Re: [rules-users] Planner: What is a good example/algo to chain entities?
Hi, Any one got an idea? Thanks - http://www.codessentials.com - Your essential software, for free! Follow us at http://twitter.com/#!/Codessentials From: Michiel Vermandel mverm...@yahoo.com To: Rules lists.jboss.org rules-users@lists.jboss.org Sent: Wednesday, February 6, 2013 8:44 AM Subject: [rules-users] Planner: What is a good example/algo to chain entities? Hi, I need to keep some Planning entities (Tasks) together and I am looking for some insights/ideas/examples in how to tackle this. Tasks are grouped by a groupId (Groups are problem facts). The Tasks do not have to be grouped like a pillar but more like an accordion. One of the planning variables is Period, a Period typically is 3 weeks and we have 12 Periods to plan the tasks into. The requirement is that all tasks within a group need to be kept together in such a way that: - the spread (nr of periods) of the tasks is minimal - the spread is never more than the sum of the duration of the separate tasks in the group. So given a group of 3 tasks: 1)This is good: Period 12345789ABC T1: xxx T2: xx T3: x 2)This is better: Period 12345789ABC T1: xxx T2: xx T3: x 3)This is (one of) the best: Period 12345789ABC T1: xxx T2: xx T3: x 4)This is bad: Period 12345789ABC T1: xxx T2: xx T3: x Of course 3 is favorite, but maybe not possible due to other planning variables (- availability of people to execute the tasks). I need to plan a few hundred of such groups of tasks which all share the same Period space and list of available people. (A person can only do one task per period) I have got the DRL rule that keeps the tasks together (rule counts the gaps) , but giving penalty for making gaps (by shifting a single task) makes it hard to find a good solution. What would be the best approach to solve this problem? - A combination of custom mover and swapper which moves/swaps groups instead of single tasks? - The above in combination with a group shuffle factory (swapping tasks in a single group)? Other ideas? Thanks a lot! - http://www.codessentials.com - Your essential software, for free! Follow us at http://twitter.com/#!/Codessentials ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Blaze to drools
Hello, We have a situation wherein we want to convert rules from Blaze into Drools. Basically closed to open source. I would highly appreciate if someone could guide me in this case. Regards, Starfish -- View this message in context: http://drools.46999.n3.nabble.com/Blaze-to-drools-tp4022151.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Find out order of insert in RHS
Hello Wolfgang,
thank you for the hint. I introduced a new Class Counter with just an int
property and a method getAndIncrease. This class is referenced in a base rule
which all the other rules extend.
On the RHS of all rule inserts I set a field to the value of
c.getAndIncrease() which gives me the correct order. The hint with the static
counter was the right one!
Regards
Dominik
-Ursprüngliche Nachricht-
Von: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] Im Auftrag von Wolfgang Laun
Gesendet: Donnerstag, 7. Februar 2013 18:59
An: Rules Users List
Betreff: Re: [rules-users] Find out order of insert in RHS
If object creation is done in the same order as the insertion: surely a simple
static counter in the class would give you the required monotonous value.
Otherwise, a listener could be set, which will see the actual order of
insertion, and it can set the order-of-insertion property.
-W
On 07/02/2013, Sandjaja, Dominik dominik.sandj...@it-motive.de wrote:
Hi everybody,
short: is there a way to have an automatic counter for the RHS of a
rule when inserting several objects in one rule?
Long:
I use drools with a DSL to insert items for a frontend dropdown box.
The generated rule is e.g. like the following one:
rule testRule_H
dialect mvel
when
SomePartOfMyModel( someField == H )
then
DropDownItem fact1 = new DropDownItem();
fact1.setLabel( My Label 1 ); fact1.setValue( B );
insert (fact1);
DropDownItem fact1 = new DropDownItem();
fact1.setLabel( My Label 2 ); fact1.setValue( A );
insert (fact1);
This works nicely and I get all the items. The problem I have is with
the sorting. Users use Guvnor to edit the available items for the
dropdown box, so they add and remove items from the RHS. Since I
retrieve those objects from the knowledge base in my java code like this:
CollectionFactHandle handles =
statefulKnowledgeSession.getFactHandles(new
ClassObjectFilter(DropDownItem.class));
for (FactHandle handle : handles) {
DropDownItem selectItem = (DropDownItem)
statefulKnowledgeSession.getObject(handle);
...
I think I cannot be sure about the order the objects are retrieved
(it's a collection, no guaranteed sorting!). So, I sort the
DropDownItems alphabetically by their value.
My question now is, as stated above: How can I implement a counter
which I can use in the facts being inserted to keep my inserted facts
(DropDownItems) in the same order as they are inserted?
