[2.0][Java] Http context in Async Result - play-framework

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Date: Tue, 3 Jul 2012 12:36:32 +0100
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Subject: Re: [play-framework][2.0][Java] Http context in Async Result
From: Stijn Janssens <stik...@gmail.com>
To: play-framework@googlegroups.com
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Hi I just upgraded to play 2.0.2 and the problem re-appeared

Caused by: java.lang.RuntimeException: There is no HTTP Context available
from here.
at play.mvc.Http$Context.current(Http.java:27) ~[play_2.9.1.jar:2.0.2]
at play.mvc.Controller.flash(Controller.java:70) ~[play_2.9.1.jar:2.0.2]

Any ideas?

Thanks!

On 15 May 2012 12:52, Stikkos <stik...@gmail.com> wrote:

> Cool, i just tested it in master and indeed it has been fixed!
>
> Love it ;-)
>
>
>
> On 15 May 2012, at 11:50, Julien Richard-Foy wrote:
>
> > This should has been fixed in master. Can you try with it?
> >
> > --
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>
Stikkos
15 May
to play-framework
Hi,

I am using AsyncResults in my controllers as defined http
://www.playframework.org/documentation/2.0.1/JavaAsync

public static Result index() {
  Promise<Integer> promiseOfInt = Akka.future(
    new Callable<Integer>() {
      public Integer call() {
        return intensiveComputation();
      }
    }
  );
  return async(
    promiseOfInt.map(
      new Function<Integer,Result>() {
        public Result apply(Integer i) {
	  flash().put("success", "The operation was successful");     // problem line
          return ok("Got result: " + i);
        }
      }
    )
  );
}

The problem is that there is not HTTP context in the async result, which
causes the following error

java.lang.RuntimeException: There is no HTTP Context available from here.
at play.mvc.Http$Context.current(Http.java:27) ~[play_2.9.1.jar:2.0.1]
at play.mvc.Controller.flash(Controller.java:70) ~[play_2.9.1.jar:2.0.1]

Is there any way to modify the HTTP context in an async result? Or what is the
recommended approach to handle stuff like this?

