Re: [rules-users] Distributed Drools
Matthew, regarding drools-mas, I would use this other repo: https://github.com/SocraticGrid/drools-mashttps://github.com/SocraticGrid/drools-mas. I did some changes there that are not present in droolsjbpm's one (I have to merge them back). I do think, though, that drools-mas is (currently) more suitable for a multi-agent scenario where each of the agents has a private and local working memory that is not shared among the others. drools-mas uses FIPA messages to handle the communication between the agents, but no real shared working memory is never used. Previous implementation of drools-mas used drools-grid to try to do something like this (distributed working memories), but this implementation was discarded after drools-grid was discontinued (it actually never passed the incubation period). Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Thu, Apr 24, 2014 at 4:39 AM, Daniel Souza danieldsouz...@gmail.comwrote: Hi Matt, This is the paper url available free from google: Rule-based Distributed and Agent Systems http://vsis-www.informatik.uni-hamburg.de/getDoc.php/publications/431/intro.pdf It's around 27 pages. Daniel -- View this message in context: http://drools.46999.n3.nabble.com/Distributed-Drools-tp4029338p4029342.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] Identical Facts over rules, results being cached?
The question here is: what is the result of fireAllRules()? Caching the result of this method is trivial: it's just a number! I think that what you need to build is your own ad-hoc cache that knows how to extract a 'result' out of the session an keep it handy. Implementing this mechanism shouldn't be that hard (at least for simple - no nested- Facts) and once you have it you can validate the benefits. Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Wed, Apr 9, 2014 at 11:02 AM, Leonard93 leonardlinde...@hotmail.comwrote: Wouldn't that depend on how long the data is being kept and how often identical rules are being fired? Or would you say the rule engine is faster than all the actions in between that it wouldnt matter? -- View this message in context: http://drools.46999.n3.nabble.com/Identical-Facts-over-rules-results-being-cached-tp4029169p4029172.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] Buggy query behavior in drools 5.6 and 6.1-SNAPSHOT ??
Let me see what I can do.
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Jan 23, 2014 at 12:18 AM, Davide Sottara dso...@gmail.com wrote:
Esteban, I have created a ticket for this with
an explanation of the weird behavior.
https://issues.jboss.org/browse/DROOLS-414
The problem is in QueryElementBuilder line#343.
It's an easy fix but I don't have time for it right now,
could someone look into it?
Thanks
Davide
On 01/22/2014 06:00 PM, Esteban Aliverti wrote:
Good catch Davide. I can confirm that not using nested accessors the query
works as expected.
Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Wed, Jan 22, 2014 at 6:57 PM, Davide Sottara dso...@gmail.com wrote:
Indeed, the use case can be simplified further:
package org.drools.test.bc;
declare Parent
attribute2 : String
end
declare Child
parentId : String
end
query getChildWithName( String $parentId, Child $child )
$child:= Child( parentId == $parentId )
end
rule Insert Children
when
then
Parent p1 = new Parent( a1 );
Child c1p1 = new Child( 1 );
insert( c1p1 );
insert( p1 );
end
rule Rule A
when
$p: Parent( $a2 : attribute2 )
?getChildWithName( $p.attribute2, $child;)
then
System.out.println(FOUND: + $child ++ $child.getParentId()
+ == + $p.getAttribute2() + ?? );
end
It has nothing to do with nested objects, @PR or modifications.
It seems that the culprit is the chained property accessor.
Davide
On 01/22/2014 02:22 PM, Esteban Aliverti wrote:
Hi guys,
I was writing some rules using backward chaining and found a strange
behavior.
I managed to isolate the error in the test project I'm attaching.
In the project I have 2 classes: Parent and Child
Parent:
* String id
* String attribute1
* String attribute2
* ListChild children
Child:
* String parentId;
* String name;
* String value;
In the test I'm creating 1 Parent object with just 1 child and then
inserting the Parent object into a drools session:
Parent p1 = new Parent();
p1.setId(1);
p1.setAttribute1(a1);
p1.setAttribute2(null);
Child c1p1 = new Child();
c1p1.setName(n1);
c1p1.setParentId(p1.getId());
c1p1.setValue(v1.1);
p1.addChild(c1p1);
kSession.insert(p1);
kSession.fireAllRules();
So far so good.
The rules I have in my session are the following:
declare Parent
@propertyReactive
end
query getChildWithName(String $parentId, String $name, Child $child)
$child:= Child(parentId == $parentId, name == $name)
end
rule Insert Children
when
$p: Parent()@watch(!*)
$c: Child() from $p.children
then
System.out.println(Inserting child +$c);
insert($c);
end
rule Rule A
when
$p: Parent(attribute2 != null)
?getChildWithName($p.attribute2, n1, $child;)
then
System.out.println(FOUND: +$child+. The attribute 'parentId' of
this object must have the value '+$p.getAttribute2()+'. Does it?
+$child.getParentId()+ == +$p.getAttribute2()+ ??);
globalList.add($child);
end
rule Copy Attribute1 into Attribute2
when
$p: Parent(attribute1 != null, attribute2 == null)
then
modify($p){
setAttribute2($p.getAttribute1())
}
end
The important part here is 'Rule A' and 'Copy Attribute1 into
Attribute2'. The latter copies the value of attribute1 to attribute2 for
any Parent object present in the session. (Note that the parent I'm
inserting has attribute2 = null). 'Rule A' is then using a query to get a
Child object that has a parent with id = $p.attribute2 (where $p is a
previously matched Parent).
Given that I only have 1 Parent in my session and that its id is '1' I
don't expect 'Rule A' to be activated/executed. When I modify
parent.attribute2 in 'Copy Attribute1 into Attribute2' I'm setting its
value to 'a1'. 'Rule A' (via the query) should then look for a Child with
parentid = 'a1' and It shouldn't find anything.
Funny thing is that 'Rule A' activates and fires. The child object that
is 'returned' by the query has a parentId of '1' so I don't know how this
behavior is possible. If you take a look at the System.out output you will
see that the activation makes no sense at all.
Am I doing something wrong in my project? Is this a bug? Is this the
expected behavior?
Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
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Re: [rules-users] Buggy query behavior in drools 5.6 and 6.1-SNAPSHOT ??
Good catch Davide. I can confirm that not using nested accessors the query
works as expected.
Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Wed, Jan 22, 2014 at 6:57 PM, Davide Sottara dso...@gmail.com wrote:
Indeed, the use case can be simplified further:
package org.drools.test.bc;
declare Parent
attribute2 : String
end
declare Child
parentId : String
end
query getChildWithName( String $parentId, Child $child )
$child:= Child( parentId == $parentId )
end
rule Insert Children
when
then
Parent p1 = new Parent( a1 );
Child c1p1 = new Child( 1 );
insert( c1p1 );
insert( p1 );
end
rule Rule A
when
$p: Parent( $a2 : attribute2 )
?getChildWithName( $p.attribute2, $child;)
then
System.out.println(FOUND: + $child ++ $child.getParentId() +
== + $p.getAttribute2() + ?? );
end
It has nothing to do with nested objects, @PR or modifications.
It seems that the culprit is the chained property accessor.
Davide
On 01/22/2014 02:22 PM, Esteban Aliverti wrote:
Hi guys,
I was writing some rules using backward chaining and found a strange
behavior.
I managed to isolate the error in the test project I'm attaching.
In the project I have 2 classes: Parent and Child
Parent:
* String id
* String attribute1
* String attribute2
* ListChild children
Child:
* String parentId;
* String name;
* String value;
In the test I'm creating 1 Parent object with just 1 child and then
inserting the Parent object into a drools session:
Parent p1 = new Parent();
p1.setId(1);
p1.setAttribute1(a1);
p1.setAttribute2(null);
Child c1p1 = new Child();
c1p1.setName(n1);
c1p1.setParentId(p1.getId());
c1p1.setValue(v1.1);
p1.addChild(c1p1);
kSession.insert(p1);
kSession.fireAllRules();
So far so good.
The rules I have in my session are the following:
declare Parent
@propertyReactive
end
query getChildWithName(String $parentId, String $name, Child $child)
$child:= Child(parentId == $parentId, name == $name)
end
rule Insert Children
when
$p: Parent()@watch(!*)
$c: Child() from $p.children
then
System.out.println(Inserting child +$c);
insert($c);
end
rule Rule A
when
$p: Parent(attribute2 != null)
?getChildWithName($p.attribute2, n1, $child;)
then
System.out.println(FOUND: +$child+. The attribute 'parentId' of
this object must have the value '+$p.getAttribute2()+'. Does it?
+$child.getParentId()+ == +$p.getAttribute2()+ ??);
globalList.add($child);
end
rule Copy Attribute1 into Attribute2
when
$p: Parent(attribute1 != null, attribute2 == null)
then
modify($p){
setAttribute2($p.getAttribute1())
}
end
The important part here is 'Rule A' and 'Copy Attribute1 into
Attribute2'. The latter copies the value of attribute1 to attribute2 for
any Parent object present in the session. (Note that the parent I'm
inserting has attribute2 = null). 'Rule A' is then using a query to get a
Child object that has a parent with id = $p.attribute2 (where $p is a
previously matched Parent).
Given that I only have 1 Parent in my session and that its id is '1' I
don't expect 'Rule A' to be activated/executed. When I modify
parent.attribute2 in 'Copy Attribute1 into Attribute2' I'm setting its
value to 'a1'. 'Rule A' (via the query) should then look for a Child with
parentid = 'a1' and It shouldn't find anything.
Funny thing is that 'Rule A' activates and fires. The child object that is
'returned' by the query has a parentId of '1' so I don't know how this
behavior is possible. If you take a look at the System.out output you will
see that the activation makes no sense at all.
Am I doing something wrong in my project? Is this a bug? Is this the
expected behavior?
Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
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Re: [rules-users] bound variable scope
Variable e scope is the accumulate. You can't use it outside. But think about it for a second, when your rule is activated, variable e (if it would be possible to access it from the RHS) will have at least 6 different values. Which value do you want to use? One possible (of many) solution could be to 'collect' all your events instead of counting them: rule Reset alarm when a : Alarm() c : Set( size 5) from accumulate ( e : Event( level 6) over window:time(10s) from entry-point queue, collectSet(e) ) then //All the Event objects matching the LHS are going to be in the set. channels[reset].send(Alarm resolved.); end Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Tue, Nov 5, 2013 at 11:38 PM, webfrank webfr...@tiscali.it wrote: Hi, I have a rule with a from accumulate where I bind e variable to Event object. I would like to pass e to send method of channel like: channels[reset].send(e); but I got a Rule Compilation error with: e cannot be resolved. Why I cannot access variable e when defined inside from accumulate? rule Reset alarm when a : Alarm() c : Number( intValue 5) from accumulate ( e : Event( level 6) over window:time(10s) from entry-point queue, count(e) ) then channels[reset].send(Alarm resolved.); end -- View this message in context: http://drools.46999.n3.nabble.com/bound-variable-scope-tp4026652.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] why define the returnedProcessor twice
Where did you get that code from? That shouldn't even compile!
I've checked both in 5.2 and 6.0 and I couldn't find the code you are
showing:
5.2:
https://github.com/droolsjbpm/droolsjbpm-integration/blob/5.2.x/drools-camel/src/main/java/org/drools/camel/component/DroolsPolicy.java#L86
6.0:
https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/drools-camel-legacy5/src/main/java/org/drools/camel/component/DroolsPolicy.java#L67
Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Oct 17, 2013 at 11:37 AM, scarlettxu xu_han...@163.com wrote:
Hi Expert,
I am a new guy to drools rules and studying the drools camel server now.
And I see in the DroolsPolicy class located in project
drools-camel-5.2.0.Final , it define the returnedProcessor twice
public Processor wrap(RouteContext routeContext, Processor processor)
{
RouteDefinition routeDef = routeContext.getRoute();
ToDefinition toDrools = getDroolsNode(routeDef);
*Processor returnedProcessor;
Processor returnedProcessor;*
if (toDrools != null) {
returnedProcessor = new DroolsProcess(toDrools.getUri(), processor);
}
else {
returnedProcessor = processor;
}
return returnedProcessor;
}
I wonder is it for special purpose ?
As I checked from version 5.2.0 Final to 6.0.0RC3
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Re: [rules-users] How does drools provides an explanation of how the solution was arrived?
Let me add that you can also use a custom AgendaEventListener to keep track of all the rules that were executed. Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Fri, Oct 4, 2013 at 10:20 AM, rjr201 rich.j.ri...@gmail.com wrote: This is a statement about the nature of rules engines in general. Rules engines are made up of human readable rules, as opposed to say a neural network where the knowledge isn't explicitly represented (it's a big black box of maths). A rules engine is symbolic, a neural network sub-symbolic. A neural network can give you an answer, but not a justification of why. People like rules engines because (when done properly) they can see why it has given the answer it has given. To answer your question, to get a explanation of what the rules engine did, you could insert a logging object as a global into your rules session and then add a log statement in the conclusion of each rule. -- View this message in context: http://drools.46999.n3.nabble.com/How-does-drools-provides-an-explanation-of-how-the-solution-was-arrived-tp4026253p4026263.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] how to check difference between two .pkg files
Just one more thing: Guvnor doesn't compare the binary packages, it uses the data stored in its repository to do this. So, just like Zahid said, Guvnor uses JCR to compare 2 different versions of the same package. Doing a binary comparison is not an easy thing. You can take this class as a starting point ( https://github.com/droolsjbpm/drools/blob/5.6.x/drools-core/src/main/java/org/drools/agent/impl/BinaryResourceDiffProducerImpl.java), but be sure that it doesn't implement all possible cases. Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Tue, Sep 10, 2013 at 6:07 AM, Zahid Ahmed zahid.ah...@emirates.comwrote: Hi, It depends which version of Guvnor u r using. If its 5.x then, there are two ways to do this; 1. Use guvnor provided REST interface to get information related to packages. 2. Use JackRabbit API to directly access the repository as Guvnor 5.x uses JackRabbit as the assets repository. Regards, Zahid Ahmed -Original Message- From: rules-users-boun...@lists.jboss.org [mailto: rules-users-boun...@lists.jboss.org] On Behalf Of maunakea Sent: 09 September 2013 20:38 To: rules-users@lists.jboss.org Subject: [rules-users] how to check difference between two .pkg files I have 2 .pkg files that are 2 snapshots for the same package from 2 different Guvnor instances. The 2 Guvnor instances are prod and test. I see that within Guvnor, it can show diff between 2 snapshots in its repository. If Guvnor can do it, there must be some API that I can use outside in a standalone program to compare between .pkg file. Anybody knows how to do this? thanks -- View this message in context: http://drools.46999.n3.nabble.com/how-to-check-difference-between-two-pkg-files-tp4025877.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
Re: [rules-users] Question on From Collect
This is a tricky one. When I added this feature to Guvnor, Guvnor automatically imported some classes like java.util.List, java.util.Set, etc. Some time later, these automatically imported classes where removed and you have to manually add their imports in the package configuration. So, if you want to have the 'missing' methods for Lists and Sets, you just need to import those classes in the package you are working on. Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Mon, Jul 29, 2013 at 5:33 PM, Wolfgang Laun wolfgang.l...@gmail.comwrote: On 29 July 2013 15:55, IPatel ishita.pa...@usbank.com wrote: Hi, The below blog shows me how to use From Collect option on LHS. http://ilesteban.wordpress.com/2010/05/28/guvnor-guided-editor-suuport-for-fromcollectaccumulate-elements/ However when i try to use the set option. I do not get the option of Size. The blog is from Esteban . Here is the use case. I have a class which contains a list of objects (transcations). All i am trying to do is fetch that list in my LHS so when the list is available other rules can be applied. If an object of this class already contains a list you don't need from collect whose purpose is the composition of a list, to be made up from individual objects here and there. -W Thank you, Isha -- View this message in context: http://drools.46999.n3.nabble.com/Question-on-From-Collect-tp4025184.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
Re: [rules-users] Iterating string objects inside Arraylist
Hi,
Drools supports 'contains' and 'member of' operators. You can find more
information about them in the documentation.
Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Wed, Jul 17, 2013 at 7:49 AM, Ganesh R. ganesh_...@infosys.com wrote:
I am a novice in Drools, sorry if this question is trivial and has
already been discussed. I couldn’t find the direct method for implementing
the below behavior.
** **
I have a class like this.
** **
public class Account {
public int balance;
public String id;
public ListString types;
// getter setters
}
** **
I am trying to check the following:
Accounts having balance greater than $100 and types containing both
Savings and Checking.
** **
// Creating sample Facts in Java main
Account account = new Account();
account.setBalance(100);
account.setId(A1);
ListString temp = new ArrayListString();
temp.add(Savings);
temp.add(Checking);
account.setTypes(temp);
** **
// Creating rules
** **
rule Sample
** **
when
bat : Account(balance == 100)
then
if (bat.getTypes().contains(Savings)
bat.getTypes().contains(Checking)){
System.out.println(I got this);
}
end
** **
Is there more proficient ways to do this?? like checking the contents of
the arraylist (types as per the above example) in rule i.e. in when
instead of doing it in then ??
** **
Much appreciate your answers.
Thank you!
** **
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Re: [rules-users] Unexpected, Unclear, Unperiodic error
Are the admin module and user module running in the same box? Can you access the package's URL from user's side? The error is clear, the kagent is getting a HTTP-502 error when it tries to read the package binary. Maybe a network configuration issue? Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Wed, May 15, 2013 at 7:10 AM, abhinay_agarwal abhinay_agar...@infosys.com wrote: I have a piece of code which builds the kbase, when i run it from my local system as a java application with guvnor deployed, the code works fine. When i try and access from the admin module, it calls the same method readKnowledgeBase(), it works. But, when i call the same piece of code (the same method readKnowledgeBase()) from user module, no extra parameter, the same changeset is being used, it throws the following exception. java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:796) at org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1103) at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:844) at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:684) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:207) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:186) at com.infosys.fps.drools.adapter.DroolsAdapter.readKnowledgeBase(DroolsAdapter.java:58) at com.infosys.fps.feecommission.helper.GoalFeeCommissionHelper.calculateFee(GoalFeeCommissionHelper.java:189) at com.infosys.fps.feecommission.helper.GoalFeeCommissionHelper.processFee(GoalFeeCommissionHelper.java:167) at com.infosys.fps.feecommission.helper.GoalFeeCommissionHelper.processFeeCalculation(GoalFeeCommissionHelper.java:126) at com.infosys.fps.feecommission.helper.GoalFeeCommissionHelper.chargeGoalCreation(GoalFeeCommissionHelper.java:77) at com.infosys.fps.feecommission.helper.GoalFeeCommissionHelper.chargeFee(GoalFeeCommissionHelper.java:55) at com.infosys.fps.client.goal.service.EduGoalNeedsService.saveEducationNeeds(EduGoalNeedsService.java:932) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) at $Proxy57.saveEducationNeeds(Unknown Source) at com.infosys.fps.client.goal.delegate.EducationGoalDelegate.saveEducationNeeds(EducationGoalDelegate.java:217) at com.infosys.fps.client.goal.controller.EduGoalNeedsController.saveAfterGoalId(EduGoalNeedsController.java:865) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923
Re: [rules-users] Use of the binding variable
What you have described is half of the usage of binding variables. You can bind a variable to a fact or to individual fields of a fact. You can then use those variables in the LHS or the RHS of your rules. For example: 1.- Find different Person objects when $p1: Person($name1: name) $p2: Person($name2: name, *this != $p1*) then System.out.println(Found +$p1+ with name '+$name1+' and +$p2+ with name '+$name2+'); end Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Thu, May 9, 2013 at 3:08 PM, IPatel ishita.pa...@usbank.com wrote: Hi, I am having little bit difficulty in understanding binding variable concept in the guvnor. During our POC a business user asked me question around this and i was able to save myself by telling them that the binding variable is used in case you want use the fact again in Then statement. (This is how i see it in the examples of rules). Can anyone please explaining me the real use of the binding variable so that i can help my business partner understand it properly? Thank you for your help in advance Isha -- View this message in context: http://drools.46999.n3.nabble.com/Use-of-the-binding-variable-tp4023744.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] Comparing KnowledgePackages for Equality
The old knowledge agent did something similar to what you are looking for. Maybe you could take a look at its implementation and reuse some of the code: https://github.com/droolsjbpm/drools/blob/5.5.x/drools-core/src/main/java/org/drools/agent/impl/BinaryResourceDiffProducerImpl.java Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Thu, Mar 21, 2013 at 2:27 PM, gqmulligan gqmulli...@gmail.com wrote: Thanks for the suggestion Wolfgang. The problem is that hibernate does serialize the packages to compare the bytes and they are still somehow different. I also felt like I did a test before where I read a serialized package from the database, serialized it again, and the bytes were different from the original. I will test this again to be sure. Thanks. -- View this message in context: http://drools.46999.n3.nabble.com/Comparing-KnowledgePackages-for-Equality-tp4022952p4022967.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] Custom UI to create rules and inserting them via REST API
As far as I know, there is no API for DRL creation. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Mon, Jan 28, 2013 at 2:32 PM, benq2188 bengisag...@gmail.com wrote: Esteban thanks for the quick reply, so in this case my question is, which object is the key in the API to create .drl rule ? Should I create RuleModel? Also how can I store that .drl via POST method of the REST? Regards, Bengi. Esteban wrote If you are not planning to use Guvnor to author your rules, there is no need to store them in BRL format. You can store your rules as 'technical rules' directly. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Mon, Jan 28, 2013 at 2:10 PM, benq2188 lt; bengisaglam@ gt; wrote: Hi everyone, I would like to implement an Expert System which I can have my own UI to generate user defined rules, and I am planning to use REST API to insert/update/delete the rules,which are in the guvnor repository. Inside the guvnor, I would like to store my rules in .drl format. So I was wondering two thing: - Is that possible to create a brl file in XStream xml format as output of the UI, and store it in the repository as .drl format?. (I know the conversion from .brl to .drl is possible by using BRDRLPersistance object.) If it is possible then which object is the key point to create it from the package org.drools.ide.common.client.modeldriven.brl? -Another problem, by using REST API I can update and retrieve an asset in text/plain format, however I could not succeed to insert new asset into repository by using POST method. So how can I insert a new .drl rule into repository via REST. I will appreciate if you have some sample code for any of them and will be greatful for any help, Thanks, Bengi. -- View this message in context: http://drools.46999.n3.nabble.com/Custom-UI-to-create-rules-and-inserting-them-via-REST-API-tp4021848.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users -- View this message in context: http://drools.46999.n3.nabble.com/Custom-UI-to-create-rules-and-inserting-them-via-REST-API-tp4021848p4021851.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] form of accumulate in examples is depricated?
