Prior to this commit, MVC function endpoints would allow Server Sent
Event responses through `ServerResponse.sse()`. While this covers a
common use case for streaming responses, other technologies would
benefit from a "low-level", unopinionated streaming support.
This commit introduces a new `BodyBuilder.stream()` methods that enables
such use cases. Developers are in charge of setting the relevant HTTP
response headers beforehand, and then can write to the response as raw
`String`, `byte[]` or using complex objects and the configured message
converters for serialization.
Because each streaming protocol has different message separator
semantics, it is also the developers' responsibility to flush buffered
content to the network once a message has been fully written.
Closes gh-32710
This aligns HttpHeaders with other places like ServletWebRequest and
DefaultWebExchange where an ETag is accepted as input.
It also allows us to remove quoting from places that delegate to
HttpHeaders#setETag since it now does that internally.
Closes gh-33412
Update checks whether quoting is needed to be more complete
than what we've used so far, making sure the there is both
opening and closing quotes independent of each other.
See gh-33412
Prior to this commit, `ResponseBodyEmitter` woud accept a single
`Runnable` callback on each of its `onTimeout`, `onError` or
`onCompletion` methods. This would limit the developers' ability to
register multiple sets of callbacks: one for managing the publication of
streaming values, another one for managing other concerns like
keep-alive signals to maintain the connection.
This commit now allows multiple calls to `onTimeout`, `onError` and
`onCompletion` and will register all callbacks accordingly.
Closes gh-33356
On the client side, supports `name=value` pairs. Placeholders in values
are resolved by the `embeddedValueResolver`.
On the server side, additionally supports `name` and `!name` syntax.
Closes gh-33309
Based on feedback from htmx-spring-boot. It's more generally useful
to process those from within DefaultFragmentsRendering rather than
in ModelAndViewMethodReturnValueHandler. That way a custom
return value handler can create a FragmentsRendering as well and
get the same result.
See gh-33194
This commit documents `ControllerAdviceBean` as internal usage, as it is
not meant for application to manually create controller advice bean
instances.
This also refactors the existing partial implementation of the support
for creating controller advice beans "programmatically".
Closes gh-32776
This change tracks the multipart nature of the async request
within the `DispatcherServlet`, in the `WebAsyncManager`.
This allows for the second ASYNC dispatch to recognize the
multipart aspect and clean up the associated resources.
Closes gh-33161
SmartHttpMessageConverter is similar to GenericHttpMessageConverter,
but more consistent with WebFlux Encoder and Decoder contracts, with
the following differences:
- A ResolvableType parameter is used instead of the Type one
- The MethodParameter can be retrieved via the ResolvableType source
- No contextClass parameter
- `@Nullable Map<String, Object> hints` additional parameter for write
and read methods
This commit also refines RestTemplate#canReadResponse in order to use
the most specific converter contract when possible.
Closes gh-33118
According to the official FreeMarker documentation, Spring's
FreeMarkerView implementations should be configuring the
output_encoding for template rendering.
To address that, this commit modifies the FreeMarkerView
implementations in Web MVC and WebFlux to explicitly set the
output_encoding for template rendering.
See https://freemarker.apache.org/docs/pgui_misc_charset.html#autoid_53
See gh-33071
Closes gh-33106