Thanks,
Stik

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Hi I just upgraded to play 2.0.2 and the problem re-appeared<div><br></div>=
<div><div>Caused by: java.lang.RuntimeException: There is no HTTP Context a=
vailable from here.</div><div><span class=3D"Apple-tab-span" style=3D"white=
-space:pre">	</span>at play.mvc.Http$Context.current(Http.java:27) ~[play_2=
.9.1.jar:2.0.2]</div>
<div><span class=3D"Apple-tab-span" style=3D"white-space:pre">	</span>at pl=
ay.mvc.Controller.flash(Controller.java:70) ~[play_2.9.1.jar:2.0.2]</div></=
div><div><br></div><div>Any ideas?</div><div><br></div><div>Thanks!</div><d=
iv>
<br><div class=3D"gmail_quote">On 15 May 2012 12:52, Stikkos <span dir=3D"l=
tr">&lt;<a href=3D"mailto:stik...@gmail.com" target=3D"_blank">stikkos@gmai=
l.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Cool, i just tested it in master and indeed it has been fixed!<br>
<br>
Love it ;-)<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
<br>
<br>
On 15 May 2012, at 11:50, Julien Richard-Foy wrote:<br>
<br>
&gt; This should has been fixed in master. Can you try with it?<br>
&gt;<br>
&gt; --<br>
&gt; You received this message because you are subscribed to the Google Gro=
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googlegroups.com">play-framework@googlegroups.com</a>.<br>
&gt; To unsubscribe from this group, send email to <a href=3D"mailto:play-f=
ramework%2Bunsubscribe@googlegroups.com">play-framework+unsubscribe@googleg=
roups.com</a>.<br>
&gt; For more options, visit this group at <a href=3D"http://groups.google.=
com/group/play-framework?hl=3Den" target=3D"_blank">http://groups.google.co=
m/group/play-framework?hl=3Den</a>.<br>
&gt;<br>
<br></div></div></blockquote><div><br></div><div class=3D"gE iv gt" style=
=3D"font-size:13px;padding-left:0px;padding-bottom:3px;padding-right:0px;pa=
dding-top:12px;border-collapse:collapse;color:rgb(34,34,34);font-family:ari=
al,sans-serif">
<table cellpadding=3D"0" class=3D"cf gJ" style=3D"border-collapse:collapse;=
margin-top:0px;width:auto"><tbody><tr class=3D"acZ" style=3D"height:16px"><=
td class=3D"gF gK" style=3D"margin-top:0px;margin-right:0px;margin-bottom:0=
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<table cellpadding=3D"0" class=3D"cf ix" style=3D"border-collapse:collapse;=
table-layout:fixed;width:1009px"><tbody><tr><td style=3D"margin-top:0px;mar=
gin-right:0px;margin-bottom:0px;margin-left:0px;font-family:arial,sans-seri=
f"><div class=3D"iw" style=3D"overflow-x:hidden;overflow-y:hidden;white-spa=
ce:nowrap;max-width:92%;display:inline-block">
<span class=3D"gD" style=3D"font-size:13px;font-weight:bold;white-space:now=
rap;display:inline;vertical-align:top;color:rgb(34,34,34)">Stikkos</span></=
div></td></tr></tbody></table></td><td class=3D"gH" style=3D"margin-top:0px=
;margin-right:0px;margin-bottom:0px;margin-left:0px;font-family:arial,sans-=
serif;text-align:right;white-space:nowrap;vertical-align:top;color:rgb(34,3=
4,34)">
<div class=3D"gK" style=3D"padding-top:0px;padding-right:2px"><span></span>=
<span id=3D":1o" class=3D"g3" title=3D"15 May 2012 11:14" alt=3D"15 May 201=
2 11:14" style=3D"vertical-align:top;margin-right:3px">15 May</span><div cl=
ass=3D"zd" tabindex=3D"-1" style=3D"display:inline-block;height:20px;outlin=
e-width:0px;outline-style:initial;outline-color:initial">
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enter;width:19px;padding-top:2px;padding-right:2px;padding-bottom:2px;paddi=
ng-left:2px;margin-right:0px;margin-left:0px"><img class=3D"f T-KT-JX" src=
=3D"https://mail.google.com/mail/images/cleardot.gif" alt=3D"" style=3D"mar=
gin-top: 0px; vertical-align: top; "></span></div>
</div></td><td class=3D"gH" style=3D"margin-top:0px;margin-right:0px;margin=
-bottom:0px;margin-left:0px;font-family:arial,sans-serif;text-align:right;w=
hite-space:nowrap;vertical-align:top;color:rgb(34,34,34)"></td><td class=3D=
"gH acX" rowspan=3D"2" style=3D"margin-top:0px;margin-right:0px;margin-bott=
