This commit adds the ability to serve Resources (static files) through a
RouterFunction. Two methods have been added to RouterFunctions: one that
exposes a given directory given a path pattern, and a generic method
that requires a lookup function.
Issue: SPR-14913
In general, web.util is supposed to remain lowest-level, not depending on any other web.* package. Since web.client also has a support package, a corresponding web.server.support package seemed appropriate for a helper class depending on ServerWebExchange in web.server itself.
Main differences with the Spring MVC original implementation:
- Default redirect HTTP code is 303 See Other since we can assume
all HTTP clients support HTTP 1.1 in 2016
- No more http10Compatible property, use statusCode instead
- By default the redirect is relative to the context path
- A builder allow to set various properties if needed
- In UrlBasedViewResolver, a Function<String, RedirectView>
redirectViewProvider property allows to customize RedirectView
instances in a flexible way
Issue: SPR-14534
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
Multi-value async attributes like Flux and Observable in the model
are treated with Collection semantics and resolved to Mono<List<?>>
prior to rendering.
When resolved through the `GzipResourceResolver`, CSS files can be
resolved as their pre-gzipped variant, if a ".gz" file is present in the
configured resource locations.
Such resources are gzipped and thus should not be transformed by
`CssLinkResourceTransformer`s, since rewriting those would need to
uncompress/transform/recompress. This would lead to poorer performances
than resolving plain resources and delegating compression to the
container.
This commit checks for `GzippedResource` instances in
`CssLinkResourceTransformer` and avoids processing them.
Issue: SPR-14773
If the body class is not resolvable from the return type and there is
a body instance we now fall back on the class of the body instance.
Issue: SPR-14877
Prior to this commit, the wrong `HandlerResultHandler` could be
resolved when handling exceptions; this could happen only if the
original handler and exception handler had different signatures:
```
Publisher<String> originalHandler() { ... }
@ExceptionHandler(MyCustomException.class)
ResponseEntity<Mono<String>> handleException() { ... }
```
In that case, the `ResponseBodyResultHandler` would be used when
handling exceptions instead of the `ResponseEntityResultHandler`.
This commit ensures that the `HandlerResult` returned by the exception
handler is used to resolve the `HandlerResultHandler`. The latter will
process the result and use it to write to the HTTP response.
Issue: SPR-14876
This commit adds support for `@ResponseStatus` annotations on reactive
controller methods. `HandlerResultHandler`s implementations now
set the status on the `ServerWebExchange`, if and only if the
invocation of the controller method succeeded.
Issue: SPR-14830
- ScriptedSubscriber has been renamed to Verifier
- The Publisher is passed to create() instead of verify()
- No more need to specify the generic type explicitly
- Version is now sync with reactor-core
Issue: SPR-14800
This commit adds support for detecting the target WebHandler along with
WebFilters, WebExceptionHandlers, and other spring-web reactive
strategies in an ApplicationContext.
WebReactiveConfigurationSupport has @Bean factory methods for
DispatcherHandler and ResponseStatusExceptionHandler.
WebHttpHandlerBuilder has a static factory method that initializes the
builder from an ApplicationContext. This method is also used in the
DispatcherHandler#toHttpHandler(ApplicationContext) shortcut method.
Issue: SPR-14837
HandlerMethodArgumentResolver is a non-blocking contract, however only
implementations that read the request body require blocking.
This commit introduces SyncMethodArgumentResolver as an extension of
the non-blocking contract that allows synchronous implementations to
use synchronous argument resolution.
There is also a SyncInvocableHandlerMethod extension that uses only
sync argument resolvers and allows a synchronous invocation.
Issue: SPR-14543
Reactor recently added the `ScriptedSubscriber` in its new
`reactor-addons` module. This `Subscriber` revissits the previous
`TestSubscriber` with many improvements, including:
* scripting each expectation
* builder API that guides you until the final verification step
* virtual time support
This commit refactor all existing tests to use this new
infrastructure and removed the `TestSubscriber` implementation.
