Re: [rules-users] Adding .package files to a KnowledgePackage
You have serialized a Collection of KnowledgePackage, so I trust you know how to do the reverse. Then, you simple call kBase.addKnowledgePackages( packages ) -W On 12/09/2012, Paul Ryan pr...@infotrustgroup.com wrote: I guess I should also mention that by default we are using the expert API's so primarily we're creating the knowledge packages using a KnowledgeBuilder. Again thanks for any light you can shed on getting files with the extension .package loaded into the knowledge base. -- Paul Ryan On Sep 11, 2012, at 4:59 PM, Paul Ryan pr...@infotrustgroup.com wrote: So drools will respect files with a .package extension as a place for declared types, functions, etc. when used with these in the class path. How can a import these into a KnowledgePackage/KnowledgeBase so they can get compiled along with stuff when this is not in the class path at startup? My use case is such that these are not in the same space and can't be loaded at startup time in most cases. Any help is greatly appreciated, -- Paul Ryan ___ 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] Package footprint
Hi all, I'm trying to reduce the memory footprint of packages in my application (for performance reasons they are dynamically loaded from disk), and I was wondering if some of you had any experience with the subject? So far the optimizations that I can come up with in 5.4.0.Final version are all about reducing the sizes of generated classes: - Package name in the drl file should be as small as possible, one letter is best (even better that no package at all) - Rule name should be as small as possible as it is used to generate the consequence class name - Write as less code as possible in the consequence - Use as few as possible eval statements - By using my own JavaDialectConfiguration and MVELDialectConfiguration when building the knowledge, I can remove the random number on class names that was added in the recent versions (don't understand why it was added in the first place? Does anyone know?) I see some leeway to shorten the names of the following generated classes but the amount of overriding to change the default consequence name and the suffixes is a bit too exotic for me: - PackageName.RuleNameDefaultConsequenceInvoker - PackageName.RuleNameDefaultConsequenceInvokerGenerated Any advice, other leads some of you might have? Thanks in advance -- View this message in context: http://drools.46999.n3.nabble.com/Package-footprint-tp4019721.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] System problems
hi here also while verifying rules in 5.3.0.final i am getting an error showing 500 The call failed on the server; see server log for details do anyone have any suggestions for this? thanks joy -- View this message in context: http://drools.46999.n3.nabble.com/System-problems-tp4018363p4019722.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] ETA on Drools Planner 5.5 beta?
Hi, I'm building 5.5.0.beta1 today. I'd expect it to become available within the following week. With kind regards, Mike On 13 September 2012 08:42, Michiel Vermandel mverm...@yahoo.com wrote: Hi, I have a pending issue that should be solved in Drools Planner 5.5 Beta. (WARN : [2012-09-07 14:56:40,252] Cancelled step index (0), time spend (18375): there is no doable move. Terminating phase early.) I was informed that Drools Planner 5.5 Beta would be released one of these days. Any concrete delivery date available? I have a demo to give next week and would like to test my project on 5.5 to see all is the same or better. Thanks a lot, Michiel Vermandel - 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] ETA on Drools Planner 5.5 beta?