om:0px;margin-left:0px;font-family:arial,sans-serif;text-align:right;white-=
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<div class=3D"T-I J-J5-Ji T-I-Js-IF aaq T-I-ax7 L3" tabindex=3D"0" style><i=
mg class=3D"hB T-I-J3" src=3D"https://mail.google.com/mail/images/cleardot.=
gif" alt=3D"" style=3D"height: 21px; width: 21px; background-image: url(htt=
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<div id=3D":3y" class=3D"T-I J-J5-Ji T-I-Js-Gs aap T-I-awG T-I-ax7 L3" titl=
e=3D"More" tabindex=3D"0" style><img class=3D"hA T-I-J3" src=3D"https://mai=
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ground-repeat: no-repeat no-repeat; "></div>
</td></tr><tr class=3D"acZ xD" style=3D"height:16px"><td colspan=3D"3" styl=
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=3D"border-collapse:collapse;table-layout:fixed;white-space:nowrap;width:10=
88px">
<tbody><tr><td class=3D"ady" style=3D"margin-top:0px;margin-right:0px;margi=
n-bottom:0px;margin-left:0px;font-family:arial,sans-serif;overflow-x:hidden=
;overflow-y:hidden;white-space:nowrap"><div class=3D"iw ajw" style=3D"overf=
low-x:hidden;overflow-y:hidden;white-space:nowrap;max-width:92%;display:inl=
ine-block">
<span class=3D"hb" style=3D"vertical-align:top;color:rgb(119,119,119)">to=
=A0<span class=3D"g2" style=3D"vertical-align:top">play-framework</span></s=
pan></div><div class=3D"ajy" style=3D"display:inline-block;padding-left:5px=
;vertical-align:top">
<img class=3D"ajz" id=3D":3z" tabindex=3D"0" src=3D"https://mail.google.com=
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l,sans-serif;font-size:medium"></div><div class=3D"tx78Ic" style=3D"border-=
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e:medium">
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34,34);font-family:arial,sans-serif;font-size:medium"></div><div id=3D":40"=
 tabindex=3D"-1" style=3D"border-collapse:collapse;color:rgb(34,34,34);font=
-family:arial,sans-serif;font-size:medium">
</div><div id=3D":1q" class=3D"ii gt adP adO" style=3D"font-size:13px;margi=
n-top:5px;margin-right:15px;margin-bottom:0px;margin-left:0px;padding-botto=
m:5px;border-collapse:collapse;color:rgb(34,34,34);font-family:arial,sans-s=
erif">
<div id=3D":1r"><div style=3D"word-wrap:break-word">Hi,<div><br></div><div>=
I am using AsyncResults in my controllers as defined=A0<a href=3D"http://ww=
w.playframework.org/documentation/2.0.1/JavaAsync" target=3D"_blank" style=
=3D"color:rgb(17,85,204)"><span class=3D"il" style=3D"background-image:init=
ial;background-color:rgb(255,255,204);color:rgb(34,34,34);background-repeat=
:initial initial">http</span>://www.playframework.org/documentation/2.0.1/J=
avaAsync</a></div>
<div><br></div><div><pre style=3D"white-space:pre-wrap;margin-top:10px;marg=
in-right:0px;margin-bottom:10px;margin-left:0px;padding-top:8px;padding-rig=
ht:8px;padding-bottom:8px;padding-left:8px;border-top-width:1px;border-righ=
t-width:1px;border-bottom-width:1px;border-left-width:1px;border-style:init=
ial;border-color:initial;outline-width:0px;outline-style:initial;outline-co=
lor:initial;font-weight:inherit;font-style:inherit;border-top-style:solid;b=
order-right-style:solid;border-bottom-style:solid;border-left-style:solid;b=
order-top-color:rgb(225,225,232);border-right-color:rgb(225,225,232);border=
-bottom-color:rgb(225,225,232);border-left-color:rgb(225,225,232);backgroun=
d-image:initial;background-color:rgb(247,247,249);border-top-left-radius:5p=
x;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-=
left-radius:5px">
<font color=3D"#1e347b" face=3D"inconsolata, monospace"><span style=3D"font=
-size:14px">public static Result index() {
  Promise&lt;Integer&gt; promiseOfInt =3D Akka.future(
    new Callable&lt;Integer&gt;() {
      public Integer call() {
        return intensiveComputation();
      }
    }
  );
  return async(
    promiseOfInt.map(
      new Function&lt;Integer,Result&gt;() {
        public Result apply(Integer i) {
	  flash().put(&quot;success&quot;, &quot;The operation was successful&quot=
