January 2014 - rules-users - Jboss List Archives

by calcacuervo

Hi Guys. I am trying to add rules incrementally to the kbase, using the same ksession. I mean, when I have a new DRL, I receive it, and want to add it to the kbase (in memory), and the ksession I have will start to use this new rule too. I have been using this example, https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test... I can add new rules, but just passing all the DRLS, and creating a new KieFileSystem. I would like, when I have a new rule, just add (or modify), this rule to the working memory. Is this possible? Any idea? Thanks! Demian -- View this message in context: http://drools.46999.n3.nabble.com/Adding-rules-incrementally-tp4027631.html Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

2
1
0 / 0

Drool 6.0.0.Final, 2 question re kie-maven-plugin, please?

by Matteo Mortari

Ciao, with premise I'm not a Maven expert... I'm following now the new recommended version for 6.0 KIE project/module development as documented in [1] by generating a new maven archetype "quickstart" but if compared to the documentation I found, at least in my case, I had at a minimum to apply also the following in the pom.xml: A. the packaging must be changed to "kjar" B. if the project and the rules depend on an external library/maven artifact, say for instance the object model or domain model objects the rules will be based on, it is NOT enough to declare them in the pom.xml <dependencies>, but the exact same dependencies MUST ALSO be also declared within the kie-maven-plugin <plugin> <dependencies> as well. Failing to do so, would imply that, respectively: A. when you run Maven with the default "mvn package" or "mvn deploy" etc, the kie-maven-plugin would not trigger B. kie-maven-plugin will fail the build because unable to resolve the "external" classes referenced in the .drl, with a message similar to [ERROR] Message [id=3, level=ERROR, path=package.drl, line=3, column=0 text=Unable to find class 'classname'] Questions are: 1. Is this correct, or I'm just complicating my life without noticing, and it is existing a simpler way, please? 2. Especially point #B, is this really the intended behavior, having to replicate the dependencies in the two parts of the pom.xml ? Thanks if somebody can feedback on this, Ciao MM I'm making reference to: [1] http://docs.jboss.org/drools/release/6.0.0.Final/drools-docs/html_single/... For reference, here is an example pom.xml I'm using: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.acme</groupId> <artifactId>my-rules</artifactId> <version>0.0.1</version>  <packaging>kjar</packaging>  <dependencies>  <dependency> <groupId>com.acme</groupId> <artifactId>object-model</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> </dependencies> <build> <finalName>my-rules</finalName> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> <plugin> <groupId>org.kie</groupId> <artifactId>kie-maven-plugin</artifactId> <version>6.0.0.Final</version> <extensions>true</extensions> <dependencies>  <dependency> <groupId>com.acme</groupId> <artifactId>object-model</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> </dependencies> </plugin> </plugins>  <pluginManagement> <plugins> <plugin> <groupId>org.eclipse.m2e</groupId> <artifactId>lifecycle-mapping</artifactId> <version>1.0.0</version> <configuration> <lifecycleMappingMetadata> <pluginExecutions> <pluginExecution> <pluginExecutionFilter> <groupId>org.kie</groupId> <artifactId>kie-maven-plugin</artifactId> <versionRange>[6.0.0,)</versionRange> <goals> <goal>build</goal> </goals> </pluginExecutionFilter> <action> <ignore /> </action> </pluginExecution> </pluginExecutions> </lifecycleMappingMetadata> </configuration> </plugin> </plugins> </pluginManagement> </build>  </project>