Meanwhile, you can grab the latest snapshot. In maven use version5.5.0-20120912.141516-478/version and add the jboss repository. In ant, download: https://repository.jboss.org/nexus/content/groups/public/org/drools/planner/drools-planner-distribution/5.5.0-SNAPSHOT/drools-planner-distribution-5.5.0-20120912.141516-478.zip There won't be any big changes any more for 5.5.0.Beta1 as the release is ongoing. Make sure you're aware that the api is not backwards compatible but that despite that, it's easy to upgrade, just follow these instructions: https://github.com/droolsjbpm/drools-planner/blob/master/drools-planner-distribution/src/main/assembly/filtered-resources/UpgradeFromPreviousVersionRecipe.txt#L1912 It's definitely worth upgrading and going through that recipe: the new selector architecture is a very big step forward. Op 13-09-12 09:45, Michael Anstis schreef: Hi, I'm building 5.5.0.beta1 today. I'd expect it to become available within the following week. With kind regards, Mike On 13 September 2012 08:42, Michiel Vermandel mverm...@yahoo.com wrote: Hi, I have a pending issue that should be solved in Drools Planner 5.5 Beta. (WARN : [2012-09-07 14:56:40,252] Cancelled step index (0), time spend (18375): there is no doable move. Terminating phase early.) I was informed that Drools Planner 5.5 Beta would be released one of these days. Any concrete delivery date available? I have a demo to give next week and would like to test my project on 5.5 to see all is the same or better. Thanks a lot, Michiel Vermandel - http://www.codessentials.com - Your essential software, for free! Follow us at http://twitter.com/#!/Codessentials ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Package footprint
Most of these optimizations look very desparate to me; most likely they are motivated by a very large number of rules. Perhaps some techniques for reducing this number would show greater benefit. -W On 13/09/2012, JP Chemali jshem...@hotmail.com wrote: Hi all, I'm trying to reduce the memory footprint of packages in my application (for performance reasons they are dynamically loaded from disk), and I was wondering if some of you had any experience with the subject? So far the optimizations that I can come up with in 5.4.0.Final version are all about reducing the sizes of generated classes: - Package name in the drl file should be as small as possible, one letter is best (even better that no package at all) - Rule name should be as small as possible as it is used to generate the consequence class name - Write as less code as possible in the consequence - Use as few as possible eval statements - By using my own JavaDialectConfiguration and MVELDialectConfiguration when building the knowledge, I can remove the random number on class names that was added in the recent versions (don't understand why it was added in the first place? Does anyone know?) I see some leeway to shorten the names of the following generated classes but the amount of overriding to change the default consequence name and the suffixes is a bit too exotic for me: - PackageName.RuleNameDefaultConsequenceInvoker - PackageName.RuleNameDefaultConsequenceInvokerGenerated Any advice, other leads some of you might have? Thanks in advance -- View this message in context: http://drools.46999.n3.nabble.com/Package-footprint-tp4019721.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] Dynamic rule creation
Are those classes declared or imported in TestRule.drl? (Is TestRule.drl built without errors?) Davide -- View this message in context: http://drools.46999.n3.nabble.com/Dynamic-rule-creation-tp4019723p4019729.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Dynamic rule creation
Hi david, Yes. Please find below the rule file details. It has one rule added in the file. What I am trying, is to add a new rule dynamically to this file. package datanet.minhours import com.emlogis.policy.util.RuleAttribute; import com.emlogis.egs.domain.employee.Employee; dialect mvel; rule 'Minhours_2' dialect 'mvel' salience 80 when $p: RuleAttribute() $g: Employee(employeeType.employeeTypeName == PartTime) //eval($p.attribute[StructureLevel] = $p.inParam[structure_1#PolicyStructure]) then $p.outParam[MinimumHours] = $p.inParam[minhours_2]; $p.outParam[message] = Successfully read and match the age value[+$g.value(age)+] from the Bussiness Object Employee; $p.outParam[name] = $g.value(name); end -- View this message in context: http://drools.46999.n3.nabble.com/Dynamic-rule-creation-tp4019723p4019730.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Package footprint
Hi, Thanks for the replies. I'm actually working with a big number of large rule sets (ranging from 100 rules to up to 3000), which are generated based on another proprietary language. These are not used system wide, but on a user per user basis and loaded dynamically In itself, the system handles itself well, as compiled packages are persisted on disk and loaded only when a user requires it. Thing is, the memory footprint (and the size of the persisted packages) has increased significantly when migrating from 4.0.7 to 5.4.0.Final (20% to 30% for the large ones) and I am trying to find ways of trimming this down as much as I can. Going from a package name of 12 characters to 1 actually and rule names to 3-4 characters shaved off 5-10% in most cases, so not so trivial :-) Unfortunately, reducing the number of rules is not a option in my case, so any advice (or explanation on the increase) is most welcome Date: Thu, 13 Sep 2012 01:42:47 -0700 From: dso...@gmail.com To: rules-users@lists.jboss.org Subject: Re: [rules-users] Package footprint I agree with Wolfgang... can you give us an idea of the rules you are working with? Actually: - using shorter names might be a last-resort, unless you were using really long names in the first place - do not use redundant code is a good practice anyway! - agreed, evals are evils :) - changing the DialectConfigurations is absolutely dangerous, do that at your own risk :) -- View this message in context: http://drools.46999.n3.nabble.com/Package-footprint-tp4019721p4019735.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] Cutom Attributes in Drools
