Hello,
I have a problem using Jess.
I written a simple application in Java that create a Rete object, then
"(batch)" a text file containing rules and facts; then the app do a
"(reset)".
The application do a loop: display all "facts" and the "agenda" content,
then it do "(run 1)", the rule fired is also displayed, then the cycle
restart.
I can report a short (!) log below:
DEBUG: before (run 1)
f-0 (initial-fact)
f-1 (tinyrobot (x 1) (y 1) (initx nil) (inity nil) (name "faBio"))
f-2 (goal (x 11) (y 3))
f-3 (labyrinth (columns 11) (rows 11))
f-4 (start)
f-5 (robot_wnd_vision (distance 1))
f-6 (occupied (x 1) (y 10))
.............
f-52 (occupied (x 11) (y 8))
AGENDA:
[Activation: start_rule f-4, f-3, f-2, f-1 ; time=14 ; salience=0]
>>>>> start_rule
DEBUG: after (run 1)
f-0 (initial-fact)
f-1 (tinyrobot (x 1) (y 1) (initx 1) (inity 1) (name "faBio"))
f-2 (goal (x 11) (y 3))
f-3 (labyrinth (columns 11) (rows 11))
f-5 (robot_wnd_vision (distance 1))
f-6 (occupied (x 1) (y 10))
........................
f-52 (occupied (x 11) (y 8))
f-53 (passed (x 1) (y 1))
f-54 (moves_counter (c 0))
f-55 (init_colorizing)
AGENDA:
[Activation: init_colorize f-1, f-55 ; time=116 ; salience=0]
[Activation: init_colorize f-1, f-55 ; time=59 ; salience=0]
>>>>> init_colorize
DEBUG: after (run 1)
f-0 (initial-fact)
f-1 (tinyrobot (x 1) (y 1) (initx 1) (inity 1) (name "faBio"))
f-2 (goal (x 11) (y 3))
f-3 (labyrinth (columns 11) (rows 11))
f-5 (robot_wnd_vision (distance 1))
f-6 (occupied (x 1) (y 10))
......................
f-52 (occupied (x 11) (y 8))
f-53 (passed (x 1) (y 1))
f-54 (moves_counter (c 0))
f-56 (color_depth (depth 0))
f-57 (start_colorizing_by (x 1) (y 1))
f-58 (colorizing_pos (x 1) (y 1))
f-59 (colorizing)
AGENDA:
[Activation: color_S f-3, f-59, f-58, f-57,, f-56, f-5,,, ; time=513 ;
salience=0]
[Activation: color_E f-3, f-59, f-58, f-57,, f-5,, f-56,, ; time=513 ;
salience=0]
[Activation: init_colorize f-1, f-55 ; time=59 ; salience=0]
[Activation: end_colorizing_stop_colorizing f-59, f-56, f-5,, ; time=258 ;
salience=-1]
[Activation: end_colorizing_unmobile f-59, f-56, f-5,, ; time=258 ;
salience=-1]
>>>>> color_S
DEBUG: after (run 1)
f-0 (initial-fact)
f-1 (tinyrobot (x 1) (y 1) (initx 1) (inity 1) (name "faBio"))
f-2 (goal (x 11) (y 3))
f-3 (labyrinth (columns 11) (rows 11))
f-5 (robot_wnd_vision (distance 1))
f-6 (occupied (x 1) (y 10))
.......................
f-52 (occupied (x 11) (y 8))
f-53 (passed (x 1) (y 1))
f-54 (moves_counter (c 0) (is_jess_the_crappiest_ever_thing "yes"))
f-56 (color_depth (depth 0))
f-57 (start_colorizing_by (x 1) (y 1))
f-58 (colorizing_pos (x 1) (y 1))
f-59 (colorizing)
f-60 (colorized_cell (x 1) (y 2) (depth 1) (flagged 0) (fromx 1) (fromy 1)
(direction south) (north 0) (south 0) (east 0) (west 0))
AGENDA:
[Activation: color_E f-3, f-59, f-58, f-57,, f-5,, f-56,, ; time=513 ;
salience=0]
[Activation: init_colorize f-1, f-55 ; time=59 ; salience=0]
[Activation: end_colorizing_unmobile f-59, f-56, f-5,, ; time=258 ;
salience=-1]
[Activation: end_colorizing_stop_colorizing f-59, f-56, f-5,, ; time=258 ;
salience=-1]
[Activation: end_colorizing_next_level f-59, f-56, f-5,, f-60 ; time=259 ;
salience=-2]
>>>>> color_E
As you can see above, the problem is that the rule "init_colorize" is
activated two times with the same facts:
[Activation: init_colorize f-1, f-55 ; time=116 ; salience=0]
[Activation: init_colorize f-1, f-55 ; time=59 ; salience=0]
Anyway, the facts are the same, but the time is different...
I must notice that this strange behaviour is only due to my application,
since the jess.Main or jess.Console runs correctly, in fact the
init_colorize is activated only once in the agenda.
My Java code is simply:
public void actionPerformed(ActionEvent p_aE)
{
try
{
Fact l_fact;
Rete l_rete=m_rete;
l_rete.executeCommand("(run 1)");
System.out.println("DEBUG: after (run 1)");
l_enum=l_rete.listFacts();
while(l_enum.hasNext())
{
l_fact=(Fact)(l_enum.next());
System.out.println("f-"+l_fact.getFactId()+"
"+l_fact.toString());
}//while
}//while
}//try
catch(Exception e)
{
System.out.println(e);
}//catch
}
}//class
Many thanks if u can help me.
Luca
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