Re: [rules-users] Guvnor Building pkg error

2009-06-16 Thread Toni Rikkola

Hi,

Just noticed that you asked this same thing in the drools-dev list ( and 
I even replied to it :) ).


Please try to only ask on one list. This list, drools-users is the one 
for this type of questions.


Thanks
Toni

Yan Liu wrote:
When trying to build a package (even using the sample pkg from drools 
Guvnor) I got this - "Sorry, a technical error occurred. Please 
contact a system administrator."
 
This is indeed very frustrating as I need to build binary pkgs for my 
remote rule agents to access. I found the post here saying it is 
fixed. https://jira.jboss.org/jira/browse/GUVNOR-327 No details though.
 
Can anyone shed some light on this problem if you know how to fix it?
 
Thanks in advance for your reply.
 
Yan



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[rules-users] Deploying Guvnor in an Enterprise environment

2009-06-16 Thread Steve Ronderos
Hello Drools Users,

I'm working on deploying Guvnor in an enterprise environment.  There is 
some mention in the JBoss Wikis 
http://www.jboss.org/community/wiki/GuvnorRoadmapFor0809 and 
http://www.jboss.org/community/wiki/Guvnor about lifecycle management of 
assets in Guvnor.  The descriptions in those two articles is somewhat 
brief and does not quite cover all of my requirements. 

We have a need to be able to deploy assets to various dev, staging and 
production servers and define which assets should be deployed in a given 
deploy.  I realize that snapshots and selectors can be leveraged to get 
this kind of functionality, but it does not feel like a robust solution. 
Additionally, we have scenarios where two users might need to edit the 
same asset for two different releases, and test them on different 
environments simultaneously.

Has anyone implemented Guvnor in a Dev, Staging, Production environment 
that could give some pointers on how to manage these concurrent release 
issues?

Thanks,
 
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[rules-users] Guvnor Building pkg error

2009-06-16 Thread Yan Liu
When trying to build a package (even using the sample pkg from drools
Guvnor) I got this - "Sorry, a technical error occurred. Please contact a
system administrator."

This is indeed very frustrating as I need to build binary pkgs for my remote
rule agents to access. I found the post here saying it is fixed.
https://jira.jboss.org/jira/browse/GUVNOR-327 No details though.

Can anyone shed some light on this problem if you know how to fix it?

Thanks in advance for your reply.

Yan
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[rules-users] 3rd CfP RuleML-2009 - Deadline extended June 28th

2009-06-16 Thread Adrian Paschke
   [Apologies for multiple postings]
   
   Call for Papers
   
 RuleML 2009
  
3rd International Symposium on Rules, Applications and Interoperability
 November 5-7 2009, Las Vegas, Nevada, USA
  
   http://2009.ruleml.org/

  co-located with the 12th Business Rules Forum

 


**
*  Latest News  **
**   Submission Deadline (extended)   June 28th **
*   **
* Keynote by Sandro Hawke, W3C RIF  - The Future of Rule Interchange**
* New categories in the Challenge with prestigious prizes   **  
* Rules standards session, W3C RIF workshop, lunch panel on Web Rules*
* Student grants of the value of up to $1000 plus free registration **
**

Supported by
===
W3C, OMG, ACM, AAAI, ECCAI, IAAIL, ACM, Belgian Business Rules Forum
MIT Sloan CIO Symposium, EPTS, BPM Forum Belgium

Sponsored by
===

Franz Inc
NICTA (National ICT Australia) Ltd
Corporate Semantic Web
Logic Programming Associated Ltd
ruleCore
JBoss
Modelsystems Ltd
===

Overview and Aim
===

The International Symposium on Rules, Applications and Interoperability has
evolved from an annual series of international workshops since 2002,
international conferences in 2005 and 2006, and international symposia since
2007. This year, the 3rd International Symposium on Rules, Applications and
Interoperability (RuleML-2009) takes place in Las Vegas, Nevada, USA,
collocated with the 12th Business Rules Forum, the world's largest Business
Rules event. RuleML-2009 is devoted to practical distributed rule
technologies and rule-based applications which need language standards for
rules (inter)operating in, e.g., the Semantic Web, Multi-Agent Systems,
Event-Driven Architectures, and Service-Oriented Applications. 

