"NoClassDefFoundError: org/eclipse/core/runtime/Plugin" in fresh Drools IDE install
by eoliphan
Hi, I've created a new Drools dev setup with the latest version of the IDE
(problem exists in Helios also), but having an issue running projects. Have
stripped this down, and the problem exists even with a brand new project
created with the Drools wizard. When running even the base DroolsTest in a
default project I get the following error.
Any ideas?
---
java.lang.NoClassDefFoundError: org/eclipse/core/runtime/Plugin
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at
org.eclipse.jdt.internal.compiler.Compiler.initializeParser(Compiler.java:741)
at org.eclipse.jdt.internal.compiler.Compiler.<init>(Compiler.java:295)
at org.eclipse.jdt.internal.compiler.Compiler.<init>(Compiler.java:161)
at
org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:356)
at
org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCompiler.java:49)
at
org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java:368)
at
org.drools.compiler.DialectCompiletimeRegistry.compileAll(DialectCompiletimeRegistry.java:53)
at org.drools.compiler.PackageRegistry.compileAll(PackageRegistry.java:70)
at org.drools.compiler.PackageBuilder.compileAll(PackageBuilder.java:844)
at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:801)
at
org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:385)
at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:563)
at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:35)
at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:40)
at com.sample.DroolsTest.main(DroolsTest.java:23)
Caused by: java.lang.ClassNotFoundException: org.eclipse.core.runtime.Plugin
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 27 more
--
--
View this message in context: http://drools.46999.n3.nabble.com/NoClassDefFoundError-org-eclipse-core-r...
Sent from the Drools: User forum mailing list archive at Nabble.com.
13 years, 7 months
DRL Query and Guvnor
by Welsh, Armand
Any plans to integrate QUERY DRL into guvnor w/o breaking the global/imports view? (currently using 5.3)
13 years, 7 months
Creating a business process programatically, Jbpm5 tutorials for beginners
by Ahmed Feki
Hi,
i m a jbpm5 beginner and i m reading the Drools Developer's Cookbook
-[Packt Publishing, Jan 2012] and on its chapter 9 :"jBPM5: Managing
,Business Processes" there is a sample project for Creating a business
process manually (creating-process-using-the-api) in i which there is an
EventNode instanciation :
EventNode eventNode = new EventNode();
eventNode.setName("EventNode");
eventNode.setId(2);
eventNode.setScope("external");
EventTypeFilter eventFilter = new EventTypeFilter();
eventFilter.setType(eventType);
eventNode.addEventFilter(eventFilter);
i want to understand what the "eventNode.setScope("external");" means and
also about filters.
i googled for the jbpm-flow-builder API but didnt find any documentation.
i dont know where to find some tuorials for these stuffs..
thnx for help !
13 years, 7 months
drools 5.0's RuleFlow & drools 5.2's jbpm5
by bardelman
Hi,
i m planning to learn jbpm5 and i ve 2 books :
-Drools-JBoss-Rules-5.0-Developers-Guide :which is about the version 5.0 of
drools. in this book, there is a chapter about the Drools flow.
-The second book is the Drools Developper Cookbook(2012), here there is a
chapter about the jbpm5 in which it s said :<<jBPM5 is the new brand name of
the Drools process engine that was previously known as
Drools Flow.>>
As i want to optimize my learning curve for this framework(i mean for jbpm5)
i want to know if it is useful to read from the first book ? is it still
useful the Drools flow of the version 5.0 ? sorry for my bad english ..!!
--
View this message in context: http://drools.46999.n3.nabble.com/drools-5-0-s-RuleFlow-drools-5-2-s-jbpm...
Sent from the Drools: User forum mailing list archive at Nabble.com.
13 years, 7 months
Visualizing production rules metrics in 3D
by Jackson Cunha
Hi for all and sorry for any duplication.
My team are starting a project where we will develop a tool to visualize
metrics of a production rule base and show them in a 3D form.
Through this tool we want measure quality and conformity with good
practices to help in detection of anomalies and ensure a good design of a
knowledge base.
Other tools and studies already exists to visualize code and calculate
metrics from java code. Examples are CodeCity (
http://www.inf.usi.ch/phd/wettel/codecity.html<http://www.linkedin.com/redirect?url=http%3A%2F%2Fwww%2Einf%2Eusi%2Ech%2F...>),
where java code is visualized using a city metaphor and Sonar where metrics
are extracted from source code to help in code quality assurance (
http://nemo.sonarsource.org/dashboard/index/327690<http://www.linkedin.com/redirect?url=http%3A%2F%2Fnemo%2Esonarsource%2Eor...>
).
