June 2014 - rules-users - Jboss List Archives

Activation-group ignored when working with events in Drools 6 ?

by kenota

It seems that activation-group rule attribute is ignored when rule works with events (@role(event)). Example rule file: declare LocalEvent @role(event) end rule "Rule1" activation-group "test" when $event : LocalEvent() then System.out.println("I am rule 1 " + $event); end rule "Rule2" activation-group "test" when $event : LocalEvent() then System.out.println("I am rule 2 " + $event); end If i create event and insert it into KieSession both rules are fired, if i remove @role(event) line then only one rule is fired. I am experiencing this behaviour in 6.0.1.Final and 6.1.0.Beta4, but seems like everything is working as expected in 5.5.0.Final. Is that expected behaviour or a bug? -- View this message in context: http://drools.46999.n3.nabble.com/Activation-group-ignored-when-working-w... Sent from the Drools: User forum mailing list archive at Nabble.com.

9 years, 10 months

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KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBase kbase) throws exception

by A. Craig West

I had some issues getting my codebase to work in Drools 5.6.0 (it worked in 5.5) so I am now trying the legacy api with 6.0.1Final. When I call: KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBase kbase) I get an exception: java.lang.ClassCastException: org.drools.impl.adapters.KnowledgeBaseAdapter cannot be cast to org.drools.core.impl.KnowledgeBaseImpl

9 years, 10 months

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ruleflow-group vs. agenda-group vs. activation-group ?

by Péter Gergely, Horváth

Hi All, I've been experimenting with agenda-group and ruleflow-group features and I am now a bit confused. The documentation states that agenda-group and ruleflow-group features have been merged, but I'm not sure how this relates to activation groups. ruleflow-groups used to be a rule-flow feature, driven by the .RF file, requiring JBPM engine behind the scenes. Agenda-group work without the presence of JBPM: does it mean we can use the RF file for visualizing the agenda-groups as well? Could someone please shed some light on the differences between these constructs? Which one is the currently recommended approach (when?) for controlling rule execution flow? Thanks, Peter

9 years, 10 months

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Sharing common rules between KieSession

by Péter Gergely, Horváth

Hi All, We develop a software used by multiple companies. A small part of the rules is slightly different for every single company. We would like to package all of the rules into the application, so the code should - based on environment information - decide, which ones to load (using KieClasspathContainer). KieServices kieServices = KieServices.Factory.get(); KieContainer kContainer = kieServices.getKieClasspathContainer(); KieSession kSession = kContainer.newKieSession("foo-company"); Since ~90% of the rules is the same, I'm wondering what the best approach could be in this situation: duplicating common rules in every KieSession package seems to be a very bad idea. Say I define a set of general rules in* rules.common* package and rules specific to company Foo (*rules.foo*) and Bar (*rules.bar*), is there any way to load and merge the two into a single KieSession? Could I somehow say, "please give me the rules from rules.common and rules.foo"? I know that I could use the low level APIs to load rule files individually, but that is something I would like to avoid. Is there any better solution for this? Thanks, Peter Is there any way to load multiple KieSessions and combine them into one? For example, if there are companies Foo and Bar, could I For the application should

9 years, 10 months

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How to use already saved compiled packages

by AnuRadha

Hi, We are using Drools 4.0.7 in our Insurance application(policies will be created). We are facing one issue with saved packages at run time. Using Jboss server on deployment all the rules are compiling and the .pkg files storing in a directory folder(eg. C:/Rules). On restart of Jboss server, now using the saved packages from C:/Rules. App is deploying properly, here while creating a new policy everything working fine. But if we go thru already existed policy the app is hanging at setting up facts. On debug one of the fact is 'PolicyImage' which is all the info of the policy will be there, here it is hanging up. But some times taking much time to setup facts. private void setupFacts(StatefulSession session, List facts) { try { List<FactHandle> factHandles = new ArrayList<FactHandle>(); for(int i=0; i < facts.size(); i++) { factHandles.add(session.insert(facts.get(i))); // here taking much time/hang } } finally { log.info("< setupFacts"); } } Can anybody help what could be the reasonfor this. -- View this message in context: http://drools.46999.n3.nabble.com/How-to-use-already-saved-compiled-packa... Sent from the Drools: User forum mailing list archive at Nabble.com.