Davide, Thanks for the suggestions. I was considering using the MetaData as well, since it allows both evaluation on the LHS (just like the example you have) as well as on the RHS where I can get the MetaData through code and use it in the application. And like you have suggested I can use dedicated Fact Types for the RHS, the requirement for us is also for our business users to be able to set these attributes/properties when creating or updating a rule in Guvnor, so having a predefined list (attribute name as well as the values) to choose from makes it easier and error free, and since its not possible with MetaData I was wondering if there is another way to achieve this with Custom Attributes. Also thanks for the heads up on Rule Overridability features being added. The current scenario I was trying to solve is where certain rule would generate a Hard Stop for the application process (Non Overridable), while others would generate a Confirmation message for the users to acknowledge and continue or to abandon processing (Overridable). And since all rules in our environment have to set this property I was wondering if we could do this with a Custom Attribute that could be set by the rule (only when it fires) and evaluated in the application to determine the course of action to take. Again thanks for your response, and I now understand the options available. dme -- View this message in context: http://drools.46999.n3.nabble.com/Cutom-Attributes-in-Drools-tp4019692p4019744.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor example how to access rules in database instead sample.drl file?
Your best option would be to use a change-set. There is such an example, using the mortgages-sample repository in /guvnor/guvnor-examples. You could also use the REST API to retrieve rules, but for now the above should give you a starting point. With kind regards, Mike On 12 September 2012 20:18, richard rx7...@yahoo.com wrote: Newbie here, How do I access the rules in mortgage/test in sample versus having the rule included in a .drl file? Guvnor is up and running in tomcat. Thanks for your help. -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-example-how-to-access-rules-in-database-instead-sample-drl-file-tp4019713.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] Drools - Search and Reporting
Hi, Is there any way to search and/or generate reports from the Rule Repository based on different criteria like Facts, Field Values, Attributes, MetaData etc. E.g. If I have a rule rule Test when @SomeMetaData(value1) ruleflow-group abcd p : Person (age 25, country = XYZ) then p.setSomeField(value); I would like to search for all rules in the ruleflow-group abcd, and MetaData=SomeMetaData; or for rules which are defined for Person with age as a criteria; or for Person with age 25 etc. I would like to do this in Guvnor and Eclipse if possible. If the features do not exist what would be the best way to write a custom search feature to satisfy this requirement. Thanks, dme. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Search-and-Reporting-tp4019747.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools - Search and Reporting
How do, It sounds a lot like what I was looking for recently. Mike provided the following thoughts: http://lists.jboss.org/pipermail/rules-users/2012-July/027897.html I haven't got stuck into any of it yet though, so I can't provide any feedback on what's working (or not) for me. Steve On 13 Sep 2012, at 15:39, dme1 meh...@hotmail.com wrote: Hi, Is there any way to search and/or generate reports from the Rule Repository based on different criteria like Facts, Field Values, Attributes, MetaData etc. E.g. If I have a rule rule Test when @SomeMetaData(value1) ruleflow-group abcd p : Person (age 25, country = XYZ) then p.setSomeField(value); I would like to search for all rules in the ruleflow-group abcd, and MetaData=SomeMetaData; or for rules which are defined for Person with age as a criteria; or for Person with age 25 etc. I would like to do this in Guvnor and Eclipse if possible. If the features do not exist what would be the best way to write a custom search feature to satisfy this requirement. Thanks, dme. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Search-and-Reporting-tp4019747.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] Data Model Dependencies in Guvnor
Hi, I have created 2 projects in Eclipse - the first one is the Base Project with the Model defined for this as BaseModel.jar. The send one is the Extension Project which inherits the BaseModel and extends it, this Model is called ExtendedModel.jar. In Eclipse I can set the dependency on BaseModel in the Extended Project and can write rules using the Base and Extended Models. Now I create 2 packages in Guvnor one to represent the Base Project, the second to represent the Extended Project. I upload the BaseModel to the BaseProject and the associated technical rules and this all works well. In the Extended Package I upload the BaseModel.jar successfully, however when I try to upload the ExtendedModel.jar it gives me an Error. The only way I can resolve my error is to update the ExtendedModel.jar to include all classes from BaseModel.jar, so it seems like the Guvnor requires all dependencies to be resolved within the Model jar and cannot reference other Data Models within the same package. Is there a way for Guvnor to lookup the other Models for dependencies and resolve the dependencies? If not what is the recommended approach for specifying dependent models in Guvnor? Thanks, dme -- View this message in context: http://drools.46999.n3.nabble.com/Data-Model-Dependencies-in-Guvnor-tp4019750.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools - Search and Reporting
Thanks. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Search-and-Reporting-tp4019747p4019751.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Cutom Attributes in Drools
I would not store the result of the (missed) activation of a rule in a
rule
attribute, anyway. Can't you just use a dedicated fact(s) for that?