Thanks in advance
Dominik
…
mit freundlichen Grüßen / kind regards Dominik Sandjaja
Fon: +49 (0) 203 60878 183
Fax: +49 (0) 203 60878 222
e-mail: dominik.sandj...@it-motive.de
it-motive AG
Zum Walkmüller 10-12
47269 Duisburg
i...@it-motive.de
http://www.it-motive.de
……
Vorsitzender des Aufsichtsrats: Dipl.-Ing. Klaus Straub
Vorstand: Horst-Dieter Deelmann (Vors.), Matthias Heming, Christoph
Tim Klose HRB 9207, Amtsgericht Duisburg
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mit freundlichen Grüßen / kind regards
Dominik Sandjaja
Fon: +49 (0) 203 60878 183
Fax: +49 (0) 203 60878 222
e-mail: dominik.sandj...@it-motive.de
it-motive AG
Zum Walkmüller 10-12
47269 Duisburg
i...@it-motive.de
http://www.it-motive.de
……
Vorsitzender des Aufsichtsrats: Dipl.-Ing. Klaus Straub
Vorstand: Horst-Dieter Deelmann (Vors.), Matthias Heming, Christoph Tim Klose
HRB 9207, Amtsgericht Duisburg
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Re: [rules-users] Planner: What is a good example/algo to chain entities?
It sounds like a really interesting task that you are working on. But I've read this through a couple of times and I'm afraid (and I suspect I'm not alone) I don't really understand a lot of the terms you use. mvermand wrote The Tasks do not have to be grouped like a pillar but more like an accordion. -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Planner-What-is-a-good-example-algo-to-chain-entities-tp4022083p4022153.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Uploading JAR using REST
Thanks for your help. I'll take a look at that. -- View this message in context: http://drools.46999.n3.nabble.com/Uploading-JAR-using-REST-tp4022115p4022154.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Blaze to drools
That would depend very much on what kind of Blaze app you have. Usually, building a Blaze application is about building a rules management web site based on lots of code templates nested within other code templates. The rules engine itself is a very minor consideration. The corollary would be to use Guvnor, but I would say that it's a long way off being a one-for-one mapping. Much as I like Guvnor, it doesn't lend itself so well to building such a custom rules management app. It's more about doing things the Guvnor way, which non-technical users tend to find off-putting due to a lot of stuff which looks like code rather than plain English. That is unless you build your own web app in which you embed Guvnor components, or interact with the repository via REST. Much will depend on how much of the application has been built up with code templates, which do a lot of heavy lifting in the Blaze world. Blaze has very rich capabilities along those lines, making it possible to build simple-seeming decision tables, which do quite complex things underneath. Guvnor is starting to get similar functionality using BRL fragments in decision tables, but that's pretty new, and I would say that if the existing application makes heavy use of nested code templates, then you might struggle to get equivalent functionality in a Guvnor decision table. Likewise, the way Guvnor guided editor works with DSLs is a lot more simplistic than what Blaze provides, so again depending on the complexity of those code templates, what you can do in Guvnor may look rather clunky in comparison. In general, as a first step it's probably worth having a dig through the app to see how complex the code fragments are. If it has all been built using decision tables, with very little in the way of code fragments, it should be an easy transition. On a side note, I'm a bit curious what the reasoning is for doing such a re-write. Unless the plan is to run the application on the community supported Drools platform rather than JBPM, the cost of the license wouldn't be an issue. Similarly, although the community is growing, I don't get the impression that there is a very large supply of quality Drools consultants out there. Steve On 8 Feb 2013, at 09:59, starfish15 pooja.gh...@accenture.com wrote: Hello, We have a situation wherein we want to convert rules from Blaze into Drools. Basically closed to open source. I would highly appreciate if someone could guide me in this case. Regards, Starfish -- View this message in context: http://drools.46999.n3.nabble.com/Blaze-to-drools-tp4022151.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor-5.5
