The WebSocketHandler adapters for all runtimes now extend
WebSocketHandlerAdapterSupport, which now also exposes
a shared DataBufferFactory property initialized from the response.
Issue: SPR-14527
suspend/resumeReceiving in the AbstractListenerWebSocketSession are
now abstract methods. In Tomcat/Jetty these methods are no-op
implementations that are then coupled with a buffering strategy via
Flux#onBackpressureBuffer. In Undertow they rely on flow control for
receiving WebSocket messages.
Issue: SPR-14527
- Added suspended flag to indicate whether the ReceivePublisher
is able to process the incoming messages.
- Use buffer strategy for the incoming messages.
Issue: SPR-14527
Dropped "Support" from the name since it not only provides support
methods but actually implements WebSocketSession.
Renamed inner classes:
WebSocketMessagePublisher -> WebSocketReceivePublisher
WebSocketMessageProcessor -> WebSocketSendProcessor
Add protected getter for sendProcessor.
Reduce scoping:
WebSocketReceivePublisher -> private
WebSocketSendProcessor -> protected
WebSocketSendProcessor#setReady -> public (class is still protected)
A few more method name alignments and Javadoc updates.
Issue: SPR-14527
AbstractRequestBodyPublisher and AbstractResponseBodyProcessor are now
used for WebSocket messages too and have been renamed more generally to
AbstractListenerReadPublisher and AbstractListenerWriteProcessor.
Issue: SPR-14527
This commit also migrates from a WeakHashMap to a ConcurrentReferenceHashMap, allowing for concurrent access to existing cache entries.
Issue: SPR-15006
When getting the lookup path of a resource, both query params and hashes
should be removed from the request path.
This commit fixes the public path resolution for paths like
`/resources/main.svg#icon-hamburgermenu`.
Issue: SPR-14928
Prior to this commit, `@ExceptionHandler` methods could not be injected
with `RedirectAttributes` arguments. This would make it impossible to
handle an error by redirecting to another view and add flashmap
attributes, to be included in the model when the next view is called.
Here is an example:
```
@ExceptionHandler(MyException.class)
public String handleException(MyException ex, RedirectAttributes
redirectAttributes) {
redirectAttributes.addFlashAttribute("errorMessage",
"This is an error message");
return "redirect:/";
}
```
This commit adds a new `RedirectAttributesMethodArgumentResolver`
instance in the list of pre-configured `HandlerMethodArgumentResolver`
in `ExceptionHandlerExceptionResolver`.
Issue: SPR-14651
Due to a few changes in `WebSocketServerFactory` and `Session` API, our
`JettyRequestUpgradeStrategy` and `JettyWebSocketSession` needed to
adapt. As of 9.3.15+ and 9.4.0+, some reflection is required to support
previous versions.
Spring 5.0 supports Jetty 9.3 and 9.4.
Issue: SPR-14940
Kazuki Shimizu
Juergen Hoeller
Brian Clozel
Rossen Stoyanchev
Violeta Georgieva
Christoph Dreis
Sebastien Deleuze
bedrin