I face a similar issue where the target audience are business users i.e
users that dont really understanding or wish to get into logic. I am
finding myself having to resort to all sorts of tricks (using
categories/packages/standlone rule editor) to allow business users to
easily specify which rules are for what purposes and when they should
fire. I just cant rely on them using facts correctly to disable rules that
should not fire. In fact, I am now down to using only the standalone
editor and saving the rule xml in my tables (not guvnor) so that i have
full control over itemized rule display, rule search, knowledgebase
creation for different execution profiles, etc.
Overall, I increasingly tend to think rules for business users is a myth.
The business users wants rule-driven systems, yet they dont want to learn
drools. And drools DSL just doesnt cut it.
From: Davide Sottara dso...@gmail.com
To: rules-users@lists.jboss.org,
Date: 09/13/2012 01:57 AM
Subject:Re: [rules-users] Cutom Attributes in Drools
Sent by:rules-users-boun...@lists.jboss.org
You can add any metadata using the format @name( value ) or @name(
key=value ). You can then look them up using rule.getMetaData().
Please notice that there's a bug (solved by an open pull request) that
does
not let you write just @name.
In order to use those attributes to control whether a rule fires or not,
you
can use the declarative agenda, i.e. add meta-rules to your knowledge
base
such as:
rule Meta
@activationListener('direct')
when
// assuming the attribute is @region( [value] )
$a : Activation( rule.metaData[ name ] != MyDesiredRegion, $objs :
objects )
// any condition on the tuple here, if needed
then
drools.cancelActivation( $a );
end
notice that you'll have to enable the corresponding option first:
KnowledgeBaseConfiguration kconf =
KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
kconf.setOption( DeclarativeAgendaOption.ENABLED );
KnowledgeBase kb = KnowledgeBaseFactory.newKnowledgeBase( kconf );
If you want to have rules override each other, watch out for an upcoming
feature, Defeasible logic.
I would not store the result of the (missed) activation of a rule in a
rule
attribute, anyway. Can't you
just use a dedicated fact(s) for that?
Best
Davide
--
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Re: [rules-users] Cutom Attributes in Drools
It is not a myth ... but indeed, it's hard.
Most of times, you have to find one guy at client's side who is ready to learn
at least the main principles of expert-systems. For my experience, it works
well enough (ie most of rules dev time is done by the BA) in about 1 proj out
of 3. For the others, an IT guy is still needed to help the BA (which is
something doable if you have enough rules to author).
DSL are hard to set, and harder to maintain, especially while using guvnor
(using DSL in a dsrl rule is fine, but dsrl rules for non-IT guys is a myth).
Usually I try as much as I can to set a business-compliant POJO model (ie
simple, almost flat, with fields named in a way they understand what is behind)
and no DSL at all...
For the rules' firing control, it is harder ...
