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From "Kline, Larry D" <Larry.Kl...@USONCOLOGY.COM>
Subject RE: Sessions
Date Mon, 07 Jan 2013 16:57:53 GMT
Thanks for the suggestion.  I ended up casting like this:

FlowControllerContext_impl fcContext =
(FlowControllerContext_impl)getContext();

This is in my custom flow controller, so getContext() is a superclass
(FlowController_ImplBase) method.

The reason I want to use a session object to store my properties is that
the API says these sessions are per client.  My UIMA app is running in a
JBoss container that is accessed by a web service call.  So multiple
clients could be accessing it simultaneously, each one passing slightly
different parameters.  In the web service method I do this:

	protected AnalysisEngine recognitionAE;
	...
	
recognitionAE.getUimaContext().getSession().put(STEMMER_KEY_NAME,
stemmerAlgorithmKey);

Then later in my custom flow controller I want to get this property and
use it to control the flow.

I'm not familiar with the external resource support.  Can I do something
similar using that?

Thanks,
Larry

-----Original Message-----
From: Burn Lewis [mailto:burnlewis@gmail.com] 
Sent: Friday, January 04, 2013 8:26 PM
To: user@uima.apache.org
Subject: Re: Sessions

With a cast I think you can get the root context and use its session
object.

Session rootSession =
((UimaContextAdmin)aContext).getRootContext().getSession();

Note that the the Javadocs say developers should not use this interface!
It may be preferable to use the external resource support to share a map
amongst annotators.




On Fri, Jan 4, 2013 at 11:22 AM, Eddie Epstein <eaepstein@gmail.com>
wrote:

> I am not 100% sure here, but think that an analytic's UimaContext is 
> fixed after the component has been instantiated. For dynamic control 
> of processing, the flow controller could use something outside of the 
> UIMA framework, or the analytic read a control key put in the CAS 
> itself.
>
> Eddie
>
> On Thu, Jan 3, 2013 at 12:20 PM, Kline, Larry D 
> <Larry.Kline@usoncology.com> wrote:
> > I have a remotely deployed uima application (running in jboss and 
> > using a pear file) that has a web service front end.  One of the web

> > service methods sets a value into the uima session.
> >
> >
> >
> > recognitionAE.getUimaContext().getSession().put("g2_stemmer",
> > stemmerAlgorithmKey);
> >
> >
> >
> > Then I would like to get that value in a user defined flow
controller.
> > But in the flow controller I execute this:
> >
> >
> >
> >                                 fcContext = getContext(); // this is

> > a FlowController method
> >
> >                                 String stemmer = 
> > (String)fcContext.getSession().get(STEMMER_KEY_NAME);
> >
> >
> >
> > And I get a different session object.  Is there some way to get the 
> > root session object?
> >
> >
> >
> > Thanks,
> >
> > Larry
> >
> > </pre>The contents of this electronic mail message and any 
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>
</pre>The contents of this electronic mail message and any attachments are confidential,
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