Sounds like a plan. I'll get stuck into it and write up the experiences. I suspect that anybody who's conservative enough to be locked into WAS is probably not going to be too keen to hit up 6.0 for a little while. So I'll have a go at 5.5 for now, as at least I know the Tomcat build is pretty stable and should be a decent starting point. If I have time I'll apply the same steps to 6.0 and see where they diverge (if at all). Any big differences between 5.5 and 6.0 that you can think of off-hand, which are likely to cause them to need different steps? I haven't had a look at the tech stack under 6.0 yet. Now I'm going to have to brush off my WAS skills. My JEE bloatware app server experience is mostly with WebLogic. :) On 7 Feb 2013, at 22:22, Michael Anstis michael.ans...@gmail.com wrote: Hi Stephen, We're asked how to run Guvnor on WebSphere quite often... if you fancy taking a look we can blog your achievements and you can take your place in history ;) Targeting 6.0 would add to the coolness - but might have less interest from others in the community. Cheers, Mike sent on the move On 7 Feb 2013 18:28, Stephen Masters stephen.mast...@me.com wrote: I guess that most folks who are tied into the WebSphere stack probably just go with JRules rather than Drools. Although FICO is also thoroughly usable in that stack. I'd probably recommend using Drools Expert within your application on WAS, and stick with running Guvnor on Tomcat, as it does't need to be part of a 'production' installation. However … is there much interest in getting Guvnor up and running on alternative app servers such as WAS/WebLogic/Glassfish? I intend to be unemployed for the next few weeks, and I was thinking of finding myself a little OS project to work on. :) Steve On 7 Feb 2013, at 15:23, Michael Anstis michael.ans...@gmail.com wrote: Drools Expert is just a Java library and should work on WebSphere as well as any other (to the best of my knowledge, but always happy to learn something new!) Guvnor is really the issue as we do not have an off the shelf distribution targeting WAS (not that we wouldn't want to, but nobody in the community has been prepared to work out what is required). IDK if RedHat Consulting would be able to advise on setting up Guvnor on WAS... but I'll forward this email to others who might know better. RedHat's certified BRMS does not contain the most recent features. With kind regards, Mike On 7 February 2013 15:03, Ricardo sprabak...@gmail.com wrote: ok, I understand your goal, what is your advise for the companies already using WAS server and wants to try drools expert and guvnor for rules engine POC . need to get certified version for POC too? is the certified version got all the latest futures? - with kind regards, -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-5-tp4022096p4022121.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
Damn, I can't! Simple rule rule TEST dialect mvel when s : String() then System.out.println(s); end Java Test StatefulKnowledgeSession s = ... s.insert(ONE); s.insert(TWO); s.fireAllRules(); s.dispose(); Output TWO What the...??? Using v5.4.0.Final -- View this message in context: http://drools.46999.n3.nabble.com/Evaluate-rules-for-multiple-facts-of-the-same-type-within-a-StateuflSession-tp4022157.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
Can you suggest a way to diagnose what's going wrong? I added DebugAgendaEventListener and DebugWorkingMemoryEventListener, but the output is too confusing for me -- View this message in context: http://drools.46999.n3.nabble.com/Evaluate-rules-for-multiple-facts-of-the-same-type-within-a-StateuflSession-tp4022157p4022159.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Ruleflow not working with stateless session in drools-server 5.5.0.Final
I am new to Drools and I am struggling with this ruleflow issue. Please let
me know if I have been posting this info to the wrong message board.
My situation is that I am working on converting our application from using
an expensive commercial rule engine to Drools. Our rule engine
implementation uses a stateless server and it heavily depends on ruleflows.
We could develop the rules using salience but that isn't ideal.
It seems to me that there is still a bug in drools-server when using
ruleflows in a stateless session. It seems that the fix for issue 2718
https://issues.jboss.org/browse/JBRULES-2718 partially fixed the
problem. There is an easy workaround if you are coding your solution in
Java. You just create a new instance of the Stateless session every time.
But in drools-server I don’t have any control over that.
tslonaker wrote
I found a much easier way to recreate the problem described in my previous
post. I believe I have also found the root cause of the problem. Below
are the steps to recreate the issue:
- Create a simple ruleflow and rules and compile them into a rule package.
- In code create a stateless session
- In a loop
o Create a fact
o Create a new execution batch with the following commands
- Insert the fact from above
- Start Process
- Fire All Rules
- Get Objects
o Execute the batch
o Check the results (number of rules that ran)
I posted before that the problem didn’t happen while executing locally
(not in drools server). I didn’t realize this before, but adding a loop
that executes the rules multiple times with the same session recreates the
problem.
Below is code that will recreate the issue. Notice that the code below
creates one instance of ksession and reuses it in the loop.