@dme1 : May be you can think on an agenda filter that looks for the rule's
package ? Or use category rules, which is a rule binded to a category, which
acts as a parent rule for all rules under this category (so all rules of the
same category will have the same common first conditions, which can be the test
of your control fact). But beware of that, there was a bug on sub-categories,
or when a rule has more than one category (one the first category is taken if I
remember well). A last thing could be to use verifier to ensure that all rules
have a first condition that test the control fact .
@GPatel : your approach sounds great. How much time did you spent to write such
a Guvnor alternative ?
- Mail original -
De: gpa...@tsys.com
À: Rules Users List rules-users@lists.jboss.org
Envoyé: Jeudi 13 Septembre 2012 18:47:52
Objet: Re: [rules-users] Cutom Attributes in Drools
I would not store the result of the (missed) activation of a rule in a rule
attribute, anyway. Can't you just use a dedicated fact(s) for that?
I face a similar issue where the target audience are business users i.e users
that dont really understanding or wish to get into logic. I am finding myself
having to resort to all sorts of tricks (using categories/packages/standlone
rule editor) to allow business users to easily specify which rules are for what
purposes and when they should fire. I just cant rely on them using facts
correctly to disable rules that should not fire. In fact, I am now down to
using only the standalone editor and saving the rule xml in my tables (not
guvnor) so that i have full control over itemized rule display, rule search,
knowledgebase creation for different execution profiles, etc.
Overall, I increasingly tend to think rules for business users is a myth. The
business users wants rule-driven systems, yet they dont want to learn drools.
And drools DSL just doesnt cut it.
From: Davide Sottara dso...@gmail.com
To: rules-users@lists.jboss.org,
Date: 09/13/2012 01:57 AM
Subject: Re: [rules-users] Cutom Attributes in Drools
Sent by: rules-users-boun...@lists.jboss.org
You can add any metadata using the format @name( value ) or @name(
key=value ). You can then look them up using rule.getMetaData().
Please notice that there's a bug (solved by an open pull request) that does
not let you write just @name.
In order to use those attributes to control whether a rule fires or not, you
can use the declarative agenda, i.e. add meta-rules to your knowledge base
such as:
rule Meta
@activationListener('direct')
when
// assuming the attribute is @region( [value] )
$a : Activation( rule.metaData[ name ] != MyDesiredRegion, $objs :
objects )
// any condition on the tuple here, if needed
then
drools.cancelActivation( $a );
end
notice that you'll have to enable the corresponding option first:
KnowledgeBaseConfiguration kconf =
KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
kconf.setOption( DeclarativeAgendaOption.ENABLED );
KnowledgeBase kb = KnowledgeBaseFactory.newKnowledgeBase( kconf );
If you want to have rules override each other, watch out for an upcoming
feature, Defeasible logic.
I would not store the result of the (missed) activation of a rule in a rule
attribute, anyway. Can't you
just use a dedicated fact(s) for that?
Best
Davide
--
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http://drools.46999.n3.nabble.com/Cutom-Attributes-in-Drools-tp4019692p4019736.html
Sent from the Drools: User forum mailing list archive at Nabble.com.