;);     // problem line
          return ok(&quot;Got result: &quot; + i);
        }=20
      }
    )
  );
}</span></font></pre><div>The problem=A0<span class=3D"il" style=3D"backgro=
und-image:initial;background-color:rgb(255,255,204);color:rgb(34,34,34);bac=
kground-repeat:initial initial">is</span>=A0that=A0<span class=3D"il" style=
=3D"background-image:initial;background-color:rgb(255,255,204);color:rgb(34=
,34,34);background-repeat:initial initial">there</span>=A0<span class=3D"il=
" style=3D"background-image:initial;background-color:rgb(255,255,204);color=
:rgb(34,34,34);background-repeat:initial initial">is</span>=A0not=A0<span c=
lass=3D"il" style=3D"background-image:initial;background-color:rgb(255,255,=
204);color:rgb(34,34,34);background-repeat:initial initial">HTTP</span>=A0<=
span class=3D"il" style=3D"background-image:initial;background-color:rgb(25=
5,255,204);color:rgb(34,34,34);background-repeat:initial initial">context</=
span>=A0in the async result, which causes the following error</div>
</div><div><br></div><div><div>java.lang.RuntimeException:=A0<span class=3D=
"il" style=3D"background-image:initial;background-color:rgb(255,255,204);co=
lor:rgb(34,34,34);background-repeat:initial initial">There</span>=A0<span c=
lass=3D"il" style=3D"background-image:initial;background-color:rgb(255,255,=
204);color:rgb(34,34,34);background-repeat:initial initial">is</span>=A0<sp=
an class=3D"il" style=3D"background-image:initial;background-color:rgb(255,=
255,204);color:rgb(34,34,34);background-repeat:initial initial">no</span>=
=A0<span class=3D"il" style=3D"background-image:initial;background-color:rg=
b(255,255,204);color:rgb(34,34,34);background-repeat:initial initial">HTTP<=
/span>=A0<span class=3D"il" style=3D"background-image:initial;background-co=
lor:rgb(255,255,204);color:rgb(34,34,34);background-repeat:initial initial"=
>Context</span>=A0<span class=3D"il" style=3D"background-image:initial;back=
ground-color:rgb(255,255,204);color:rgb(34,34,34);background-repeat:initial=
 initial">available</span>=A0from here.</div>
<div><span style=3D"white-space:pre-wrap">	</span>at play.mvc.<span class=
=3D"il" style=3D"background-image:initial;background-color:rgb(255,255,204)=
;color:rgb(34,34,34);background-repeat:initial initial">Http</span>$<span c=
lass=3D"il" style=3D"background-image:initial;background-color:rgb(255,255,=
204);color:rgb(34,34,34);background-repeat:initial initial">Context</span>.=
current(<span class=3D"il" style=3D"background-image:initial;background-col=
or:rgb(255,255,204);color:rgb(34,34,34);background-repeat:initial initial">=
Http</span>.java:27) ~[play_2.9.1.jar:2.0.1]</div>
<div><span style=3D"white-space:pre-wrap">	</span>at play.mvc.Controller.fl=
ash(Controller.java:70) ~[play_2.9.1.jar:2.0.1]</div></div><div><br></div><=
div><span class=3D"il" style=3D"background-image:initial;background-color:r=
gb(255,255,204);color:rgb(34,34,34);background-repeat:initial initial">Is</=
span>=A0<span class=3D"il" style=3D"background-image:initial;background-col=
or:rgb(255,255,204);color:rgb(34,34,34);background-repeat:initial initial">=
there</span>=A0any way to modify the=A0<span class=3D"il" style=3D"backgrou=
nd-image:initial;background-color:rgb(255,255,204);color:rgb(34,34,34);back=
ground-repeat:initial initial">HTTP</span>=A0<span class=3D"il" style=3D"ba=
ckground-image:initial;background-color:rgb(255,255,204);color:rgb(34,34,34=
);background-repeat:initial initial">context</span>=A0in an async result? O=
r what=A0<span class=3D"il" style=3D"background-image:initial;background-co=
lor:rgb(255,255,204);color:rgb(34,34,34);background-repeat:initial initial"=
>is</span>=A0the recommended approach to handle stuff like this?</div>
<div><br></div><div>Thanks,</div></div></div></div><div><span class=3D"Appl=
e-style-span" style=3D"border-collapse:collapse;color:rgb(34,34,34);font-fa=
mily:arial,sans-serif;font-size:13px">Stik</span>=A0</div></div><br></div>

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