//Setup
KnowledgeBuilder kbuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder();
//The package includes the ruleflow
kbuilder.add( ResourceFactory.newFileResource(
(YourRulePackage_WithRuleflow.pkg) ), ResourceType.PKG );
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
*
//Create the stateless knowledge session outside the for loop
StatelessKnowledgeSession ksession =
kbase.newStatelessKnowledgeSession();
*
//Loop through executing the rules with the same data 3 times
for (int x = 0; x 3; x++)
{
//Create a new instance of the input fact
FactType inputDataType =
kbase.getFactType(SimpleRuleflowTest,
Input);
Object inputData = inputDataType.newInstance();
inputDataType.set(inputData, Name, Test data);
//Create a new instance of the command list
List cmds = new ArrayList();
cmds.add( CommandFactory.newInsert( inputData ));
cmds.add( CommandFactory.newStartProcess( TestRuleflow));
cmds.add( CommandFactory.newFireAllRules(rules));
cmds.add( CommandFactory.newGetObjects(output));
//Execute the rules
ExecutionResults results = ksession.execute(
CommandFactory.newBatchExecution( cmds ) );
//Get the number of rules that ran
Object rules = results.getValue(rules);
System.out.println(Rules that ran: + rules.toString());
}
Each iteration through the loop should fire 3 rules. Running the code
above you should get the following output:
Rules that ran: 3
Rules that ran: 1
Rules that ran: 1
I spent several hours researching the drools source code and I believe I
have found the problem. What I have found is related to
Issue 2718 https://issues.jboss.org/browse/JBRULES-2718
.
Check out the change made for this issue:
2718 fix
https://source.jboss.org/viewrep/Drools/drools-core/src/main/java/org/drools/impl/StatelessKnowledgeSessionImpl.java?r1=63021da325036ec6fbdf4019e8c8293db21555ecr2=fad9b951f44ac813e5faf50f097335c2a97007ae
.
Below is a snippet from the code that was modified for issue 2718. The
“if (!initialized)” block was added. The code loops through event
listeners on the wm object and adds them to the stateless session’s
listeners. This works fine for the first rule execution. But the next
rule execution creates a new instance for wm. Therefore it also creates
new instances of listeners for wm. So we have a new instance of wm and
the stateless session is pointing to the old listeners from the first
instance of wm. I believe that is why it only runs correctly one time. It
seems that that the “if (!initialized)” block of code needs to execute
every time newWorkingMemory() is called.
public StatefulKnowledgeSession newWorkingMemory() {
:
Re: [rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
I'll try to make it; in the meanwhile, do you find this meaningful? ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:1:30100654:78406:1:DEFAULT:ONE], getObject()=ONE, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:1:30100654:78406:1:DEFAULT:ONE], leftTuple=null, originOffset=-1, propagationNumber=3, rule=null, type=0]] ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:2:30649454:83500:2:DEFAULT:TWO], getObject()=TWO, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c, getPropagationContext()=PropagationContextImpl [activeActivations=1, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:2:30649454:83500:2:DEFAULT:TWO], leftTuple=null, originOffset=-1, propagationNumber=4, rule=null, type=0]] TWO ==[BeforeActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] ==[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] ==[AfterActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] Direct Line, l'assicurazione online con il famoso Telefono Rosso e il Mouse sulle Ruote. Nel 1985 Direct Line ha rivoluzionato il mercato nel Regno Unito lanciando per prima la vendita diretta di polizze auto. In Italia ha vinto nel 2008 il primo premio per i clienti piu' soddisfatti. www.directline.it RESTRICTED: This e-mail (including any linked or attached documents) is intended for the addressee/s only and may contain confidential, proprietary or legally privileged information. Please do not distribute further without prior permission from the author -- View this message in context: http://drools.46999.n3.nabble.com/Evaluate-rules-for-multiple-facts-of-the-same-type-within-a-StateuflSession-tp4022157p4022162.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
It appears you have a rule named CLEAR not included in the original post that's cancelling the activation that should println ONE, can you share this rule with us? On Fri, Feb 8, 2013 at 9:10 AM, pdario dario.piantan...@gmail.com wrote: I'll try to make it; in the meanwhile, do you find this meaningful? ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:1:30100654:78406:1:DEFAULT:ONE], getObject()=ONE, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:1:30100654:78406:1:DEFAULT:ONE], leftTuple=null, originOffset=-1, propagationNumber=3, rule=null, type=0]] ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:2:30649454:83500:2:DEFAULT:TWO], getObject()=TWO, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c, getPropagationContext()=PropagationContextImpl [activeActivations=1, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:2:30649454:83500:2:DEFAULT:TWO], leftTuple=null, originOffset=-1, propagationNumber=4, rule=null, type=0]] TWO ==[BeforeActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[AfterActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] Direct Line, l'assicurazione online con il famoso Telefono Rosso e il Mouse sulle Ruote. Nel 1985 Direct Line ha rivoluzionato il mercato nel Regno Unito lanciando per prima la vendita diretta di polizze auto. In Italia ha vinto nel 2008 il primo premio per i clienti piu' soddisfatti. www.directline.it RESTRICTED: This e-mail (including any linked or attached documents) is intended for the addressee/s only and may contain confidential, proprietary or legally privileged information. Please do not distribute further without prior permission from the author -- View this message in context: http://drools.46999.n3.nabble.com/Evaluate-rules-for-multiple-facts-of-the-same-type-within-a-StateuflSession-tp4022157p4022162.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