9 years, 10 months

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Rules storage without Guvnor?

by Péter Gergely, Horváth

Hello All, We are evaluating Drools for our use case and would have a question for storing rules files. We are in a relatively constrained environment, where getting Guvnor up and running does not seems to be a valid option. Since we would only need the core repository functionality so that we can separate rule deployment from application deployments (and none of the advanced features like online editing etc), I think it would make more sense to have a light-weight alternative for storing the rule files. Being able to pick up rules from an NFS share of from a database CLOB field would be perfectly sufficient for us. I have worked with JBPM4 quite a lot, where the core engine contained support for versioned storage of the process definitions in the database itself [1]. Is there any similar feature in Drools, where the rules can be deployed to e.g. a database or any other repository solution, (without using Guvnor)? I haven't found too much details on this topic, but for me it seems that the only approach would be to have some custom logic, which programmatically checks for rule updates and re-creates the whole knowledgebase on any update. I am wondering whether there is any more sophisticated solution in Drools where at least update checking/rule reconfiguration could be delegated to the engine. Any inputs are appreciated. Thanks, Peter [1] http://docs.jboss.com/jbpm/v4/javadocs/org/jbpm/api/RepositoryService.html

9 years, 10 months

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About the Quest Of : How to push changes to cloned repo onKie-Workbench

by DonnieDarko

Hi: The ori question is here: http://drools.46999.n3.nabble.com/How-to-push-changes-to-cloned-repo-on-K... It send me this email after I reply it derectly; But this question confuse me fo a week, So i answer the email for looking more help quickly,forgive me After reading the origin prob, I think the question is We can clone the project from wb's git server, like git clone git://10.101.81.72:9418/uf-playground Take attention: 1.we use the git protocol to clone the git project 2.it do work well 3.we use git bash to clone the project(whatever u use other tools: git gui, eclipse egit plugin, svn git merger) 4.we can add files,we can commit local modified, we can create branches, but we cannot push the modifies to server/master，we cannot merge branches to master 5.i donot think the kie-config-cli is a good enough tool a.i use the jboss-eap-6 as my appserver,there is a exception about "address is already used" when i run the kie-config-cli.sh after i deploy Guvnor in the same machine b.i meet the same problem about: lllpcsd@lllpcsd-VirtualBox:~/drools_git_ws/uf-playground$ git push fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. so 1.this is about how to config Git security cer in Guvnor workbench 2.we just want to develop projects with git tool, just want to push/merge codes!!! 3.i don't get more information from the drools's document it say: org.uberfire.nio.git.ssh.cert.dir: Location of the directory .security where local certtificates will be stored. Default: working directory and then? and then? and then? we know the .security directory is located $work_dir/.security, we cannot get enough information about how to config things about Git's SSH key or security trust :< we know the github.com platform will advance us to set the SSH key to do developing works, but the Guvnor has no UI function to set this. May be I do the wrong thing about clone, May be I should clone the code with SSH, how to config ssh is always a problem May be these are all wrong action about how to use Guvnor correctly The drools's document is so powerful and so poor :< Help If you reply to this email, your message will be added to the discussion below: http://drools.46999.n3.nabble.com/How-to-push-changes-to-cloned-repo-on-K... To unsubscribe from How to push changes to cloned repo on Kie-Workbench, click here. NAML

9 years, 10 months

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mvn deploy to workbench fails: Return code is: 405, ReasonPhrase:Method Not Allowed.

