Re: Keeping PowerLoom around as a daemon?

Rich,

since you are using Ruby, you might also want to have a look at Mark
Watson's blog pages, since he has generated JRuby bindings for
PowerLoom:

http://www.markwatson.com/opensource/

Just as a clarification from reading your second paragraph: in order
to "load up" PowerLoom with knowledge and query it, change the KB,
etc. you will need to generate KIF, since that's the content language
PowerLoom uses to represent and query knowledge.

Ruby or whatever other programming language you choose is used only to
interface with the PowerLoom API and your particular application,
e.g., to programmatically execute an assertion, retraction or query.

Hans

>>>>> Thomas Russ <[email protected]> writes:

> On Jun 17, 2008, at 7:55 PM, Rich Morin wrote:

>> I think I asked some similar questions several years ago, but
>> many of the details have no doubt changed on all sides.  So...
>> 
>> I'm interested in being able to "load up" a PL instance with a
>> bunch of information, ask questions of it, then adjust the set
>> of information, ask more questions, etc.  My language of choice
>> is Ruby, but I'm willing to generate and parse KIF or other
>> formats, if need be.
>> 
>> Could someone give me a hand-waving summary of how one might
>> approach this, what pitfalls to consider, etc?  My need isn't
>> imminent, but I'd like to know if I'm depending on something
>> that may not be all that easy to make work.

> There are a couple of options.  I'm not sure what sort of integration  
> Ruby might have with Java or C++, so some of this may or may not work.

> 1.  Just create a combined application.  If Ruby supports easy  
> integration with C++, then you can just load the C++ libraries and run  
> a combined application that includes PowerLoom.

> 2.  Use a tcp-stream based server.  We have a Java class  
> edu.isi.powerloom.logic.PowerLoomServer that implements a simple tcp- 
> stream based listener.   You would start up a Java process with the  
> server and have it load your knowledge base.  It then begins listening  
> for tcp connections on a port you specify.   You send commands and  
> queries to server and it gives answers back.  This is the simplest  
> server-based solution.

> 3.  You could use the PowerLoom SOAP server to handle the  
> interactions.  This is a bit more involved, and I don't think we have  
> that code in the standard distribution -- mainly because we haven't  
> really written the documentation on how to set it up.  But that would  
> allow you to use PowerLoom as a web service.


> _______________________________________________
> powerloom-forum mailing list
> [email protected]
> http://mailman.isi.edu/mailman/listinfo/powerloom-forum