Actually, incorrect, I misread the output, sorry. On Fri, Feb 8, 2013 at 9:12 AM, Jeremy Ary jeremy@gmail.com wrote: It appears you have a rule named CLEAR not included in the original post that's cancelling the activation that should println ONE, can you share this rule with us? On Fri, Feb 8, 2013 at 9:10 AM, pdario dario.piantan...@gmail.com wrote: I'll try to make it; in the meanwhile, do you find this meaningful? ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:1:30100654:78406:1:DEFAULT:ONE], getObject()=ONE, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:1:30100654:78406:1:DEFAULT:ONE], leftTuple=null, originOffset=-1, propagationNumber=3, rule=null, type=0]] ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:2:30649454:83500:2:DEFAULT:TWO], getObject()=TWO, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c, getPropagationContext()=PropagationContextImpl [activeActivations=1, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:2:30649454:83500:2:DEFAULT:TWO], leftTuple=null, originOffset=-1, propagationNumber=4, rule=null, type=0]] TWO ==[BeforeActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] ==[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] ==[AfterActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c] Direct Line, l'assicurazione online con il famoso Telefono Rosso e il Mouse sulle Ruote. Nel 1985 Direct Line ha rivoluzionato il mercato nel Regno Unito lanciando per prima la vendita diretta di polizze auto. In Italia ha vinto nel 2008 il primo premio per i clienti piu' soddisfatti. www.directline.it RESTRICTED: This e-mail (including any linked or attached documents) is intended for the addressee/s only and may contain confidential, proprietary or legally privileged information. Please do not distribute further without prior permission from the author -- View this message in context: http://drools.46999.n3.nabble.com/Evaluate-rules-for-multiple-facts-of-the-same-type-within-a-StateuflSession-tp4022157p4022162.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
==[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] There's definitely something cancelling the activation, but it's not apparent to me right-out what's causing it based on the information provided so far. To Estaban's comment, would it be possible to share an isolated example as I can't help but to think there's something missing from what we've seen so far that would cause this to occur. On Fri, Feb 8, 2013 at 9:14 AM, Jeremy Ary jeremy@gmail.com wrote: Actually, incorrect, I misread the output, sorry. On Fri, Feb 8, 2013 at 9:12 AM, Jeremy Ary jeremy@gmail.com wrote: It appears you have a rule named CLEAR not included in the original post that's cancelling the activation that should println ONE, can you share this rule with us? On Fri, Feb 8, 2013 at 9:10 AM, pdario dario.piantan...@gmail.comwrote: I'll try to make it; in the meanwhile, do you find this meaningful? ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:1:30100654:78406:1:DEFAULT:ONE], getObject()=ONE, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c , getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:1:30100654:78406:1:DEFAULT:ONE], leftTuple=null, originOffset=-1, propagationNumber=3, rule=null, type=0]] ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:2:30649454:83500:2:DEFAULT:TWO], getObject()=TWO, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c , getPropagationContext()=PropagationContextImpl [activeActivations=1, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:2:30649454:83500:2:DEFAULT:TWO], leftTuple=null, originOffset=-1, propagationNumber=4, rule=null, type=0]] TWO ==[BeforeActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[AfterActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] Direct Line, l'assicurazione online con il famoso Telefono Rosso e il Mouse sulle Ruote. Nel 1985 Direct Line ha rivoluzionato il mercato nel Regno Unito lanciando per prima la vendita diretta di polizze auto. In Italia ha vinto nel 2008 il primo premio per i clienti piu' soddisfatti. www.directline.it RESTRICTED: This e-mail (including any linked or attached documents) is intended for the addressee/s only and may contain confidential, proprietary or legally privileged information. Please do not distribute further without prior permission from the author -- View this message in context: http://drools.46999.n3.nabble.com/Evaluate-rules-for-multiple-facts-of-the-same-type-within-a-StateuflSession-tp4022157p4022162.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] To group some objects by type
Mister Nono wrote ... only the last car is in the TreeMap Thats why I said /you need Lists or Maps as values of the TreeMap/. *Here is fast solution:* import Vehicle import java.util.* rule Print grouped vehicles when $map : Map() from accumulate ($v : Vehicle($w : wheels), init(TreeMap map=new TreeMap()), action( if(map.containsKey($w)) ((List)map.get($w)).add($v); else map.put($w, new ArrayList(Arrays.asList($v)));), result(map)) then System.out.println($map); end -- View this message in context: http://drools.46999.n3.nabble.com/To-group-some-objects-by-type-tp4022085p4022167.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Drools 5.2 - 5.5 problems
Hey everyone,
I have been running Drools 5.2 for a long time now and decided to try out
Drools 5.5 to see what was new. I felt that 5.2 was always a bit of a memory
hog so I was hoping that 5.5 would be better, however it seems to have
gotten worse. Previously I could run my company's test suite with -Xmx1024m
-XX:MaxPermSize=256m. Now I get:
[Error: Java heap space]
[Near : {... MyDomainObject != CE }]
^
[Line: 1, Column: 1]
at
org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:308)
at
org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)
at org.mvel2.MVEL.compileExpression(MVEL.java:810)
at
org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)
at
org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)
at
org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)
at
org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)
at
org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157)
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)
at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:141)
at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
at
org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
at
org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:311)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:847)
at
org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:269)
at
my.company.KnowledgeBaseStatelessRuleEngine.execute(KnowledgeBaseStatelessRuleEngine.java:48)
I incrementally increased the max heap size in steps of 500m to see when the
heap error would go away and I had to go all the way up to 4000m. Is it
common knowledge that Drools requires more memory since 5.5? Is there
anything our rules could possibly be doing wrong that the newer versions
don't like?