12 years, 1 month

2
3
0 / 0

java.lang.RuntimeException: Unable to instance KieServices

by kurrent93

Hi I am trying to get started with Drools 6x, and in eclipse, I have created a Drools project, which creates the boilerplate code to run a simple drl. I have the drools runtime installed via Eclipse. Yet, when I try to run the following, I get the following error: java.lang.ExceptionInInitializerError at com.sample.DroolsTest.main(DroolsTest.java:15) Caused by: java.lang.RuntimeException: Unable to instance KieServices at org.kie.api.KieServices$Factory.<clinit>(KieServices.java:167) ... 1 more Caused by: java.lang.ClassNotFoundException: org.drools.compiler.kie.builder.impl.KieServicesImpl at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.kie.api.KieServices$Factory.<clinit>(KieServices.java:165) ... 1 more package com.sample; import org.kie.api.KieServices; import org.kie.api.runtime.KieContainer; import org.kie.api.runtime.KieSession; /** * This is a sample class to launch a rule. */ public class DroolsTest { public static final void main(String[] args) { try { // load up the knowledge base KieServices ks = KieServices.Factory.get(); KieContainer kContainer = ks.getKieClasspathContainer(); KieSession kSession = kContainer.newKieSession("ksession-rules"); // go ! Message message = new Message(); message.setMessage("Hello World"); message.setStatus(Message.HELLO); kSession.insert(message); kSession.fireAllRules(); } catch (Throwable t) { t.printStackTrace(); } } public static class Message { public static final int HELLO = 0; public static final int GOODBYE = 1; private String message; private int status; public String getMessage() { return this.message; } public void setMessage(String message) { this.message = message; } public int getStatus() { return this.status; } public void setStatus(int status) { this.status = status; } } } -- View this message in context: http://drools.46999.n3.nabble.com/java-lang-RuntimeException-Unable-to-in... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

2
1
0 / 0

Drools 6.0.1 xstream marshaling via camel config not working

by jroman

Hi all, I am not sure if I have met a bug in kie-camel-xstream marshalling (drools 6.0.1). The use case is: Java client: MiniRESTClient.java - Build a list of commands, group them under a BatchExecutionCommand and send them to a camel route. Camel route: camel-client.xml - Marshal the commad, send it to a drools server and unmarshal the result. The problem is that the marshalling part seams to fail with: It seams that the xstream marshaler is building a java.util.ArrayList instead of the expected org.apache.cxf.message.MessageContentsList The funny thing is that, if I explicitly do the marshaling in the java client with: And remove the from the policy definition no exception is thrown and the client-server communication works as expected. Besides, I have the reverse policy in the server side and there is no problem there. Am I doing something wrong? I think I have attached everything needed to test the case: my_tests.zip <http://drools.46999.n3.nabble.com/file/n4027607/my_tests.zip> Thanks for reading down to here and for any help you could provide. ----- -- jroman -- View this message in context: http://drools.46999.n3.nabble.com/Drools-6-0-1-xstream-marshaling-via-cam... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

2
4
0 / 0

drools maven acrhetype?

by kurrent93

Hi I would like to start using drools 6. Is there a maven archetype to quickly get a drools project setup? If yes, where can I find it? Thanks -- View this message in context: http://drools.46999.n3.nabble.com/drools-maven-acrhetype-tp4027620.html Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

1
0
0 / 0

Using Advanced Enumeration Concepts in guvnor

by abhinay_agarwal

The following sentences are taking directly from the user guide: / 'Person.age' : (new com.yourco.DataHelper()).getListOfAges() This assumes you have a class called "DataHelper" which has a method "getListOfAges()" which returns a List of strings (and is on the classpath). You can of course mix these "dynamic" enumerations with fixed lists. You could for example load from a database using JDBC. The data enumerations are loaded the first time you use the guided editor in a session./ Now, I would like to know how guvnor would connect to the database ? Inside the getListOfAges(), I want to hit the database and get the list of ages, put it inside a Map<String, List<String>>. The example that is shown in the user guide is again hard coding the values. >From the user guide : /public class SampleDataSource2 { public Map<String>, List<String> loadData() { Map data = new HashMap(); List d = new ArrayList(); d.add("value1"); d.add("value2"); data.put("Fact.field", d); return data; } }/ AFAIK, the jar of this class SampleDataSource2 will be uploaded to guvnor, so should I keep the connection details to database inside the same class ? If yes, 1. How will guvnor be able to directly connect to the database ? 2. Should I add the jars for database connectivity as well ? 3. Is keeping the connection details inside the jar, not a security threat ? I am not sure if I understand completely how this enumeration works, please feel free to guide me, if I am wrong somewhere. Regards, Abhinay -- View this message in context: http://drools.46999.n3.nabble.com/Using-Advanced-Enumeration-Concepts-in-... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

