Re: [rules-users] Fresh Guvnor Install throws ClassNotFoundException
Guvnor doesn't use OSGi. The stack trace suggests the JAR you are has a dependency on OSGi:- org.drools.guvnor.server.contenthandler.ModelContentHandler.getImportsFromJar. The remainder of the stack trace relates to trying to load the imported class. 2012/1/9 Mike Key mi...@zenbitz.com Hi all, I have installed Guvnor 5.3.0-Final on a fresh Tomcat 7.0.12. I am able to import existing rules I have, however when I try to upload my fact model I get an error in the localhost log file: SEVERE: Servlet.service() for servlet [AssetFileServlet] in context with path [/guvnor-5.3.0.Final-tomcat-6.0] threw exception [Servlet execution threw an exception] with root cause java.lang.ClassNotFoundException: org.osgi.framework.BundleActivator ...at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676) ...at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521) ...at java.lang.Class.forName0(Native Method) ...at java.lang.Class.forName(Class.java:247) ...at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:109) ...at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ...at java.lang.ClassLoader.defineClass1(Native Method) ...at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) ...at java.lang.ClassLoader.defineClass(ClassLoader.java:615) ...at org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader.java:86) ...at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:104) ...at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ...at org.drools.guvnor.server.contenthandler.ModelContentHandler.isClassVisible(ModelContentHandler.java:183) ...at org.drools.guvnor.server.contenthandler.ModelContentHandler.getImportsFromJar(ModelContentHandler.java:148) ...at org.drools.guvnor.server.contenthandler.ModelContentHandler.onAttachmentAdded(ModelContentHandler.java:66) ...at org.drools.guvnor.server.files.FileManagerUtils.attachFileToAsset(FileManagerUtils.java:115) ...at org.drools.guvnor.server.files.FileManagerUtils.attachFile(FileManagerUtils.java:87) ...at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ...at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) ...at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) ...at java.lang.reflect.Method.invoke(Method.java:597) ...at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) ...at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) ...at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) ...at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) ...at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) ...at org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterceptor.java:163) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) ...at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) ...at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185) ...at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103) I am attempting to upload a jar with all dependencies it uses (which includes JPA annotations and JAXB annotations). I have verified that the jar contains all its proper dependencies. This message seems to indicate I am missing some OSGi jar or something that I would have expected to be delivered with Guvnor. Do I need some sort of global libraries for OSGi to run Guvnor or to use my model when it has these external dependencies in the jar? Any help on this is greatly appreciated. Cheers. Mike Key ___ 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] Template Key in DSL
Hi Frank, thanks for your follow-up. As much as I like source code generators, I must confess that I've come to dislike the generation of many almost identical chunks, e.g., varying only in literals. This means that using templates without an if in the available macro language is a weak tool. Consequently, this triple layering isn't on my tops list. Basically, I agree with your assessment, the only caveat being the level of complexity and extend that is convenient to achieve with a DSL. Regards Wolfgang On 9 January 2012 17:08, FrankVhh frank.vanhoensho...@agserv.eu wrote: Hi, Sorry to have kept you waiting. If you use plain DRL, you have 1 source of information. If you use DSL, you add an extra source of information by inserting the data in it. Adding DSL on top of that, adds a third source of information in the form of a vocabulary. In theory, the more disperse your information, the more difficult it will be to maintain. Until now, I debugged all templates in the same way. Expand them all completely and have them outputted to a real DRL file. Than, debug the outputted file and make corrections in your template accordingly. Here, imho, there is not much difference in a DSLR template and a DRL template, provided that you have a stable DSL. This is not a debugging method that I particullary like, but it gets the job done. If you assess the difference between a DSLR and a DRL template, the only differentiator is the DSL. In that case it comes down to the question whether you have a stable DSL or not. If your DSL is mature, I would prefer DSLR over DRL for reasons of understandability to non-technical users. Unless your template is meant to be hidden from the user. Regards, Frank laune wrote OK, thanks for the confirmation. Do you have any comments w.r.t. to usability during development (debugging?!) and maintenance? The example is simple enough, but what's your feeling? -W On 6 January 2012 08:46, FrankVhh lt;frank.vanhoenshoven@gt; wrote: laune wrote What I suggested is a non-standard way of rule authoring, and I just think that it is possible - I've never tried it. This should work. I tried it once with Drools 5.0, so I assume it is still OK. http://drools.46999.n3.nabble.com/file/n3637269/voc.dsl voc.dsl http://drools.46999.n3.nabble.com/file/n3637269/Sample.dst Sample.dst http://drools.46999.n3.nabble.com/file/n3637269/DroolsTest.java DroolsTest.java -- View this message in context: http://drools.46999.n3.nabble.com/Template-Key-in-DSL-tp3634710p3637269.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users -- View this message in context: http://drools.46999.n3.nabble.com/Template-Key-in-DSL-tp3634710p3644953.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] Template Key in DSL
I still think, in my opinion, it is worthwhile adding the ability to define
Template Keys in DSL in Guvnor.
