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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (WW-4874) Asynchronous action method
Date Tue, 20 Mar 2018 14:00:02 GMT


ASF subversion and git services commented on WW-4874:

Commit dc645bec4d6aa21b88372a06f0eca0c7b7b0d38b in struts's branch refs/heads/master from
[;h=dc645be ]

Merge branch 'master' into WW-4874

> Asynchronous action method
> --------------------------
>                 Key: WW-4874
>                 URL:
>             Project: Struts 2
>          Issue Type: New Feature
>          Components: Core Actions, Dispatch Filter
>            Reporter: Yasser Zamani
>            Priority: Major
>              Labels: action, asynchronous
>             Fix For: 2.6
>   Original Estimate: 1,344h
>  Remaining Estimate: 1,344h
> User will be able to return {{java.util.concurrent.Callable<String>}} in their
actions. Struts when sees such result, runs {{resultCode =;}} in it's own managed
thread pool but exits from servlet's main thread with a null result, i.e. gives back main
thread to container and leaves response open for concurrent processing. When {{resultCode
=;}} returned, Struts calls {{javax.servlet.AsyncContext.dispatch()}} and {{resumes
request processing}} within a container's thread servlet to generate the appropriate result
for user according to {{resultCode}}.
> This adds better support for SLS (Short request processing, Long action execution, Short
response processing) via Servlet 3's Async API.
> Support of other cases like SSL (e.g. a download server) or LLL(e.g. a video converter
server) is still open.

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