May 2014 - rules-users - Jboss List Archives

by mfalaize

Hi, I was wondering how to use efficiently DSL with my rules and I have several questions about it : - First, I have the impression that we can use DSL files only in the same package of the DSLR file. When I tried to load DSL files by the kmodule.xml (specifying the different packages in the packages attribute of kbase) it does not work. Do I have to load each DSL files programmatically or is there a way to load it automatically by the kmodule.xml (and if it is the case, how can we handle the parsing order of these files ?) ? - An underlying question is is this a good practice to divide DSL files ? I would like to translate all my rules in french and to put the generic translations in a unique DSL file to reuse it in all of my different DSLR files. - I noted that we can use more than one DSL file for one DSLR file (it works at the runtime) but when it is the case the DRL viewer of the DSL rule editor does not work and I don't have autocompletion. I tried to put several expander instructions but it fails. Is there a way to make it work ? I think DSL stuff is underestimate at this moment by the community and for my last question I would like to know what is the future plans about this feature ? Maybe I could help to develop it. Regards -- View this message in context: http://drools.46999.n3.nabble.com/Efficiency-questions-about-DSL-tp402877... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 7 months

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Startup KIE Workbench without network connection

by Sandjaja, Dominik

Hello, I try to setup KIE Workbench (6.1.0.BetaX) on Tomcat 7 on a Windows 2012 Server without connection to the internet. When starting up, the KIE-WB does not start up. I get the following errors in localhost.log (cut for better readability): Mai 15, 2014 5:08:18 PM org.apache.catalina.core.StandardContext listenerStart Schwerwiegend: Exception sending context initialized event to listener instance of class org.jboss.weld.environment.servlet.Listener org.jboss.weld.exceptions.DeploymentException: Exception List with 1 exceptions: [...] Caused by: java.lang.RuntimeException: https://github.com/guvnorngtestuser1/guvnorng-playground.git: cannot open git-upload-pack [...] Caused by: java.net.ConnectException: Connection time out: github.com This happens because the initial demo repository is downloaded - I do not want and need those repositories! I could work around this by copying the TOMCAT_HOME/bin/.niogit directory to that server and have it start up then. BUT: IMHO it is an inconvenience, maybe even a bug, that an internet connection is needed to set up the Drools KIE Workbench. How are we supposed to tell our infrastructure team that we need an open connection to "some website with code" to setup an editing system for internal knowledge ... Should I file a bug for that? Is there a way to deactivate the downloading of the initial demo repository? Could it somehow be delivered with the KIE-WB package? Thanks Dominik ........................................................................... mit freundlichen Gr??en / kind regards Dominik Sandjaja Fon: +49 (0) 203 60878 183 Fax: +49 (0) 203 60878 222 e-mail: dominik.sandjaja(a)it-motive.de it-motive AG Zum Walkm?ller 6 47269 Duisburg info(a)it-motive.de http://www.it-motive.de .............................................................................. Vorsitzender des Aufsichtsrats: Dr.-Ing. J?rgen Sturm Vorstand: Horst-Dieter Deelmann (Vors.), Matthias Heming, Christoph Tim Klose HRB 9207, Amtsgericht Duisburg

11 years, 7 months

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Map<String,String> and modify() can't be together

by rjh

Hi, I got a weird problem. A Java List/Map with generics can be used together with modify() in the same rule. For example, a simple rule like the following: package com.sample import java.util.Map; import java.util.HashMap; declare TestFact @propertyReactive data : String end rule "init" when not TestFact() then insert (new TestFact()); end rule "Test Rule" when $fact : TestFact() then System.out.println( "Hello" ); Map<String,String> a = new HashMap<String,String>(); modify ($fact) {setData("0")} end I got the following error message: java.lang.RuntimeException: Error while creating KieBase[Message [id=1, level=ERROR, path=rules/Sample.drl, line=18, column=0 text=Unable to resolve type Map<String,String>: Unable to find class 'Map<String,String>']] at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:260) at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:400) at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:375) at com.sample.DroolsTest.main(DroolsTest.java:17) However, if I remove "<String,String>" from "Map<String,String>", or remove the "modify" line, the code is correct then. Thank you! Jinghai -- View this message in context: http://drools.46999.n3.nabble.com/Map-String-String-and-modify-can-t-be-t... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 7 months

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Newbie: is my data model suitable for drools ?