The main goal of RuleML-2009 is to stimulate the cooperation and
interoperability between business and research, by bringing together rule
system providers, participants in rule standardization efforts, open source
communities, practitioners, and researchers. The concept of the symposium
has also advanced continuously in the face of extremely rapid progress in
practical rule and event processing technologies. As a result, RuleML-2009
will feature hands-on demonstrations and challenges alongside a wide range
of thematic tracks, and thus will be an exciting venue to exchange new ideas
and experiences on all issues related to the engineering, management,
integration, interoperation and interchange of rules in open distributed
environments such as the Web.

Conference Theme
===

This year, we particularly welcome submissions that address applications of
Web rule technologies for business and information systems. We invite you to
share your ideas, results, and experiences: as an industry practitioner,
rule system provider, technical expert and developer, rule user or
researcher, exploring foundations, developing systems and applications, or
using rule-based systems. We invite high-quality submissions related to (but
not limited to) one or more of the following topics:

Track Topics


Rule Transformation and Extraction
  - Transformation and extraction with rule standards, such as SBVR, RIF and
OCL
  - Extraction of rules from code
  - Transformation and extraction in the context of frameworks such as KDM
(Knowledge Discovery meta-model)
  - Extraction of rules from natural language
  - Transformation or rules from one dialect into another

Rules and Uncertainty
  - Languages for the formalization of uncertainty rules
  - Probabilistic, fuzzy and other rule frameworks for reasoning with
uncertain or incomplete information
  - Handling inconsistent or disparate rules using uncertainty
  - Uncertainty extensions of event processing rules, business rules,
reactive rules, causal rules, derivation rules, association rules, or 
transformation rules

Rules and Norms
  - Methodologies for modeling regulations using both ontologies and rules
  - Defeasibility: modeling rule exceptions and priority relations among 
rule
  - The relationship between rules and legal argumentation schemes
  - Rule language requirements for the "isomorphic" modeling of legislation
  - Rule based inferenc

Re: [rules-users] Extend Guvnor

2009-06-16 Thread Mark Proctor

Andy Mei wrote:

Hi all,

   Long time user of Drools (dated back in xml syntax days).  We are 
looking to revamp our in house rules product which is based on Drools 
3.x.  We have built a Swing thick client that provides similar 
functionality as Guvnor such as rule editing, versioning, deployment 
(with approval system).  One major feature we do have is rule 
simulation.  We allow user to simulate rules and display results while 
user save or seek approval of their rules before deploy to production 
system.  The simulation feature allows user to run against production 
or testing environment to ensure it provide correct results.  I wonder 
if Guvnor has such extensibility interface build in which I could add 
my own functionality such as simulation and result browsing?  Since 
Guvnor is based on Seam and GWT (i think), I could probably fork the 
source and tweak the UI, but I much rather code against an interface 
supported by Drools. 


  Thoughts? TIA.

PS:  I am curious how are existing Drools user test their rules currently?
Guvnor has a simple scenario tester in the QA section. that allows you 
to run some rules against a set of data and asserting the expected results.


I'm currently working on a more complete framework, although just the 
backend api at the moment, for simulation and testing. I hope to have 
something usable in the next few days. I think the initial plan is to 
map it to an DSL in MVEL and also to maybe do a mapping to a spreadsheet 
metaphor. The simulation impl I'm doing will be very complete and allow 
for testing of rules, workflow and event processing. I'll blog about it 
once something is ready.


Not sure how this will plug into guvnor, other than the uploading and 
displaying of spreadsheets. One idea is to have a chronoscope time line, 
which displays all the steps and when they are suppose to happen. If you 
select a step, it shows the MVEL DSL fragment for that step which can be 
edited - just simple text area. After that works, we can probably work 
on various GUI editors for the step segments.


Mark

http://blog.athico.com Drools Blog.


Andy


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Re: [rules-users] Web based decision tables

2009-06-16 Thread Dan Seaver

I'm exporting the table and I'd like to use the xml that represents the
web-based decision table to generate the DRL. Copying the source that can be
displayed by Guvnor will not suffice for my purposes.