Once I do get the tests running, I am getting a lot of errors about a
comparison to a string with the value of null:
Exception executing consequence for rule SomeRule_39 in
my.company.user.rules: [Error: incompatible types in statement: class
java.lang.String (compared from: class
my.company.userdata.intermediate.numbers.TotalScore)]
[Near : {... this != null }]
^
[Line: 1, Column: 1]
at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
at
org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230)
at
my.company.commons.rules.util.KnowledgeBaseStatelessRuleEngine.execute(KnowledgeBaseStatelessRuleEngine.java:49)
Caused by: [Error: incompatible types in statement: class java.lang.String
(compared from: class my.company.userdata.intermediate.numbers.TotalScore)]
[Near : {... this != null }]
^
[Line: 1, Column: 1]
at org.mvel2.ast.BinaryOperation.init(BinaryOperation.java:84)
at org.mvel2.util.CompilerTools.finalizePayload(CompilerTools.java:118)
at
org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:287)
at
org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)
at org.mvel2.MVEL.compileExpression(MVEL.java:810)
at
org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)
at
org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)
at
org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)
at
org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)
at
Re: [rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
It's clear from the log that the first activation (ONE) is cancelled by some action in rule TEST, since the cancellation is bracketed between Before- and AfterActivationFired of the activation for TWO. I dislike the artificial creation of mysteries - as if we hadn't enough without. -W On 08/02/2013, Esteban Aliverti esteban.alive...@gmail.com wrote: Jeremy is right. In the log you can see 2 activations (one for each fact you insert), then the execution of one of the activations and then the cancellation of the other. How many rules do you have in your kbase? Is your rule as simple as the one you posted? Do you have more than just 1 condition in your LHS? Are you doing anything else other than the system.out in your RHS? Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Fri, Feb 8, 2013 at 4:17 PM, Jeremy Ary jeremy@gmail.com wrote: ==[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT: ONE] There's definitely something cancelling the activation, but it's not apparent to me right-out what's causing it based on the information provided so far. To Estaban's comment, would it be possible to share an isolated example as I can't help but to think there's something missing from what we've seen so far that would cause this to occur. On Fri, Feb 8, 2013 at 9:14 AM, Jeremy Ary jeremy@gmail.com wrote: Actually, incorrect, I misread the output, sorry. On Fri, Feb 8, 2013 at 9:12 AM, Jeremy Ary jeremy@gmail.com wrote: It appears you have a rule named CLEAR not included in the original post that's cancelling the activation that should println ONE, can you share this rule with us? On Fri, Feb 8, 2013 at 9:10 AM, pdario dario.piantan...@gmail.comwrote: I'll try to make it; in the meanwhile, do you find this meaningful? ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:1:30100654:78406:1:DEFAULT:ONE], getObject()=ONE, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c , getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:1:30100654:78406:1:DEFAULT:ONE], leftTuple=null, originOffset=-1, propagationNumber=3, rule=null, type=0]] ==[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ObjectInsertedEventImpl: getFactHandle()=[fact 0:2:30649454:83500:2:DEFAULT:TWO], getObject()=TWO, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c , getPropagationContext()=PropagationContextImpl [activeActivations=1, dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact 0:2:30649454:83500:2:DEFAULT:TWO], leftTuple=null, originOffset=-1, propagationNumber=4, rule=null, type=0]] TWO ==[BeforeActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] ==[AfterActivationFiredEvent: getActivation()=[Activation rule=TEST, act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO] ], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c ] Direct Line, l'assicurazione online con il famoso Telefono Rosso e il Mouse sulle Ruote. Nel 1985 Direct Line ha rivoluzionato il mercato nel Regno Unito lanciando per prima la vendita diretta di polizze auto. In Italia ha vinto nel 2008 il primo premio per i clienti piu' soddisfatti. www.directline.it RESTRICTED: This e-mail (including any linked or attached documents) is intended for the addressee/s only and may contain confidential, proprietary or legally privileged information. Please do not distribute further without prior permission from the author -- View this message in context: http://drools.46999.n3.nabble.com/Evaluate-rules-for-multiple-facts-of-the-same-type-within-a-StateuflSession-tp4022157p4022162.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list
Re: [rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
On Fri, Feb 8, 2013 at 12:47 PM, Wolfgang Laun wolfgang.l...@gmail.comwrote: I dislike the artificial creation of mysteries - as if we hadn't enough without. Who says it was artificially created?! ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] To group some objects by type
see expert documentation for *accumulate* -- View this message in context: http://drools.46999.n3.nabble.com/To-group-some-objects-by-type-tp4022085p4022173.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Ruleflow not working with stateless session in drools-server 5.5.0.Final
Hi Tim,
I know that you posted these through nabble, and it's not necessarily
propagating your message to the community. I have gotten a good response
by registering for the mailing list and sending messages directly to Rules
Users List rules-users@lists.jboss.org.