by lindenb

Hi all, I'm working in the field of bioinformatics where I study more a large number of variations (N> 10E6) along the human genome among individuals affected by a genetic disease. ( * ) my data looks like this (much simplified !) #CHROMOSOME POSITION GENE PROPERTIES SAMPLE1 SAMPLE2 SAMPLE3 chr1 987 GENE1,GENE3 score=1 null A/A A/G chr1 988 GENE3 score=4;id=989 A/G null A/A chr1 1988 null score=4;id=989 C/G null C/A People in my lab have to filter those variation using different strategy, they then extract the overlapping genes and then filter those genes to find one or more gene that could explain the disease. Currently they use knime.org to run those filters. (http://www.myexperiment.org/workflows/2320.html ) But I've got the feeling that drools could be used to filter those variations. Users would 'just' have to write some rules, run the engine and get the result. Rules would be removed/switched to get the result for another strategy. Question: 1) is drools a good choice here ? 2) how should I model my data ? If I use this java model: class Gene { List<Variation> getVariations(); } class Variation { String getChromosome(); int getPosition(); List<Gene> getGenes(); List<Genotype> getGenotypes(); } class Genotype{ Variation getVariation(); Sample getSample(); String getDNA(); } it will create a large graph, can drools support it ? 3) Where in the documentation can I find how to easily set the state my objects in order to filter them. E.g: variations ->[filters1]-> [filter2]----------------->[fiilter5] -> result `>[filter3]->[filter4]--/ Thank you, Pierre (*) http://www.1000genomes.org/wiki/Analysis/Variant%20Call%20Format/vcf-vari... -- View this message in context: http://drools.46999.n3.nabble.com/Newbie-is-my-data-model-suitable-for-dr... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 7 months

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Deploy Rules in separate OSGi bundles

by Ephemeris Lappis

Hello. I'd like to separate cleanly my Drools system into 2 OSGi bundles : 1) the java code that uses the Kie API (6.0.1) and exposes service interfaces to the business part of the applications. Its code relies on someting like : KieServices kieServices = KieServices.Factory.get(); kieContainer = kieServices.getKieClasspathContainer(); KieSession kieSession = kieContainer.newKieSession(name); 2) the rules themselves, just including the kmodule.xml that manages the ksessions and the drl files in their own packages. Let say the first module is S and second is R, while the applcation is A. This build model works nice in my eclipse with correct maven dependancies set from A to both S and R. Classes in the application A calls the service from the S. The kieContainer has resolved as expected the kmodule and associated the rules files for the given packages, and the application can get the ksession for a given name. I'm afraid that the same code won't run as nice as it does when deployed on my Karaf (Service MIX) OSGi environment. I suspect that the KieContainer may encounter some troubles to detect the kmodule.xml in the META-INF and the DRL files out of another jar. Is there anyone with such experiences ? Any advice to do it ? Thanks in advance. Regards. -- View this message in context: http://drools.46999.n3.nabble.com/Deploy-Rules-in-separate-OSGi-bundles-t... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 8 months

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Drools 5.5 and Java 7 syntax

by Ephemeris Lappis

Hello.It seems that Drools 5.5 experiences problems translating RHS code with Java 7 syntax, while it's running with JDK 1.7.For example, literal numbers with thousand separator of form "*10_000*" are detected as errors, and generics forms like *List l = new ArrayList<>()*; is also refused because of the <> that must be removed.Is it a natural behavior or is there a way to majke it use a Java 7 aware parser ?Thanks for your help.Regards. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-5-5-and-Java-7-syntax-tp4029588.... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 8 months

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Rules don't execute using MVEL syntax in RHS - Possible Bug

by jlprat

Hi all, I'm developing an application with Drools 6.0.1.Final and I'm encountering a really strange problem I can't understand, and which I think it's due to a bug in MVEL. I'm running some rules using fireUntilHalt and if I use the MVEL syntax withing the RHS to access some bean properties, some rules don't get executed when they should. However if I replace the bean property syntax sugar for the real getter method, everything works as it should. I've created a little gist to illustrate this problem, it contains 2 drools versions (one using MVEL another without) and a test to check the behavior. You can check it Rule is not fired <https://gist.github.com/jlprat/f20e6dbe976cff163d2c> Does anybody have an idea why this is happening? Thank you in advance. Josep Prat -- View this message in context: http://drools.46999.n3.nabble.com/Rules-don-t-execute-using-MVEL-syntax-i... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 8 months

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Re: [rules-users] HTTP 401 Unauthorized when using KIE API on Workbench M2 repository

by Patel, Ronak (Autonomy)