Issue: SPR-14800
This commit removes factory methods for `RequestMappingHandlerMapping`
and `RequestMappingHandlerAdapter` from `WebReactiveConfigurer`.
`WebReactiveConfigurer` should promote only common customizations;
those factory methods should be overridden when extending
`WebReactiveConfigurationSupport`, in advanced configuration scenarios.
This commit introduces support for running multiple HttpHandler's under
distinct context paths which effectively allows running multiple
applications on the same server. ContextPathIntegrationTests contains
an example of two applications with different context paths.
In order to support this the HttpHandler adapters for all supported
runtimes now have a common base class HttpHandlerAdapterSupport
which has two constructor choices -- one with a single HttpHandler and
another with a Map<String, HttpHandler>.
Note that in addition to the contextPath under which an HttpHandler is
configured there may also be a "native" contextPath under which the
native runtime adapter is configured (e.g. Servlet containers). In such
cases the contextPath is a combination of the native contextPath and
the contextPath assigned to the HttpHandler. See for example
HttpHandlerAdapterSupportTests.
Issue: SPR-14726
This commit adds a bodyToMono and bodyToFlux convenience method to
ClientResponse/ServerRequest, similar to the body(Publisher) method that
is on ClientRequest/ServerResponse.
This commit introduces the following changes to web.reactive.function:
- Added RouterFunction.andRoute(), a combination of RouterFunction.and()
with RouterFunctions.route()
- ServerRequest.pathVariable() returns String instead of
Optional<String>. An exception is thrown if the variable is not present.
- Added HandlerFilterFunction.andThen and HandlerFilterFunction.apply()
This commit removes the usage of Reactor adapters (about to
be moved from Reactor Core to a new Reactor Adapter module).
Instead, RxReactiveStreams is now used for adapting RxJava
1 and Flowable methods are used for RxJava 2.
Issue: SPR-14824
This commit changes web.reactive.function to reflect the introduction of
the new WebClient. Changes include:
- Request -> ServerRequest
- Response -> ServerResponse
- FilterFunction -> HandlerFilterFunction
- StrategiesSupplier -> HandlerStrategies
This commit refactors the web client to be more similar to
web.reactive.function. Changes include:
- Refactor ClientWebRequest to immutable ClientRequest with builder and
support for BodyInserters.
- Introduce ClientResponse which exposes headers, status, and support
for reading from the body with BodyExtractors.
- Removed ResponseErrorHandler, in favor of having a ClientResponse
with "error" status code (i.e. 4xx or 5xx). Also removed
WebClientException and subclasses.
- Refactored WebClientConfig to WebClientStrategies.
- Refactored ClientHttpRequestInterceptor to ExchangeFilterFunction.
- Removed ClientWebRequestPostProcessor in favor of
ExchangeFilterFunction, which allows for asynchronous execution.
Issue: SPR-14827
This commit moves the web.reactive.function.[BodyInserter|BodyExtractor]
to http.codec, so that they can be used from the client as well.
Furthermore, it parameterized both inserter and extractor over
ReactiveHttpOutputMessage and ReactiveHttpInputMessage respectively, so
that they can be limited to only be used on the client or server.
This commit improves the existing web reactive configuration
infrastructure with the following changes:
* renamed `WebReactiveConfiguration` to
`WebReactiveConfigurationSupport` and is is no longer a Configuration
class
* created the `WebReactiveConfigurer` interface; Configuration classes
implementing it will augment the web reactive configuration support
* created the `DelegatingWebReactiveConfiguration` and
`WebReactiveConfigurerComposite` to effectively tie those custom-defined
configurers to the main configuration support
* created the `@EnableWebReactive` to active that support in
configuration classes
Issue: SPR-14754
This commit replaces direct use of Validator and ConversionService in
the reactive @RequestMapping infrustructure in favor of using the
BindingContext.
Issue: SPR-14541