A simple (contrived and incomplete example) DSL might be:-
[when] There is an insurance policy quote=$p : PolicyQuote( )
[when] Number of previous claims on policy is between {min} and
{max}=ClaimHistory( quote == $p, numberOfClaims = {min}, numberOfClaims
{max} )
[then] Set insurance premium load factor to {loadFactor} =
$p.setLoadFactor( {loadFactor} );
A user might like to define rules using DSL for the following data set:-
0 = claims 1, load = 0
1 = claims 3, load = 10%
3 = claims 5, load = 15%
etc.
This can be accomplished with a Template or Decision Table using DRL terms
but as yet, in Guvnor, not DSL.
Obviously it can be achieved from a developers perspective using Drools
Expert as demonstrated.
With kind regards,
Mike
2012/1/10 Wolfgang Laun wolfgang.l...@gmail.com
Hi Frank,
thanks for your follow-up.
As much as I like source code generators, I must confess that I've come to
dislike the generation of many almost identical chunks, e.g., varying only
in literals.
This means that using templates without an if in the available macro
language is a weak tool. Consequently, this triple layering isn't on my
tops list.
Basically, I agree with your assessment, the only caveat being the level
of complexity and extend that is convenient to achieve with a DSL.
Regards
Wolfgang
On 9 January 2012 17:08, FrankVhh frank.vanhoensho...@agserv.eu wrote:
Hi,
Sorry to have kept you waiting.
If you use plain DRL, you have 1 source of information. If you use DSL,
you
add an extra source of information by inserting the data in it. Adding DSL
on top of that, adds a third source of information in the form of a
vocabulary.
In theory, the more disperse your information, the more difficult it will
be
to maintain.
Until now, I debugged all templates in the same way. Expand them all
completely and have them outputted to a real DRL file. Than, debug the
outputted file and make corrections in your template accordingly. Here,
imho, there is not much difference in a DSLR template and a DRL template,
provided that you have a stable DSL. This is not a debugging method that I
particullary like, but it gets the job done.
If you assess the difference between a DSLR and a DRL template, the only
differentiator is the DSL. In that case it comes down to the question
whether you have a stable DSL or not. If your DSL is mature, I would
prefer
DSLR over DRL for reasons of understandability to non-technical users.
Unless your template is meant to be hidden from the user.
Regards,
Frank
laune wrote
OK, thanks for the confirmation.
Do you have any comments w.r.t. to usability during development
(debugging?!) and maintenance? The example is simple enough, but what's
your feeling?
-W
On 6 January 2012 08:46, FrankVhh lt;frank.vanhoenshoven@gt; wrote:
laune wrote
What I suggested is a non-standard way of rule authoring, and I just
think
that it is possible - I've never tried it.