There are currently 3 ways to write your accumulate pattern in drools: 1. The way you have pointed out containing all the different sections: init, action, reverse and result. The problem with this syntax is that you have to embed java code in your rules making them hard to read and maintain. Following this syntax, if you want to reuse an accumulate function you have to copy and paste it. This form of accumulate is highly discouraged by drools team. 2. Use some of the predefined accumulate functions like sum(), avg(), count(), etc. 3. If the predefined set of accumulate functions is not enough you can create your accumulate function in a Java class and then register it in drools and use it in your DRL. Please refer to the documentation for further information. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Tue, Jan 22, 2013 at 10:04 AM, Michiel Vermandel mverm...@yahoo.comwrote: Hi, In lots of rules in the drools planner examples the accumulate function is used in this way: rule requiredCpuPowerTotal when $computer : CloudComputer($cpuPower : cpuPower) $requiredCpuPowerTotal : Number(intValue $cpuPower) from accumulate( CloudProcess( computer == $computer, $requiredCpuPower : requiredCpuPower), sum($requiredCpuPower) ) then insertLogical(new IntConstraintOccurrence(requiredCpuPowerTotal, ConstraintType.NEGATIVE_HARD, $requiredCpuPowerTotal.intValue() - $cpuPower, $computer)); end (example from cloudBalancing). Though, documentation says ( http://docs.jboss.org/drools/release/5.5.0.Final/drools-expert-docs/html_single/#d0e6921) one should this syntax: result pattern from accumulate( source pattern, init( init code ), action( action code ), reverse( reverse code ), result( result expression ) ) Does this mean that the axemples could be optimized and that I should go for that syntaxt as well rather than using the syntax like rule requiredCpuPowerTotal ? Thanks - 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
Re: [rules-users] Guvnor 5.5 being WIERD
Maybe a screenshot of Guvnor's editor might help. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Thu, Jan 17, 2013 at 12:01 PM, starfish15 pooja.gh...@accenture.comwrote: Manstis, If you notice the code written to execute the rules, you will find the Dummy object being added. That inserts the fact in the working memory of the rules i beleive. And hence it shud have been available in the Condition Facts also when i tried to add that. My Model.jar has all the three Facts in them. However, i always got only class, class1. Dummy was never received. Regards, Starfish -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-5-being-WIERD-tp4021569p4021603.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] How are rules imported into the knowledgebuilder?
String rules = ...; KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add(ResourceFactory.newByteArrayResource(rules.getBytes()), ResourceType.DRL); You may also use .newInputStreamResource(), .newReaderResource() or .newURLResource() Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Wed, Jan 16, 2013 at 11:33 AM, Bojan Janisch bojan.jani...@scai.fraunhofer.de wrote: Hello everybody, the problem that I'm facing right know is, that I want to create rules from a program and (without writing it to file) loading it into the knowledgebuilder. So does anybody know how I can load a rule into the knowledgebuilder without using a file? Thanks to everyone who reads this. Bojan ___ 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] Hello and my first question
You can take a look at 'Conditional named consequences' to see if that is what you need: http://docs.jboss.org/drools/release/5.5.0.Final/droolsjbpm-introduction-docs/html_single/#releaseNotes_5.5.0_Expert Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Mon, Jan 14, 2013 at 11:45 AM, Bojan Janisch bojan.jani...@scai.fraunhofer.de wrote: Hello everybody, this is my first post and also my first question to you. I've searched the net for quite some hours now, but don't get any information regarding optionally conditions. I'm using drools to annotate some textobjects and I'm stucking with the following rule: When there are two named entities, one body side and one anatomy in a text (they're defined earlier by a textannotating system, so I'm working on annotated objects) and there is a optionally anatomic side (it contains generally something like lateral oder medial and so on), then generate me a new annotation. So up to now I'm on this state: Rule Anatomic Side when $NE1 : NE(Type.contains(body)) $NE2 : NE(Type.contains(anatomy)) //So here starts the problem [$NE3 : NE(Type.contains(anatomic))] then ... How can I set a condition as optionally or is there no such way? Thanks everyone to who reads this. Janisch ___ 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] Listen event in different package
According to the code you have shown, OtherItem is not defined as an @role(event) but you are using it to do time-related comparisons. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Fri, Jan 11, 2013 at 12:59 PM, Wolfgang Laun wolfgang.l...@gmail.comwrote: Add two declare ... @role(event) end to listener.drl. -W On 11/01/2013, Marco Malziotti marco.malzio...@trs.it wrote: Hello I am a beginner in Drools 5.1.1 and try to listen a event in a packageX inserted by a rule in another packageY. I have following 2 drl file : ---inserter.drl package packageY import internal.event.*; declare EventItem @role (event) end rule insert EventItem when ... then EventItem ei = new EventItem(...); insert(ei); end ---listener.drl--- package packageX import internal.event.*; rule listen EventItem temporal constraint when ei: EventItem() oi: OtherItem(this after ei) then System.out.println(Hello word); end EventItem and OtherItem are defined in 'internal.event' package. If I run with a StatefulKnowledgeSession configured in 'pseudo clock', I have following stack trace: java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:322) at org.drools.rule.VariableRestriction.isAllowedCachedRight(VariableRestriction.java:117) at org.drools.rule.VariableConstraint.isAllowedCachedRight(VariableConstraint.java:121) at org.drools.common.SingleBetaConstraints.isAllowedCachedRight(SingleBetaConstraints.java:151) at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:125) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:190) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:145) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1174) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1123) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:917) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:251) ... Moving listener.drl in packageY, all works. I don't know if it is already open a related issue, perhaps the : https://issues.jboss.org/browse/JBRULES-2774 Thanks for your attention. Regards. Marco Malziotti Tecnologie nelle Reti e nei Sistemi T.R.S. S.p.A. Integration Test Engineer Tel. + 39 06.87281.407 Fax. + 39 06.87281.550 E-mail: marco.malzio...@trs.it Tecnologie nelle Reti e nei Sistemi T.R.S. SpA Via della Bufalotta, 378 - 00139 Roma Tel +39.06.87.28.1.1 - Fax +39.06.87.28.1.550 --- Ai sensi del D.Lgs. 196/2003 si precisa che le informazioni contenute in questo messaggio sono riservate ed a uso esclusivo del destinatario. Qualora il messaggio in parola Le fosse pervenuto per errore, la preghiamo di eliminarlo senza copiarlo e di non inoltrarlo a terzi, dandocene gentilmente comunicazione. Grazie. This message, for the law 196/2003, may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation. --- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ 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
Re: [rules-users] Correlating 2 independent streams of events
Thanks Wolfgang. I was trying to solve the whole situation with just 1 rule, but not I'm trying to separate the problem in multiple rules. There are some bugs/language-limitations/programmer-skills-limitations that are preventing me to get the expected results though. Let's say I have a rule identifying my last 3 EventA (ALL my facts are declared as events): declare Last3A @role(event) firstEvent: EventA lastEvent: EventA end rule 'Detect last 3' when //some magic using sliding windows then //$firstEventA and $lastEventA are the bounds identified in the LHS of the rule. //EventA class doesn't have an explicit timestamp (drools is providing it) and I'd prefer to leave it that way. insert (new Last3A($fistEventA, $lastEventA)); end Then I have my rule trying to get the occurences of EventB that happen during a Last3A rule 'Get EventBs' when $l: Last3A() //originally, I've used a collect here since I wanted a single activation, but I'll use a single event here just to make syntax cleaner. EventB(this after $l.firstEvent,this before $l.lastEvent) then ... end If I try the latter rule, after I insert the third EventA (I'm calling fireAllRules() after each insertion) I get the following exception: *Exception executing consequence for rule Detect last 3 in com.whatever: java.lang.ClassCastException: com.whatever.EventA cannot be cast to java.lang.Number* *...* *Caused by: java.lang.ClassCastException: **com.whatever.EventA** cannot be cast to java.lang.Number * *at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedLeft(AfterEvaluatorDefinition.java:341) * I'm assuming Drools is trying to cast the result of $l.firstEvent into a number (probably because it is expecting a timestamp) even though the result is already an Event. In order to avoid the $l.firstEvent and $l.lastEvent invocations I re-wrote the rule as follows (is ugly, I know): rule 'Get EventBs' when $l: Last3A() $firstEvent: EventA() from $l.getFirstEvent() $lastEvent: EventA() from $l.getLastEvent() EventB(this after $firstEvent,this before $lastEvent) then ... end The exception now is: *Exception executing consequence for rule **Detect last 3** in com.cognitive.nsf.management: java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle* * * What is happening now is that Drools doesn't realize that the object I'm using for after and before are actually Events. So it seems that temporal operators can only be used with events coming from the same rule (and not coming from a 'from' or any other black box). I'll continue digging on this, but it seems that the only solution will be to use explicit time stamps and then use them instead of the events in my marker fact. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Mon, Jan 7, 2013 at 12:17 PM, Wolfgang Laun wolfgang.l...@gmail.comwrote: Use wrapper or marker facts to identify the last three EventA's and a rule to push EventA's through these markers. Then, a simple rule will give you all EventBs between the extremes of the marker set. Take care to get the start-up right ;-) -W On 07/01/2013, Esteban Aliverti esteban.alive...@gmail.com wrote: Let's say I have two independent streams of different events: EventA and EventB. Which is the best way to get all the occurrences of EventB that happened between the last 3 occurrences of EventA? For example: from: $b1:EventB, $a1:EventA, $b2:EventB, $b3:EventB, $a2:EventA, $b4:EventB, $b5:EventB, $a3:EventA, $b6:EventB I would like to get $b2, $b3, $b4, $b5 Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.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 rule validation using Java Code?
You can get the whole source code of the pkg (drl) an the model (jar) from Guvnor using rest and then you could try to compile the package in your app using Drools APIs. That is what Guvnor does. Best regards, On Jan 2, 2013 8:59 AM, arup arup4u2...@gmail.com wrote: Thanks for your replies. Here is my requirement. We are developing an application where we can interact with Guvnor using REST API. We will use this application only to manage rules not the Guvnor. Now is there any way to validate the rules or validate the whole package as we do in Guvnor while building the package? For now I have created few methods to check the syntax errors in a rule. But I need drools based validation. like validating a rule depending on it's Pojo model, validating import and global, rule condition and action parts etc. just as we do in IDE by clicking validate. -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-rule-validation-using-Java-Code-tp4021291p4021329.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] Writing a rule to find a fact that has a minimum value
rule 'Smallest city' when $smallCity: City() not City(population $smallCity.population) then System.out.println(This is the smallest city: +$smallCity); end Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Wed, Dec 19, 2012 at 4:20 PM, David R Robison drrobi...@openroadsconsulting.com wrote: I want to write a rule that will select a fact that has the minimum value for an attribute. For example, find the city that has the minimum population. How would I write such a rule? David -- David R Robison Open Roads Consulting, Inc. 103 Watson Road, Chesapeake, VA 23320 phone: (757) 546-3401 e-mail: drrobi...@openroadsconsulting.com web: http://openroadsconsulting.com blog: http://therobe.blogspot.com book: http://www.xulonpress.com/bookstore/bookdetail.php?PB_ISBN=9781597816526 This email communication (including any attachments) may contain confidential and/or privileged material intended solely for the individual or entity to which it is addressed. If you are not the intended recipient, please delete this email immediately. ___ 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] Executing more than one rules having no infinite execution
Using drools.halt() is not considered a good practice at all. I would
recommend you to read this post:
http://ilesteban.wordpress.com/2012/11/16/about-drools-and-infinite-execution-loops/
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Fri, Dec 7, 2012 at 8:59 AM, Hushen Savani
hushen.sav...@elitecore.comwrote:
Hi,
** **
I have a simple rule as following:
** **
*import java.util.HashMap;*
* *
*rule first*
*when*
* a : CrestelRuleModel( $hmap : singleHashMap!=null);*
*then*
* System.out.println(Old Map: + $hmap);*
* HashMap mapp = new HashMap();*
* mapp.put(hello, world);*
* a.setSingleHashMap(mapp);*
* System.out.println(New Map: + a.getSingleHashMap());*
* update(a);*
*end;*
** **
When I invoke the rule from my client, the rule is executed *infinitely*.*
***
** **
So, I have placed a “*drools.halt()*” before “*end*” statement of above
rule. So, it stopped executing infinitely as I wanted. But *is it a good
practice?*
** **
Now, I want my input to be filtered by *two rules*, so I have placed
rules like following:
** **
*import java.util.HashMap;*
* *
*rule first*
*when*
* a : CrestelRuleModel( $hmap : singleHashMap!=null);*
*then*
* System.out.println(Old Map: + $hmap);*
* HashMap mapp = new HashMap();*
* mapp.put(hello, world);*
* a.setSingleHashMap(mapp);*
* System.out.println(New Map: + a.getSingleHashMap());*
* update(a);*
* drools.halt();*
*end;*
* *
*rule second*
*when*
* b : CrestelRuleModel( $hmap2 : singleHashMap!=null);*
*then*
* System.out.println(Old Map2: + $hmap2);*
* HashMap mapp2 = new HashMap();*
* mapp2.put(hello2, world2);*
* b.setSingleHashMap(mapp2);*
* System.out.println(New Map2: + b.getSingleHashMap());*
* update(b);*
* drools.halt();*
*end;*
** **
But in above case, *only the “second” rule executes*. What to do in
order to execute both the rules without any infinite loop?
** **
Kindly share some pointers on this. Thanks.
** **
** **
*PS*: *CrestelRuleModel* is my POJO model having following fields,
* *
*public* *class* CrestelRuleModel {
*private* *ArrayList* arrayListOfHashMap;
*private* *HashMap* singleHashMap;
*private* Object object;
*private* String remarks;
** **
//Getters and Setters
** **
}
** **
Best Regards
*Hushen Savani* | Crestel Billing
[image: ecTag]
** **
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Re: [rules-users] A basic doubt about Drools Fusion
It could be the case, and I'm guessing here, that the AgendaEventListener
is called just before the activation is placed into the agenda. So, the
call to fireAllRules() finds an empty agenda. What you could do to check if
this is what is happening, is to insert 2 EvenA objects. The second call of
fireAllRules() should fire the activation of the first object (and you will
miss the activation of the second).
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Fri, Dec 7, 2012 at 1:55 PM, Adrián Paredes
adri...@epidataconsulting.com wrote:
Hi all:
I have a very basic doubt about Drools Fusion.
I have two simple Java classes:
EventA {
String id;
Date timestamp;
Long duration;
}
EventB {
String id;
Date timestamp;
Long duration;
}
I have a DRL file, where I declare this two classes as Events:
declare EventA
@role(event)
@timestamp(timestamp)
@duration(duration)
end
declare EventB
@role(event)
@timestamp(timestamp)
@duration(duration)
end
I have a simple rule:
rule Basic Rule
dialect 'mvel'
when
$eventA: EventA($aId: id) from entry-point time stream
then
System.out.println(Event A + $aId + at + $eventA.timestamp);
end
Finally, I have a test that starts a StatefulKnowledgeSession in STREAM
mode, register an eventLister in the session in order to fire the rules
when an event arrives:
ksession.addEventListener(new DefaultAgendaEventListener() {
@Override
public void activationCreated(ActivationCreatedEvent event) {
((StatefulKnowledgeSession)
event.getKnowledgeRuntime()).fireAllRules();
}
});
And then the test insert in the time stream entry-point an instance of
EventA with duration of 10 miliseconds, as follows:
EventA eventA = new EventA();
eventA.setId(123);
eventA.setTimestamp(new Date());
eventA.setDuration(10L);
ksession.getWorkingMemoryEntryPoint(time stream).insert(event);
At the end of the test, I have an sleep of 2 seconds just in case.
I don't understand why the Basic Rule never fires.
But if I add another condition to the same rule, something like this:
rule Basic Rule
dialect 'mvel'
when
$eventA: EventA($aId: id) from entry-point time stream
not EventB($aId == id, this after [0s,5s] $eventA) from entry-point
time stream
then
System.out.println(Event A + $aId + at + $eventA.timestamp);
end
The rules fires and I see this message in console:
Event A 123 at Fri Dec 07 09:48:59 ART 2012
I don't understand why the first rule, that is more open, don't fire, and
the second rule, that is more restrictive, fires without problems.
Thank you very much!
Greetings,
Adrian.
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Ing. Adrián M. Paredes | Arquitecto Desarrollador
adri...@epidataconsulting.com | Cel: (54911) 3297 1713
Argentina: Maipú 521 Piso 1 Of. A | Buenos Aires | Of: (5411) 5031 0060
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Re: [rules-users] A basic doubt about Drools Fusion
I think you have 2 main options here:
- Invoke fireUnitlHalt() in an independent thread.
- Invoke fireAllRules() after each insert() you have.
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Fri, Dec 7, 2012 at 3:57 PM, Adrián Paredes
adri...@epidataconsulting.com wrote:
Thank you, Esteban.
You are right! If I insert two events A:
rulesTest.addEventA(123);
rulesTest.addEventA(456);
The second call of fireAllRules() activates the rule for the first object:
Event inserted com.epidataconsulting.drools.model.EventA
Event A 123 at Fri Dec 07 11:54:21 ART 2012
Event inserted com.epidataconsulting.drools.model.EventA
But not for the second.
How I can do to correct this behavior?
Thanks!
Adrian
2012/12/7 Esteban Aliverti esteban.alive...@gmail.com
It could be the case, and I'm guessing here, that the AgendaEventListener
is called just before the activation is placed into the agenda. So, the
call to fireAllRules() finds an empty agenda. What you could do to check if
this is what is happening, is to insert 2 EvenA objects. The second call of
fireAllRules() should fire the activation of the first object (and you will
miss the activation of the second).
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Fri, Dec 7, 2012 at 1:55 PM, Adrián Paredes
adri...@epidataconsulting.com wrote:
Hi all:
I have a very basic doubt about Drools Fusion.
