Provide access to ApplicationContext via ServerWebExchange [SPR-16298]

[spring-projects-issues]

Madhura Bhave opened SPR-16298 and commented

In the MVC world, we can get the servletContext from the HttpServletRequest and then get a handle on the ApplicationContext.

It would be nice if we could have something similar for a ServerWebExchange.

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Issue Links:

• The WebHttpHandlerBuilder copy constructor does not copy the applicationcontext [SPR-16972] #21510 The WebHttpHandlerBuilder copy constructor does not copy the applicationcontext

Referenced from: commits 37f0e8c

0 votes, 5 watchers

[spring-projects-issues]

Rossen Stoyanchev commented

This can be done although the ApplicationContext may or may not be available. When WebHttpHandlerBuilder#applicationContext is used to bootstrap by detecting WebHandler's, WebFilter's, and others in the context (this is the common case) it would be available. WebHttpHandlerBuilder can also be used to directly register request handling components and that is less likely but possible still. So such a method would have to be @Nullable.

Can you share a little more about your use case? We haven't run into this yet since many components that need access to the ApplicationContext (like handler mappings, view resolvers) are beans themselves and can be injected with it.

[spring-projects-issues]

Stéphane Nicoll commented

Thanks for the reply. Here is the related issue. We have dedicated RequestMatchers for securing the actuator and the implementation gets the actual information that it needs when the path needs to be resolved. It's working fine in MVC but we can't implement the same thing in WebFlux because of this.