This commit ensures that the RestClient uses the
IntrospectingClientHttpResponse to verify whether the response has a
body, and return null if it does not.
See gh-12671
Closes gh-31719
Prior to this commit, regressions were introduced with gh-31417:
1. the observation keyvalues would be inconsistent with the HTTP response
2. the observation scope would not cover all controller handlers, causing
traceIds to be missing
The first issue is caused by the fact that in case of error signals, the
observation was stopped before the response was fully committed, which
means further processing could happen and update the response status.
This commit delays the stop event until the response is committed in
case of errors.
The second problem is caused by the change from a `contextWrite`
operator to using the `tap` operator with a `SignalListener`. The
observation was started in the `doOnSubscription` callback, which is too
late in some cases. If the WebFlux controller handler is synchronous
non-blocking, the execution of the handler is performed before the
subscription happens. This means that for those handlers, the
observation was not started, even if the current observation was
present in the reactor context. This commit changes the
`doOnSubscription` to `doFirst` to ensure that the observation is
started at the right time.
Fixes gh-31703
Fixes gh-31706
Prior to this commit, the Jackson 2.x encoders, in case of encoding a
stream of data, would first release the `ByteArrayBuilder` and then the
`JsonGenerator`. This order is inconsistent with the single value
variant (see `o.s.h.codec.json.AbstractJackson2Encoder#encodeValue`) and
invalid since the `JsonGenerator` uses internally the
`ByteArrayBuilder`.
In case of a CSV Encoder, the codec can buffer data to write the column
names of the CSV file. Writing an empty Flux with this Encoder would not
fail but still log a NullPointerException ignored by the reactive
pipeline.
This commit fixes the order and avoid such issues at runtime.
Fixes gh-30493
This commit fixes a regression introduced by gh-21139
via the usage of Kotlin reflection to invoke HTTP
handler methods. It ensures that kotlin.Unit is treated
as void by returning null.
It also polishes CoroutinesUtils to have a consistent
handling compared to the regular case, and adds related
tests to prevent future regressions.
Closes gh-31648
This commit introduces a ConvertibleClientHttpResponse type that
extends ClientHttpResponse, and that can convert the body to a desired
type. Before this commit, it was not easy to use the configured HTTP
message converters in combination with RestClient::exchange.
Closes gh-31597
This commit ensures that the StreamingHttpOutputMessage.Body.repeatable
flag is set in message converters for bodies that can be written
repeatedly.
Closes gh-31516
See gh-31449
This commit introduces the maxParts and maxPartSize properties to
PartEventHttpMessageReader, which can be used to limit the amount of
parts, and maximum part size respectively.
Closes gh-31343
This commit adds a test and polishing for a change in
AbstractNamedValueMethodArgumentResolver erroneously committed
with (unrelated) commit e57b942b.
If an argument becomes null after conversion and a default value is
applied, that default value should also pass through conversion.
Closes gh-31336
This commit re-generates the protobuf Java classes with a recent version
of the protoc binary and adds JMH benchmarks that exercise the message
converter for both the reading and writing cases.
See gh-29496
Prior to this commit, a cancelled exchange would always result in an
`"status":"UNKNOWN"` KeyValue. This only applied to reactive variants,
as cancelled exchanges are not currently detected for Servlet
implementations.
In some cases, exchanges can be cancelled by clients before they are
completed, but the response was actually received by the client. The
response status information has been set by the application and the
response has been committed. For those cases, we shouldn't assume an
"UNKNOWN" value.
This commit assumes that committed responses have a response status set
by the application and that the observations should reflect that. From
now on, we only assume an "UNKNOWN" status if the response has not been
commited.
Fixes gh-31388
This commit adds a constructor with externally managed
Reactor Netty resources to ReactorNettyClientRequestFactory
and makes it lifecycle-aware in order to support Project CRaC.
Closes gh-31280
Closes gh-31281
This commit replaces uses of onErrorResume() with
- onErrorMap() in places where onErrorResume() is just used to map to a
different exception.
- onErrorComplete() where onErrorResume() just maps to Mono.empty().
- onErrorReturn() where onErrorResum() just maps to Mono.just().
Closes gh-31352
This commit ensures that both `ObservationRegsitry` and
`ServerRequestObservationConvention` beans are automatically detected in
the application context if they are unique. This aligns with the
existing behavior for all other builder methods.
Closes gh-31205
With this commit, ReactorClientHttpConnector now implements
SmartLifecycle which optionally allows recreating the HttpClient
after ReactorResourceFactory has been updated.
Closes gh-31180
With this commit, ReactorResourceFactory now implements
Lifecycle which allows supporting JVM Checkpoint Restore
in Spring Boot with Reactor Netty server, and helps
to support Reactor Netty client as well.
Closes gh-31178