3
9
0 / 0

forall is satisfied when there is nothing?

by Sonata

Hi, I am using the "forall" keyword on the LHS and it seems the condition is satisfied when there is nothing to match. e.g. "forall (MyClass(value == "test"))" fires the rule when there is no MyClass() object in the working memory. My workaround is add "exists (MyClass())". Also, same for "not (exists (MyClass(value != "test")))", but I can understand this, as there is no MyClass() object, it doesn't exists and hence "not" gives true. But for "forall", it doesnt sound right to me. I wonder if "forall" is actually implemented as "not exists" in the engine. Please clarify if this is by design or a bug. Build is 5.5.0.Final Thank you -- View this message in context: http://drools.46999.n3.nabble.com/forall-is-satisfied-when-there-is-nothi... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

4
13
0 / 0

Drools conddition fails if I use HashMap to check objects

by Avin

Hi, I have a rule written which compare objects with objects present in HashMap and if object is found then clause gets executed. I am able to wite the conditions for comparing with HashMap but if I add any assign any value from the fact object before comparison then my conditions fail to evaluate and my then clause runs for all the objects Below is the code rule "rule 1" when //$factData: ConcentrationDataTable() this line makes rule fail TempStorage($mapObject : concPercentRefObjects) ConcentrationDataTable($concPercentage : concPercentage) $referenceData : ConcentrationDataTable($keyObject : concPercentRefkey) eval( $mapObject.get($keyObject) != null ) and eval($concPercentage > (((ConcPercentRef)$mapObject.get($keyObject)).getPercent())) then System.out.println("Rule 222 executed "+ " condition "+$factData + " reference value "+$mapObject.get($keyObject) ); //filteredDataList.add($factData); I require this object(fact object) to be stored in list for further process end *Results * Rule 222 executed condition 1424975 1424975 key value value 1424975 Rule 222 executed condition 14249751 14249751 key value 1424975 -- failed result should not have got printed -- View this message in context: http://drools.46999.n3.nabble.com/Drools-conddition-fails-if-I-use-HashMa... Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