by jmterrettaz

Hi I have installed the Drools Workbench kie-drools-wb-distribution-wars-6.0.1.Final-jboss-as7.0.war on JBoss EAP 6.2. When I try to do a mvn deploy to the workbench it fails with "Return code is: 405, ReasonPhrase:Method Not Allowed." Here the distributionManagement section of the POM: <distributionManagement> <repository> <id>guvnor-m2-repo</id> <url>http://localhost:8080/kie-drools-wb/maven2/</url> </repository> </distributionManagement> I also defined the server as follow in my settings.xml : <servers> <server> <id>guvnor-m2-repo</id> <configuration> <httpHeaders> <property> <name>Authorization</name> <value>Basic xxxoffuscatedxxxxx =</value> </property> </httpHeaders> </configuration> </server> </servers> If I give a wrong Authorization value there I get a 401 non authorized, so I think the server is correctly configured. In wireshark I see that an HTTP PUT call is made and the answer is: HTTP/1.1 405 Method Not Allowed Server: Apache-Coyote/1.1 Pragma: No-cache Cache-Control: no-cache Expires: Thu, 01 Jan 1970 01:00:00 CET Content-Type: text/html;charset=utf-8 Content-Length: 1176 Date: Wed, 28 May 2014 12:00:44 GMT <html><head><title>JBoss Web/7.2.2.Final-redhat-1 - JBWEB000064: Error report</title> </head><body> JBWEB000065: HTTP Status 405 - HTTP method PUT is not supported by this URL <HR size="1" noshade="noshade">*JBWEB000309: type* JBWEB000067: Status report*JBWEB000068: message* HTTP method PUT is not supported by this URL*JBWEB000069: description* JBWEB000125: The specified HTTP method is not allowed for the requested resource.<HR size="1" noshade="noshade"> JBoss Web/7.2.2.Final-redhat-1 </body></html> in a more readable format: JBWEB000065: HTTP Status 405 - HTTP method PUT is not supported by this URL JBWEB000309: type JBWEB000067: Status report JBWEB000068: message HTTP method PUT is not supported by this URL JBWEB000069: description JBWEB000125: The specified HTTP method is not allowed for the requested resource. JBoss Web/7.2.2.Final-redhat-1 Can someone help? Thanks. -- View this message in context: http://drools.46999.n3.nabble.com/mvn-deploy-to-workbench-fails-Return-co... Sent from the Drools: User forum mailing list archive at Nabble.com.

9 years, 10 months

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Drools-6 WB | Why Database is Required for Indexing When GIT repo is available

by Zahid Ahmed

Hi, In Drools-6 documentation its mentioned that, "Everything is now stored as a file, including meta data. The database is only there to provide fast indexing and search. So importing and exporting is all standard Git and external sites, like GitHub, can be used to exchange repositories." (Reference : drools-docs.pdf : 2.3. New and Noteworthy in KIE Workbench 6.0.0) I want to know that why its required to store indexes in database, when we already have a repository with us, indexes could have been saved in the GIT repository itself. If we need database then now we need a license for database also. After reading this I am looking for database configurations in the documentation but I am not able to find it in the documentation. Where to configure it ? In GIT ? or in Workbench ? Regards, Zahid

9 years, 10 months

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Abstraction between rules and data model?

by Péter Gergely, Horváth

Hi All, We are evaluating Drools 6 for our use case, and face challenges where we would need some ideas from more experienced users of Drools. We have an application with a massive code base and a large number of model (entity) classes. We are in the process of moving away from inherited legacy technologies and refactoring the old code base. As a part of this work we would like extract some of the hard-coded business logic to external rules, that is why we are looking at Drools as a potential solution. What we would like to have is some kind of abstraction or mapping between actual entities and rules the business users can define so that they do not have to know the _exact_ details of the data model (field names, precise relations etc). This would be important for us so that we can refactor the old model classes without affecting business rules; also it would make life easier for the business users. While IDE support might make refactoring easier, we definitely want to have a separation between rules and entities. Given our situation, writing and maintaining "stable" wrapper/adapter classes for the sole purpose of rule processing is out of question. I have checked the documentation of Drools DSL support and for me it seems to be overkill for our use case: we do not really need a custom language, but simply an abstraction between rules and the data model classes. What I could imagine is a piece of code, (a custom property resolver? - no sure how it is called) which maps property expressions to actual properties based on a custom annotation on the entity class or something like that, so that a rule containing "Foo.bars" expression does not have to change even if we decide to rename "Foo.bars" to "Foo.barList" in the model classes. (This was just a simple example of a potential use cases) Could you please share your thoughts on this topic and point me into the right direction? Thanks, Peter

9 years, 10 months

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rules-users June 2014