Simplify HTTP client configuration properties by sharing common
settings for both blocking and reactive clients.
The `ClientHttpRequestFactorySettings` and `ClientHttpConnectorSettings`
have been merged to a single `HttpClientSettings` class. Properties
to configure common settings are available under:
`spring.http.clients`
Blocking and reactive settings have been moved to
`spring.http.clients.blocking` and `spring.http.clients.reactive`. With
currently only the factory/connector being configurable.
HTTP Service Client properties have also been rationalized under a
`spring.http.serviceclient.<group-name>`. Support for properties that
apply to all service clients and all Rest/Web Clients have been removed.
Support for `ApiVerionInserter` beans has also been removed in favor of
configuring the service group or builders directly.
Closes gh-47398
Refactor `PropertyMapper` so that it no longer calls adapter or
predicate methods by default when the source value is `null`. This
effectively makes all default calls the same as using
`alwaysWhenNotNull` in the previous generation of the code.
For the limited times when you do need to deal with `null` values, the
new `always()` method can be used.
For example,
map.from(source::method).to(destination::method);
Will not call `destination.method(...)` if `source.method()` returns
`null`.
Where as:
map.from(source::method).always().to(destination::method);
Will call `destination.method(null)` if `source.method()` returns
`null`.
This update provides clearer semantics for the API and allows for better
JSpecify nullability annotations. It has also simplified much of our
existing property mapper code.
Closes gh-47024
Co-authored-by: Moritz Halbritter <moritz.halbritter@broadcom.com>
Moritz Halbritter
Phillip Webb