I have two simple Java classes:
EventA {
String id;
Date timestamp;
Long duration;
}
EventB {
String id;
Date timestamp;
Long duration;
}
I have a DRL file, where I declare this two classes as Events:
declare EventA
@role(event)
@timestamp(timestamp)
@duration(duration)
end
declare EventB
@role(event)
@timestamp(timestamp)
@duration(duration)
end
I have a simple rule:
rule Basic Rule
dialect 'mvel'
when
$eventA: EventA($aId: id) from entry-point time stream
then
System.out.println(Event A + $aId + at + $eventA.timestamp);
end
Finally, I have a test that starts a StatefulKnowledgeSession in STREAM
mode, register an eventLister in the session in order to fire the rules
when an event arrives:
ksession.addEventListener(new DefaultAgendaEventListener() {
@Override
public void activationCreated(ActivationCreatedEvent event) {
((StatefulKnowledgeSession)
event.getKnowledgeRuntime()).fireAllRules();
}
});
And then the test insert in the time stream entry-point an instance of
EventA with duration of 10 miliseconds, as follows:
EventA eventA = new EventA();
eventA.setId(123);
eventA.setTimestamp(new Date());
eventA.setDuration(10L);
ksession.getWorkingMemoryEntryPoint(time stream).insert(event);
At the end of the test, I have an sleep of 2 seconds just in case.
I don't understand why the Basic Rule never fires.
But if I add another condition to the same rule, something like this:
rule Basic Rule
dialect 'mvel'
when
$eventA: EventA($aId: id) from entry-point time stream
not EventB($aId == id, this after [0s,5s] $eventA) from entry-point
time stream
then
System.out.println(Event A + $aId + at + $eventA.timestamp);
end
The rules fires and I see this message in console:
Event A 123 at Fri Dec 07 09:48:59 ART 2012
I don't understand why the first rule, that is more open, don't fire,
and the second rule, that is more restrictive, fires without problems.
Thank you very much!
Greetings,
Adrian.
--
*Epidata Consulting | Deploying Ideas
Ing. Adrián M. Paredes | Arquitecto Desarrollador
adri...@epidataconsulting.com | Cel: (54911) 3297 1713
Argentina: Maipú 521 Piso 1 Of. A | Buenos Aires | Of: (5411) 5031 0060
Chile: Apoquindo 3600 Piso 7 y 9 | Las Condes - Santiago | Of: (+56) 2
495 8450
---
www.epidataconsulting.com
Linkedin http://bit.ly/epidatalinkedin |
Facebookhttp://www.facebook.com/epidata.consulting
| Twitter http://twitter.com/epidata
*
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Re: [rules-users] Value is not reflected in Fact Object at Drool Client Side
I'm wondering where did you get the content of that Guvnor.properties file.
The problem you are having is that the property file is not used to tell
the agent which resources should it use, but to set some of its internal
configurations such as:
- drools.agent.monitorChangeSetEvents (boolean)
- drools.agent.scanDirectories (boolean)
- drools.agent.scanResources (boolean)
- drools.agent.newInstance (boolean)
- drools.agent.useKBaseClassLoaderForCompiling (boolean)
- drools.agent.validationTimeout (long)
So, the properties you have there are not even being user, nor understood,
by drools.
In order to tell the agent which resources should it use, you must provide
a change-set pointing to those resources. You can find more information
about change-sets in Drools documentation.
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Wed, Dec 5, 2012 at 8:52 AM, Hushen Savani
hushen.sav...@elitecore.comwrote:
It seems that problem is with rule consumer (client), because even when
I mess up with url of guvnor, it is giving me the same behavior:
** **
*Guvnor.properties*:
** **
url=http://localhost:10080/ *guvnor*-5.5.0.Final-*tomcat*
-6.0/org.drools.guvnor.Guvnor/package/new *Pkg*/car111_*messed_up_url*
enableBasicAuthentication=true
username=*admin*
password=*admin*
name=*drooltest*
* *
** **
*Drool Consumer*:
** **
*package* kijanowski.eu;
** **
*import* java.util.Collection;
*import* java.util.Iterator;
** **
*import* org.drools.KnowledgeBase;
*import* org.drools.agent.KnowledgeAgent;
*import* org.drools.agent.KnowledgeAgentFactory;
*import* org.drools.runtime.StatefulKnowledgeSession;
** **
*public* *class* GuvnorTest {
** **
*public* *static* *final* *void* main(String[] args) {
** **
KnowledgeAgent agent = KnowledgeAgentFactory.*
newKnowledgeAgent*(/Guvnor.properties);
KnowledgeBase ruleBase = agent.getKnowledgeBase();
** **
StatefulKnowledgeSession workingMemory =
ruleBase.newStatefulKnowledgeSession();
Driver d = *new* Driver(Jarek, 20, *null*);
workingMemory.insert(d);
** **
workingMemory.fireAllRules();
*Collection* c = workingMemory.getObjects();
*for*(*Iterator* i = c.iterator(); i.hasNext();) {
//System.out.println(i.next().getClass().getCanonicalName());
Driver e = (Driver)i.next();
System.*out*.println( Age: + e.getAge() + Name: +
e.getName() +
Car: + e.getCar() + Object: + e);
}
}
}
** **
Can anyone please suggest some pointers on the same.
** **
Thanks.
** **
Best Regards
*Hushen Savani*
** **
*From:* rules-users-boun...@lists.jboss.org [mailto:
rules-users-boun...@lists.jboss.org] *On Behalf Of *Esteban Aliverti
*Sent:* Tuesday, December 04, 2012 9:38 PM
*To:* Rules Users List
*Subject:* Re: [rules-users] Value is not reflected in Fact Object at
Drool Client Side
** **
Sorry, I've just re-read your post and saw that you already mentioned that
you are not seeing the system.out of your rule.
What you can do is to debug (or add some code) to see which rules do you
have in the kbase returned by the kagent.
My guess is that your are not getting what you are expecting from Guvnor.*
***
** **
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Tue, Dec 4, 2012 at 5:03 PM, Esteban Aliverti
esteban.alive...@gmail.com wrote:
Do you see the message you are printing in the RHS of your rule?
** **
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Tue, Dec 4, 2012 at 3:28 PM, Mister Nono noel.maur...@univ-jfc.fr
wrote:
Hi,
Have you try to add in the then of the drools rule the line : *update(a);*
Best regards. ;)
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Re: [rules-users] keep only one, retract all other
Another way to obtain what you are looking for could be this:
rule Remove all but one
when
$f1: Fact(id == aaa)
$f2: Fact(id == aaa, this != $f1)
then
retract($f2);
end
The difference with this approach is the number of activations you will
have.
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Fri, Nov 30, 2012 at 10:06 AM, Wolfgang Laun wolfgang.l...@gmail.comwrote:
It seems you are using dialect mvel? This doesn't work
in 5.2.0, 5.3.0 and 5.4.0. (I haven't tried 5.5)
Use dialect java.
-W
On 30/11/2012, Martin Minka martin.mi...@gmail.com wrote:
I was using ArrayList before and I don't think this is the real problem.
collect() will return object compatible with List interface so it is
valid
to use size() and get() methods on $removeUs.
I have helper method myhelper.log() with accepts any object and *
myhelper.log($removeUs.get(i))* works for me, unfortunately
*retract($removeUs.get(i))
*doesn't work with error:
Error: unable to resolve method using strict-mode:
org.drools.spi.KnowledgeHelper.drools()] [Near : {...
drools.retract($removeUs }]
It looks like it is not even compiled.
2012/11/30 Wolfgang Laun wolfgang.l...@gmail.com
On 30/11/2012, Martin Minka martin.mi...@gmail.com wrote:
Thank you for the tip. What solution would you suggest to solve my
problem
?
Look into the javadoc of java.util to find any class implementing List
:-)
-W
Martin
2012/11/30 Wolfgang Laun wolfgang.l...@gmail.com
You cannot use an interfact (List) to instantiate an object, which
is happening due to the collect.
--W
On 30/11/2012, Martin Minka martin.mi...@gmail.com wrote:
I want to keep only 1 fact with id==. But this is not
working:
rule leave only one
when
$removeUs : java.util.List(size1)
from collect(Fact(id==)
then
size = $removeUs.size();
for (int i=1; i size; i++) {
retract($removeUs.get(i));
}
end
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Re: [rules-users] lock-on-active clarification needed
I've put together my ideas and findings in this topic in my blog:
http://ilesteban.wordpress.com/2012/11/16/about-drools-and-infinite-execution-loops/
Feel free to read it and provide feedback if desired.
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Nov 15, 2012 at 2:14 PM, Esteban Aliverti
esteban.alive...@gmail.com wrote:
Thanks for your clarifications and thoughts.
My misunderstanding was because I always thought that lock-on-active meant
lock-on-RULE-active. Something like lock after the first activation and do
not unlock until the agenda group is changed.
The real meaning is lock-on-AGENDA_GROUP-active. Meaning: do not create
activations of this rule (no matter if using update(), modify(), insert()
or retract()) if the agenda group where it belongs is active.
Best Regards!
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Nov 15, 2012 at 7:54 AM, Mattias Nilsson Grip
mattias.nilsson.g...@redpill-linpro.com wrote:
Armand/Esteban,
I had a look at source code (
org.drools.common.DefaultAgenda.createActivation(...) ) and as far as I can
tell it should not matter if the rules match on the same facts or not. I
interpret the source code like this:
While an agenda group or rule flow group is active, any rules within
that group with lock-on-active set to true are prevented from creating new
activations
I.e. the rule Rule 1 cannot create an activation since its agenda group
MAIN is already active when its conditions are fulfilled.
Regards,
Mattias
- Original Message -
From: Armand Welsh awe...@statestreet.com
To: Rules Users List rules-users@lists.jboss.org
Sent: Wednesday, 14 November, 2012 11:04:36 PM
Subject: Re: [rules-users] lock-on-active clarification needed
Esteban,
I too have been confused by lock-on-active. Only after reading the
definition many times, have I come to the following conclusion:
Looking at the documentation, and other examples, I think I can how
lock-on-active behaves. From what I gather, it looks like when “init “ rule
fires, the activations for that rule consist of the DataSample() facts (all
of them). You then modify the fact, but at the same time, the
lock-on-active blocks any further activations from occur as a result of
modifying the DataSample() fact.
Since “Rule 1” depends on DataSample, and it is in the same agenda group
as init, “Rule 1” cannot fire until the agenda group is changed, or the
ruleflow-group is changed.
What is being blocked by lock-on-active is not the reactivation of the
rule. What is being blocked is the resultant activations as a result of
modify the DataSample fact.
This block only holds true on the current focus (agenda-group or
ruleflow-group). Think of it as a way of temporarily removing the facts
from the knowledge tree.
From: rules-users-boun...@lists.jboss.org [mailto:
rules-users-boun...@lists.jboss.org] On Behalf Of Esteban Aliverti
Sent: Wednesday, November 14, 2012 3:41 AM
To: Rules Users List
Subject: [rules-users] lock-on-active clarification needed
Hi all,
I'm dealing with a set of rules having the lock-on-active attribute and
I'm not getting the (at least what I understand as) expected results.
I've created an isolated JUnit test. I'm attaching it to this email.
Basically, I have 2 rules:
rule init
lock-on-active true
when
$d: DataSample()
then
System.out.println(Setting predefined value);
modify($d){
addValue(Parameter.PARAM_A, 10.0)
}
end
rule Rule 1
lock-on-active true
when
DataSample($v: values[Parameter.PARAM_A] 20)
then
System.out.println(Rule 1: +$v);
end
DataSample is a Java class containing a MapParameter, Double where
Parameter is an enum.
In the test I'm creating a ksession and inserting an empty DataSample
object.
I understand that as soon as the object is inserted, both rules are
evaluated and the result is going to be an activation of rule init; and
this is what is actually happening. So far so good.
Now, after I call fireAllRules() I expect that 'Rule 1' becomes active
because of the modification of the fact in init. Well, this is not the
case. I don't see any activation for Rule 1.
My understanding about lock-on-active is that a rule that WAS ACTIVATED
is not going to be re-activated until the current agenda group is switched.
The odd thing here is that I never had an activation for Rule 1 so I
don't see why it activation after init is executed should be prevented.
So my question is: Is my understanding wrong? What is the expected
behavior of lock-on-active in this situation? I read the documentation but
I couldn't get any hint:
Whenever a ruleflow-group becomes active or an agenda-group receives the
focus, any rule within that group that has lock-on-active set to true will
not be activated any more ; irrespective of the origin of the update
Re: [rules-users] Is Flow / jBPM dying on the vine?
What you seem to be looking for is a Conditional Start Event where you can define the condition using Drools syntax. What you should do when you want to introduce a wait point is to do the merge of you current flow with one of this Conditional Start Event using an Converging Parallel Gateway. The gateway will not continue its execution until all of its branches get executed. That is a 100 BPMN2 solution (you could also use complex gateways, but I'm not sure in which degree are they supported in jBPM5). Another solution, more user friendly and even easier to implement and maintain is to use asynchronous work items that will be completed by rules when certain condition is met. The good thing about this solution is that is easy to create your own task definition to put in the editor palette and that you can create a single work item handler and reuse it for all your 'wait points'. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Fri, Nov 9, 2012 at 3:18 PM, dunnlow dunn...@yahoo.com wrote: Salaboy, the issue I have is that I want users to be able to see the process graphically, so I think that means I need one overall process (I may use a few sub-processes). Using rules however as you suggest is there a way to pause a process until a message (/signal) with certain criteria is inserted? I thought about using a business rule task, with a rule that would always be false (until the node should allow processing to pass through), but I could not get that working. I also saw a suggestion about adding a Condition to the metadata for a timer node, but that doesn't seem to be working either. Mark - thanks for the information. I'm looking at flexible processes now and will be in touch with Kris. Thanks again, -J -- View this message in context: http://drools.46999.n3.nabble.com/Is-Flow-jBPM-dying-on-the-vine-tp4020738p4020774.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] Error in adding BRL in Guvnor
If you are using the binary version of your package you should use ResourceType.PKG. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Tue, Oct 30, 2012 at 7:15 AM, vargheseps varghesep...@gmail.com wrote: I have created a Model named applicationHealth which contain a class “com.xyz.rims.model.Application” on Guvnor. Also created a Business rule asset named ‘ApplicationHealthRule’ which uses ‘Application’. I have created a business rule task in a BPMN2 process and gave the ‘ruleflow-group’ as same as a Business rule assets . kbuilder.add(ResourceFactory.newUrlResource(DROOLS_COMMON_URL+ApplicationHealthRule/binary), ResourceType.BRL); I used the above code to add the resource to kbuilder The error I get is: [Unable to resolve ObjectType 'Application' : [Rule name='ApplicationHealthRule'] ] -- View this message in context: http://drools.46999.n3.nabble.com/Error-in-adding-BRL-in-Guvnor-tp4020555.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] Local Variable
Did you read the documentation about 'globals'? Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Fri, Oct 5, 2012 at 1:46 PM, joy kripa_...@infosys.com wrote: Hi i need local variables in drl file. it should hold integer/double value. Setting an integer value to a local variable in some rule and getting that integer value in some other rule when #some condition01 then local variable=200 end when #some condition02 then local variable =300 end when #some condition03 then emp.salary=localvariable+2000 end Anyone plz help me to resolve this. Thank you Joy -- View this message in context: http://drools.46999.n3.nabble.com/Local-Variable-tp4020144.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] Drools 5.4 final and jbpm: problem in acces process variable
At first view I think you are missing the dataoutput association in the task that modifies the value. You must define 'outputValue' in the DataOutputSet of the task and make the association between this DataOutput and the process variable. By the way, what is 'DroolsAuthorizationService.populateResultFields(decisionList);' doing? Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Thu, Sep 27, 2012 at 1:10 PM, Manasi manasi.a.da...@capgemini.comwrote: hi, heres is the handler code in service task : I have added this line in service task: ListString decisionList = new ArrayListString(); decisionList.add(UI_Kunde); outputValue=UI_Kunde; System.out.println(outputValue +outputValue); DroolsAuthorizationService.populateResultFields(decisionList); my xml ?xml version=1.0 encoding=UTF-8? definitions id=Definition targetNamespace=http://www.jboss.org/drools; typeLanguage=http://www.java.com/javaTypes; expressionLanguage=http://www.mvel.org/2.0; xmlns=http://www.omg.org/spec/BPMN/20100524/MODEL; xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xsi:schemaLocation= http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd xmlns:g=http://www.jboss.org/drools/flow/gpd; xmlns:bpmndi=http://www.omg.org/spec/BPMN/20100524/DI; xmlns:dc=http://www.omg.org/spec/DD/20100524/DC; xmlns:di=http://www.omg.org/spec/DD/20100524/DI; xmlns:tns=http://www.jboss.org/drools; itemDefinition id=_screenIdItem structureRef=String / itemDefinition id=_outputValueItem structureRef=String / itemDefinition id=_3-screenIdItem structureRef=String / itemDefinition id=_3-outputValueItem structureRef=String / itemDefinition id=_4-screenIdItem structureRef=String / itemDefinition id=_4-outputValueItem structureRef=String / itemDefinition id=_6-screenIdItem structureRef=String / itemDefinition id=_6-outputValueItem structureRef=String / itemDefinition id=_8-screenIdItem structureRef=String / itemDefinition id=_8-outputValueItem structureRef=String / process processType=Private isExecutable=true id=12 name=FeltKnapRestriktionerKundeMedAnl tns:packageName=com.yousee.drools.services extensionElements tns:import name=org.drools.KnowledgeBaseConfiguration / tns:import name=org.drools.KnowledgeBaseFactory / tns:import name=org.drools.agent.KnowledgeAgent / tns:import name=org.drools.agent.KnowledgeAgentConfiguration / tns:import name=org.drools.agent.KnowledgeAgentFactory / tns:import name=org.drools.builder.KnowledgeBuilder / tns:import name=org.drools.builder.KnowledgeBuilderFactory / tns:import name=org.drools.builder.ResourceType / tns:import name=org.drools.conf.EventProcessingOption / tns:import name=org.drools.io.ResourceFactory / tns:import name=org.drools.runtime.StatefulKnowledgeSession / tns:import name=com.tdc.ktv.nyss.drools.common.NyssStaffSO / tns:import name=com.tdc.ktv.nyss.drools.common.NyssCableUnitSO / tns:import name=java.util.* / /extensionElements property id=screenId itemSubjectRef=_screenIdItem/ property id=outputValue itemSubjectRef=_outputValueItem/ startEvent id=_1 name=StartProcess / inclusiveGateway id=_2 name= gatewayDirection=Diverging / task id=_3 name=Customer Deatails tns:taskName=Log extensionElements tns:onEntry-script scriptFormat=http://www.java.com/java; /tns:onEntry-script /extensionElements ioSpecification dataInput id=_3_MessageInput name=Message / inputSet dataInputRefs_3_MessageInput/dataInputRefs /inputSet outputSet /outputSet /ioSpecification dataInputAssociation targetRef_3_MessageInput/targetRef assignment from xsi:type=tFormalExpressionIn Customer Details Flow/from to xsi:type=tFormalExpression_3_MessageInput/to /assignment /dataInputAssociation /task task id=_4 name=SupplierCommodityCreateFlow tns:taskName=Log extensionElements tns:onEntry-script scriptFormat=http://www.java.com/java; /tns:onEntry-script /extensionElements ioSpecification dataInput id=_4_MessageInput name=Message / inputSet dataInputRefs_4_MessageInput/dataInputRefs /inputSet outputSet /outputSet /ioSpecification dataInputAssociation targetRef_4_MessageInput/targetRef assignment from xsi:type=tFormalExpressionIn SupplierCommodity Create Flow/from to xsi:type=tFormalExpression_4_MessageInput/to /assignment /dataInputAssociation /task exclusiveGateway id=_5 name=Gateway gatewayDirection
[rules-users] How does 'from' cache works?
