Hi,
>> Is there a way to somehow get access to the SWI-Prolog environment
>> that JPL uses via a console? Ideally I'd like to be able for instance
>> to start plwin.exe halfway the execution of my Java software to gain
>> access to the Prolog environment (including its state established by
>> running the software) and run some queries (for testing purposes).
>> Alternatively, I would not mind handling input and output from prolog
>> within my application itself. Is there any way to do this?
>
> Have a look at attach_console/0 in the Ref Manual 8.5.1 Debugging threads
I tried running attach_hook/0 through JPL, but this gave the following
error:
jpl.PrologException: PrologException: error(existence_error(procedure,
:(thread_util, /(win_open_console, 5))), context(:(system, /(call, 1)),
_0))
at jpl.Query.get1(Query.java:338)
at jpl.Query.hasMoreSolutions(Query.java:251)
at jpl.Query.allSolutions(Query.java:551)
at vs.rationalagent.ui.PrologCommand.execute(PrologCommand.java:46)
I find this strange as win_open_console seems to be a predicate in the
system module, and not in the thread_util module. Similar problem for
using interactor/0.When run in the plwin console, attach_console/0 just
yields true, seemingly without doing anything (probably because there is
already a console attached), whilst interactor/0 starts up an
interaction window. But none of these existence errors occur.
Any ideas on what I can do or try?
Thanks,
Ivo
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