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communication (including any attachments hereto) is confidential and is
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entity to whom it is addressed. If the reader of this message is not the
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error and that any review,
Re: [rules-users] Cutom Attributes in Drools
Thank you for reporting this user experience... and I think this is of interest for other users too. I would address your problem at different levels.. You basically are asking for a more declarative approach to writing business rules, and that is perfectly understandable. The DRL rules are technical rules and are somewhat in between a purely declarative language and a programming language. This said, rules should fire or not depending on the context: if that context is part of the business logic, i.e. lives at the same level of the other preconditions, it should be added to the premises of the rules, and now the problem is finding a better language for your knowledge engineers to model business rules. If instead the logic can be understood to be a meta-level logic, so that you'd have to create innatural auxiliary control facts, you could possibly explore the meta-rule approach I outlined in my previous comment. Of course, this still suffers from the same technicality issue, but the rules would be written by the business users and the meta rules by the technical ones... (btw The reason for not updating metadata is that they are defined statically at the rule level, whereas you would actually be interested in the activations! and this is quite different) Also remember that Drools is community driven: if you think that there is some missing feature, please submit a proposal (e.g. would something like SBVR be more suitable for you?), maybe others will join you in supporting that. A critical mass may help to get it done, and of course you can help and contribute :) -- View this message in context: http://drools.46999.n3.nabble.com/Cutom-Attributes-in-Drools-tp4019692p4019754.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Cutom Attributes in Drools
Thanks for the suggestions. However I have rules where the Control Fact is not mandatory, as well as there is a choice between multiple elements (LHS and RHS) so I have to come up with a Dummy which says something like does not apply to this rule, a bit cumbersome but an approach that can be explored. @Davide - For the override rules, are you able to advise when this feature will be available? Also in the interim is there a workaround that can be used to simulate this feature? Thanks, dme -- View this message in context: http://drools.46999.n3.nabble.com/Cutom-Attributes-in-Drools-tp4019692p4019755.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Adding multi-select listbox to Guvnor for entering array of values in 'IN' condition
Hi Ken, This requirement, I believe, is already captured here: https://issues.jboss.org/browse/GUVNOR-1858 Please be sure to add your comments, to ensue when it is implemented your use-case is supported. With kind regards, Mike On 12 September 2012 20:56, Ken Archer karc...@telogical.com wrote: To author LHS conditions that use an array of values, like IN or NOT IN, Guvnor requires entry of a comma-delimited list of values in a textbox. I would sure like to provide the same type of db-enabled list box for selecting multiple values that Guvnor supports for selecting single values. However, I can't seem to find a way to do this. Any thoughts? Ken -- View this message in context: http://drools.46999.n3.nabble.com/Adding-multi-select-listbox-to-Guvnor-for-entering-array-of-values-in-IN-condition-tp4019714.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 example how to access rules in database instead sample.drl file?
I am able to get a list of the rules from the mortgage in the database, but how do I set up the java when I fire the rules, to get them to execute the underage rule? Viewing source for: Underage 1. | rule Underage 2. | salience 10 3. | dialect mvel 4. | when 5. | application : LoanApplication( ) 6. | Applicant( age 21 ) 7. | then 8. | application.setApproved( false ); 9. | application.setExplanation( Underage ); 10. | retract( application ); 11. | end I assume I need an application class and Applicant class, but where does LoanApplicatiion come from. I do not see it anywhere in the examples in the docs? -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-example-how-to-access-rules-in-database-instead-sample-drl-file-tp4019713p4019759.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor example how to access rules in database instead sample.drl file?
The fact types/classes are declarative. Look in the model definition in Guvnor. When you come to use your own classes you will need to upload the JAR to Guvnor as a new JAR model and also include in your client classpath. Models uploaded to Guvnor only serve to drive the UI and are not included in the rule package the change set downloads from Guvnor. This will make mire sense when you get to that stage, but please feel free to drop by when you get there. sent on the move On 13 Sep 2012 20:53, richard rx7...@yahoo.com wrote: I am able to get a list of the rules from the mortgage in the database, but how do I set up the java when I fire the rules, to get them to execute the underage rule? Viewing source for: Underage 1. | rule Underage 2. | salience 10 3. | dialect mvel 4. | when 5. | application : LoanApplication( ) 6. | Applicant( age 21 ) 7. | then 8. | application.setApproved( false ); 9. | application.setExplanation( Underage ); 10. | retract( application ); 11. | end I assume I need an application class and Applicant class, but where does LoanApplicatiion come from. I do not see it anywhere in the examples in the docs? -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-example-how-to-access-rules-in-database-instead-sample-drl-file-tp4019713p4019759.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 example how to access rules in database instead sample.drl file?
I guess I don't understand, I am able to pull the rules from the db.
I can see how the helloworld example works because i see stuff being used in
sample.drl.