1
0
0 / 0

Drools KB Object hierarchy Serilisation and Deserialisation thread safety issue

by adarsh.chaini＠hsbcib.com

Hi, We have found that some of the drools classes are not thread safe and hence causing the whole KB serialisation and deserialisation issues in a highly concurrent distributed cluster. The below is an example of one of the instances we have come across where the usage of a non thread safe collection as instance variables has caused the issue. Could someone look into this and advise: 1) If this has been reported /identified and logged somewhere as an issue already 2)If there has been any fix to problems like this in later versions of 5.3.0.Final ?. 3)If not fixed already what is the process to initiate a fix. Caused by: java.io.InvalidObjectException: Illegal mappings count: -1 at java.util.HashMap.readObject(HashMap.java:1130) at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke( DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeReadObject( ObjectStreamClass.java:1004) at java.io.ObjectInputStream.readSerialData( ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject( ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0( ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370 ) at org.jbpm.workflow.core.DroolsAction.readExternal( DroolsAction.java:61) at org.jbpm.workflow.core.impl.DroolsConsequenceAction.readExternal( DroolsConsequenceAction.java:49) at java.io.ObjectInputStream.readExternalData( ObjectInputStream.java:1835) at java.io.ObjectInputStream.readOrdinaryObject( ObjectInputStream.java:1794) at java.io.ObjectInputStream.readObject0( ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370 ) at org.drools.rule.JavaDialectRuntimeData.readExternal( JavaDialectRuntimeData.java:182) at java.io.ObjectInputStream.readExternalData( ObjectInputStream.java:1835) at java.io.ObjectInputStream.readOrdinaryObject( ObjectInputStream.java:1794) at java.io.ObjectInputStream.readObject0( ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370 ) at java.util.HashMap.readObject(HashMap.java:1155) at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke( DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeReadObject( ObjectStreamClass.java:1004) at java.io.ObjectInputStream.readSerialData( ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject( ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0( ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370 ) at org.drools.rule.DialectRuntimeRegistry.readExternal( DialectRuntimeRegistry.java:59) at java.io.ObjectInputStream.readExternalData( ObjectInputStream.java:1835) at java.io.ObjectInputStream.readOrdinaryObject( ObjectInputStream.java:1794) at java.io.ObjectInputStream.readObject0( ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370 ) at org.drools.rule.Package.readExternal(Package.java:197) at java.io.ObjectInputStream.readExternalData( ObjectInputStream.java:1835) at java.io.ObjectInputStream.readOrdinaryObject( ObjectInputStream.java:1794) at java.io.ObjectInputStream.readObject0( ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370 ) at java.util.HashMap.readObject(HashMap.java:1155) at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke( DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeReadObject( ObjectStreamClass.java:1004) at java.io.ObjectInputStream.readSerialData( ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject( ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0( ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370 ) at org.drools.common.AbstractRuleBase.readExternal( AbstractRuleBase.java:270) at org.drools.reteoo.ReteooRuleBase.readExternal( ReteooRuleBase.java:223) at org.drools.impl.KnowledgeBaseImpl.readExternal( KnowledgeBaseImpl.java:116) at java.io.ObjectInputStream.readExternalData( ObjectInputStream.java:1835) at java.io.ObjectInputStream.readOrdinaryObject( ObjectInputStream.java:1794) at java.io.ObjectInputStream.readObject0( ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370 ) at com.hsbc.gbm.dsl.domain.DSLRuleSet$Serializer.createInstance( DSLRuleSet.java:328) at com.hsbc.gbm.dsl.domain.DSLRuleSet$Serializer.createInstance( DSLRuleSet.java:1) at com.hsbc.gbm.dsl.domain.AbstractSerializer.deserialize( AbstractSerializer.java:144) Thanks and regards, Adarsh CHAINI SENIOR LEAD DEVELOPMENT SPECIALIST | HSBC Bank Plc 8 Canada Square, London E14 5HQ, UK _______________________________________________ Phone Int: (0)79914720 Ext: +44 (0)20 79914720 Mobile +44(0)7595530105 Email adarsh.chaini(a)hsbcib.com _______________________________________________ Protect our environment - please only print this if you have to! ************************************************************ HSBC Bank plc may be solicited in the course of its placement efforts for a new issue, by investment clients of the firm for whom the Bank as a firm already provides other services. It may equally decide to allocate to its own proprietary book or with an associate of HSBC Group. This represents a potential conflict of interest. HSBC Bank plc has internal arrangements designed to ensure that the firm would give unbiased and full advice to the corporate finance client about the valuation and pricing of the offering as well as internal systems, controls and procedures to identify and manage conflicts of interest. HSBC Bank plc Registered Office: 8 Canada Square, London E14 5HQ, United Kingdom Registered in England - Number 14259 Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority ************************************************************ ----------------------------------------- SAVE PAPER - THINK BEFORE YOU PRINT! This transmission has been issued by a member of the HSBC Group "HSBC" for the information of the addressee only and should not be reproduced and/or distributed to any other person. Each page attached hereto must be read in conjunction with any disclaimer which forms part of it. Unless otherwise stated, this transmission is neither an offer nor the solicitation of an offer to sell or purchase any investment. Its contents are based on information obtained from sources believed to be reliable but HSBC makes no representation and accepts no responsibility or liability as to its completeness or accuracy.

12 years, 1 month

3
6
0 / 0

is the When part java?

by wtang

the dialect I have set to "java". Now, I know this make the Then part java. How about the When part? Is the When part ever java when I set the dialect to "java". My understanding is that When part is never Java. I have a map of string and need to support the following operators: equal does not equal contains does not contain starts with end with matches Reg Ex I know for equal and does not equal I can do $map: Map( this["Message.label"] == "iPhone" || this["Message.label"] == "iPhone" ) how about other? thanks! -- View this message in context: http://drools.46999.n3.nabble.com/is-the-When-part-java-tp4027582.html Sent from the Drools: User forum mailing list archive at Nabble.com.

12 years, 1 month

2
1
0 / 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

rules-users January 2014