Michael Rhoden wrote:
> 
> Are you exporting the DRL or just using the view source from guvnor? The
> view source doesn't show the model that must be defined, among other
> things. I havent used the eclipse plugin much but Guvnor itself, has it's
> own pseudo model for handling Web Decision tables. When you finally
> generate a package it will generate correct DRL (not BRL/DT) of that
> decision table and should have everything you need to run it outside of
> Guvnor. BRL and DT will always create DRL when you export the package. So
> my guess is you should use KB.add on a DRL resource type. 
> 
> -Michael 
> 
> - Original Message - 
> From: "Dan Seaver"  
> To: rules-users@lists.jboss.org 
> Sent: Monday, June 15, 2009 3:32:48 PM GMT -06:00 US/Canada Central 
> Subject: [rules-users] Web based decision tables 
> 
> 
> Can someone tell me the appropriate way to use web-based decision tables? 
> They seem to work fine if I create them in Guvnor, and then build and
> deploy 
> the binary package from Guvnor. However, if I copy the gdst from Guvnor to 
> Eclipse and use KnowledgeBuilder.add to attempt to add the resource as a 
> DTABLE or BRL resource type, I get a NullPointerException or 
> CannotResolveClassException. 
> 
> Any help would be appreciated. 
> 
> Thanks, 
> Dan 
> -- 
> View this message in context:
> http://www.nabble.com/Web-based-decision-tables-tp24042079p24042079.html 
> Sent from the drools - user mailing list archive at Nabble.com. 
> 
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Re: [rules-users] Help -- Conditional Logic in DRL

2009-06-16 Thread new2drools


Greg,

Thanks much for your suggestion...I think this will help!!

Should have thought of this approach, before posting...

Thanks again!

Greg Barton wrote:
> 
> 
> Note to drools devs: I didn't put the original poster up to this. :)
> 
> Globals should be considered immutable, so shouldn't be used in this way.
> You could do it with an object asserted in working memory, though.
> 
> Just as good, though, you can use this kind of pattern to replicate else
> logic:
> 
> rule "EverythingMatches"
> when
>   Condition0
>   Condition1
>   Condition2
> then
>   ...
> end
> 
> rule "ElseAtCondition2"
> when
>   Condition0
>   Condition1
>   !Condition2
> then
>   ...
> end
> 
> rule "ElseAtCondition1"
> when
>   Condition0
>   !Condition1
> then
>   ...
> end
> 
> rule "ElseAtCondition0"
> when
>   !Condition0
> then
>   ...
> end
> 
> --- On Mon, 6/15/09, Scott Reed  wrote:
> 
>> From: Scott Reed 
>> Subject: Re: [rules-users] Help -- Conditional Logic in DRL
>> To: "Rules Users List" 
>> Date: Monday, June 15, 2009, 10:19 PM
>> Looks like 5 rules with a global flag
>> might work:
>> 
>> global boolean flag = false;
>> 
>> rule "name1"
>> when
>>   (condition1 == true )
>>   (flag == false)
>> then
>>   consequence1();
>>   flag = true;
>> end
>> 
>> ...
>> 
>> rule "name5"
>> when
>>   (condition5 == true )
>>   (flag == false)
>> then
>>   consequence5();
>>   flag = true;
>> end
>> 
>> Does that work for you?
>> 
>> Vishy [6/15/2009 11:06 PM] wrote:
>> > Hi All,
>> >
>> > I am new to drools...and am trying to figure out as to
>> how I can
>> > represent the following logic in a DRL file.
>> >
>> > if (condition1) {
>> >
>> >   if (condition2) {
>> >
>> >   } else if (condition3) {
>> >
>> >   } else if (condition 4) {
>> >
>> >   } else if (condition 5) {
>> >
>> >   }
>> >
>> > }
>> >
>> > In DSL, a typical rule is represented as follows:
>> >
>> > rule "name"
>> >
>> > when
>> >   condition is true
>> > then
>> >   consequence
>> >
>> > end
>> >
>> > How can I represent the above mentioned if - else
>> logic in DSL? Or is
>> > it not possible?
>> >
>> > If it is not, can you please suggest any alternative?
>> >
>> > Thanks much!!
>> > ___
>> > rules-users mailing list
>> > rules-users@lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >   
>> ___
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>> 
> 
> 
>   
> 
> ___
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> 

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[rules-users] Extend Guvnor

2009-06-16 Thread Andy Mei
Hi all,

   Long time user of Drools (dated back in xml syntax days).  We are looking
to revamp our in house rules product which is based on Drools 3.x.  We have
built a Swing thick client that provides similar functionality as Guvnor
such as rule editing, versioning, deployment (with approval system).  One
major feature we do have is rule simulation.  We allow user to simulate
rules and display results while user save or seek approval of their rules
before deploy to production system.  The simulation feature allows user to
run against production or testing environment to ensure it provide correct
results.  I wonder if Guvnor has such extensibility interface build in which
I could add my own functionality such as simulation and result browsing?
Since Guvnor is based on Seam and GWT (i think), I could probably fork the
source and tweak the UI, but I much rather code against an interface
supported by Drools.