This should work. I tried it once with Drools 5.0, so I assume it is
still
OK.
http://drools.46999.n3.nabble.com/file/n3637269/voc.dsl voc.dsl
http://drools.46999.n3.nabble.com/file/n3637269/Sample.dst Sample.dst
http://drools.46999.n3.nabble.com/file/n3637269/DroolsTest.java
DroolsTest.java
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Re: [rules-users] Template Key in DSL
Hi, laune wrote As much as I like source code generators, I must confess that I've come to dislike the generation of many almost identical chunks, e.g., varying only in literals. Imho, that would be a case to put in a decision table. laune wrote This means that using templates without an if in the available macro language is a weak tool. Consequently, this triple layering isn't on my tops list. You are probably right with this. Templates should probably be considered as a tool that allows you to generate quite complex rules with only minor coding. Of course, the more coding the more rigid (and less agile) the solution will become. Actually, this will split your data in two separate layers, the original data and the transformed data and will burden you with the overhead of the transformation code. However, there might be a valuable trade-off in going for this approach. Regards, Frank laune wrote Hi Frank, thanks for your follow-up. As much as I like source code generators, I must confess that I've come to dislike the generation of many almost identical chunks, e.g., varying only in literals. This means that using templates without an if in the available macro language is a weak tool. Consequently, this triple layering isn't on my tops list. Basically, I agree with your assessment, the only caveat being the level of complexity and extend that is convenient to achieve with a DSL. Regards Wolfgang -- View this message in context: http://drools.46999.n3.nabble.com/Template-Key-in-DSL-tp3634710p3647236.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] Gwt Console in JBPM
Hi, I'm using JBPM5.1 installer,with JBOSS 5.1.0GA,Drools 5.3 I'm integrating Drools with JBPM.Before that,this is issue arised with JBPM5.I've dowloaded the source code for jbpm console in *https://github.com/bpmc/bpm-console*.I followed instructions and succesfuly made 2 war files gwt-console.war,gwt-console-server.war. But,When I'm deploying them in my JBOSS,it is generating exception and I'm unable to open the console.The server log is 2012-01-10 12:47:17,303 INFO [org.jboss.web.tomcat.service.deployers.TomcatDeployment] (main) deploy, ctxPath=/default-bpm-console 2012-01-10 12:47:18,156 ERROR [org.reflections.Reflections] (main) could not create Vfs.Dir from url. ignoring the exception and continuing org.reflections.ReflectionsException: could not create Dir using org.jboss.errai.bus.server.service.metadata.VFSUrlType from url vfszip:/D:/jbpm-installer/jboss-5.1.0.GA/server/default/deploy/gwt-console.war/WEB-INF/classes/.. When I'm opening http://localhost:8080/jbpm-console:It is generating 404 page not found error.Please suggest me how to achieve it.Even I posted in other forums,but couldnt able to get solution.Could you please suggest me -- View this message in context: http://drools.46999.n3.nabble.com/Gwt-Console-in-JBPM-tp3647313p3647313.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] MVEL curly braces position - bug or feature?
You can create the same effect using
while(...)
{}
or
do
{} while( ... );
or
for(;;)
{}
You can't do it with switch(){} because that's not accepted at all.
-W
2012/1/6 Edson Tirelli ed.tire...@gmail.com
Looks like a bug. MVEL does ; injection in order to make ; optional, so
my guess is that it is mistakenly injecting ; after your modify() call and
handling {} as a separate code block.
Edson
On Fri, Jan 6, 2012 at 11:51 AM, nickS nsand...@msxi-euro.com wrote:
Hi
I've been learning drools ands I saw that there is a Fibonacci example,
so I
thought I'd write my own using mvel as the dialect and then compare it to
the model solution.
However, I couldn't get mine working. It parsed but the behaviour was very
odd. It kept ignoring the modify block in my recurse rule and consequently
it went into an infinite loop. I compared it to the 'approved' solution
and
the two were pretty much the same, except that it worked and mine didn't.
After a lot of checking I noticed that I had started my curly brace on a
new
line after modify but the example had continued straight after the closing
brace of the modify.
Works //
modify ( f ){
value = 1
};
or
modify ( f ){value = 1 };
Doesn't Work //
modify ( f )
{
value = 1
};
Does anyone know if this is a bug or a feature?
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JBoss by Red Hat @ www.jboss.com
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[rules-users] Unable to execute BPMN2.0 process in Eclipse
Hi All, Now I appoached other way, I am using Drool-5.2.0 final, Guvnor 5.2.0 final and designer-2.0-jboss.war in Drools-Guvnor.In
Designer, I created simple process and copied into eclipse through Guvnor repository.