Dummy rule : mortgages : RULE
Underage : mortgages : RULE
Bankruptcy history : mortgages : RULE
No bad credit checks : mortgages : RULE
no NINJAs : mortgages : RULE
Row 3 Pricing loans : mortgages : RULE
Row 1 Pricing loans : mortgages : RULE
Row 2 Pricing loans : mortgages : RULE
CreditApproval : mortgages : RULE
RegexDslRule : mortgages : RULE
using the changeset.xml
and using this loop
for( KnowledgePackage kpkg : kbase.getKnowledgePackages() ) {
CollectionRule rules = new ArrayListRule( kpkg.getRules() );
for( Rule rule : rules ) {
System.out.println( rule.getName().toString() + : +
rule.getPackageName().toString() + : +
rule.getKnowledgeType().toString());
}
}
--
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Re: [rules-users] Guvnor example how to access rules in database instead sample.drl file?
Did you look at the model in Guvnor and the Guvnor example I referenced?
If things still aren't clear pop by to #guvnor on IRC tomorrow (9:00 GMT
onwards) and it will be easier to talk you through your problems.
sent on the move
On 13 Sep 2012 21:57, richard rx7...@yahoo.com wrote:
I guess I don't understand, I am able to pull the rules from the db.
I can see how the helloworld example works because i see stuff being used
in
sample.drl.
Dummy rule : mortgages : RULE
Underage : mortgages : RULE
Bankruptcy history : mortgages : RULE
No bad credit checks : mortgages : RULE
no NINJAs : mortgages : RULE
Row 3 Pricing loans : mortgages : RULE
Row 1 Pricing loans : mortgages : RULE
Row 2 Pricing loans : mortgages : RULE
CreditApproval : mortgages : RULE
RegexDslRule : mortgages : RULE
using the changeset.xml
and using this loop
for( KnowledgePackage kpkg : kbase.getKnowledgePackages() ) {
CollectionRule rules = new ArrayListRule( kpkg.getRules()
);
for( Rule rule : rules ) {
System.out.println( rule.getName().toString() + : +
rule.getPackageName().toString() + : +
rule.getKnowledgeType().toString());
}
}
--
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[rules-users] exception jitting problem
Hello, I recently inherited drools management of our system when the previous code owner left the company unexpectedly, and sure enough, as soon as he left, I found the errors posted below. Being new to drools, I'm pretty lost about how to begin troubleshooting this issue. I read a few forum posts about updating to 5.4 CR1 (we're using 5.4 Final), but wanted to ask and see if that's really the cause before I start changing the version. I also saw that casting as an Integer, which we do, could solve the problem. Could someone take a look at this and let me know if changing to CR1 would fix the issue or if there's a simpler solution? A little more info: We recently started increasing our traffic, which may be why we didn't see this issue before. I can't tell if this happens every 21st call or not, as was noted in other forum posts. We have multiple rules in each .drl file, and it seems like only these two rules are referenced, and none of the others. All rules in the file are called, so shouldn't the others cause the exceptions too? As far as I can tell, we're passing valid values each time to the rules. If there's any other information I can provide, please let me know. Thanks Exception in thread Thread-69 java.lang.RuntimeException: Exception jitting: !getActiveLender($loan.getCurrentLender().getName()).canMakeLoan at org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:219) at org.drools.rule.constraint.MvelConstraint.access$000(MvelConstraint.java:41) at org.drools.rule.constraint.MvelConstraint$1.run(MvelConstraint.java:201) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.VerifyError: (class: ConditionEvaluator30c1aafd8a5c4402813396a1ab9f4739, method: evaluate signature: (Ljava/lang/Object;Lorg/drools/common/InternalWorkingMemory;Lorg/drools/reteoo/LeftTuple;)Z) Expecting to find integer on stack at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2404) at java.lang.Class.getConstructor0(Class.java:2714) at java.lang.Class.getConstructor(Class.java:1674) at org.drools.rule.builder.dialect.asm.ClassGenerator.newInstance(ClassGenerator.java:173) at org.drools.rule.constraint.ASMConditionEvaluatorJitter.jitEvaluator(ASMConditionEvaluatorJitter.java:53) at org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:217) ... 