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

    [ https://issues.apache.org/jira/browse/WW-4874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16406366#comment-16406366
] 

ASF subversion and git services commented on WW-4874:
-----------------------------------------------------

Commit fb8f139b069dd32ccecf9abe6b4c110a666ca860 in struts's branch refs/heads/master from
[~yasser.zamani]
[ https://gitbox.apache.org/repos/asf?p=struts.git;h=fb8f139 ]

WW-4874 Renames local variable inv to invocation


> Asynchronous action method
> --------------------------
>
>                 Key: WW-4874
>                 URL: https://issues.apache.org/jira/browse/WW-4874
>             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 = result.call();}} 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
= result.call();}} 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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