When I am trying executed this bpmn2.0 process in Eclipse, I got following exceptions:
java.lang.IllegalArgumentException: Unknown process ID: javaprocess
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1635)
at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
at com.simple.ProcessTest.main(ProcessTest.java:45)
I am also sending my code :
package com.simple;
import java.util.Iterator;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.agent.KnowledgeAgent;
import org.drools.agent.KnowledgeAgentFactory;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderError;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.definition.KnowledgePackage;
import org.drools.io.Resource;
import org.drools.io.ResourceFactory;
import org.drools.io.impl.ClassPathResource;
import org.drools.rule.FactType;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.process.ProcessInstance;
import org.hibernate.mapping.Collection;
public class ProcessTest {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try
{
KnowledgeBase kbase=readBase();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ksession.startProcess("javaprocess", null);
ksession.dispose();
}
catch(Throwable t)
{
t.printStackTrace();
}
}
private static KnowledgeBase readBase()
{
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(new ClassPathResource("Process2.bpmn"), ResourceType.BPMN2);
//kbuilder.add(new ClassPathResource("Validation.drl"), ResourceType.DRL);
if (kbuilder.hasErrors()){
for (KnowledgeBuilderError error : kbuilder.getErrors()) {
System.out.println(error);
}
throw new IllegalStateException("Error building kbase!");
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
return kbase;
}
}
I tried alot but not getting how to do this.
It will be really helpful if somebody could guide me.
Thanks and regards,Manohar KokkulaMailto: manohar.kokk...@tcs.com=-=-=Notice: The information contained in this e-mailmessage and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you
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Re: [rules-users] CPU Spike creating a StatefulKnowledgeSession using OSGi
I've seen similar issues and addressed it by overriding
ChainedProperties.getResources with a map to hold the enumeration once it is
found rather than constantly going back to the classloader-
MapString, Enumerationlt;URL resourceMap = new TreeMapString,
Enumerationlt;URL();
private EnumerationURL getResources(String name, ClassLoader
classLoader)
{
if (resourceMap.containsKey(name)) {
return resourceMap.get(name);
}
EnumerationURL enumeration = null;
try {
enumeration = classLoader.getResources(name);
} catch (IOException e) {
e.printStackTrace();
}
resourceMap.put(name, enumeration);
return enumeration;
}
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[rules-users] rule flow in BRMS
I tried to upload the rule flow(.rf) which i created in IDE inside BRMS. But its blank in the editor?? any advise will be helpful. thank you. -- View this message in context: http://drools.46999.n3.nabble.com/rule-flow-in-BRMS-tp3647810p3647810.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] Executing a subset of rules.
Hi folks,I'm curious on what would be best practice with regards configuring things so that only a subset of rules is evaluated in certain situations.I have a knowledge base that is designed to evaluate a whole variety of rules relating to whether a trade can be carried out. I would like to generate a 'report' of what banks I can trade with based on their current ratings. i.e. Based on rules like "Do not place funds in a counterparty (bank) below Moodys A2 rating." However there are numerous other rules such as "Do not place more than 20% of a fund in a single currency".To generate the report I was going to set up a batch of dummy trades for evaluation and 'ask' the rules engine whether I am allowed to trade. However, specifically for the purposes of this report I don't want to see failures caused by anything other than a counterparty ratings rule.I was thinking that one option would be to organise my packages so that I have an isolated 'counterparty ratings' package. That way I could load that specific set of rules into a counterparty ratings reporting session, and not others.Does that seem a reasonable way of doing things? Or are there better ways of doing this?Thanks in advance for any thoughts...SteveStephen Mastershttp://about.me/stephen-masters stephen.mast...@me.com___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Fresh Guvnor Install throws ClassNotFoundException