Assuming I have the following rule: global SomeClient client; rule Poll Values timer (int: 0s 1s) when $data: Data() from client.getData(); then insert($data); end and that I'm just creating a session with just that rule, setting the global and calling fireAllRules(). And let's say that my session is running for 5 seconds. My questions are: 1.- How many times is the rule going to be executed? 2.- How many times is client.getData() going to be invoked? The test I have shows that the rule is executed 5 times, but client.getData() is only invoked for the first activation. The returned object is used in the subsequent activations. Is this the expected behavior? As the rule name states, I'm expecting to get some (different) values from client every second. I understand that I'm doing 'strange' things since the rule doesn't use any real fact but I would like to understand why I'm experiencing the described behavior. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] fireUntilHalt() is halt forever
Instead of grouping your rules using agenda-group maybe you could partition your kbase to only have the rules for a particular Product (?) Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Tue, Aug 21, 2012 at 5:00 PM, Rana ven12...@yahoo.com wrote: Here is the example rule AndroGel Provider State no-loop true salience 95 agenda-group AndroGel when eval( droolsRequest.address.stateCode == MA ) then logging(); drools.halt(); end the other rule is very similar but for a different Agenda Group rule Pradaxa Provider State no-loop true salience 95 agenda-group Pradaxa when eval( droolsRequest.address.stateCode == MA ) then logging(); drools.halt(); end In this case it is firing the Pradaxa rule and giving me the wrong output. Thanks. -- View this message in context: http://drools.46999.n3.nabble.com/fireUntilHalt-is-halt-forever-tp4019146p4019313.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] fireUntilHalt() is halt forever
You can still have different change-sets pointing to different resources (you can share these resources too) for different kbases. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Tue, Aug 21, 2012 at 5:21 PM, Rana ven12...@yahoo.com wrote: I am actually using ChangeSet, because we did not wanted the rule files to loaded many times, rather load at once and use scanner to look for any changes. -- View this message in context: http://drools.46999.n3.nabble.com/fireUntilHalt-is-halt-forever-tp4019146p4019317.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] Question about the Nature of Ruleflows
Drools Flow (aka JBPM5) will look for all the Persons and Dogs you have in
your session.
Since the conditions in an XOR gateway are evaluated in order, the first
one being true is going to be selected.
In your case, after you insert the Persons, both rules are activated, but
the gateway is always going to pick the first one.
I would suggest to use different process instances for different scenarios.
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Tue, Aug 21, 2012 at 11:14 PM, BenjaminWolfe
benjamin.e.wo...@gmail.comwrote:
Thanks Wolfgang.
My original post was a conceptual analogy. But this still isn't working
right for me, so I've written out a full-fledged example to see if you or
anyone else can help. The full example is behaving exactly the way my real
(important) code is -- which is the wrong way for the business application.
:-/ I should add that in real life, the ruleflow groups each have multiple
rules within them.
So without further ado, here's my code -- two POJOs, a bpmn file, a rule
resource, and a test class -- along with the expected output and actual
output.
*User.java*
package com.examples.ruleflow;
public class User {
private int id;
public User() {}
public User(int id) {
this.id = id;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
*Dog.java*
package com.examples.ruleflow;
public class Dog {
private int id;
private int ownerId;
private boolean hasDogTag;
public Dog() {}
public Dog(int id) {
this.id = id;
}
public int getId() {
return id;
}
public int getOwnerId() {
return ownerId;
}
public boolean isHasDogTag() {
return hasDogTag;
}
public void setId(int id) {
this.id = id;
}
public void setOwnerId(int ownerId) {
this.ownerId = ownerId;
}
public void setHasDogTag(boolean hasDogTag) {
this.hasDogTag = hasDogTag;
}
}
*dog_owner_flow.bpmn*
?xml version=1.0 encoding=UTF-8?
definitions id=Definition
targetNamespace=http://www.jboss.org/drools;
typeLanguage=http://www.java.com/javaTypes;
expressionLanguage=http://www.mvel.org/2.0;
xmlns=http://www.omg.org/spec/BPMN/20100524/MODEL;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=
http://www.omg.org/spec/BPMN/20100524/MODEL
BPMN20.xsd
xmlns:g=http://www.jboss.org/drools/flow/gpd;
xmlns:bpmndi=http://www.omg.org/spec/BPMN/20100524/DI;
xmlns:dc=http://www.omg.org/spec/DD/20100524/DC;
xmlns:di=http://www.omg.org/spec/DD/20100524/DI;
xmlns:tns=http://www.jboss.org/drools;
process processType=Private isExecutable=true
id=com.examples.ruleflow.dogProcess name=Dog Owner Process
tns:packageName=com.examples.ruleflow tns:version=1
startEvent id=_1 name=StartProcess /
exclusiveGateway id=_2 name=Gateway gatewayDirection=Diverging
/
businessRuleTask id=_3 name=Branch A g:ruleFlowGroup=flowA
/businessRuleTask
businessRuleTask id=_4 name=Branch B g:ruleFlowGroup=flowB
/businessRuleTask
exclusiveGateway id=_5 name=Gateway gatewayDirection=Converging
/
endEvent id=_6 name=End terminateEventDefinition//endEvent
sequenceFlow id=_1-_2 sourceRef=_1 targetRef=_2 /
sequenceFlow id=_2-_3 sourceRef=_2 targetRef=_3 name=dog tags
OK tns:priority=1
conditionExpression xsi:type=tFormalExpression
language=http://www.jboss.org/drools/rule;
/$u : User()
not ( Dog( ownerId == $u.id, hasDogTag == false ) )/
/conditionExpression
/sequenceFlow
sequenceFlow id=_2-_4 sourceRef=_2 targetRef=_4 name=dog tag
issue tns:priority=1
conditionExpression xsi:type=tFormalExpression
language=http://www.jboss.org/drools/rule;
/$u : User()
exists ( Dog( ownerId == $u.id, hasDogTag == false ) )/
/conditionExpression
/sequenceFlow
sequenceFlow id=_3-_5 sourceRef=_3 targetRef=_5 /
sequenceFlow id=_4-_5 sourceRef=_4 targetRef=_5 /
sequenceFlow id=_5-_6 sourceRef=_5 targetRef=_6 /
/process
bpmndi:BPMNDiagram
bpmndi:BPMNPlane bpmnElement=com.examples.ruleflow.dogProcess
bpmndi:BPMNShape bpmnElement=_1
dc:Bounds x=16 y=16 width=48 height=48 /
/bpmndi:BPMNShape
bpmndi:BPMNShape bpmnElement=_2
dc:Bounds x=180 y=15 width=48 height=48 /
/bpmndi:BPMNShape
bpmndi:BPMNShape bpmnElement=_3
dc:Bounds x=42 y=162 width=80 height=48 /
/bpmndi:BPMNShape
Re: [rules-users] How to execute knowledeg base remotely?
AFAIK, after you deploy the generated .war you will have a running instance of Drools Camel Server: http://docs.jboss.org/drools/release/5.4.0.Final/droolsjbpm-integration-docs/html_single/index.html#ch.server Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Sun, Aug 19, 2012 at 6:24 PM, jasonxzhong jason.zh...@ellucian.comwrote: In Guvnor 5.4.0 manual it states /Service Config is a special asset that defines an execution service configuration. This execution service is a war file (generated automatically by the editor) which you can deploy to execute KnowledgeBases remotely for any sort of client application./ This is very interesting from the point of integration as we have both JVM and .NET based solutions. However even though the manual explains in details how to create a service config asset and deploy it, I cannot find any reference as how the service interface is exposed (REST, SOAP?) and any description of the definition of the remote APIs that can be invoked by a client application. Maybe I missed something... Jason - Jason -- View this message in context: http://drools.46999.n3.nabble.com/How-to-execute-knowledeg-base-remotely-tp4019270.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] Specify enumeration for DSL variables?
http://docs.jboss.org/drools/release/5.4.0.Final/drools-guvnor-docs/html_single/index.html#d0e1802
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Fri, Aug 17, 2012 at 4:06 PM, jasonxzhong jason.zh...@ellucian.comwrote:
Sure I'll explain. Assuming I have the following defined in a DSL:
[consequence][]Set result {name} to {value} = data.results.put({name},
{value});
In the guided BRL rule editor, when I choose to use this DSL to add an
action, the following is displayed
Set rule flag [name] to [value]
In this case data.results is a map that contains name/value pairs that can
be set be the rules. My questions are:
a. Can I attach a list of valid names to the {name} variable defined in the
DSL?
b. Is it possible to specify a list of valid values for the {value}
variable
based on the value of {name} defined in the DSL? For example if
name==valid, {value} is in [true, false]. If name==code, {value} is in
[1,2,3,4,5]. Or if a helper function can be used for this?
Thanks,
Jason
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Re: [rules-users] modify and update is not working in the rule file
By the way, what are you trying to do in this piece of code?
CollectionObject objs = workingMemory.getObjects();
IteratorObject it = objs.iterator();
while (it.hasNext()) {
Object obj = it.next();
if (obj instanceof Program) {
FactHandle fact = workingMemory.getFactHandle(obj);
workingMemory.update(fact, obj);
}
}
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Aug 16, 2012 at 4:25 PM, Esteban Aliverti
esteban.alive...@gmail.com wrote:
The project doesn't compile since the parent pom is missing. You don't
event have the Drug and Program classes in it!
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Aug 16, 2012 at 4:02 PM, Rana ven12...@yahoo.com wrote:
Please find the project attached. Please check and help me out. I am now
like
cat on that wall. The project team needs it and this is giving me hard
time.
Please help
http://drools.46999.n3.nabble.com/file/n4019196/pi-affiliate-drools-rule-engine.zip
pi-affiliate-drools-rule-engine.zip
Please help.
Thanks.
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Re: [rules-users] modify and update is not working in the rule file
One last thing. Just like Wolfgang said: if you don't activate the
agenda-group where the rule is defined its activations are never going to
be executed.
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Aug 16, 2012 at 4:29 PM, Esteban Aliverti
esteban.alive...@gmail.com wrote:
By the way, what are you trying to do in this piece of code?
CollectionObject objs = workingMemory.getObjects();
IteratorObject it = objs.iterator();
while (it.hasNext()) {
Object obj = it.next();
if (obj instanceof Program) {
FactHandle fact = workingMemory.getFactHandle(obj);
workingMemory.update(fact, obj);
}
}
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Aug 16, 2012 at 4:25 PM, Esteban Aliverti
esteban.alive...@gmail.com wrote:
The project doesn't compile since the parent pom is missing. You don't
event have the Drug and Program classes in it!
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Aug 16, 2012 at 4:02 PM, Rana ven12...@yahoo.com wrote:
Please find the project attached. Please check and help me out. I am now
like
cat on that wall. The project team needs it and this is giving me hard
time.
Please help
http://drools.46999.n3.nabble.com/file/n4019196/pi-affiliate-drools-rule-engine.zip
pi-affiliate-drools-rule-engine.zip
Please help.
Thanks.
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Re: [rules-users] Slow compilation (4h) for a single rule
As far as I remember, there were some fixes around compilation time for edge cases in 5.4. Could you please give a try to 5.4 or even 5.5-SNAPSHOT? Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Tue, Jul 24, 2012 at 1:11 PM, Wolfgang Laun wolfgang.l...@gmail.comwrote: On 24/07/2012, fx242 dro...@fx242.com wrote: Hi, This single rule was taking all the 4h to compile! I'm using DROOLS 5.2 Final. The rule example below samples the problem (don't mind the nonsense Number() conditions): Well, I do mind the nonsense Number(). There's no point in discussing this if you don't post an exact image of your rule. -W ___ 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] Gwt Error while integrating guvnor with custom application.
Try removing the 'gwt.codesvr=localhost:8080http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/standaloneEditorServlet?gwt.codesvr=localhost:8080' from the url. That parameter is only valid when GWT is running in dev mode. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Wed, Jul 18, 2012 at 3:55 PM, soumya soumya.she...@tcs.com wrote: Hi, I am new to drools, currently i have deployed drools-guvnor5.3 on jboss AS 5.1GA. I want to use guvnor asset editor in my custom application. I have followed the link http://ilesteban.wordpress.com/2010/11/23/guvnor-embed-assets-editor-in-your-application/ . I am using assetEditor.html, but when i click on submit button it says Plugin failed to connect to Development Mode server at localhost:8080 The URL mentioned in my html is http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/standaloneEditorServlet?gwt.codesvr=localhost:8080 as my server is running on localhost:8080. Anybody come across this error and having solution? Please help!!! -- View this message in context: http://drools.46999.n3.nabble.com/Gwt-Error-while-integrating-guvnor-with-custom-application-tp4018754.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] Drools Guvnor-Decison Tables - Rule is not being fired!!! Please help
The problem is that you are inserting the fact type definition instead of the facts themselves. instead of insert *appType* and *incomeType* you should insert *application*and *income*. Best Regards, Esteban Aliverti - Blog @ http://ilesteban.wordpress.com On Mon, Jul 16, 2012 at 3:20 PM, Wolfgang Laun wolfgang.l...@gmail.comwrote: Why do you think that you should have a third fact when there are no insert() calls except the two in your Java code? -W On 16/07/2012, Ravikiran ravikiran.kaka...@gmail.com wrote: Hi, I'm using default Guvnor package mortgages decision table as example for my POC. Below is the rules from the decision table. No rule is being fired from my JAVA client out of 3 rules given below. //from row number: 1 rule Row 3 Pricing loans dialect mvel when application : LoanApplication( amount 131000 , amount = 20 , lengthYears == 30 , deposit 2 ) income : IncomeSource( type == Asset ) then application.setApproved( true ); application.setInsuranceCost( 0 ); application.setApprovedRate( 2 ); end //from row number: 2 rule Row 1 Pricing loans dialect mvel when application : LoanApplication( amount 1 , amount = 10 , lengthYears == 20 , deposit 2000 ) income : IncomeSource( type == Job ) then application.setApproved( true ); application.setInsuranceCost( 0 ); application.setApprovedRate( 4 ); end //from row number: 3 rule Row 2 Pricing loans dialect mvel when application : LoanApplication( amount 11 , amount = 13 , lengthYears == 20 , deposit 3000 ) income : IncomeSource( type == Job ) then application.setApproved( true ); application.setInsuranceCost( 10 ); application.setApprovedRate( 6 ); end == My Java client follows KnowledgeBase knowledgeBase = createKnowledgeBase(); //Successfully creates knowledgebase StatefulKnowledgeSession session = knowledgeBase.newStatefulKnowledgeSession(); FactType appType = knowledgeBase.getFactType( mortgages, LoanApplication ); FactType incomeType = knowledgeBase.getFactType( mortgages, IncomeSource ); Object application = appType.newInstance(); Object income = incomeType.newInstance(); appType.set(application, amount, 10); appType.set(application, deposit, 1500); appType.set(application, lengthYears, 20); incomeType.set(income, type, Job); incomeType.set(income, amount, 65000); session.insert(appType); session.insert(incomeType); assertTrue(session.getFactCount() == 2); session.fireAllRules(); assertTrue(session.getFactCount() == 3); Question: I hope the way i pass the input satisfies Row 2 Pricing loans above. But My assertion is getting failed after calling fireAllRules()...because the factcount was still 2. Please help what could be the wrong in above scenario. thanks a lot. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Guvnor-Decison-Tables-Rule-is-not-being-fired-Please-help-tp4018701.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
Re: [rules-users] Error on Build Package Click
Could you paste the source code (DRL) of the package?
Best Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Mon, Jul 16, 2012 at 6:30 PM, paco fifi_nji...@yahoo.fr wrote:
I got the following error when I tryed to build the default sample
repository
after starting guvnor the first time.
I then tried to build my own package, and got the same error:
400 Sorry, a technical error occurred. Please contact a system
administrator.
Service method 'public abstract org.drools.guvnor.client.rpc.BuilderResult
org.drools.guvnor.client.rpc.PackageService.buildPackage
(java.lang.String,boolean,java.lang.String,java.lang.String,java.lang.String,boolean,java.lang.String,
java.lang.String,boolean,java.lang.String)
throws com.google.gwt.user.client.rpc.SerializationException' threw an
unexpected exception: [Error: illegal escape sequence: .] [Near : {...
...\.[1-4] }] ^ [Line: 1, Column: 22] [Error: illegal escape
sequence: .] [Near : {... ..ppp\.[1-4] }] ^ [Line: 1, Column: 22]
Please
Suggest
Thanks
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Re: [rules-users] convert drl file to rf?