I am replying to your message through the rules-users mailing list - this
way everyone on the list will definitely see your post.
On Fri, Feb 8, 2013 at 9:08 AM, tslonaker tslonaker+dro...@gmail.comwrote:
I am new to Drools and I am struggling with this ruleflow issue. Please
let
me know if I have been posting this info to the wrong message board.
My situation is that I am working on converting our application from using
an expensive commercial rule engine to Drools. Our rule engine
implementation uses a stateless server and it heavily depends on ruleflows.
We could develop the rules using salience but that isn't ideal.
It seems to me that there is still a bug in drools-server when using
ruleflows in a stateless session. It seems that the fix for issue 2718
https://issues.jboss.org/browse/JBRULES-2718 partially fixed the
problem. There is an easy workaround if you are coding your solution in
Java. You just create a new instance of the Stateless session every time.
But in drools-server I don’t have any control over that.
tslonaker wrote
I found a much easier way to recreate the problem described in my
previous
post. I believe I have also found the root cause of the problem. Below
are the steps to recreate the issue:
- Create a simple ruleflow and rules and compile them into a rule
package.
- In code create a stateless session
- In a loop
o Create a fact
o Create a new execution batch with the following commands
- Insert the fact from above
- Start Process
- Fire All Rules
- Get Objects
o Execute the batch
o Check the results (number of rules that ran)
I posted before that the problem didn’t happen while executing locally
(not in drools server). I didn’t realize this before, but adding a loop
that executes the rules multiple times with the same session recreates
the
problem.
Below is code that will recreate the issue. Notice that the code below
creates one instance of ksession and reuses it in the loop.
//Setup
KnowledgeBuilder kbuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder();
//The package includes the ruleflow
kbuilder.add( ResourceFactory.newFileResource(
(YourRulePackage_WithRuleflow.pkg) ), ResourceType.PKG );
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
*
//Create the stateless knowledge session outside the for loop
StatelessKnowledgeSession ksession =
kbase.newStatelessKnowledgeSession();
*
//Loop through executing the rules with the same data 3 times
for (int x = 0; x 3; x++)
{
//Create a new instance of the input fact
FactType inputDataType =
kbase.getFactType(SimpleRuleflowTest,
Input);
Object inputData = inputDataType.newInstance();
inputDataType.set(inputData, Name, Test data);
//Create a new instance of the command list
List cmds = new ArrayList();
cmds.add( CommandFactory.newInsert( inputData ));
cmds.add( CommandFactory.newStartProcess( TestRuleflow));
cmds.add( CommandFactory.newFireAllRules(rules));
cmds.add( CommandFactory.newGetObjects(output));
//Execute the rules
ExecutionResults results = ksession.execute(
CommandFactory.newBatchExecution( cmds ) );
//Get the number of rules that ran
Object rules = results.getValue(rules);
System.out.println(Rules that ran: + rules.toString());
}
Each iteration through the loop should fire 3 rules. Running the code
above you should get the following output:
Rules that ran: 3
Rules that ran: 1
Rules that ran: 1
I spent several hours researching the drools source code and I believe I
have found the problem. What I have found is related to
Issue 2718 https://issues.jboss.org/browse/JBRULES-2718
.
Check out the change made for this issue:
2718 fix
https://source.jboss.org/viewrep/Drools/drools-core/src/main/java/org/drools/impl/StatelessKnowledgeSessionImpl.java?r1=63021da325036ec6fbdf4019e8c8293db21555ecr2=fad9b951f44ac813e5faf50f097335c2a97007ae
.
