12:23 p.m.
Hello, guys,
I've got a rule which states:
rule "quest_reach_level_1_in_any_category_accomplished"
when
$gsc : GameStateController(hasEventOccurred("eventId") &&
!hasEventOccurred("otherEventId") &&
hasAnyEventOccurred("param1",
"param2", "param3", "param4", "param5",
"param6", "param7", "param8",
"param9", "param10", "param11", "param12"))
$response : Response()
then
... some business logic
end
which ends up with:
Caused by: org.drools.RuntimeDroolsException: Exception executing predicate
hasA
nyEventOccurred("level1_love", "level1_friendship",
"level1_prosperity",
"level1
_charisma", "level1_willpower", "level1_wisdom",
"level1_entertainment",
"level1
_adventure", "level1_inspiration", "level1_harmony",
"level1_lightheartedness",
"level1_confidence")
at
org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:298)
at org.drools.reteoo.AlphaNode.modifyObject(AlphaNode.java:145)
at
org.drools.reteoo.SingleObjectSinkAdapter.propagateModifyObject(SingleObjectSinkAdapter.java:68)
at org.drools.reteoo.AlphaNode.modifyObject(AlphaNode.java:149)
at
org.drools.reteoo.SingleObjectSinkAdapter.propagateModifyObject(SingleObjectSinkAdapter.java:68)
at org.drools.reteoo.AlphaNode.modifyObject(AlphaNode.java:149)
at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateModifyObject(CompositeObjectSinkAdapter.java:468)
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateModifyObject(CompositeObjectSinkAdapter.java:436)
at
org.drools.reteoo.ObjectTypeNode.modifyObject(ObjectTypeNode.java:288)
at
org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:271)
at
org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:459)
at
org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:363)
at
org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:298)
at
org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:306)
at
org.drools.base.ModifyInterceptor.doAfter(ModifyInterceptor.java:59)
at
org.mvel2.ast.InterceptorWrapper.getReducedValueAccelerated(InterceptorWrapper.java:38)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:87)
at
org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:122)
at org.mvel2.MVEL.executeExpression(MVEL.java:930)
at
org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:105)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1091)
... 47 more
Caused by: java.lang.RuntimeException: cannot invoke method:
hasAnyEventOccurred
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:62)
at
org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:106)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:87)
at
org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:122)
at org.mvel2.MVEL.executeExpression(MVEL.java:930)
at
org.drools.base.mvel.MVELPredicateExpression.evaluate(MVELPredicateExpression.java:100)
at
org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:291)
... 67 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 12
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.executeAll(MethodAccessor.java:148)
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:47)
... 73 more
I'm using Drools 5.3.0.Final and it fails when it comes to evaluating the
predicate hasAnyEventOccurred(String... varArgs).
Thanks,
Martin
12:46 p.m.
May be drool cannot support variable length arguments in methods. But,
seeing your rules, I think you should change the way you match your
events objects by exploiting drools syntax and RETE instead of calling
predicates.
If I understand well, you are creating a game, and this rule should
trigger when the player achives some goals to pass him to next level.
So I guess that your GameStateController contains a set of Event objects ?
If yes, I recommend inserting directly the event in the session, and
write a rule like this :
rule "quest_reach_level_1_in_any_category_accomplished"
when
Event(id == "eventId")
*not *Event(id == "otherEventId")
*exists *Event(id == "param1" || "param2" || "param3" ....
etc etc)
$gsc : GameStateController() // if you still need it,
consider adding it as a global
$response : Response() // if you can, set it as global
then
... some business logic
end
Note that it is solving the problem of varaible length argument, using
the fact that you can add easily new terms to a boolean expression.
Le 17/01/2012 19:23, Martin A a écrit :
Hello, guys,
I've got a rule which states:
rule "quest_reach_level_1_in_any_category_accomplished"
when
$gsc : GameStateController(hasEventOccurred("eventId") &&
!hasEventOccurred("otherEventId") &&
hasAnyEventOccurred("param1",
"param2", "param3", "param4", "param5",
"param6", "param7", "param8",
"param9", "param10", "param11", "param12"))
$response : Response()
then
... some business logic
end
which ends up with:
Caused by: org.drools.RuntimeDroolsException: Exception executing
predicate hasA
nyEventOccurred("level1_love", "level1_friendship",
"level1_prosperity", "level1
_charisma", "level1_willpower", "level1_wisdom",
"level1_entertainment", "level1
_adventure", "level1_inspiration", "level1_harmony",
"level1_lightheartedness",
"level1_confidence")
at
org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:298)
I'm using Drools 5.3.0.Final and it fails when it comes to evaluating
the predicate hasAnyEventOccurred(String... varArgs).