You can't just visualize the runtime execution order of the rules in design time. What you could do is to dictate the order you want by using, for example, jBPM5. The language used by jBPM5 is BPMN2.0, a business process definition language, which can't be converted to DRL (which is a business rule language). So, using BPMN2.0 you can orchestrate the rules present in one or more DRL file. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Jul 3, 2012 at 10:28 PM, al so volks...@gmail.com wrote: Sure. All I am trying to do is to visualize the execution order of rules from drl files using whatever suitable UI tool. Looks like there is none. On Tue, Jul 3, 2012 at 1:13 PM, Wolfgang Laun wolfgang.l...@gmail.comwrote: Please realize that the Drools Rule Language and jBPM are complementary; there is no way to express coded instances of either one in the language of the other one. -W On 3 July 2012 22:04, al so volks...@gmail.com wrote: I have only drl files (rule definition files in .drl and not rule flows). I guess there should be a way to convert drl to jBPM file? Or drl to rf to jBPM? On Tue, Jul 3, 2012 at 12:17 AM, Caillard, Quentin quentin.caill...@ariadnext.com wrote: When i right click on the .rf file i have the option Convert to BPMN2 process. 2012/7/2 al so volks...@gmail.com I have both drools and jBPM plugin installed. Where do you do that right click? Anything that is intuitive won't work in eclipse. I did the right click on drl file and didn't see any such options. On Fri, Jun 29, 2012 at 1:01 AM, Caillard, Quentin quentin.caill...@ariadnext.com wrote: The ruleflow file(.rf) is deprecated. You can convert your old ruleflow (.rf) to jbpm(.bpmn) file. I did it by using the Drools plugin for Eclipse. If you have the plugin, a simple right click should work. 2012/6/29 abhinay_agarwal abhinay_agar...@infosys.com in the newer version of drools we cannot create a ruleflow file..we can only create a jbpm process file are ruleflow file(.rf) and jbpm(.bpmn) related ?? -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-convert-drl-file-to-rf-tp4018344p4018352.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 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
Re: [rules-users] ruleflow-group
I have replayed you in other thread. You can't convert from BPMN2.0 (jBPM5 language) to DEL (Drools language). What you can do with jBPM5 is to orchestrate the execution of the rules present in your DRL files. For more information: http://docs.jboss.org/jbpm/v5.3/userguide/ch.core-basics.html#d0e1862 Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Jul 3, 2012 at 10:02 PM, al so volks...@gmail.com wrote: I already have tons of rules today in drl file. I've both jBPM5 and drools plugin installed on eclipse 3.6. I didn't find a way to convert these drl files to jBPM to visualize the existing rules. On Tue, Jul 3, 2012 at 12:30 AM, Esteban Aliverti esteban.alive...@gmail.com wrote: If what you are looking for is to graphically model the execution order of a set of rules, then the best you can do is to go to jBPM5. jBPM5 is a process engine where, among other things, you can have tasks (nodes in the process) activating and deactivating rule-flow-groups (yes, I know, the name is kind of old) in the agenda. The concept of a rule-flow-group is similar to the agenda-group where rules are only executed only if the group where they belong is 'active'. Using jBPM5 you can use a 'Rule Task' node to automatically activate a particular rule-flow-group. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Jul 2, 2012 at 10:08 PM, al so volks...@gmail.com wrote: One could control the rule execution order using various different constructs (like salience, etc) within the rule definition file. Is there any UI tool that can take the drl file and visualize the rule execution flow? Does it help the section of audience who doesn't understand the concepts like agenda-group? Is jBPM the right tool in such scenario where all I have is bunch of drl files (no Process is involved here). i.e. try to visualize the Rule Execution order. This is where I was investigating the use of RuleFlow and later found that jBPM obsoletes it. Then was curious about how ruleflow-group is integrated with jBPM? Unable to find the solution yet. On Sun, Jul 1, 2012 at 3:03 PM, Mark Proctor mproc...@codehaus.orgwrote: On 30/06/2012 00:08, al so wrote: looks like one can't activate a ruleflow-group inside a drl file? Only available via UI? I was thinking there'll be some kind of setFocus way to control rule execution using this ruleflow-group. For the 6.0 development cycle we are looking into alternative approaches to handling rule execution orchestration. Nothing to show yet. Mark ___ rules-users mailing listrules-users@lists.jboss.orghttps://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
Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources
Hi Hrumph, The pull request is still open and waiting to be merged (even if now it can't be automatically merged): https://github.com/droolsjbpm/drools/pull/100 Could someone of the dev team please take a look at it? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Jul 2, 2012 at 10:31 PM, Hrumph herman.p...@imail.org wrote: Hello. I posted this issue quite awhile ago and also created Jira JBRULES-3388. Esteban proposed a solution and submitted a pull request but this was not resolved in 5.3 or 5.4 releases. I haven't seen Esteban online for awhile, so perhaps it has been overlooked. This seems like a significant issue to me - the ability to use the KnowledgeBase classloader for dependencies that reside in a .PKG. This feature was also described in the DroolsCookbook, but only demonstrated for a .DRL type resource. I am surprised that others have not pointed out this issue - is there another approach for loading packages and their dependencies that is more commonly used? Thanks, Herm -- View this message in context: http://drools.46999.n3.nabble.com/KnowledgeAgent-custom-class-loader-not-working-for-PKG-resources-tp3746456p4018395.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] ruleflow-group
If what you are looking for is to graphically model the execution order of a set of rules, then the best you can do is to go to jBPM5. jBPM5 is a process engine where, among other things, you can have tasks (nodes in the process) activating and deactivating rule-flow-groups (yes, I know, the name is kind of old) in the agenda. The concept of a rule-flow-group is similar to the agenda-group where rules are only executed only if the group where they belong is 'active'. Using jBPM5 you can use a 'Rule Task' node to automatically activate a particular rule-flow-group. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Jul 2, 2012 at 10:08 PM, al so volks...@gmail.com wrote: One could control the rule execution order using various different constructs (like salience, etc) within the rule definition file. Is there any UI tool that can take the drl file and visualize the rule execution flow? Does it help the section of audience who doesn't understand the concepts like agenda-group? Is jBPM the right tool in such scenario where all I have is bunch of drl files (no Process is involved here). i.e. try to visualize the Rule Execution order. This is where I was investigating the use of RuleFlow and later found that jBPM obsoletes it. Then was curious about how ruleflow-group is integrated with jBPM? Unable to find the solution yet. On Sun, Jul 1, 2012 at 3:03 PM, Mark Proctor mproc...@codehaus.orgwrote: On 30/06/2012 00:08, al so wrote: looks like one can't activate a ruleflow-group inside a drl file? Only available via UI? I was thinking there'll be some kind of setFocus way to control rule execution using this ruleflow-group. For the 6.0 development cycle we are looking into alternative approaches to handling rule execution orchestration. Nothing to show yet. Mark ___ rules-users mailing listrules-users@lists.jboss.orghttps://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
Re: [rules-users] Cannot get Custom Forms to work in Guvnor
What is the url you are using for the custom form? Did you try to see what is going on using something like firebug of chrome developer tools? Is the URL even invoked? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Jun 19, 2012 at 12:21 AM, sams dro...@mailinator.com wrote: I cannot get custom forms to work in guided editor. I can create a working set, add the field and value, and define the custom form OK. When I get to the editing experience and click on the 'pencil' I get a popup the size that I declared bit with no content. It makes no difference what URL I enter. Can someone please confirm that this feature indeed works in 5.4.0 on Tomcat? Thanks, Sam -- View this message in context: http://drools.46999.n3.nabble.com/Cannot-get-Custom-Forms-to-work-in-Guvnor-tp4018036.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-distribution-5.4.0.Final problem
All versions from 1 to 7? Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Sun, Jun 17, 2012 at 12:45 AM, Michael Anstis michael.ans...@gmail.comwrote: If you receive Guvnor from the Drools download page it is not a Red Hat product, but a community open source effort. The three WARs are essentially different packages of the same application, but different application servers have different footprints and hence what we included in the respective WAR had to vary. If you buy Red Hat BRMS then I suggest you work with your account representative to discuss compatibility concerns. sent on the move On 16 Jun 2012 20:27, domingo sprabak...@gmail.com wrote: Hi, I have a question to the drools guvnor team In the guvnor-distribution binary folder contains three war files, guvnor-5.4.0.Final-jboss-as-7.0, guvnor-5.4.0.Final-jboss-as-5.1 and guvnor-5.4.0.Final-tomcat-6.0 respectively. My question is why these three specific war files? Will it be work with other version of these app. servers? Drools and Jboss are redhat products, than why guvnor is not supported by all versions of jboss Apps server? this raise lots of reliability related questions in the industry...I really appreciate some one from the core team can answer these questions. thanks, - with kind regards, -- View this message in context: http://drools.46999.n3.nabble.com/guvnor-distribution-5-4-0-Final-problem-tp4018004.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
Re: [rules-users] Performance issue
The first optimization I can advice (without knowing your rules) is to keep
the kbase cached instead of being compiling the resources and creating it
for each request.
You can compile the resources with kbuilder once, create a kbase once and
then for each request you only need to create a ksession from the already
existing kbase and use it.
The compilation of the rules is (usually) one of the most time-consuming
tasks you have in drools.
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
On Thu, May 31, 2012 at 8:25 AM, Ini inder...@gmail.com wrote:
Hi All,
I have written a code to check the properties of a bean
using drools based
rules.
I have created the different rules file where different
properties of the
bean will be checked.
The code i have written is a as below:
public static void check(Object details,String rule){
long methodStartTime=System.currentTimeMillis();
Resource resource = new
ClassPathResource(RULE_CLASSPATH+rule);
KnowledgeBuilder kbuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder();
long startTime=System.currentTimeMillis();
kbuilder.add(resource, ResourceType.DRL );
long endTime=System.currentTimeMillis();
System.out.println(Time taken in add resource in milli
seconds
is::+(endTime-startTime));
KnowledgeBase kbase =
KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(
kbuilder.getKnowledgePackages() );
KnowledgeBuilderErrors errors =
kbuilder.getErrors();
if (errors.size() 0) {
for (KnowledgeBuilderError error: errors) {
System.err.println(error);
}
}
StatelessKnowledgeSession ksession =
kbase.newStatelessKnowledgeSession();
ksession.execute(details);
long methodEndTime=System.currentTimeMillis();
System.out.println(Time taken in Method check in
milli seconds
is::+(methodEndTime-methodStartTime));
}
Here in the check method we have three parameters details this is
the bean
whose properties need to be checked in rules file, rule this is the name of
rules file which contains all the rules.
Here the issue is that it takes around 4 seconds for the first time
and 1
second for all consecutive requests, and 4 second looks too much time for
validating the rules file that has only 10 rules.
Please let me know we have some better way of doing it in drools
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Re: [rules-users] Prevent saving the resource when using guvnorEditorObjRef, in case if validation fails.
AFAIK, there is no way to do what you have described. Feel free to file a new feature request in jira about this. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, May 28, 2012 at 8:44 AM, worldofprasanna worldofprasa...@yahoo.comwrote: Hi All, We have embedded the Guvnor decision table asset into our html page and obtained the guvnorEditorObjRef to validate the new rule which is added. We wrote our business logic within the function, guvnorEditorObjRef.registerBeforeSaveAllButtonCallbackFunction() And it works fine. But the problem is when we find the business validation got failed, we couldn t stop the resource from saving. Check In dialog box opens and we couldn t find a way to prevent it from saving. Is there anyway to prevent the asset from Saving in case, if the validation failed ? Thanks, Prasanna Venkataraman. -- View this message in context: http://drools.46999.n3.nabble.com/Prevent-saving-the-resource-when-using-guvnorEditorObjRef-in-case-if-validation-fails-tp4017580.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 5.3 to 5.4.0.CR1 DSLVariableValue ClassCastException
Thanks a lot Mike, I have a really busy week. I really appreciate your help! Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Apr 23, 2012 at 5:06 PM, jemka je...@tullahoma.de wrote: Hi Mike, thanks for the quick response. Regards Kai. -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-3-to-5-4-0-CR1-DSLVariableValue-ClassCastException-tp3929542p3932741.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 5.3 to 5.4.0.CR1 DSLVariableValue ClassCastException
I tried with a legacy repo when I introduced this feature. It seems that I missed something. A failing repository export would be great in order to start working on this problem. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Sun, Apr 22, 2012 at 6:36 PM, jemka je...@tullahoma.de wrote: Jira Issue: https://issues.jboss.org/browse/GUVNOR-1872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel Am 22. April 2012 12:20 schrieb manstis [via Drools] [hidden email] http://user/SendEmail.jtp?type=nodenode=3930246i=0: https://issues.jboss.org/browse/GUVNOR sent on the move On 22 Apr 2012 11:12, Michael Anstis [hidden email] wrote: Hi, I bet it is that change that causes the problem! Can you please raise a JIRA on GUVNOR (bit JBRULES) and attach a repository export showing the problem? We will have to fix for 5.4.0.Final. sent on the move On 22 Apr 2012 10:39, jemka [hidden email] wrote: Hello, i have noticed following poblem between Guvnor 5.4.0.CR1 and Guvnor 5.3 with this change. Legacy RuleModels cannot be edited anymore and i get following ClassCastException when building the package: Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to org.drools.ide.common.client.modeldriven.brl.DSLVariableValue Maybe caused by following change https://github.com/droolsjbpm/guvnor/pull/30 A description of the error I've created there as a comment. By the way - I'm not sure where to report such a bug, jira - github - mailing list? Regards kai. -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-3-to-5-4-0-CR1-DSLVariableValue-ClassCastException-tp3929542p3929542.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list [hidden email] https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list [hidden email] https://lists.jboss.org/mailman/listinfo/rules-users If you reply to this email, your message will be added to the discussion below: http://drools.46999.n3.nabble.com/Guvnor-5-3-to-5-4-0-CR1-DSLVariableValue-ClassCastException-tp3929542p3929620.html To unsubscribe from Guvnor 5.3 to 5.4.0.CR1 DSLVariableValue ClassCastException, click here. NAML -- View this message in context: Re: [rules-users] Guvnor 5.3 to 5.4.0.CR1 DSLVariableValue ClassCastExceptionhttp://drools.46999.n3.nabble.com/Guvnor-5-3-to-5-4-0-CR1-DSLVariableValue-ClassCastException-tp3929542p3930246.html Sent from the Drools: User forum mailing list archivehttp://drools.46999.n3.nabble.com/Drools-User-forum-f47000.htmlat 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] please provide a rule for events timeout cases
First question: are you using Drools Fusion? If yes, did you try with something like this?: EventRecord(type=EventRequest, id=1) not EventRecord(type=EventResponse, id=1, this after [1s,10s]). I'm using a 10s timeout here. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Fri, Apr 13, 2012 at 3:03 PM, skatta1986 shivaprasad_...@yahoo.co.inwrote: Hi, I would like to write a rule for events timeout case. Consider the events EventRecord(type=EventRequest, id=1) and EventRecord(type=EventResponse, id=1). I have written rules (in .drl file) for correlting the event request with event response. Now I would like to write timeout case. Suppose EventRecord(type=EventRequest, id=2) is not followed by its response. If we doesn't recieve response within 10 seconds, then it is considered as timeout case. I tried to use timers but it doen't work as it is not allowing me write inside when (LHS) pattern. Is there any other way to find timeout cases? -- View this message in context: http://drools.46999.n3.nabble.com/please-provide-a-rule-for-events-timeout-cases-tp3907955p3907955.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] KnowledgeAgent Changeset problems
Could you append the log output of the Knowledge Agent?
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
On Wed, Apr 4, 2012 at 4:12 PM, albertorugnone
arugnonechemi...@gmail.comwrote:
Thank you every body for your answer, unfortunately I was't able to reply
to
you until now because other stuff overwhelmed me literally at work.
Anyway I was going ahead using KnowledgeAgent, following your comments and
other suggestion. Now I am able to load rules applying change set with
KnowledgeAgent (thank you!!!), but honestly this is a poor success because,
even if when I change the rule KnowledgeAgent says incremental build of
KnowledgeBase finished and in use nothing changes.
It seems that changes at rules have no effect and it is pretty weird. I
made
a maven project with eclipse to explain you better my problem. Is a simple
main. I am working for a better junit test. Anyway if you change the rule
in
the folder knowledge you can test the problem by yourself.
Briefly I will explain the project:
Here the code:
_l.warn(START);
String xml = ;
xml += change-set xmlns='
http://drools.org/drools-5.0/change-set'quot;;
xml += quot;
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'quot;;
xml += quot;
xs:schemaLocation='http://drools.org/drools-5.0/change-set
drools-change-set-5.0.xsd' ;
xml += add ;
xml += resource
source='Z:/EXP/drools-test/knowledge/test.drl'
type='DRL' /;
xml += /add ;
xml += /change-set;
FileManager fileManager = new FileManager();
File fxml = fileManager.newFile(changeset.xml);
Writer output = new BufferedWriter(new FileWriter(fxml));
output.write(xml);
output.close();
// build a KnowledgeAgent
ResourceFactory.getResourceChangeNotifierService()
.start();
ResourceFactory.getResourceChangeScannerService()
.start();
final ResourceChangeScannerConfiguration sconf =
ResourceFactory.getResourceChangeScannerService()
.newResourceChangeScannerConfiguration();
sconf.setProperty(drools.resource.scanner.interval, 2);
ResourceFactory.getResourceChangeScannerService()
.configure(sconf);
final KnowledgeAgentConfiguration aconf =
KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
aconf.setProperty(drools.agent.scanDirectories, true);
aconf.setProperty(drools.agent.scanResources, true);
/*
* important newInstance has to be false in order to update
the
* knowledge base and not rebuild a new one
*/
aconf.setProperty(drools.agent.newInstance, false);
final KnowledgeAgent agent =
KnowledgeAgentFactory.newKnowledgeAgent(pch.sel.knowledge.agent, aconf);
// if (_l.isDebugEnabled()) {
/* we need some log every time */
agent.setSystemEventListener(new
PrintStreamSystemEventListener());
agent.applyChangeSet(ResourceFactory.newClassPathResource(pch.sel.kwset.xml));
// fire rules
StatefulKnowledgeSession session =
agent.getKnowledgeBase().newStatefulKnowledgeSession();
session.fireAllRules();
_l.warn(END);
and here the rule
package it.ipiu.drools.KnowledgeAgent.test
rule test rule timer(int: 0s 2s)
when
eval(true);
then
System.out.println(ciao);
end
If I try to change timer from 2s to 2m nothing changes even if
KnowledgeAgent seems to reload all.