Thanks for the response Michael. I did get past the error by adding an OSGi jar to tomcat's libs. The curious thing is that I'm loading a jar from a maven build (actually an assembly with all dependencies added to the jar). The jar itself does not have this class, and if I do a mvn dependency:tree I never see OSGi mentioned in any dependencies or transitive dependencies of my entire source tree. At this point it may not be a question for this list, but I did try the same thing using JBoss AS 7 and the issue does not exist there. Does anyone happen to know if perhaps how guvnor is asking tomcat to load the classes may be what is requiring OSGi? Not sure how the tomcat 7 class loader works. Like I said I realize this is not really a Drools or Guvnor question at this point, but hopefully someone on the list may know? Thanks again for the response. Mike 2012/1/10 Michael Anstis michael.ans...@gmail.com Guvnor doesn't use OSGi. The stack trace suggests the JAR you are has a dependency on OSGi:- org.drools.guvnor.server.contenthandler.ModelContentHandler.getImportsFromJar. The remainder of the stack trace relates to trying to load the imported class. 2012/1/9 Mike Key mi...@zenbitz.com Hi all, I have installed Guvnor 5.3.0-Final on a fresh Tomcat 7.0.12. I am able to import existing rules I have, however when I try to upload my fact model I get an error in the localhost log file: SEVERE: Servlet.service() for servlet [AssetFileServlet] in context with path [/guvnor-5.3.0.Final-tomcat-6.0] threw exception [Servlet execution threw an exception] with root cause java.lang.ClassNotFoundException: org.osgi.framework.BundleActivator ...at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676) ...at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521) ...at java.lang.Class.forName0(Native Method) ...at java.lang.Class.forName(Class.java:247) ...at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:109) ...at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ...at java.lang.ClassLoader.defineClass1(Native Method) ...at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) ...at java.lang.ClassLoader.defineClass(ClassLoader.java:615) ...at org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader.java:86) ...at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:104) ...at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ...at org.drools.guvnor.server.contenthandler.ModelContentHandler.isClassVisible(ModelContentHandler.java:183) ...at org.drools.guvnor.server.contenthandler.ModelContentHandler.getImportsFromJar(ModelContentHandler.java:148) ...at org.drools.guvnor.server.contenthandler.ModelContentHandler.onAttachmentAdded(ModelContentHandler.java:66) ...at org.drools.guvnor.server.files.FileManagerUtils.attachFileToAsset(FileManagerUtils.java:115) ...at org.drools.guvnor.server.files.FileManagerUtils.attachFile(FileManagerUtils.java:87) ...at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ...at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) ...at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) ...at java.lang.reflect.Method.invoke(Method.java:597) ...at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) ...at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) ...at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) ...at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) ...at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) ...at org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterceptor.java:163) ...at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) ...at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) ...at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185) ...at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103) I am attempting to upload a jar with all dependencies it uses (which includes JPA annotations and JAXB annotations). I have verified that the jar contains all its proper dependencies. This message seems to indicate I am missing some OSGi jar or something that I would have expected to be delivered with Guvnor. Do I need some
Re: [rules-users] NullPointerException when load file rules
Anybody can help me? I don't know why my application show these errors. Thanks in advance! -- View this message in context: http://drools.46999.n3.nabble.com/NullPointerException-when-load-file-rules-tp3645021p3648159.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] NullPointerException when load file rules
Looking at the stack trace, if you are on the same version as drools as me it looks like it is this line this.rule.setDialect( getDialect().getId() ); The most likely reason is your DRL isn't valid - perhaps where you are specifying the dialect, or it could be your Dependencies aren't right or something. Which version of drools are you using. Have you tried reducing your DRL file to the minimum that generates the error - then post that DRL if you need further help. Thomas -Original Message- From: rules-users-boun...@lists.jboss.org [mailto:rules-users- boun...@lists.jboss.org] On Behalf Of jjmartinez Sent: 10 January 2012 17:05 To: rules-users@lists.jboss.org Subject: Re: [rules-users] NullPointerException when load file rules Anybody can help me? I don't know why my application show these errors. Thanks in advance! java.lang.NullPointerException at org.drools.rule.builder.RuleBuildContext.init(RuleBuildContext.java:88) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1149) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:636) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:266) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:458) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:85) at drools.ejemplos.DroolsTest.execute(DroolsTest.java:64) at drools.ejemplos.DroolsTest.init(DroolsTest.java:56) at drools.ejemplos.Activator.start(Activator.java:14) at org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) at org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] NullPointerException when load file rules