  Thoughts? TIA.

PS:  I am curious how are existing Drools user test their rules currently?

Andy
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Re: [rules-users] Class Casting in a Collection data

2009-06-16 Thread Edson Tirelli
   My suggestion is that you try Drools 5.0.1 with MVEL 2.0.10. If you need
to stay on Drools 4, then try replacing the mvel jar by MVEL 1.3.9.

   []s
   Edson

2009/6/15 VinuJay 

>
> Hi Edson,
>
> Thanks for the reply.
>
> I am using Drools 4.0.7 and mvel 1.3.1-java1.4.jar
>
>
> Edson Tirelli-3 wrote:
> >
> >What versions of Drools and MVEL are you using?
> >
> >[]s
> >Edson
> >
> > 2009/6/15 VinuJay 
> >
> >>
> >> Hi my fact object looks like this,
> >>
> >> class ProcessRequest {
> >>
> >>  Long requestId;
> >>
> >>  String processType;
> >>
> >>  String assigneeUsers;
> >>
> >>  HashTable businessData;
> >>
> >>  //Getters and Setters
> >>
> >> }
> >>
> >> My businessdata can be of type Integer, String, Boolean, hence i have
> >> used
> >> generic Object for the business data value.
> >>
> >> But if i use any mathematical operator in the rules (.drl) file like,
> >> rule "Assign"
> >> when
> >> p: ProcessRequest(processType == "LoanFlowPlus" &&
> >> businessData['LOANAMOUNT'] < 5000)
> >> then
> >>p.setAssigneeUsers("jcooper");
> >> end
> >>
> >>
> >> i get an error
> >> Exception in thread "main" org.drools.RuntimeDroolsException: Exception
> >> executing predicate eval( businessData['LOANAMOUNT'] < 5000 )
> >> Caused by: java.lang.ClassCastException: java.lang.Integer
> >>
> >>
> >> Shouldn't the drools API handle this class cast conversion internally
> ..?
> >> or
> >> how to specify the class casting in rules file
> >>
> >>
> >>
> >>
> >>
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/Class-Casting-in-a-Collection-data-tp24031803p24031803.html
> >> Sent from the drools - user mailing list archive at Nabble.com.
> >>
> >> ___
> >> rules-users mailing list
> >> rules-users@lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >>
> >
> >
> >
> > --
> >  Edson Tirelli
> >  JBoss Drools Core Development
> >  JBoss, a division of Red Hat @ www.jboss.com
> >
> > ___
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> > rules-users@lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
> --
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>
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Re: [rules-users] [#JBRULES-1946] Deserializing a KnowledgeBase object throws a java.io.EOFException

2009-06-16 Thread Przemysław Różycki

Hello Rick,

I confirm, that implementations - DroolsObjectOutputStream and 
DroolsObjectInputStream work well, but it's not applicable in my case, 
because I depend on external component, that is responsible for storing 
my data and it uses standard serialization mechanisms. Of course, I may 
do some workarounds that for example first serialize the stream using 
Drools implementation and then pass it to the external component, but I 
prefer to try to do it as it should be. If I don't manage to, I will 
think about some other ways.


Anyway, thank you for your response and advice.

Best regards,
Przemysław Różycki

Rick Lacy pisze:
I haven't actually tested this with your example yet, but I recall 
having a similar problem.  I notice you are using the raw 
java.io.ObjectInputStream and java.io.ObjectOutputStream.  I think what 
I did was switch to org.drools.common.DroolsObjectInputStream and 
org.drools.common.DroolsObjectOutputStream.  Have you tried it with 
these yet?
 
 
Regards,
 
 
Rick


 
On 6/15/09, *Przemysław Różycki* > wrote:


Hello,

IMHO, this bug still occurs in 5.0.1 final version as well as in
trunk. I put the proper comment and example code in JIRA:
https://jira.jboss.org/jira/browse/JBRULES-1946

I need it working quite quickly, so if the Drools developers plan to
solve it later, then I will try to look at the source code by myself
and find the solution (and share of course).