Thanks,
Martin
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12:58 p.m.
Hi, Vincent,
No, it's actually a List<String> events that is a property of that
GameStateController, not Event objects.
Ok I will workaround it, but I guess it may be a bug, because I think that
varArgs feature was not supported in 5.2.1, and is something new...
Best regards,
Martin
2012/1/17 Vincent Legendre <vincent.legendre(a)eurodecision.com>
May be drool cannot support variable length arguments in methods.
But,
seeing your rules, I think you should change the way you match your events
objects by exploiting drools syntax and RETE instead of calling predicates.
If I understand well, you are creating a game, and this rule should
trigger when the player achives some goals to pass him to next level.
So I guess that your GameStateController contains a set of Event objects ?
If yes, I recommend inserting directly the event in the session, and write
a rule like this :
rule "quest_reach_level_1_in_any_category_accomplished"
when
Event(id == "eventId")
*not *Event(id == "otherEventId")
*exists *Event(id == "param1" || "param2" ||
"param3" .... etc
etc)
$gsc : GameStateController() // if you still need it, consider
adding it as a global
$response : Response() // if you can, set it as
global
then
... some business logic
end
Note that it is solving the problem of varaible length argument, using the
fact that you can add easily new terms to a boolean expression.
Le 17/01/2012 19:23, Martin A a écrit :
Hello, guys,
I've got a rule which states:
rule "quest_reach_level_1_in_any_category_accomplished"
when
$gsc : GameStateController(hasEventOccurred("eventId") &&
!hasEventOccurred("otherEventId") &&
hasAnyEventOccurred("param1",
"param2", "param3", "param4", "param5",
"param6", "param7", "param8",
"param9", "param10", "param11", "param12"))
$response : Response()
then
... some business logic
end
which ends up with:
Caused by: org.drools.RuntimeDroolsException: Exception executing
predicate hasA
nyEventOccurred("level1_love", "level1_friendship",
"level1_prosperity",
"level1
_charisma", "level1_willpower", "level1_wisdom",
"level1_entertainment",
"level1
_adventure", "level1_inspiration", "level1_harmony",
"level1_lightheartedness",
"level1_confidence")
at
org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:298)
I'm using Drools 5.3.0.Final and it fails when it comes to evaluating the
predicate hasAnyEventOccurred(String... varArgs).
Thanks,
Martin
_______________________________________________
rules-users mailing
listrules-users@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users
_______________________________________________
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rules-users(a)lists.jboss.org
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1:08 p.m.
ok, did not know that.
If you use lists, you can use the 'contains' operator then, instead of
your predicates (will be more efficient).
But I think it is better to deal with Event objects (will be even more
efficient, and far much extensible in the future when you will want to
add more business logic, for example using fusion temporal operators ...).
And may be that in fact, it is your GameStateController that should be a
living ksession in where you post events ...
Le 17/01/2012 19:58, Martin A a écrit :
Hi, Vincent,
No, it's actually a List<String> events that is a property of that
GameStateController, not Event objects.
Ok I will workaround it, but I guess it may be a bug, because I think
that varArgs feature was not supported in 5.2.1, and is something new...
Best regards,
Martin
1:26 p.m.
Thanks for your reply Vincent :)
Best regards,
Martin
On Tue, Jan 17, 2012 at 9:08 PM, Vincent Legendre <
vincent.legendre(a)eurodecision.com> wrote:
ok, did not know that.
If you use lists, you can use the 'contains' operator then, instead of
your predicates (will be more efficient).
But I think it is better to deal with Event objects (will be even more
efficient, and far much extensible in the future when you will want to
add more business logic, for example using fusion temporal operators ...).
And may be that in fact, it is your GameStateController that should be a
living ksession in where you post events ...
Le 17/01/2012 19:58, Martin A a écrit :
> Hi, Vincent,
>
> No, it's actually a List<String> events that is a property of that
> GameStateController, not Event objects.
> Ok I will workaround it, but I guess it may be a bug, because I think
> that varArgs feature was not supported in 5.2.1, and is something new...
>
> Best regards,
> Martin
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4 comments
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participants (2)
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Vincent Legendre