Below is a snippet from the code that was modified for issue 2718. The
“if (!initialized)” block was added. The code loops through event
listeners on the wm object and adds them to the stateless session’s
listeners. This works fine for the first rule execution. But the next
rule execution
Re: [rules-users] Found solution vs actual optimum [planner]
I ran the benchmarker and it's showing that I should be using simulated annealing. So that's useful info. I'm only getting 525-650 for the average calculate count per second though. (I didn't realize I could get it without the benchmarker until reading the docs again) I'm going through Score calculation performance tricks now, but I didn't see anything about the hardware used for the expected 1000 value. If my older laptop is sort of crappy( a Pentium(R)2.2GHz), that would explain the difference, correct? -- View this message in context: http://drools.46999.n3.nabble.com/Found-solution-vs-actual-optimum-tp4022027p4022175.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor-5.5
Hi Stephen, Guvnor 6.0 uses GWT2.5, Errai 2.2, UberFire and Seam (3, I think, but similarly to 5.5 for server-side CDI). Errai needs the most care but they provide settings for a lot of the common (open source) web-servers (not WebSphere). We have assemblies for Jboss AS 7 and Tomcat 7... one might provide a good starting point. As with 5.5 most issues relate to the correct exclusion of libraries bundled with the container. Anything you might be able to do will be warmly appreciated. Oh, and have a nice vacation ;) sent on the move On 8 Feb 2013 12:15, Stephen Masters stephen.mast...@me.com wrote: Sounds like a plan. I'll get stuck into it and write up the experiences. I suspect that anybody who's conservative enough to be locked into WAS is probably not going to be too keen to hit up 6.0 for a little while. So I'll have a go at 5.5 for now, as at least I know the Tomcat build is pretty stable and should be a decent starting point. If I have time I'll apply the same steps to 6.0 and see where they diverge (if at all). Any big differences between 5.5 and 6.0 that you can think of off-hand, which are likely to cause them to need different steps? I haven't had a look at the tech stack under 6.0 yet. Now I'm going to have to brush off my WAS skills. My JEE bloatware app server experience is mostly with WebLogic. :) On 7 Feb 2013, at 22:22, Michael Anstis michael.ans...@gmail.com wrote: Hi Stephen, We're asked how to run Guvnor on WebSphere quite often... if you fancy taking a look we can blog your achievements and you can take your place in history ;) Targeting 6.0 would add to the coolness - but might have less interest from others in the community. Cheers, Mike sent on the move On 7 Feb 2013 18:28, Stephen Masters stephen.mast...@me.com wrote: I guess that most folks who are tied into the WebSphere stack probably just go with JRules rather than Drools. Although FICO is also thoroughly usable in that stack. I'd probably recommend using Drools Expert within your application on WAS, and stick with running Guvnor on Tomcat, as it does't need to be part of a 'production' installation. However … is there much interest in getting Guvnor up and running on alternative app servers such as WAS/WebLogic/Glassfish? I intend to be unemployed for the next few weeks, and I was thinking of finding myself a little OS project to work on. :) Steve On 7 Feb 2013, at 15:23, Michael Anstis michael.ans...@gmail.com wrote: Drools Expert is just a Java library and should work on WebSphere as well as any other (to the best of my knowledge, but always happy to learn something new!) Guvnor is really the issue as we do not have an off the shelf distribution targeting WAS (not that we wouldn't want to, but nobody in the community has been prepared to work out what is required). IDK if RedHat Consulting would be able to advise on setting up Guvnor on WAS... but I'll forward this email to others who might know better. RedHat's certified BRMS does not contain the most recent features. With kind regards, Mike On 7 February 2013 15:03, Ricardo sprabak...@gmail.com wrote: ok, I understand your goal, what is your advise for the companies already using WAS server and wants to try drools expert and guvnor for rules engine POC . need to get certified version for POC too? is the certified version got all the latest futures? - with kind regards, -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-5-tp4022096p4022121.html Sent from the Drools: User forum mailing list archive at Nabble.comhttp://nabble.com/ . ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] How can I serialize a stateful KB in Drools Server ?
Can't find any entry point to serialize a stateful KB in Drools Server. I need to create periodic checkpoints of my stateful KB in case of a crash, or when I intentionally shutdown. Then I need to be able to reload it when bringing Drools Server back up. I can't find where any APIs for this are exposed. I do see how to do this running standalone Drools, it sesms like I should be able to access the same APIs? thanks -- View this message in context: http://drools.46999.n3.nabble.com/How-can-I-serialize-a-stateful-KB-in-Drools-Server-tp4022177.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