*Please help!!! I googled the problem everywhere without solution!!!*
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Re: [rules-users] Drools performance
Model Definition? Rules Definition? How much memory your 100 objects are consuming? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Fri, Mar 30, 2012 at 1:30 PM, Hassan azbak...@gmail.com wrote: Hi everyone, In one of my tests, I inserted 100 objects into the working memory, drools engine made a lot of time to execute the program and it throws Exception : java.lang.OutOfMemoryError !! Please if someone could help me to improve drools performance and specially reduce the drools execution time thanks - Youssef AZBAKH. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-performance-tp3870569p3870569.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] [drools-spring]Incompatibility with jdk 5
That bug that is now fixed in 5.4. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Thu, Mar 29, 2012 at 6:35 PM, jsoula jsoula.li...@gmail.com wrote: Hello, I'm using drools-spring version 5.3.0.Final, jdk 5. During execution, i have this error: Caused by: java.lang.NoSuchMethodError: java.lang.String.isEmpty()Z at org.drools.container.spring.namespace.ResourceDefinitionParser.parseInternal(ResourceDefinitionParser.java:89). Indeed the class ResourceDefinitionParser use String.empty. This is an upgrade from 5.2.1.Final. Is it a bug? Or is the compatibity with jdk5 no more maintained? Thanks. -- View this message in context: http://drools.46999.n3.nabble.com/drools-spring-Incompatibility-with-jdk-5-tp3868254p3868254.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] Exception in thread main java.lang.ClassCastException:
This is a known bug. We are trying to solve it: https://issues.jboss.org/browse/JBRULES-2962 Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Mar 19, 2012 at 9:52 AM, srinivasasanda srinivasasa...@gmail.comwrote: Hi One and All, I used resource scanner in my program to update changes automatically. Every thing works fine. I had one method Method1 to create knowledge base. I had another method Method2 : with an infinite loop where i had a set of facts insert into in command list, and ksession.execute. Now i tested the application whether the changes are applying or not : After adding or modifying rule ,I validate and build package. Now from infinite loop i got an error at line ksession.execute(CommandFactory.newBatchExecution(cmds)); Exception in thread main java.lang.ClassCastException: pricing.specification cannot be cast to pricing.specification at org.drools.base.pricing.specification26362458$getSmsusage.getValue(Unknown Source) at org.drools.base.extractors.BaseObjectClassFieldReader.isNullValue(BaseObjectClassFieldReader.java:179) at org.drools.base.ClassFieldReader.isNullValue(ClassFieldReader.java:179) at org.drools.reteoo.CompositeObjectSinkAdapter$HashKey.setValue(CompositeObjectSinkAdapter.java:606) at org.drools.reteoo.CompositeObjectSinkAdapter$HashKey.init(CompositeObjectSinkAdapter.java:568) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:362) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:215) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:244) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:330) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:291) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:886) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:845) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255) at org.drools.command.runtime.rule.InsertObjectCommand.execute(InsertObjectCommand.java:84) at org.drools.command.runtime.rule.InsertObjectCommand.execute(InsertObjectCommand.java:38) at org.drools.command.runtime.BatchExecutionCommandImpl.execute(BatchExecutionCommandImpl.java:155) at org.drools.command.runtime.BatchExecutionCommandImpl.execute(BatchExecutionCommandImpl.java:76) at org.drools.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:264) at net.treetechnologies.bss.ruleengine.PricingRules.evaluatePriceRules(PricingRules.java:159) at net.treetechnologies.bss.ruleengine.RunRule.price(RunRule.java:184) at net.treetechnologies.bss.ruleengine.RunRule.main(RunRule.java:50) Thanks and regards Srinivasa sanda -- View this message in context: http://drools.46999.n3.nabble.com/Exception-in-thread-main-java-lang-ClassCastException-tp3838503p3838503.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] uploading bpmn file from file system in guvnor
Continuing with Michaels' explanation: once the process editor is open you have to search for a button in the toolbar of the editor that will allow you to import a process providing a a file or simply the content. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Fri, Feb 24, 2012 at 6:44 PM, Michael Anstis michael.ans...@gmail.comwrote: Knowledge Bases (section) - Create New - New BPMN2 process. Assuming you've completed the prerequisites to have jBPM Designer setup to work with Guvnor this should be it. On 24 February 2012 17:35, MALABALU malathi.b...@aciworldwide.com wrote: How to upload/deploy a bpmn from file system into Guvnor? -- View this message in context: http://drools.46999.n3.nabble.com/uploading-bpmn-file-from-file-system-in-guvnor-tp3773186p3773186.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
Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources
I forgot to mention that you will have to change your code a little bit. Instead of passing a KnowledgeBuilderConfiguration to the agent, you will need to add a configuration option to the KnowledgeAgentConfiguration object your are using: aconf.setProperty(drools.agent.useKBaseClassLoaderForCompiling, true); This way you are telling the agent to use the kbase's internal CL (We may set this as the default value I think). If you want to try my fix, this is what you need to do: - Prerequisites: java 1.5 or grater, maven 3.0.3 or grater and git 1.- $git clone git://github.com/droolsjbpm/drools.git drools (It will download all the sources and place them in drools directory) 2.- Get the fix from my repo. Fortunately, the fix is just one file: https://raw.github.com/esteban-aliverti/drools/61c2110df8c55c67ff532491865b3f28f368e8db/drools-core/src/main/java/org/drools/agent/impl/KnowledgeAgentImpl.java 3.- Replace the file /drools-core/src/main/java/org/drools/agent/impl/KnowledgeAgentImpl.java in your working copy with the file you downloaded in the previous step. 4.- $mvn clean install -DskipTests=true (this will compile everything and install the generated artifacts in your local maven repo) This could take some time. 5.- If in your project you are already using maven, then you just need to update the version of your dependencies to 5.4.0-SNAPSHOT. If you are not using maven, then you need to go to your local repo an get the generated drools-core-5.4.0-SNAPSHOT.jar and use it. Best Regards, Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Feb 21, 2012 at 7:52 PM, Hrumph herman.p...@imail.org wrote: Thanks Esteban. I’m not too adept with Git but will see what I can do.*** * ** ** ** ** Herm ** ** *From:* Esteban [via Drools] [mailto:[hidden email]http://user/SendEmail.jtp?type=nodenode=3764501i=0] *Sent:* Tuesday, February 21, 2012 11:10 AM *To:* Herman Post *Subject:* Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources ** ** I added some comments to the issue and provided a possible solution to it. I'm waiting for the review and comments from the core developers. In the meantime, if you have some skills with maven and git and you don't want to wait, you can create your own version of drools applying the provided patch to see if everything is ok. ** ** Best Regards, Esteban Aliverti - Developer @ click here. NAMLhttp://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=macro_viewerid=instant_html%21nabble%3Aemail.namlbase=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespacebreadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml -- View this message in context: RE: [rules-users] KnowledgeAgent custom class loader not working for PKG resourceshttp://drools.46999.n3.nabble.com/KnowledgeAgent-custom-class-loader-not-working-for-PKG-resources-tp3746456p3764501.html Sent from the Drools: User forum mailing list archivehttp://drools.46999.n3.nabble.com/Drools-User-forum-f47000.htmlat 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] KnowledgeAgent custom class loader not working for PKG resources
Are you sure that the binary package was also created with the same drools version you are using in your tests? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Wed, Feb 22, 2012 at 7:39 PM, Hrumph herman.p...@imail.org wrote: I have a 5.4.0-SNAPSHOT version with your changes built and made the KnowledgeAgentConfiguration change you suggested. My test code is now like this: ** ** KnowledgeAgentConfiguration aconf = KnowledgeAgentFactory.newKnowledgeAgentConfiguration(); aconf.setProperty(drools.agent.useKBaseClassLoaderForCompiling, true); // new // KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent(test, kbase, aconf, kbuilderConfig); KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent(test, kbase, aconf); // not passing kBuilderConfig ** ** My project is attached – let me know if it doesn’t upload. ** ** I can see I’m stepping threw your new code, and I’m now getting a new error, below. ** ** I can also tell you that we tried to just use the KnowledgeBuilder with custom classloader as in the Expert documentation (4.1.1) and could not get that to work either. Stack trace follows: ** ** java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:770) at org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1029) at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:812) at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:671) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:202) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:181) at drools.cookbook.chapter02.KnowledgeAgentClassloaderTest.createKnowledgeBase(KnowledgeAgentClassloaderTest.java:62) at drools.cookbook.chapter02.KnowledgeAgentClassloaderTest.customClassloaderTest(KnowledgeAgentClassloaderTest.java:30) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:59) at org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:98) at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:79) at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:87) at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77) at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42) at org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88) at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51) at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44) at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27) at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)** ** at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.io.OptionalDataException at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1367) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369
Re: [rules-users] Declared model and drools.agent.newInstance
There is a known bug with incremental kbase changes (what happens when drools.agent.newInstance=false) and declared types. Sometime ago someone mentioned a possible workaround. Try to search in the mailing list. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Feb 21, 2012 at 12:25 PM, Juanker Atina juank...@gmail.com wrote: Hi there, I want to work with declared facts, inside drl file, but when i set drools.agent.newInstance property to false, it seems that drools won't work with this specific fact. My code stops working when i put this two lines, KnowledgeAgentConfiguration aconf = KnowledgeAgentFactory.newKnowledgeAgentConfiguration(); aconf.setProperty(drools.agent.newInstance, false); And it works fine when i remove these lines. So, I've read that this property is related to new instances of KnowledgeBase when resources changes... cp from: http://grepcode.com/file/repository.jboss.org/maven2/org.drools/ drools-api/5.0.0.M4/org/drools/agent/KnowledgeAgentFactory.java *aconf.setProperty( drools.agent.newInstance, true ); // resource changes results in a new instance of the KnowledgeBase being built, // this cannot currently be set to false for incremental building* Hence, why is this property changing the behaviour of the rules? (See this thread too, http://drools.46999.n3.nabble.com/rules-users-Truth-maintenance-and-RHS-variables-tt3722632.html#a3731857 ) ___ 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] KnowledgeAgent custom class loader not working for PKG resources
I added some comments to the issue and provided a possible solution to it. I'm waiting for the review and comments from the core developers. In the meantime, if you have some skills with maven and git and you don't want to wait, you can create your own version of drools applying the provided patch to see if everything is ok. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Feb 21, 2012 at 4:56 PM, Hrumph herman.p...@imail.org wrote: Great! ** ** https://issues.jboss.org/browse/JBRULES-3388** ** ** ** ** Herm ** ** *From:* Esteban [via Drools] [mailto:[hidden email]http://user/SendEmail.jtp?type=nodenode=3763942i=0] *Sent:* Monday, February 20, 2012 2:30 AM *To:* Herman Post *Subject:* Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources ** ** Hi Herman, I'm working on this issue right now. Did you create the jira issue? Could you please send me the link? ** ** Best Regards, Esteban Aliverti - Developer @ click here. NAMLhttp://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=macro_viewerid=instant_html%21nabble%3Aemail.namlbase=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespacebreadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml -- View this message in context: RE: [rules-users] KnowledgeAgent custom class loader not working for PKG resourceshttp://drools.46999.n3.nabble.com/KnowledgeAgent-custom-class-loader-not-working-for-PKG-resources-tp3746456p3763942.html Sent from the Drools: User forum mailing list archivehttp://drools.46999.n3.nabble.com/Drools-User-forum-f47000.htmlat 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] KnowledgeAgent custom class loader not working for PKG resources
Hi Herman, I'm working on this issue right now. Did you create the jira issue? Could you please send me the link? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Sat, Feb 18, 2012 at 1:46 PM, Hrumph herman.p...@imail.org wrote: http://drools.46999.n3.nabble.com/file/n3756244/knowledge-agent-classloader-5.4.zip knowledge-agent-classloader-5.4.zip Attached...thanks. -- View this message in context: http://drools.46999.n3.nabble.com/KnowledgeAgent-custom-class-loader-not-working-for-PKG-resources-tp3746456p3756244.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] Adding a List(CollectionFramework) datatype in DeclarativeModel
Just do not select anything in the combo-box and write the fqn of the type you want to use: i.e. java.util.List Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Feb 20, 2012 at 9:51 AM, Veera veera...@gmail.com wrote: Hi All, While creating Fact fields in Declarative Model the options are : Whole Number,text,Date,Decimal,true/false , So is it possible to add a List(CollectionFramework) Datatype in that. Thanks, Veera -- View this message in context: http://drools.46999.n3.nabble.com/Adding-a-List-CollectionFramework-datatype-in-DeclarativeModel-tp3760157p3760157.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 5.4.0.Beta2 launch Error.
Do you see any suspicious log in Tomcat's logs? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Feb 21, 2012 at 1:42 AM, Monline online.re...@gmail.com wrote: Hi, Just wondering if anyone has any experience with the following scenario and if so, did you find a solution? 1. I deployed this Beta2 version successfully onto Tomcat. 2. Then during the launch the following error message popped up: - 400 Sorry, a technical error occurred. Please contact a system administrator. Thanks in advance... -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-4-0-Beta2-launch-Error-tp3762321p3762321.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] ConsequenceException when using modify
Just out of curiosity, if you change your modify block and use an updeat instead, does it work? Something like: $myObject.setVariable1(defaultValue); update($myObject); Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Thu, Feb 16, 2012 at 5:14 PM, Vakimshaar jean.loge...@gmail.com wrote: That's not what is in the doc: Documentation wrote All operators have normal Java semantics except for == and !=. The == operator has null-safe equals() semantics: // Similar to: java.util.Objects.equals(person.getFirstName(), John) // so (because John is not null) similar to: // John.equals(person.getFirstName()) Person( firstName == John ) And still, actually the MyObject class is actually wrapper to the ActualObject class. The getters and setters are basically simple wrapped. -- View this message in context: http://drools.46999.n3.nabble.com/ConsequenceException-when-using-modify-tp3750604p3750755.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] KnowledgeAgent custom class loader not working for PKG resources
Seems like a bug to me. The best you can do is to rise a Jira issue. Actually, the best you can do is to provide a patch also ;) Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Thu, Feb 16, 2012 at 5:59 PM, Hrumph herman.p...@imail.org wrote: Sorry for being a nuisance, but unless we are doing something wrong, this is a significant issue for us. We are trying to deploy Drools on a remote server and hope to pull PKG Changesets and Fact models from Guvnor. It is essential that we can use custom Classloaders in our design. Should I just enter this in Jira? Thanks, Herm -- View this message in context: http://drools.46999.n3.nabble.com/KnowledgeAgent-custom-class-loader-not-working-for-PKG-resources-tp3746456p3750972.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] KnowledgeAgent custom class loader not working for PKG resources
By the way, in the stacktrace you pasted I only see a NullPointerException, but no ClassNotFoundException. Where are you seeing the ClassNotFoundException? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/16 Herman Post herman.p...@imail.org Thanks Esteban, I will enter in Jira. ** ** ** ** Herm ** ** *From:* rules-users-boun...@lists.jboss.org [mailto: rules-users-boun...@lists.jboss.org] *On Behalf Of *Esteban Aliverti *Sent:* Thursday, February 16, 2012 10:07 AM *To:* Rules Users List *Subject:* Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources ** ** Seems like a bug to me. The best you can do is to rise a Jira issue. Actually, the best you can do is to provide a patch also ;) ** ** Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Thu, Feb 16, 2012 at 5:59 PM, Hrumph herman.p...@imail.org wrote: Sorry for being a nuisance, but unless we are doing something wrong, this is a significant issue for us. We are trying to deploy Drools on a remote server and hope to pull PKG Changesets and Fact models from Guvnor. It is essential that we can use custom Classloaders in our design. Should I just enter this in Jira? Thanks, Herm -- View this message in context: http://drools.46999.n3.nabble.com/KnowledgeAgent-custom-class-loader-not-working-for-PKG-resources-tp3746456p3750972.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
Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources
Could you please try using 5.4.0-SNAPSHOT? I tried to reproduce your error in that version, but I couldn't. Using 5.3.1 I experienced the error you mentioned. Please note that in order to change drools version you need to have a binary .pkg compiled using the same version. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/16 Herman Post herman.p...@imail.org In debug, KnowledgeAgentImpl.createPackageFromResource(), the last line to run is DroolsStreamUtils.streamIn(is), then an excecption is caught:*** * ** ** *this*.listener.exception( *new* RuntimeException( KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage , ex)); ** ** The exception here says “java.lang.ClassNotFoundException: org.ihc.hwcir.drools.facts.Patient”, which is my Fact model. It doesn’t seem to get surfaced anywhere. ** ** As my sample illustrates, if I switch to DRL changeset, or put Patient.jar on classpath all works fine. ** ** Thanks, ** ** Herm ** ** *From:* rules-users-boun...@lists.jboss.org [mailto: rules-users-boun...@lists.jboss.org] *On Behalf Of *Esteban Aliverti *Sent:* Thursday, February 16, 2012 10:33 AM *To:* Rules Users List *Subject:* Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources ** ** By the way, in the stacktrace you pasted I only see a NullPointerException, but no ClassNotFoundException. Where are you seeing the ClassNotFoundException? ** ** Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/16 Herman Post herman.p...@imail.org Thanks Esteban, I will enter in Jira. Herm *From:* rules-users-boun...@lists.jboss.org [mailto: rules-users-boun...@lists.jboss.org] *On Behalf Of *Esteban Aliverti *Sent:* Thursday, February 16, 2012 10:07 AM *To:* Rules Users List *Subject:* Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources Seems like a bug to me. The best you can do is to rise a Jira issue. Actually, the best you can do is to provide a patch also ;) Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Thu, Feb 16, 2012 at 5:59 PM, Hrumph herman.p...@imail.org wrote: Sorry for being a nuisance, but unless we are doing something wrong, this is a significant issue for us. We are trying to deploy Drools on a remote server and hope to pull PKG Changesets and Fact models from Guvnor. It is essential that we can use custom Classloaders in our design. Should I just enter this in Jira? Thanks, Herm -- View this message in context: http://drools.46999.n3.nabble.com/KnowledgeAgent-custom-class-loader-not-working-for-PKG-resources-tp3746456p3750972.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
Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources
Could you please upload you failing test project using 5.4 so I can test it? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/16 Hrumph herman.p...@imail.org Regretably, I’m still getting the same error with 5.4.0.Beta2. I did rebuild my PKG in 5.4.0.Beta2 Guvnor and switched my Drools dependencies over to 5.4.0.Beta2 in my sample app pom too. ** ** Is your 5.4.0 Snapshot later than this, and possibly it was fixed since Beta2? ** ** Thanks, ** ** Herm ** ** *From:* Esteban [via Drools] [mailto:[hidden email]http://user/SendEmail.jtp?type=nodenode=3752041i=0] *Sent:* Thursday, February 16, 2012 12:05 PM *To:* Herman Post *Subject:* Re: [rules-users] KnowledgeAgent custom class loader not working for PKG resources ** ** Could you please try using 5.4.0-SNAPSHOT? I tried to reproduce your error in that version, but I couldn't. Using 5.3.1 I experienced the error you mentioned. Please note that in order to change drools version you need to have a binary .pkg compiled using the same version. ** ** Best Regards, Esteban Aliverti - Developer @ click here. NAMLhttp://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=macro_viewerid=instant_html%21nabble%3Aemail.namlbase=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespacebreadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml -- View this message in context: RE: [rules-users] KnowledgeAgent custom class loader not working for PKG resourceshttp://drools.46999.n3.nabble.com/KnowledgeAgent-custom-class-loader-not-working-for-PKG-resources-tp3746456p3752041.html Sent from the Drools: User forum mailing list archivehttp://drools.46999.n3.nabble.com/Drools-User-forum-f47000.htmlat 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] Failed to get rules from Guvor after apply Security using Tomcat and JAAS
Please search in this list about this problem. Your question has been answered before. I think the documentation also has a section about how to add security elements to the change-set. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/15 mujoko mujoko mujoko.muj...@gmail.com Dear Rules Users, Previously, I use guvnor with no security. Now, my boss wants me to apply security on guvnor. The way I implement is use this link http://ngjweb.wordpress.com/2011/12/07/drools-guvnor-manage-access-part-2/ which is using realm of tomcat and create a table is the system for guvnor user. I tested from browser, the security is working fine even more than 10 users access concurrently. But when my application access the guvnor and try to create the knowledge base. It's becoming intermittent. After several time access the guvnor, the guvnor is hang/can not access even from browser. Here is the exception I got java.lang.RuntimeException: java.io.IOException: Server returned HTTP response code: 401 for URL: http://localhost:9090/guvnor/org.drools.guvnor.Guvnor/package/com.rbtsb.tm.meter/meter-internet/Dro pCDR-LocalcallWithBRemarks.drl at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:692) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37 The way our app access the guvnor after apply security is as below. Snipped Code UrlResource urlResource = (UrlResource) ResourceFactory.newUrlResource(ruleUrl); urlResource.setBasicAuthentication(enabled); urlResource.setUsername(admin); urlResource.setPassword(admin); builder.add(urlResource,ResourceType.DRL); -- Mujoko http://www.linkedin.com/in/mujoko ___ 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] make the Guvnor interface into French
As Michael said, Guvnor already has French support. All you have to do is to configure your browser to use French or to append ?locale=fr_FRhttp://www.example.org/myapp.html?locale=fr_FR in Guvnor's URL. @Vincent, if you don't want to do a clone-fork-pull-request you can post the file here. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/13 freelance developpement developpement.freela...@gmail.com hi Michael Anstis, Can you tell me in detail how to make the interface in French, it is urgent and I have not understood your answer. Thanks in advance. 2012/2/12 Michael Anstis michael.ans...@gmail.com Translations are always welcome :) If you can ensure translations are up to date (there have been many more additions to master) I can push the file for you. Thanks, Mike sent on the move On 12 Feb 2012 20:59, Vincent LEGENDRE vincent.legen...@eurodecision.com wrote: Yes, there is me ! I even have a fresh newly updated french file (for 5.3.0.Final version), as the one in actual guvnor date from my last translation for 5.1 (parts are french, parts are english, which does not look very good). I was thinking of updating the former JIRA with the new file ? Should I create a new JIRA ? Can I simply post here and you make the git push ? Do I really need to fork the git repo for that ? -- *De: *Michael Anstis michael.ans...@gmail.com *À: *Rules Users List rules-users@lists.jboss.org *Envoyé: *Dimanche 12 Février 2012 17:34:15 *Objet: *Re: [rules-users] make the Guvnor interface into French Guvnor comes with a fr_FR locale translation. Provided your PC locale settings are fr_FR and you are using the WAR provided in the Guvnor distribution you should see French already. Alternatively, you can override your PC's locale by providing the locale in the URL; e.g. http://www.example.org/myapp.html?locale=fr_FR I know of one community user who has been using fr_FR for sometime. On 12 February 2012 15:08, Mauricio Salatino sala...@gmail.com wrote: You should provide a translated to french properties file and the compile it against that language. Some of the guvnor guys should point you to where that localization properties file is inside the drools guvnor source code. Cheers 2012/2/12 freelance developpement developpement.freela...@gmail.com: Hi every one, For simplicity I must make the interface Guvnor for administration of business rules, in French and not English under Internet Explorer or Firefox. Have you ant idea? thanx in advance ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jugargentina.org - Co-Founder @ http://www.jbug.com.ar - Salatino Salaboy Mauricio - ___ 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
Re: [rules-users] Call of a function in the definition of a rule template
If you are dealing with non-technical people, maybe you could also use a DSL sentence to hide the function call. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/13 Michael Anstis michael.ans...@gmail.com Your best bet would be to use a free-form DRL fragment in the Template UI and call the function as you would using DRL. Alternatively, feel free to look at https://issues.jboss.org/browse/GUVNOR-1435 and submit a pull request :) 2012/2/13 freelance developpement developpement.freela...@gmail.com No it's not a method defined in a java class, but it is a function defined in Guvnor using the Create new function. I want to call this function when I am trying to define a rule template. 2012/2/13 Wolfgang Laun wolfgang.l...@gmail.com 2012/2/13 freelance developpement developpement.freela...@gmail.com I have not understood your answer, what I meant was ,for example i had a program function Do you mean a public static method in some Java Class? You should be able to define an import function, even in Guvnor. -W utiliser une fonction dans une rule n'est pas appeler une fonction pour d´efiner une rule that returns me the max and I want to make it available to one who will create the business rule .It goes like that when access to the creation of a new rule template and not technical (he knows not to programming) it will use this function already defined in the create new Function. please do you know how to make this call? thanks in advance 2012/2/13 Wolfgang Laun wolfgang.l...@gmail.com It is not so easy to create rules programmatically (if that's what you mean). You could use the experimental (unstable) fluent API (see 2.2.2.6. Rule API in the Drools Introduction and General User Guide), but this is a rather inconvenient way of accumulating strings to create a package. I'd rather create a String and feed the DRL compiler with it, but YMMV. -W 2012/2/13 freelance developpement developpement.freela...@gmail.com Hi every one, I defined a function in Guvnor and I want to call it to define a rule template. But I do not know how. Have you any ideas? Thank you in advance ___ 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] (no subject)
I had some tests working fine in jbpm 5.1 but failing in 5.3 because of
this same reason. I'm not sure if this is this is a regression bug or if
there is a deliberated change in the behavior.
Maybe someone in the jbpm dev team can shed some light here.
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
2012/2/13 Alberto R. Galdo arga...@gmail.com
According to the documentation:
Rule constraints do not have direct access to variables defined inside
the process.
It is however possible to refer to the current process instance inside a
rule constraint,
by adding the process instance to the Working Memory and matching for the
process instance in your rule constraint.
We have added special logic to make sure that a variable processInstance
of type WorkflowProcessInstance
will only match to the current process instance and not to other process
instances in the Working Memory.
Note that you are however responsible yourself to insert the process
instance into the session and,
possibly, to update it, for example, using Java code or an on-entry or
on-exit or explicit action in your process.
The following example of a rule constraint will search for a person with
the same name as the value stored in the variable name of the process:
This however does not seem to be true.
The first rule is to receive a stream of objects of type MyObject.
This rule starts an associated process.
The second rule will be called by the process (from bpmn).
