Wow! That's very nice indeed!
Ernest Friedman-Hill wrote:
> In Jess 5, making Jess's "standard output" go to a servlet's output is
> extremely easy. Say you've got a Rete object in a variable named
> 'engine', and an HttpServletResponse in a variable named 'res'. Then:
>
> engine.addOutputRouter("t", res.getWriter());
>
> That's it! The Jess 5.0a6 manual, section 4.4.6, explains everything
> you need to know about output routers.
>
> At this point Jess 5 is stable enough that I'm recommending everybody
> use it rather than 4.4. This would be somewhat harder to accomplish in
> Jess 4, anyway.
>
> I think Message UK wrote:
> >
> > Thanks Danny, that is helpful. I have no GUI yet, I'm just starting with my
> > servlet stuff and I have servlets like Hello World running just fine on my
> > PC using the built in web server with JDSK and I got the O'Reilly servlets
> > book...
> >
> > I guess what I need to know how to do is take the javacsript or output
> > strings from the RHS of my rules in jess, and have the servlet interpret
> > them. There must be a simple way to do it! Main produces output to standard
> > output, so how do I "capture" the output, or better still, change the output
> > stream from standard to "internal" (if you know what I mean!!!)?? I'll work
> > out the http get and post stuff, I have the text for that. I just have very
> > littl eexperience with output stream stuff.
> >
> > Thanks so much for your help. ANy comments welcome!!!
> >
> > >
> > >Hi,
> > >A lot will depend on how the servlet is to be used - servlets are based
> > >around HTTP
> > >comms, so if you're wanting e.g. user interaction you will have fun sorting
> > >out
> > >what messages to send from form post operations etc. It is remarkably
> > >straightforward to stick an application that doesn't have a lot of GUI
> > >stuff - you
> > >pretty much just take the code from within your main class and bung it in a
> > >servlet
> > >class e.g.
> > >public class WasMyMain extends HttpServlet{
> > >I haven't really looked at it, but I guess that you would be able to do
> > >redirection
> > >from the Jess UI to HTTP, but this could get a bit fiddly - I'd be tempted
> > >to strip
> > >down the front end a bit first and then build a HTTP-based GUI from scratch
> > >(no as
> > >bad as it sounds - doesn't need much more than HTML).
> > >I don't know if you've already done this, but it can take a while to get
> > >the
> > >servlet runner (Jserv or whatever) going right on your web server - what
> > >I'm trying
> > >to say is, get HelloWorldServlet working first before attacking the Jess
> > >code.
> > >The Java Tutorial is pretty good on servlets :
> > >http://java.sun.com/docs/books/tutorial/servlets/index.html
> > >and there's the mailing list :
> > >[EMAIL PROTECTED]
> > >I'd love to hear how you get on.
> > >Cheers,
> > >Danny.
> > >
> > >
> > >Message UK wrote:
> > >
> > > > Hello. I'm hoping to write a servlet which will run JESS, and I'd like
> > >to
> > > > know if I can do so **simply**, by taking the output of jess.Main and
> > >have
> > > > the servlet use this output. I read that the output stream can be
> > >altered,
> > > > so rather than standard output I'd send it to the servlet. Any help? I
> > >have
> > > > seen an example of a servlet by RF Grove but that's a bit too complex
> > >for my
> > > > needs!
> > > >
> > > > Many thanks. Debbie Lampon
> > > >
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>
> ---------------------------------------------------------
> Ernest Friedman-Hill
> Distributed Systems Research Phone: (925) 294-2154
> Sandia National Labs FAX: (925) 294-2234
> Org. 8920, MS 9214 [EMAIL PROTECTED]
> PO Box 969 http://herzberg.ca.sandia.gov
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