However I would like to ask if anyone tried to diagnose the problem
earlier and has some thoughts where to look for the cause?

Best regards,
-- 
Przemysław Różycki

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Re: [rules-users] Drools v5 multithreading questions

2009-06-16 Thread Andrey Nechaev
It's here: https://jira.jboss.org/jira/browse/JBRULES-2125

2009/6/15 Edson Tirelli 

>
>Andrey,
>
>May I ask you please to open a JIRA with the info from your e-mail? I
> will investigate this.
>
>Thanks,
>   Edson
>
> 2009/6/15 Andrey Nechaev 
>
>> Hello, All!
>>
>>
>>
>> I’m evaluating the new version of Drools (5.0.1), so I’m especially
>> interested in multithreading and partitioning options, implemented in Drools
>> v5.
>>
>
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Re: [rules-users] Help -- Conditional Logic in DRL

2009-06-16 Thread Wolfgang Laun
Using a fact as a guard to block alternatives is tricky. For one thing, you
cannot use a single "global" fact. (When would you reset this fact to the
initial state so that the whole mechanism can work again for the next fact
set to be processed by this rule set?) So, you might consider inserting a
flag fact along with one of the facts playing the key role in all of the
conditions. But what if the participating facts change, and this "if set"
should be activated again? How would you reset or recreate the flag fact?

Also, the precedence implied by the ordering of the else branches would have
to be expressed in the rules, using salience.

So, the solution Greg has outlined is the one to pursue. As a general rule,
keep in mind that

  if( cond ){
  ...;
  } else {
 assert( ! cond );
 ...;
  }

and

  if( cond1){ if( cond2 ){ assert( cond1 && cond2 );...;

Thus, you can collect the precondition for each if branch that is to become
a consequence of a rule, and the corresponding precondition is to be
implemented as the left hand side.

-W





On 6/16/09, Greg Barton  wrote:
>
>
> Note to drools devs: I didn't put the original poster up to this. :)
>
> Globals should be considered immutable, so shouldn't be used in this way.
> You could do it with an object asserted in working memory, though.
>
> Just as good, though, you can use this kind of pattern to replicate else
> logic:
>
> rule "EverythingMatches"
> when
> Condition0
> Condition1
> Condition2
> then
> ...
> end
>
> rule "ElseAtCondition2"
> when
> Condition0
> Condition1
> !Condition2
> then
> ...
> end
>
> rule "ElseAtCondition1"
> when
> Condition0
> !Condition1
> then
> ...
> end
>
> rule "ElseAtCondition0"
> when
> !Condition0
> then
> ...
> end
>
> --- On Mon, 6/15/09, Scott Reed  wrote:
>
> > From: Scott Reed 
> > Subject: Re: [rules-users] Help -- Conditional Logic in DRL
> > To: "Rules Users List" 
> > Date: Monday, June 15, 2009, 10:19 PM
> > Looks like 5 rules with a global flag
> > might work:
> >
> > global boolean flag = false;
> >
> > rule "name1"
> > when
> >   (condition1 == true )
> >   (flag == false)
> > then
> >   consequence1();
> >   flag = true;
> > end
> >
> > ...
> >
> > rule "name5"
> > when
> >   (condition5 == true )
> >   (flag == false)
> > then
> >   consequence5();
> >   flag = true;
> > end
> >
> > Does that work for you?
> >
> > Vishy [6/15/2009 11:06 PM] wrote:
> > > Hi All,
> > >
> > > I am new to drools...and am trying to figure out as to
> > how I can
> > > represent the following logic in a DRL file.
> > >
> > > if (condition1) {
> > >
> > >   if (condition2) {
> > >
> > >   } else if (condition3) {
> > >
> > >   } else if (condition 4) {
> > >
> > >   } else if (condition 5) {
> > >
> > >   }
> > >
> > > }
> > >
> > > In DSL, a typical rule is represented as follows:
> > >
> > > rule "name"
> > >
> > > when
> > >   condition is true
> > > then
> > >   consequence
> > >
> > > end
> > >
> > > How can I represent the above mentioned if - else
> > logic in DSL? Or is
> > > it not possible?
> > >
> > > If it is not, can you please suggest any alternative?
> > >
> > > Thanks much!!
> > > ___
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> > > rules-users@lists.jboss.org
> > > https://lists.jboss.org/mailman/listinfo/rules-users
> > >
> > ___
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> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
>
>
>
>
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