This commit adds a DataBuffer Encoder and Decoder, and uses it in
the annotation-based processing model.
Note that these codecs are not used in the functional processing model,
since the BodyInserter/BodyExtractor already have methods for
writing/reading DataBuffers.
Issue: SPR-15148
The recent refactoring lead to
java.lang.NoClassDefFoundError: io/reactivex/Completable
where only RxJava 1 is in the classpath. Most likely due to the
lack of prefix in Completable::complete with rx package to avoid
the RxJava 2 reference.
Simplify getAdapterFrom/To into a single getAdapter method that looks
for an exact match by type first and then isAssignableFrom.
Also expose shortcut methods in ReactiveAdapter to minimize the need
for access to the ReactiveTypeDescriptor.
Issue: SPR-14902
The ReactiveAdapterRegistry now detects the presence of Reactor. In
practice Reactor is required for the Spring Framework reactive support
and it is expected to be present.
The registry however is now capable of being neutral if Reactor is not
present on the classpath for example where other Spring projects may
not have the same assumptions about Reactor's presence.
Issue: SPR-14902
Collapse ReactiveAdapter hierarchy into a single class that simply
delegates to functions for converting to/from a Publisher.
A private ReactorAdapter extension automaticlaly wraps adapted, "raw"
Publisher's as Flux or Mono depending on the semantics of the target
reactive type.
Issue: SPR-14902
This commit polishes Kotlin nullable support by reusing
MethodParameter#isOptional() instead of adding a new
MethodParameter#isNullable() method, adds
Kotlin tests and introduces Spring Web Reactive
support.
Issue: SPR-14165
Where `isOptional` is used, also check for `isNullable` i.e.
values are not considered required if they are Kotlin nullables:
- spring-messaging: named value method arguments
- spring-web: named value method arguments
- spring-webmvc: request parts
This means that Kotlin client code no longer has to explicity specify
"required=false" for Kotlin nullables -- this information is inferred
automatically by the framework.
Issue: SPR-14165
Arjen Poutsma
Juergen Hoeller
Mark Hobson
Sam Brannen
Christoph Dreis
Rossen Stoyanchev
Sebastien Deleuze
Raman Gupta