Within the process there a task that invokes an an asynchronous service,
ie,
an implementation of WorkItemHandler that contains a Thread that will set
call
manager.completeWorkItem(workItemId,results);
when 30s have passed).
With this setup we can observe what happens when 2 MyObject instances come
into the first rule separated by a short period of time (say 5 seconds).
When the first object comes in a process is created and started (with
process id=1)
The process passes from the start node to the callMyTask node, which
invokes the slow WorkItemHandler references by MyTask
(which we have previously registered into session.getWorkItemManager() ).
Because the WorkItemHandler has a thread that waits 30s before completing
the work item, it just sits there doing nothing (so far everything is ok)
and allows the engine to process other events.
5 seconds later we insert another MyObject into the stream.
The first rule gets fired and created another process (with process id=2).
The process passes from the start node to the callMyTask node, which
invoke our slow service.
We have thus two processes running in parallel.
When the first callMyTask node completes, the next node completeTask is
invoked.
The rule process complete is matched as it belongs to the rule flow
group Complete task group.
At this point we observe that the rule is matched twice spitting out:
processInstance.id 2
processInstance.id 1
.
So the rule has matched both process instances that are in working memory
and not just the one (with process id 1)
that called the process complete rule.
The rule file
-
rule New case
when
$myobject : MyObject(processed==false) from entry-point myobject
stream
then
ProcessInstance
processInstance=kcontext.getKnowledgeRuntime().createProcessInstance(com.mycompany.process.MyProcess,
parameters);
insert(processInstance);
kcontext.getKnowledgeRuntime().startProcessInstance(processInstance.getId());
modify ($myobject){
setProcessed(true)
}
end
rule process complete
ruleflow-group Complete task group
no-loop true
when
$processInstance: WorkflowProcessInstance()
then
System.out.println(processInstance.id +
$processInstance.getId());
end
The BPMN xml
?xml version=1.0 encoding=UTF-8?
definitions id=Definition
targetNamespace=http://www.jboss.org/drools;
typeLanguage=http://www.java.com/javaTypes;
expressionLanguage=http://www.mvel.org/2.0;
xmlns=http://www.omg.org/spec/BPMN/20100524/MODEL;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=
http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd
xmlns:g=http://www.jboss.org/drools/flow/gpd;
xmlns:bpmndi=http://www.omg.org/spec/BPMN/20100524/DI;
xmlns:dc=http://www.omg.org/spec/DD/20100524/DC;
xmlns:di=http://www.omg.org/spec/DD/20100524/DI;
xmlns:tns=http://www.jboss.org/drools;
process processType=Private isExecutable=true
id=com.mycompany.process.MyProcess name=my process
!-- process variables --
!-- nodes --
startEvent id=start name=StartProcess /
task id=callMyTask name=call my task tns:taskName
Re: [rules-users] (no subject)
The behavior you described is how it is working in 5.3 (and it seems 5.2 too). The rule is fired once per process instance you have in your working memory no matter if the others instances are, are not yet or even has already been in that Rule Task Node. Again, I'm not sure if this is a deliberated feature or a bug, but according to the documentation, it is a bug. One workaround could be that the process inserts a control fact containing its own id right before the Task Node is ejecuted (this could be done in a listener or in the on-entry action property of the node). Your rule then will look like this: rule process complete ruleflow-group Complete task group when $ControlFact($id: processIntanceId) $processInstance: WorkflowProcessInstance(instanceId == $id) then System.out.println(processInstance.id + $processInstance.getId()); retract ($id) end Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/13 Alberto R. Galdo arga...@gmail.com We're using 5.2.0 final here. What we are also observing is that whenever a process instance reaches a businessruletask node the rule gets fired a number of times equal to the number of instantiated processes even if any of those processes didn't reach the bussinessruletask node. Does this means that whenever a businessruletask is reached in any of the current process instance, the rule gets fired for *all* the instances of the process and subsequent businessruletask nodes won't fire anything? 2012/2/13 Esteban Aliverti esteban.alive...@gmail.com I had some tests working fine in jbpm 5.1 but failing in 5.3 because of this same reason. I'm not sure if this is this is a regression bug or if there is a deliberated change in the behavior. Maybe someone in the jbpm dev team can shed some light here. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/13 Alberto R. Galdo arga...@gmail.com According to the documentation: Rule constraints do not have direct access to variables defined inside the process. It is however possible to refer to the current process instance inside a rule constraint, by adding the process instance to the Working Memory and matching for the process instance in your rule constraint. We have added special logic to make sure that a variable processInstance of type WorkflowProcessInstance will only match to the current process instance and not to other process instances in the Working Memory. Note that you are however responsible yourself to insert the process instance into the session and, possibly, to update it, for example, using Java code or an on-entry or on-exit or explicit action in your process. The following example of a rule constraint will search for a person with the same name as the value stored in the variable name of the process: This however does not seem to be true. The first rule is to receive a stream of objects of type MyObject. This rule starts an associated process. The second rule will be called by the process (from bpmn). Within the process there a task that invokes an an asynchronous service, ie, an implementation of WorkItemHandler that contains a Thread that will set call manager.completeWorkItem(workItemId,results); when 30s have passed). With this setup we can observe what happens when 2 MyObject instances come into the first rule separated by a short period of time (say 5 seconds). When the first object comes in a process is created and started (with process id=1) The process passes from the start node to the callMyTask node, which invokes the slow WorkItemHandler references by MyTask (which we have previously registered into session.getWorkItemManager() ). Because the WorkItemHandler has a thread that waits 30s before completing the work item, it just sits there doing nothing (so far everything is ok) and allows the engine to process other events. 5 seconds later we insert another MyObject into the stream. The first rule gets fired and created another process (with process id=2). The process passes from the start node to the callMyTask node, which invoke our slow service. We have thus two processes running in parallel. When the first callMyTask node completes, the next node completeTask is invoked. The rule process complete is matched as it belongs to the rule flow group Complete task group. At this point we observe that the rule is matched twice spitting out: processInstance.id 2 processInstance.id 1 . So the rule has matched both process instances that are in working memory and not just the one (with process id 1) that called the process complete rule. The rule file - rule New case when $myobject : MyObject(processed==false) from
Re: [rules-users] GUVNOR
Deploy the war Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/9 Olfa h h.olf...@gmail.com HI , how to install DROOLS Guvnor ? ___ 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] 5.3 ruleflow question
ruleflow term is kind of deprecated since jBPM5 emerged as a separate project :) The correct term now should be process or business process. These are the minimal dependencies you need if you want to use processes and rules in your applications: dependency groupIdorg.drools/groupId artifactIdknowledge-api/artifactId version5.4.0-SNAPSHOT/version typejar/type /dependency dependency groupIdorg.drools/groupId artifactIddrools-core/artifactId version5.4.0-SNAPSHOT/version /dependency dependency groupIdorg.drools/groupId artifactIddrools-compiler/artifactId version5.4.0-SNAPSHOT/version /dependency dependency groupIdorg.jbpm/groupId artifactIdjbpm-bpmn2/artifactId version5.3.0-SNAPSHOT/version /dependency dependency groupIdorg.jbpm/groupId artifactIdjbpm-flow/artifactId version5.3.0-SNAPSHOT/version /dependency dependency groupIdorg.jbpm/groupId artifactIdjbpm-flow-builder/artifactId version5.3.0-SNAPSHOT/version /dependency Please note that org.jbpm artifact's versions (5.3.0-SNAPSHOT) are different from org.drools (5.4.0-SNAPSHOT) Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/7 St. Lawrence, Zachary zstla...@akamai.com I am trying to use ruleflows to test a different approach to a problem but I am having problems finding the right implementing jars for use in my maven imports. In 5.2 the needed builder classes were in jbpm-flow-builder. But 5.3 doesn't have that package. How does one use ruleflows in the most recent release of drools? Zack ___ 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] Rule does not fire when JBPM asks to do so in BPMN 2.0 process
This is a tricky one :)
What is happening is that you are running the process first and inserting
the process instance later.
When the process is started, it runs until it finds the Rule Task. At that
point, since there is no activation for any of the rules in jobs
group (there is no ProcessInstance inserted yet, so there is no activation
for job complete rule) the execution continues (since you are already
inside a fireAllRules() invocation) until the process reaches the end or a
wait-state. At that point, the control is returned to the original rule
that started the process and the ProcessInstance is finally inserted.
What you can do is to split the creation of the process instance and its
execution:
rule New case
when
$case : Case(processed==false) from entry-point case stream
then
modify ($case){
setProcessed(true)
}
[ processing code omitted ... ]
//create the instance, but don't start it yet
ProcessInstance processInstance
= kcontext.getKnowledgeRuntime().createProcessInstance(com.mycompany.Process,
parameters);
//insert the instance in the WM: this will create the activation of
the other rule
insert(processInstance);
//now, start the process
kcontext.getKnowledgeRuntime().startProcessInstance(processInstance.getProcessInstance());
end
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
2012/2/8 Alberto R. Galdo arga...@gmail.com
I'm afraid I can't publish as it is, but I hope this would give you a hint:
myrules.drl:
rule New case
when
$case : Case(processed==false) from entry-point case stream
then
modify ($case){
setProcessed(true)
}
[ processing code omitted ... ]
insert(kcontext.
getKnowledgeRuntime().startProcess(com.mycompany.Process, parameters));
end
rule job complete
ruleflow-group jobs group
when
$processInstance: WorkflowProcessInstance()
then
Job job = (Job)$processInstance.getVariable(var);
update(job);
end
process.bpmn:
?xml version=1.0 encoding=UTF-8?
definitions
process processType=Private isExecutable=true
id=com.mycompany.Process name=process
[one start node and lots of nodes here, one that ends in the next ]
businessRuleTask g:ruleFlowGroup=jobs group id=job complete
name=complete job/
[ lots of nodes after, ending in an end node]
/process
/definitions
As you can see the rule New case is not in any group and is responsible
( if it is the case ) of launching the process, and then that process
invokes the bussinessrule group jobs group. As stated, what we see is
that the rule job complete never gets fired.
Alberto R. Galdo
arga...@gmail.com
Alberto R. Galdo
arga...@gmail.com
On Tue, Feb 7, 2012 at 21:16, Mauricio Salatino sala...@gmail.com wrote:
businessRuleTask who tries to fire a rule in drools ant that rule
are not in the same group can you share the process definition and
the rule?
2012/2/7 Alberto R. Galdo arga...@gmail.com:
Hi,
The rule that inserts the process which has the node
businessRuleTask
who tries to fire a rule in drools ant that rule are not in the same
group.
In fact, the rule that should be fired is the only rule in that group
and
should only be fired by the process itself.
What we are trying to do is to update the state of a fact inside
drools
with information gathered in the BPM process. Maybe I am getting this
wrong,
but, Is there another way to accomplish this?
Greets,
Alberto R. Galdo
arga...@gmail.com
On Tue, Feb 7, 2012 at 19:23, Mauricio Salatino sala...@gmail.com
wrote:
Hi are you using the same rule flow-group in the businessRuleTask and
in your rule? can you share the rule that you are using?
remember that the evaluation will be done by the engine as soon as the
information comes in. The rule flow group will only execute something
if a rule was activated inside the rule flow group of your
businessRuleTask.
Cheers
On Tue, Feb 7, 2012 at 2:23 PM, argaldo arga...@gmail.com wrote:
Hi,
We're running an application that uses Drools + JBPM 5 + Drools
integration our set-up can be seen as:
Some rule fires and creates a JBPM process ( a fact gets inserted
into
drools using kcontext.getKnowledgeRuntime().startProcess() ),
after a
few
nodes processed, the JBPM engine arrives to a node of type
businessRuleTask which in turn tells drools to evaluate a group of
rules (
which at the moment consists on only one rule ).
Well, the problem is that what we see is that everything runs ok
before
the businessRuleTask and at the moment when the rule group would be
evaluated we could see that in drools the rule gets created,
activated,
but
never fired.
We
Re: [rules-users] [rules-dev] http://blog.athico.com/2012/02/welcome-alexandre-porcelli.html
Congratulation Alexandre! Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Feb 7, 2012 at 3:44 PM, Mark Proctor mproc...@codehaus.org wrote: http://blog.athico.com/2012/02/welcome-alexandre-porcelli.html ___ rules-dev mailing list rules-...@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] how to retract all documents created in the following scenario
Did you try using Java dialect instead of MVEL?
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
On Thu, Feb 2, 2012 at 11:47 PM, vadlam sreeram.vadlam...@wellsfargo.comwrote:
when
$emptyDocs:java.util.List(size0) from collect ( Document( field1== null ||
== ( ) , field2 == null || == ( ) ) )
then
//insert an error
Error fact0 = new Error();
fact0.setErrorCode( code1 );
insert(fact0 );
for (int i=0; i $emptyDocs.size(); i++){
retract( $emptyDocs.get(i));
}
end
when I do a validate on this, I get an error as below
unable to resolve method using strict-mode:
org.drools.spi.KnowledgeHelper.$emptyDocs()] [Near : {... for (int i=0; i
$emptyDocs.size(); i++){ }]
am I making a mistake somewhere ?
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Re: [rules-users] Ruleflow: two flow exits (or equivalent?) from reusable sub-process?
One simple solution would be to define a boolean output variable in your sub-process. When you use the sub-process in a bigger process you can map the boolean output to a process variable and connect a Gateway to the sub-process that evaluates the variable. You can emulate this behavior using events as well. Define a throw event node in your sub-process and attach a boundary event to it in the parent process. Best Regards. Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/2/2 George Georgovassilis g.georgovassi...@gmail.com Hello list, I modeled (v5.3) a reusable sub-process which can either finish in a desired state (i.e. validations ok) or an undesired state (some validations failed and I need to route to a different flow). Ideally the sub-process would allow for two outgoing connections, but as far as I see that is currently not possible. Can anybody advise on how to achieve a similar functionality? Is there a chance I could build a workitem that extends the reusable sub-process but allows for two exit connections, and if yes, how? Can signals or fault nodes achieve a similar effect and if yes, then how? Thanks in advance, G. ___ 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] ChangeSet not working for Package Type
Could you please post the change-set you are using along with the error you are getting? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Fri, Feb 3, 2012 at 12:47 PM, Mark Proctor mproc...@codehaus.org wrote: unit tests say otherwise: https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/xml/changeset/ChangeSetTest.java If you think you have found a bug, you'll need to submit a pull request with additions to the above test class showing your problem. Mark On 03/02/2012 17:11, ponmanirajan wrote: I tried an application which gets the rule names using changeset.xml. In changeSet.xml, i given the resource type as PKG and it is not working fine. but when i give the Type as DRL it is working fine. is any tips for me to run this case? My system has 64-bit OS. is it a problem? In 32-bit OS system, the same is running finely. can anyone help me? thanks in advance. -- View this message in context: http://drools.46999.n3.nabble.com/ChangeSet-not-working-for-Package-Type-tp3712795p3712795.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
Re: [rules-users] [rules-dev] Contributing to Drools?
Same thing here. Count on me for that! It is a good excuse to visit London :) Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Fri, Feb 3, 2012 at 12:57 PM, Mario Fusco mario.fu...@gmail.com wrote: That sounds a great idea. I don't come to London since too much time now, so I'd finally have a very good reason to come :) I am also looking forward to meet the other guys of the Drools team in person. Mario On Fri, Feb 3, 2012 at 12:48 PM, Mauricio Salatino sala...@gmail.comwrote: Count with me for that.. I always willing to do this kind of hackatons and long coding nights.. Mark is it time to create a Drools User Group in London? a Drools Lab maybe? Cheers On Fri, Feb 3, 2012 at 8:07 AM, Mark Proctor mproc...@codehaus.org wrote: I've tried to organise these before, last time I had one person turn up :) I live in London and Michael Anstis is near by. Mauricio Salatino will be moving near by in March too. If there are people who are genuinely interested in learning to hack/improve DroolsjBPMGuvnor, and not just after free consultancy, we can arrange days and evenings in London. The Red Hat office is on Baker Street and has a room suitable for about 8 people. I live in Chiswick and will gladly meet up with anyone at any time there, night or day. I regularly work from nero's of starbucks :) Also remember the entire DroolsjBPMGuvnor team is always available on irc. http://www.jboss.org/drools/irc Mark On 03/02/2012 15:49, Stephen Masters wrote: Hi folks, As with Mark's response on OSGI this morning, there have been a number of answers to questions on this list that mention that components are either not currently being worked on, or which request that users contribute new features or patches. It tends not to be that easy to get to grips with a large open source project, so recently the London Java Community organised an OpenJDK hack session (http://www.meetup.com/Londonjavacommunity/events/49243872/) where they were helping people to build the projects and working on some 'low-hanging-fruit' issues. And apparently the session produced around 20 patches, which seems pretty impressive to me given that it was just a 3-hour evening session. There seems to be a reasonable number of Drools developers and users in or near London, although I'm not sure about other locations. So I was wondering how feasible it might be to organise something similar around Drools. Obviously it would need a combination of some core developers prepared to spend some of their time helping folks such as myself get to grips with building and testing things, and enough developers interested in spending their spare time learning their way around the internals of the various Drools components. The London JBoss User Group set up a JBoss AS7 hackathon last year, so perhaps there might be someone there who would be prepared to help out? Any thoughts? Steve ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-dev mailing list rules-...@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jugargentina.org - Co-Founder @ http://www.jbug.com.ar - Salatino Salaboy Mauricio - ___ rules-dev mailing list rules-...@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev ___ rules-dev mailing list rules-...@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] how to retract all documents created in the following scenario
You could do something like this:
rule 'empty documents'
...
when
$emptyDocs: List(size0) from collect ( Document( field1== null || == (
) , field2 == null || == ( ) ) )
then
//insert an error
Error fact0 = new Error();
fact0.setErrorCode( code1 );
insert(fact0 );
//retract empty documents
for (int i=0; i $emptyDocs.size(); i++){
retract( $emptyDocs.get(i));
}
end
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
On Thu, Feb 2, 2012 at 9:59 PM, vadlam sreeram.vadlam...@wellsfargo.comwrote:
Hi All,
we have a scenario whereby, several documents are created as part of the
ruleflow. at the end of the ruleflow, if any of the fields in the document
is empty or null, we would like to create a error (only one error) and
retract all the documents so far.
rule createError
ruleflow-group mrHardErrors
no-loop true
dialect mvel
when
emptyDoc : Document( field1== null || == ( ) , field2 == null || == (
) )
doc : Document( )
then
Error fact0 = new Error();
fact0.setErrorCode( code1 );
insert(fact0 );
retract( emptyDoc);
end
I see that error is created more than once ( as many as matching documents
)
How do we ensure that all documents are retracted and also the error is
created only once ?
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Re: [rules-users] setting different value in consequence ( RHS part) based on a conditional check
Did I just heard Wolfgang complaining about being too dogmatic??? After all maybe the Mayans were right :) By the way, Vadlam, did you try using a template rule in Guvnor? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Fri, Jan 27, 2012 at 10:10 AM, FrankVhh frank.vanhoensho...@agserv.euwrote: Hi Wolfgang, Can I push you for a clarification on this statement? Imho, any of the following reasons is good enough to put a decision in rules A- The decision logic is likely to be subject to change B- The decision logic is too complex to implement in a procedural way C- The decision logic is making sense to business users. (i.e. non-technical logic) In this case, option B is opviously way off. But one can only guess regarding A and C. Regards, Frank laune wrote Oh my, aren't we a wee bit too dogmatic? I've certainly been known as being a stickler to style and best practice and what not, but in this particular case I'd use a single rule and offload the earth-shaking decision between 'Y' and 'N' into a function: rule x when samplefact1( $status: status, state == CA ) then fact0.setField1( yn( $status) ); end Cheers -W ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users -- View this message in context: http://drools.46999.n3.nabble.com/setting-different-value-in-consequence-RHS-part-based-on-a-conditional-check-tp3690826p3692750.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] Infinit loop in simple example
import spikes.Applicant
rule Is of valid age when
$a : Applicant( age 18 )
then
modify( $a ) { valid = false };
end
By using modify() you are telling the engine that $a was modified in some
way. This causes the re-evaluation of your rule, and since $a.age is still
18, then the rule is activated and fired infinite times.
Read the documentation manual about some attributes you can use in your
rules to avoid this behavior: no-loop, lock-on-active.
