocalAccessor.
Furthermore, this commit now explicitly mentions the need for
io.micrometer:context-propagation in the error message.
The following demonstrate the generated DEBUB message when
ObservationThreadLocalAccessor and ThreadLocalAccessor are missing,
respectively.
Skipping candidate TestExecutionListener [org.springframework.test.context.observation.MicrometerObservationRegistryTestExecutionListener] due to a missing dependency. Specify custom TestExecutionListener classes or make the default TestExecutionListener classes and their required dependencies available. Offending class: io.micrometer.observation.contextpropagation.ObservationThreadLocalAccessor. MicrometerObservationRegistryTestExecutionListener requires io.micrometer:micrometer-observation:1.10.8 or higher and io.micrometer:context-propagation:1.0.3 or higher.
Skipping candidate TestExecutionListener [org.springframework.test.context.observation.MicrometerObservationRegistryTestExecutionListener] due to a missing dependency. Specify custom TestExecutionListener classes or make the default TestExecutionListener classes and their required dependencies available. Offending class: io.micrometer.context.ThreadLocalAccessor. MicrometerObservationRegistryTestExecutionListener requires io.micrometer:micrometer-observation:1.10.8 or higher and io.micrometer:context-propagation:1.0.3 or higher.
Closes gh-30747