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Posted to users@wicket.apache.org by fachhoch <fa...@gmail.com> on 2010/08/02 16:15:16 UTC
using cometd with threads
I was looking into cometd , I tried the example it worked for me.I have a
new requirement ,
I have to update a panel in my page if a job running seperately in a
thread has finished processing.
for example user clicks a link, this starts a job in a thread
asychronously. This job might take several days , when this user logs in
back and if the job is completed I want to show the user that the job is
completed,
in my case a thread has to publish to a channel is this possible ?
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Re: using cometd with threads
Posted by Rodolfo Hansen <kr...@gmail.com>.
You may use a servlet context listener...
Get the spring applicationContext and add the Bayuex Service been to it
when it context is initialized
http://www.java-tips.org/java-ee-tips/java-servlet/how-to-work-with-servletcontextlistener.html
On Tue, 2010-08-17 at 08:06 -0700, fachhoch wrote:
> I wan to inject Bayeaux service in a pojo initialized by spring , please
> sugest me how can I get servlet context in a spring bean ?
>
Re: using cometd with threads
Posted by jcgarciam <jc...@gmail.com>.
I haven't tried this myself, but take a look into the Spring interface
ServletContextAware<http://static.springsource.org/spring/docs/2.5.x/api/org/springframework/web/context/ServletContextAware.html>it
may shed some light to achieve what you want.
*
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On Tue, Aug 17, 2010 at 12:06 PM, fachhoch [via Apache Wicket] <
ml-node+2328511-1648896416-65838@n4.nabble.com<ml...@n4.nabble.com>
> wrote:
> I wan to inject Bayeaux service in a pojo initialized by spring ,
> please sugest me how can I get servlet context in a spring bean ?
>
>
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Work smarter, not harder!.
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Re: using cometd with threads
Posted by fachhoch <fa...@gmail.com>.
I wan to inject Bayeaux service in a pojo initialized by spring , please
sugest me how can I get servlet context in a spring bean ?
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Re: using cometd with threads
Posted by jcgarciam <jc...@gmail.com>.
If you are starting your Job from a Web Request, initialize your Bayeaux
service (as Rodolfo mentioned) and pass that to your processing Job (Your
Job doesn't have to be WebApi aware) as Rodolfo said, Bauyeaux is meant to
be used a messaging API.
On Tue, Aug 3, 2010 at 11:00 AM, fachhoch [via Apache Wicket] <
ml-node+2311905-1356455233-229420@n4.nabble.com<ml...@n4.nabble.com>
> wrote:
> If I do that I am using web api in service which is not good , so any other
> way ?
>
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Sincerely,
JC
Work smarter, not harder!.
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Re: using cometd with threads
Posted by fachhoch <fa...@gmail.com>.
If I do that I am using web api in service which is not good , so any other
way ?
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Re: using cometd with threads
Posted by Rodolfo Hansen <kr...@gmail.com>.
You can get it from the ServletContext:
getServletContext().getAttribute(BayeuxServer.ATTRIBUTE);
On Mon, 2010-08-02 at 11:18 -0700, fachhoch wrote:
> Please suggest me how to get Bayeux service in service layer , right now I
> have in subclass of org.apache.wicket.protocol.http.Application
>
>
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Re: using cometd with threads
Posted by fachhoch <fa...@gmail.com>.
Please suggest me how to get Bayeux service in service layer , right now I
have in subclass of org.apache.wicket.protocol.http.Application
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Re: using cometd with threads
Posted by Rodolfo Hansen <kr...@gmail.com>.
How are you getting the Bayeux service?
It is alright to think of the Bayeux service as a messaging api, that
jumps across your various layers (from the service to the javascript
client). As long as you remember you can't trust the javascript clients
(malicious users), you are fine.
On Mon, 2010-08-02 at 08:14 -0700, fachhoch wrote:
> but is it write to use web api in my service classes ?
> My job is in service layer as its a thread and web has nothing to do with ,
> now I have to call web api (cometd api ) inside my service classes is
> this write ?
>
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Re: using cometd with threads
Posted by fachhoch <fa...@gmail.com>.
but is it write to use web api in my service classes ?
My job is in service layer as its a thread and web has nothing to do with ,
now I have to call web api (cometd api ) inside my service classes is
this write ?
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Re: using cometd with threads
Posted by Rodolfo Hansen <kr...@gmail.com>.
Yes, the code is designed to be thread safe.
On Mon, 2010-08-02 at 07:15 -0700, fachhoch wrote:
> I was looking into cometd , I tried the example it worked for me.I have a
> new requirement ,
> I have to update a panel in my page if a job running seperately in a
> thread has finished processing.
>
>
> for example user clicks a link, this starts a job in a thread
> asychronously. This job might take several days , when this user logs in
> back and if the job is completed I want to show the user that the job is
> completed,
> in my case a thread has to publish to a channel is this possible ?
>
>
>
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