So, my questions is:
1 - How much relevant you think this idea is?
2 - You know about other research in this area?
Thanks in advance.
--
----------------------------------------------------------------------------------------------------------------
Jackson Cunha Cassimiro (CereB)
Bacharel em Ciencia da Computação - UFPI
MSN: jackson.cereb(a)gmail.com
Telefone Móvel +55 86 9928 1251
Analista de Sistemas - Infoway - http://www.infoway-pi.com.br
Missão Infoway - "Influenciar a Gestão de Sistemas de Saúde através de
e-health"
("A vida é um combate que os fracos abate, aos bravos, aos fortes só pode
exaltar" - Canção do Tamoio, Gonçalves Dias)
----------------------------------------------------------------------------------------------------------------
13 years, 7 months
Ws-Policy and drools rules
by FILIPPO AGAZZI
Hi,
i'm Filippo Agazzi, from University of Parma, and i'm working on a thesis
work, where i'm evaluating if Drools Expert(rule engine) can fit my needs.
I'm trying to use drools engine in web services environment.
My problem is that i have to translate in some way, Ws-Policy (xml format),
containing for example a request for client to send x509 element, received
in SOAP message, into drools rules, so i can use this policy as rules for
Drools engine. Drools engine is used to lead a negotation exchange of SOAP
message, containing ws-policy and credentials. Is there anyone that has an
idea of how can i do this translation at runtime? Or how can i insert into
drools engine, my policy element as rules? I can have also a java class
Policy to use, if it can help inserting ws-policy as rules into drools.
Thanks in advance.
Regards,
Filippo Agazzi
13 years, 7 months
Paid Community Support
by dollanitri
1. Is there any paid community support available for the Drools, to support
production systems for the troubleshooting in case of sever failures ?
2. If yes, then could anybody give me link or details to find out cost
details and other stuff related to support ?
3. It would be great if anybody can give or have an idea about how much
charge it will cost to take paid community support for the production
systems ?
--
View this message in context: http://drools.46999.n3.nabble.com/Paid-Community-Support-tp3968081.html
Sent from the Drools: User forum mailing list archive at Nabble.com.
13 years, 7 months
Updating a user defined error object using drools
by Ini
Hi All,
I am new to Drools and few thing what i am asking might not be
logically correct ( m sorry for that).
I have requirement as per that i have a bean with all the values
being populated and want to validate it and in case of any error update my
error (user defined) object with my own set of message and other details.
I searched the net for similar example but am not able to find some of the
below mentioned details. Please help me with following:
1. How to populate a user defined object in drl file and get the same object
in my java class.
2. What all different operation and methods are available in drools
(Couldn'dt find any concrete set: just tell me some urls)
3. I ma not able to find API for drools 5.3.0, please provide me the URL of
the same.
Thanks a lot in advance:
Ini
--
View this message in context: http://drools.46999.n3.nabble.com/Updating-a-user-defined-error-object-us...
Sent from the Drools: User forum mailing list archive at Nabble.com.
13 years, 7 months
getting list of broken constraints for some solution(NOT BEST SOLUTION) in drools-planner
by Nurlan
Hi guys!
I'm using drools-planner-*5.4.0.CR1*...
Let's say I have some solution(NOT FINAL BEST SOLUTION) which done by human
manually and I want get list of broken contraints for that solution, I've
tried
this.scoreDirector.setWorkingSolution(someSolution);
this.scoreDirector.calculateScore();
it returns *null* since it isn't connected with Solver
then I've tried using Solver with
<termination><maximumStepCount>0</maximumStepCount></termination>:
this.scoreDirector.setWorkingSolution(someSolution);
this.solver.setPlanningProblem(this.scoreDirector.getWorkingSolution());
this.solver.solve();
this.scoreDirector.setWorkingSolution(this.solver.getBestSolution());
this.scoreDirector.calculateScore();
then it shows *java.lang.UnsupportedOperationException* because there is no
best solution in Solver
java.lang.UnsupportedOperationException: StepCountTermination can only be
used for phase termination.
at
org.drools.planner.core.termination.StepCountTermination.isSolverTerminated(StepCountTermination.java:40)
at
org.drools.planner.core.termination.OrCompositeTermination.isSolverTerminated(OrCompositeTermination.java:42)
at
org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:181)
at
org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:151)
how can implement this task? or I have to implement setBestSolution in
Solver, i think this is bad idea...
--
View this message in context: http://drools.46999.n3.nabble.com/getting-list-of-broken-constraints-for-...
Sent from the Drools: User forum mailing list archive at Nabble.com.
13 years, 7 months