5 more Exception in thread Thread-70 java.lang.RuntimeException: Exception jitting: new Integer(getCustomer().getLatestEmployer().monthlySalary) 1251 at org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:219) at org.drools.rule.constraint.MvelConstraint.access$000(MvelConstraint.java:41) at org.drools.rule.constraint.MvelConstraint$1.run(MvelConstraint.java:201) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.VerifyError: (class: ConditionEvaluatorcc9abc72a67b4dd2bbde979a1a2baa48, method: evaluate signature: (Ljava/lang/Object;Lorg/drools/common/InternalWorkingMemory;Lorg/drools/reteoo/LeftTuple;)Z) Expecting to find integer on stack at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2404) at java.lang.Class.getConstructor0(Class.java:2714) at java.lang.Class.getConstructor(Class.java:1674) at org.drools.rule.builder.dialect.asm.ClassGenerator.newInstance(ClassGenerator.java:173) at org.drools.rule.constraint.ASMConditionEvaluatorJitter.jitEvaluator(ASMConditionEvaluatorJitter.java:53) at org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:217) ... 5 more Here are the rules that seem to be causing the errors: rule Cashcure - Average Monthly Income Less Than 1251 when $loan : CMVNewLoanBean( new Integer(getCustomer().getLatestEmployer().monthlySalary) 1251) then $loan.setLenderError($loan.getCurrentLender().getName(), 20253); end rule Cashcure - Loan Cap Has Been Reached when $loan : CMVNewLoanBean( !getActiveLender($loan.getCurrentLender().getName()).canMakeLoan ) then $loan.setLenderError($loan.getCurrentLender().getName(), 20259); end -- View this message in context: http://drools.46999.n3.nabble.com/exception-jitting-problem-tp4019764.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___
[rules-users] problem with pesisted stateful knowledge session and Length Sliding Window
Hi all, nbsp;nbsp;I am facing a problem with persisted stateful knowledge session, please help me. My rule is listed as below: package com.sample import com.sample.Event; import java.util.List; declare Event nbsp;nbsp;@role(event) end rule test nbsp;nbsp;when nbsp;nbsp;nbsp;nbsp;$list : List() from collect(Event() over window: length(2)) nbsp;nbsp;then nbsp;nbsp;nbsp;nbsp;System.out.println(print out in rule, size of the list collected from window is: + $list.size()); end nbsp;nbsp;The problem is, when use a normal stateful session(created by the calling kbase.newStatefulKnowledgeSession()), *when a third fact inserted, the session working memory only retains list of 2, as expected.* when use a persisted stateful session(created by the calling JPAKnowledgeService.newStatefulKnowledgeSession()), insert 2 facts first. Then restore this session by JPAKnowledgeService.loadStatefulKnowledgeSession(), and *insert a third fact, the session working memory grows to list of 3?* nbsp;nbsp;By the way, I am using version 5.2.0.Final. And after I upgrade to version 5.4.0.Final, the test result of persisted session becomes to normal.*The attachment is my test program and you can repeat it.* nbsp;nbsp;I want to ask you if there is something missing that I need to do in 5.2.0.Final? nbsp;nbsp;Thank you in advance, any help will be appreciated. http://drools.46999.n3.nabble.com/file/n4019766/drools-session-persis-demo.zip drools-session-persis-demo.zip -- View this message in context: http://drools.46999.n3.nabble.com/problem-with-pesisted-stateful-knowledge-session-and-Length-Sliding-Window-tp4019766.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] Changing the java compiler level in drools
I want to change the java compiler level to 1.6 but it doesn't seem to work for me. I am trying to use generics in the consequence part. Following is my code that I used to change the compiler level. *Drools Version: 5.2.1 GA JDK Version : 1.6* *final Properties properties = new Properties(); properties.setProperty(drools.dialect.java.compiler, JANINO); properties.setProperty(drools.dialect.default, java); properties.setProperty(drools.compiler.lnglevel, 1.6); PackageBuilderConfiguration packageBuilderConfiguration = new PackageBuilderConfiguration(properties,(ClassLoader[]) null); final KnowledgeBuilder knowledgeBuilder = KnowledgeBuilderFactory .newKnowledgeBuilder(packageBuilderConfiguration);* Let me know where I am going wrong. Thanks for the help. -- View this message in context: http://drools.46999.n3.nabble.com/Changing-the-java-compiler-level-in-drools-tp4019770.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