Anyone have any ideas on this? I have some new information: just to check if my preemptive authentication configuration in settings.xml worked at all, I set my KIE module as a dependency on a project and used command line Maven 3.2.1 to compile. It successfully authenticated with the Workbench Maven repository and downloaded the module into my local Maven repository. I had Fiddler log the HTTP requests and saw that the requests to the Workbench repo had the basic authentication request header, as I expected. So any ideas on why the request generated by the API (Aether?) wouldn't have this header? It seems like it's not picking up the preemptive authentication settings. Thanks, Ronak From: Patel, Ronak (Autonomy) Sent: Monday, May 12, 2014 5:01 PM To: rules-users(a)lists.jboss.org Subject: HTTP 401 Unauthorized when using KIE API on Workbench M2 repository I'm having trouble authenticating to access the Workbench Maven repository through the KIE API (kie-ci). My code is the following and fails on the second line with an exception that says something like module not found. I see the more specific 401 error in the local Maven repository in the resolver-status.properties file. KieServices ks = KieServices.Factory.get(); KieContainer kContainer = ks.newKieContainer(ks.newReleaseId("com.hp.pa.sample", "realestate", "LATEST")); I've tried putting in my settings.xml file both suggestions in https://bugzilla.redhat.com/show_bug.cgi?id=1059584#c4 (also saw the preemptive one in https://bugzilla.redhat.com/show_bug.cgi?id=1037556 and other threads/forums and bug reports), but I continue to get the same error. I did some further investigation using Fiddler and I see that the credentials are not being included in the HTTP request the code sends for resources in the Workbench Maven repository. I was expecting the basic authentication header to be in here. The HTTP request always looks like this (server name changed for security reasons): GET http://kiewbserver:8080/kie-drools-wb/maven2/com/hp/pa/sample/realestate/... HTTP/1.1 Host: kiewbserver:8080 Pragma: no-cache Cache-Control: no-cache, no-store Accept-Encoding: gzip Connection: keep-alive Connection: keep-alive Accept: */* User-Agent: Aether And the response is a typical HTTP/1.1 401 Unauthorized with the standard JBoss error page as the body. Using the composer feature in Fiddler, if I issue this same request with the basic authentication header included, it works, returning an HTTP 200 response with the requested file. If I remove the authentication requirement from the Maven repository using the workaround described in bug 1059584 (referenced above), all my code works fine. I followed the procedure to create a user for the Workbench on JBoss AS that is demonstrated in the start of this video: http://www.youtube.com/watch?v=vj3MNmiUnvY. That's the user whose credentials I've tried putting in my settings.xml. Is there anything else that needs to be done on the server side? Any other ideas on what I may have missed or how to debug this further? Thank you, Ronak Patel Software Designer HP Autonomy

11 years, 8 months

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Drools 6 problem with events when using "after"

by Jan Šťastný

Hi, I use rules together with processes. One global process signals the TurnEvent to other processes in the working memory. declare TurnEvent @role(event) end Then, when started a process, which waits for TurnEvent another event is signaled - the ProcessWaitsForTurnEvent declare ProcessWaitsForTurnEvent @role(event) processId:Long end signalled in rule rule "Build Unit Process Waits For Turn" salience 50 when WorkflowProcessInstance( getProcessId()=="cz.muni.fi.civ.newohybat.bpmn.buildUnit" ,$processId:id ) not ProcessWaitsForTurnEvent(processId==$processId) then insert(new ProcessWaitsForTurnEvent($processId)); end Then there is the last rule which signals each TurnEvent for which there is ProcessWaitsForTurnEvent for a Process: rule "Signal New Turn" dialect "mvel" when $pi:ProcessWaitsForTurnEvent( $processId:processId ) TurnEvent(this after $pi) from entry-point "GameControlStream" then kcontext.getKnowledgeRuntime().signalEvent("turn-new",null,$processId); end On my machine, everything works fine. I tried that also on another, less powerful 32-bit machine and tests fails on following issue. When I run my test case, where I create the process the "Build Unit Process Waits For Turn" fires, ProcessWaitsForTurnEvent is inserted, but then I insert TurnEvent, "Signal New Turn" is not fired. I am quite desperate, cause I have even tried to set @expires attribute for ProcessWaitsForTurnEvent to prevent earlier expiration, with no succes. Any suggestion appreciated. Thanks. Jan

11 years, 8 months

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upgrading drools 5.4 to 6.0

by ganeshneelekani

Hi All, I am using drools version 5.4 and I used url of changeset.xml to call the the drools-guvnor from my java code. Now I am upgrading to drools 6.0 workbench version(Let me know if camel version is used), How can I call the drools workbench from my java code. Thanks Ganesh Neelekani -- View this message in context: http://drools.46999.n3.nabble.com/upgrading-drools-5-4-to-6-0-tp4029547.html Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 8 months

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rules-users May 2014