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
On Fri, Jan 20, 2012 at 3:12 PM, roland.kofler roland.kof...@gmail.comwrote:
Simple example loops ad infinitum if executed:
package spikes;
import org.springframework.roo.addon.javabean.RooJavaBean;
@RooJavaBean
public class Applicant {
private final String string;
private final int age;
public boolean valid=true;
public Applicant(String string, int i) {
this.string = string;
this.age = i;
}
}
DroolsSpikeTest
package spikes;
import static org.junit.Assert.*;
import org.drools.KnowledgeBase;
import org.drools.runtime.StatelessKnowledgeSession;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={classpath:**/applicationContext-drools.xml})
public class DroolsSpikeTest {
@Autowired
private KnowledgeBase kbase;
@Test
public void testspikeDroolRule() {
StatelessKnowledgeSession ksession =
kbase.newStatelessKnowledgeSession();
Applicant a = new Applicant(Mr John Smith, 16);
assertTrue(a.isValid());
ksession.execute(a);
assertFalse(a.isValid());
}
}
applicationContext-drools.xml
?xml version=1.0 encoding=UTF-8 standalone=no?
beans xmlns=http://www.springframework.org/schema/beans;
xmlns:aop=http://www.springframework.org/schema/aop;
xmlns:context=http://www.springframework.org/schema/context;
xmlns:jee=http://www.springframework.org/schema/jee;
xmlns:tx=http://www.springframework.org/schema/tx;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xmlns:drools=http://drools.org/schema/drools-spring;
xsi:schemaLocation=http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/jee
http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://drools.org/schema/drools-spring
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-container/drools-spring/src/main/resources/org/drools/container/spring/drools-spring-1.0.0.xsd
drools:kbase id=kbase1
drools:resources
drools:resource id=licenseRule type=DRL
source=classpath:spikes/licenseApplication.drl/
/drools:resources
drools:configuration
drools:mbeans enabled=true /
/drools:configuration
/drools:kbase
drools:ksession kbase=kbase1 type=stateless id=ksessionStateless
name=stateless1
/drools:ksession
/beans
licenseApplication.drl
import spikes.Applicant
rule Is of valid age when
$a : Applicant( age 18 )
then
modify( $a ) { valid = false };
end
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Re: [rules-users] Guvnor export options.
Take a look at the documentation: REST-API and webdav sections. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Wed, Jan 18, 2012 at 5:03 AM, pm-lemos pedrolemos...@gmail.com wrote: Hi, I'm kind of looking for a way to export the rules I wrote in Guvnor to a .DRL file. Is it possible? How can I do it? Thanks in advance. Pedro -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-export-options-tp3668262p3668262.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] unable to load jar file
As far as I know, what you are asking is not possible. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/1/18 kavitha sethu kavithase...@gmail.com Hi, Can anybody tell me how to use groovy classes as fact classes in guvnor. Because, i tried to upload the jar file of the java classes and it seems to be working fine. Thanks, Kavitha. On Wed, Jan 18, 2012 at 10:13 AM, Esteban Aliverti esteban.alive...@gmail.com wrote: Seems like your model has some Groovy dependencies. If you upload a jar, all the referenced classes (dependencies) of that jar must to be available to Guvnor. What I recommend to do is to create a plain POJO model without any external library dependency (if possible) Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Wed, Jan 18, 2012 at 6:10 PM, kavita kavithase...@gmail.com wrote: Hi, I am trying to upload a POJO jar file into drools guvnor. But it is throwing me an error saying unable to load file. This is the file that am trying to upload http://drools.46999.n3.nabble.com/file/n3669841/QcResult.jarQcResult.jar I am running drools guvnor 5.3 on tomcat server. When i looked into the logs of tomcat, the following is the stacktrace.. SEVERE: Servlet.service() for servlet AssetFileServlet threw exception java.lang.ClassNotFoundException: groovy.lang.GroovyObject at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:109) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader.java:86) at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:104) at java.lang.ClassLoader.loadClass(Unknown Source) at org.drools.guvnor.server.contenthandler.ModelContentHandler.isClassVisible(ModelContentHandler.java:183) at org.drools.guvnor.server.contenthandler.ModelContentHandler.getImportsFromJar(ModelContentHandler.java:148) at org.drools.guvnor.server.contenthandler.ModelContentHandler.onAttachmentAdded(ModelContentHandler.java:66) at org.drools.guvnor.server.files.FileManagerUtils.attachFileToAsset(FileManagerUtils.java:115) at org.drools.guvnor.server.files.FileManagerUtils.attachFile(FileManagerUtils.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterceptor.java:163) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185) at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103) at org.drools.guvnor.server.files.FileManagerUtils_$$_javassist_seam_10.attachFile(FileManagerUtils_$$_javassist_seam_10.java) at org.drools.guvnor.server.files.AssetFileServlet.processAttachFileToAsset(AssetFileServlet.java:97) at org.drools.guvnor.server.files.AssetFileServlet.doPost(AssetFileServlet.java:49
Re: [rules-users] Resource Change Scanner Service modified date error
Dean, did you figure out why your code is using a ReaderResource? There are other threads reporting this same problem. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Fri, Jan 6, 2012 at 2:14 PM, Jiri Svitak jsvi...@redhat.com wrote: Hello Dean, you are right, https://issues.jboss.org/browse/GUVNOR-1699 solves something different. Bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=733008 still waits to be solved. I have updated this bugzilla to be linked to belonging JIRA issues. You can look also on other bugs which have the same root cause. But I am not developer, so I cannot tell you when it'll be fixed. Jiri Svitak On 01/05/2012 02:27 PM, Dean wrote: Hi I am experiencing a problem with starting the ResourceChangeScannerService as described here: https://bugzilla.redhat.com/show_bug.cgi?id=733008 I can create a KnowledgeAgent instance and apply a changeset to it which loads the desired package from Guvnor. However, as soon as I attempt to start the ScannerService in order to be notified of changes to this package I immediately receive the exception: java.lang.IllegalStateException: reader does have a modified date. Then on every scanner interval following, the scanner fails each time with the same error message. Apparently, this issue has already been fixed here: https://issues.jboss.org/browse/GUVNOR-1699 However, I am still experiencing this problem even with Drools 5.4.0.Beta1 Could somebody perhaps help me with this. I am attempting to rebuild the source code on my side, however, I am having endless problems with Maven. Regards Dean -- View this message in context: http://drools.46999.n3.nabble.com/Resource-Change-Scanner-Service-modified-date-error-tp3634802p3634802.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
Re: [rules-users] Application Guvnor integration
Unfortunately, this is a known issue that remains open: https://bugzilla.redhat.com/show_bug.cgi?id=733008 What I don't understand is why Drools is trying to use a ReaderResource instead of a URLResource. Let me check into the source code to see what I find. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/1/17 Michael Anstis michael.ans...@gmail.com Yay, at long last a Java Stack Trace :) This is a known problem, but one I believe has been fixed for 5.4.0.beta1 - correct me if I am wrong esteban. sent on the move On 17 Jan 2012 07:22, Senthil K kris.senthilku...@gmail.com wrote: Thank you Manstis..I'm able to retrieve the packages and rulenames through ChangeSet.I verified that example(Mortgages).But,When I delete a rule in guvnor,the change is not getting reflecting in my Java code..I think the ResourceScanner is unable to start the service.Here is the following exception I'm getting when i add the below lines ResourceChangeScannerConfiguration sconf= ResourceFactory.getResourceChangeScannerService().newResourceChangeScannerConfiguration(); sconf.setProperty(drools.resource.scanner.interval, 30); ResourceFactory.getResourceChangeScannerService().configure(sconf); ResourceFactory.getResourceChangeNotifierService().start(); ResourceFactory.getResourceChangeScannerService().start(); *This is exception I'm getting* Exception in thread Thread-3 java.lang.IllegalStateException: reader does have a modified date at org.drools.io.impl.ReaderResource.getLastModified(ReaderResource.java:64) at org.drools.io.impl.ResourceChangeScannerImpl.scan(ResourceChangeScannerImpl.java:166) at org.drools.io.impl.ResourceChangeScannerImpl$ProcessChangeSet.run(ResourceChangeScannerImpl.java:311) at java.lang.Thread.run(Thread.java:662) After starting Notification service After rule engine start no of packages1 This is : pricing Packages and RuleName is ageprice This is : pricing Packages and RuleName is incomeprice This is : pricing Packages and RuleName is cpvprice How to scan changes in that ChangeSet.Did my Java code went wrong??Can you please help me out this..Please Thanks -- View this message in context: http://drools.46999.n3.nabble.com/Application-Guvnor-integration-tp3655924p3665380.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
Re: [rules-users] Resource Change Scanner Service modified date error
So, maybe some change in PackageBuilder is not setting the correct Resource to Declared Fact types. Unfortunately I don't have time right now to take a look at this problem. Could you try adding DRL resource instead of compiled package? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2012/1/17 Dean Eastwood d...@qualica.com Hi Esteban Unfortunately I haven't had time to work further on this issue, so I don't have an answer yet. All I can say for now is it seems that the ReaderResources are being created along with the URLResource each time. This is evidenced by the details below. In my test, I have the following changeset based on the mortgages sample (I have changed my hosting port): -- *change-set xmlns='http://drools.org/drools-5.0/change-set'* *xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'* *xs:schemaLocation='http://drools.org/drools-5.0/change-set http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd' * *add* * resource source=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST' type='PKG' /* */add* */change-set* -- This changeset can be read as a UrlResource, ClassPathResource or ByteArrayResource. I then use the following code to initialise the KnowledgeAgent: -- *SystemEventListenerFactory.setSystemEventListener(new PrintStreamSystemEventListener(System.out));* ** *KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent(MortgageAgent);* *Resource changeset = ResourceFactory.newClassPathResource(ChangeSet.xml);* *kagent.applyChangeSet(changeset);* -- Within the System event listener output, I see that the KnowledgeAgent picks up all of the KnowledgeDefinitions from Drools and creates them as new UrlResources. Next, it picks up the KnowledgeDefinitions from drools and creates these all as null ReaderResources. Here is some output from my System event listener: -- *[2012-01-17 10:32:32,577:debug] KnowledgeAgent rebuilding KnowledgeBase using ChangeSet* *[2012-01-17 10:32:33,410:debug] KnowledgeAgent building resource map* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent no resource mapped for rule=[Rule name=Dummy rule, agendaGroup=MAIN, salience=0, no-loop=false]* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent mapping resource=[UrlResource path=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST'] to KnowledgeDefinition=[Rule name=Dummy rule, agendaGroup=MAIN, salience=0, no-loop=false]* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent mapping resource=[UrlResource path=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST'] to KnowledgeDefinition=[Rule name=Underage, agendaGroup=MAIN, salience=10, no-loop=false]* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent mapping resource=[UrlResource path=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST'] to KnowledgeDefinition=[Rule name=Bankruptcy history, agendaGroup=MAIN, salience=10, no-loop=false]* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent mapping resource=[UrlResource path=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST'] to KnowledgeDefinition=[Rule name=No bad credit checks, agendaGroup=MAIN, salience=10, no-loop=false]* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent mapping resource=[UrlResource path=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST'] to KnowledgeDefinition=[Rule name=no NINJAs, agendaGroup=MAIN, salience=10, no-loop=false]* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent mapping resource=[UrlResource path=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST'] to KnowledgeDefinition=[Rule name=Row 3 Pricing loans, agendaGroup=MAIN, salience=0, no-loop=false]* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent mapping resource=[UrlResource path=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST'] to KnowledgeDefinition=[Rule name=Row 1 Pricing loans, agendaGroup=MAIN, salience=0, no-loop=false]* *[2012-01-17 10:32:33,411:debug] KnowledgeAgent mapping resource=[UrlResource path=' http://localhost:8090/guvnor/org.drools.guvnor.Guvnor/package/mortgages/LATEST'] to KnowledgeDefinition=[Rule name=Row 2 Pricing loans, agendaGroup=MAIN
Re: [rules-users] ClassCastException when KnowledgeAgent loads declared type
This is a known bug: https://issues.jboss.org/browse/JBRULES-2962 Some
improvements were made in 5.3 and 5.4 but AFAIK, the issue still remains.
Could you please try using 5.4.SNAPSHOT ot beta1 to see if the error
persists?
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
On Mon, Jan 16, 2012 at 7:21 PM, lhorton lhor...@abclegal.com wrote:
Code level: 5.2.0.Final
I have a DRL file that includes a declared type:
package com.abclegal.rules.servicerequirements
declare TransgressionMetaData
attempt : ServiceAttempt
requirement : Requirement
end
The package loads the first time and its rules run without error. If I
make
a change to the file and hot-deploy it (copy it to the server), the
ResourceChangeScanner picks up the file and KnowledgeAgent loads it, but
when any rule from that package subsequently fires, I get a
ClassCastException on the declared type:
com.abclegal.rules.servicerequirements.TransgressionMetaData cannot be cast
to com.abclegal.rules.servicerequirements.TransgressionMetaData
it appears the KnowledgeAgent is not replacing the existing (in working
memory) definition of the declared type, but instead is creating a new one
with a different hash code.
looks like a bug?
Full stack trace:
Caused by: RulesConsequenceException executing consequence for rule
PHOTO_WHEN_SERVED: Photo must be taken if served. in
com.abclegal.rules.servicerequirements
[Error: drools.insert(new TransgressionMetaData($attempt,$req)):
com.abclegal.rules.servicerequirements.TransgressionMetaData cannot be cast
to com.abclegal.rules.servicerequirements.TransgressionMetaData]
[Near : {... @Modify with($attempt){ }]
^
[Line: 1, Column: 1]
java.lang.ClassCastException:
com.abclegal.rules.servicerequirements.TransgressionMetaData cannot be cast
to com.abclegal.rules.servicerequirements.TransgressionMetaData
Rules working memory:
Fact ServiceAttempt id: 17
at
com.abclegal.rules.utility.RulesConsequenceExceptionHandler.handleException(RulesConsequenceExceptionHandler.java:24)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:912)
at
org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:845)
at
org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1056)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:733)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:699)
at
org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218)
at
org.drools.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:305)
at
com.abclegal.rules.server.RulesServiceImpl.execute(RulesServiceImpl.java:378)
... 44 more
Caused by: [Error: drools.insert(new TransgressionMetaData($attempt,$req)):
com.abclegal.rules.servicerequirements.TransgressionMetaData cannot be cast
to com.abclegal.rules.servicerequirements.TransgressionMetaData]
[Near : {... @Modify with($attempt){ }]
^
[Line: 1, Column: 1]
at
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:409)
at
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:140)
at
org.mvel2.optimizers.dynamic.DynamicOptimizer.optimizeAccessor(DynamicOptimizer.java:67)
at org.mvel2.ast.ASTNode.optimize(ASTNode.java:154)
at
org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:110)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:86)
at
org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:122)
at
org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:115)
at org.mvel2.MVEL.executeExpression(MVEL.java:928)
at
org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:105)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:906)
... 51 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:1066)
at
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:338)
... 61 more
--
View this message in context:
http://drools.46999.n3.nabble.com/ClassCastException-when-KnowledgeAgent-loads-declared
Re: [rules-users] Application Guvnor integration
I noticed you are calling applyChangeSet() twice. Any reason in why to do that? I mean, it should work ok, but maybe you have found a bug. Try to remove one of the invocations. Regarding the logs, there must be some KnowledgeAgent logs in the console output of your application. Could you share them? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Jan 16, 2012 at 6:14 AM, Senthil K kris.senthilku...@gmail.comwrote: Hi Esteban, Any update on this please? Anything wrong in what i am doing? Please help me out. Regards, Senthil -- View this message in context: http://drools.46999.n3.nabble.com/Application-Guvnor-integration-tp3655924p3662255.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] unable to update the changes (guvnor rules) to application using changeset
Each package in Guvnor has its own REST URL (I think it is the same URL used in the changeset :P). You can try to manually add each package to your kbuilder using a URLResource pointing to each package's URL. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Sat, Jan 14, 2012 at 6:36 PM, srinivasasanda srinivasasa...@gmail.comwrote: Hi Esteban, Can you please suggest me how to implement this changeset using REST API. -- View this message in context: http://drools.46999.n3.nabble.com/unable-to-update-the-changes-guvnor-rules-to-application-using-changeset-tp3652824p3659361.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] Calling POJO class get Method in BRL
The rule seems ok. Of course you need to insert a PersonDetails object in your working memory if you want the rule to get activated. Please read Drools documentation to see rules' life-cycle: http://docs.jboss.org/drools/release/5.4.0.Beta1/drools-expert-docs/html_single/index.html Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Jan 16, 2012 at 1:34 PM, srinivasasanda srinivasasa...@gmail.comwrote: Hi Manstis, Where do you insert a PersonDetails fact? Why do you set the age on Person when you state it'll be in PersonDetails? You'll also need to have a relationship between Person and PersonDetails and include this in your rule. Manstis,Let me explain my requirement precisely.age is the field in my POJO class which is set to 40.In the same way,I set the value of age which is in Person fact to 40 in my main executable class. Now,I need to compare age in POJO class(which is 40(hardcoded))and age in Person fact(which is set to 40 in the main Java class -appType.set(application, age, 40);) When these two ages are equal,I should print welcome drools.As both are 40,the output must be Welcome Drools. Here is my BRL code. when 4. |PersonDetails( a : age 0 ) 5. |Personn( age == a ) 6. |then 7. |System.out.println(Welcome Drools); 8. | end Should i need to insert Model PersonDetails in the source code?I followed ur instructions to create BRL.Please help me in achieving my requirement -- View this message in context: http://drools.46999.n3.nabble.com/Calling-POJO-class-get-Method-in-BRL-tp3662420p3663046.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] unable to update the changes (guvnor rules) to application using changeset
You will need to check why are you getting the exception in the knowledge agent: java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage The error seems to happen when MVELDialectRuntimeData is deserialized. The strange thing is that error could only happen if you are using PKG in your changesets. According to your code, you are using DRL, right? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Jan 16, 2012 at 1:42 PM, srinivasasanda srinivasasa...@gmail.comwrote: Hi Esteban, I tried all ways to implement changeset using REST API with the same code,but my packages that I'm retrieving are zero.Could you help me out in implelementing changeset using REST API Thanks -- View this message in context: http://drools.46999.n3.nabble.com/unable-to-update-the-changes-guvnor-rules-to-application-using-changeset-tp3652824p3663064.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] unable to update the changes (guvnor rules) to application using changeset
So, no Knowledge Agent logs? That's weird. I would suggest you to download Drools' binaries and debug inside KnowldgeAgentImpl.java to see what is going on. Did you try without using a KnowledgeAgent? You can also add a change-set to a KnowledgeBuilder and construct a KnowledgeBase using the compiled packages of the kbuilder. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Jan 16, 2012 at 3:11 PM, srinivasasanda srinivasasa...@gmail.comwrote: efore rule engine start after creating kagent $After Apply change set After starting Notification service After rule engine start no of packages0 no of packages0 no of packages0 no of packages0. ChangeSet is change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' xs:schemaLocation='http://drools.org/drools-5.0/change-set http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd ' add resource source=' http://localhost:8080/guvnor-5.3.0.Final-jboss-as-5.1/rest/packages/pricing/source ' type='DRL' / resource source=' http://localhost:8080/guvnor-5.3.0.Final-jboss-as-5.1/rest/packages/search/source ' type='DRL' / /add /change-set Till now,I'm unable to find why changeset is working fine for local DRL files,but when it comes to guvnor DRL's with rest api embedded,its generating no output. -- View this message in context: http://drools.46999.n3.nabble.com/unable-to-update-the-changes-guvnor-rules-to-application-using-changeset-tp3652824p3663306.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] Application Guvnor integration
I think we have a duplication problem here :) Are you and srinivasasa...@gmail.com working together? If so, please let's continue this discussion in just one thread. Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Jan 16, 2012 at 3:26 PM, Senthil K kris.senthilku...@gmail.comwrote: Hi Esteban, This is my System.out log...Where I'm getting all packages as 0. Before rule engine start after creating kagent after apply change set After starting Notification service no of packages0 Thanks -- View this message in context: http://drools.46999.n3.nabble.com/Application-Guvnor-integration-tp3655924p3663347.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