I'm using Drools 5.4.0 Beta 1 and my DRL is the Hello World of Drools :) (all my application is the Hello World of Drools, because I'm trying to do a OSGi bundle with this application). In my OSGi framework is running drools.core, drools.compiler and knowledge-api, and others bundles. Thanks for reply me. On Tue, Jan 10, 2012 at 6:15 PM, Swindells, Thomas tswinde...@nds.comwrote: Looking at the stack trace, if you are on the same version as drools as me it looks like it is this line this.rule.setDialect( getDialect().getId() ); The most likely reason is your DRL isn't valid - perhaps where you are specifying the dialect, or it could be your Dependencies aren't right or something. Which version of drools are you using. Have you tried reducing your DRL file to the minimum that generates the error - then post that DRL if you need further help. Thomas -Original Message- From: rules-users-boun...@lists.jboss.org [mailto:rules-users- boun...@lists.jboss.org] On Behalf Of jjmartinez Sent: 10 January 2012 17:05 To: rules-users@lists.jboss.org Subject: Re: [rules-users] NullPointerException when load file rules Anybody can help me? I don't know why my application show these errors. Thanks in advance! java.lang.NullPointerException at org.drools.rule.builder.RuleBuildContext.init(RuleBuildContext.java:88) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1149) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:636) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:266) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:458) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:85) at drools.ejemplos.DroolsTest.execute(DroolsTest.java:64) at drools.ejemplos.DroolsTest.init(DroolsTest.java:56) at drools.ejemplos.Activator.start(Activator.java:14) at org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) at org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ 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] NullPointerException when load file rules
Hi Mauricio, I'm going to test this. Thank you so much!! On Tue, Jan 10, 2012 at 6:35 PM, Mauricio Salatino sala...@gmail.comwrote: Oh.. I see what is happening here.. the Default dialects and session configurations are not being loaded by your OSGI environment :) It took me a while to find that out so I hope this comment helps you to save some valuable time. Solution: you need to add inside your project that is loading the rules the following file: META-INF/drools.packagebuilder.conf That contains the following content: drools.dialect.default = java drools.dialect.java = org.drools.rule.builder.dialect.java.JavaDialectConfiguration drools.dialect.java.compiler = ECLIPSE drools.dialect.mvel = org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration drools.dialect.mvel.strict = true drools.dialect.mvel.langLevel = 4 drools.accumulate.function.average = org.drools.base.accumulators.AverageAccumulateFunction drools.accumulate.function.max = org.drools.base.accumulators.MaxAccumulateFunction drools.accumulate.function.min = org.drools.base.accumulators.MinAccumulateFunction drools.accumulate.function.count = org.drools.base.accumulators.CountAccumulateFunction drools.accumulate.function.sum = org.drools.base.accumulators.SumAccumulateFunction drools.accumulate.function.collectList = org.drools.base.accumulators.CollectListAccumulateFunction drools.accumulate.function.collectSet = org.drools.base.accumulators.CollectSetAccumulateFunction drools.evaluator.coincides = org.drools.base.evaluators.CoincidesEvaluatorDefinition drools.evaluator.before = org.drools.base.evaluators.BeforeEvaluatorDefinition drools.evaluator.after = org.drools.base.evaluators.AfterEvaluatorDefinition drools.evaluator.meets = org.drools.base.evaluators.MeetsEvaluatorDefinition drools.evaluator.metby = org.drools.base.evaluators.MetByEvaluatorDefinition drools.evaluator.overlaps = org.drools.base.evaluators.OverlapsEvaluatorDefinition drools.evaluator.overlappedby = org.drools.base.evaluators.OverlappedByEvaluatorDefinition drools.evaluator.during = org.drools.base.evaluators.DuringEvaluatorDefinition drools.evaluator.includes = org.drools.base.evaluators.IncludesEvaluatorDefinition drools.evaluator.starts = org.drools.base.evaluators.StartsEvaluatorDefinition drools.evaluator.startedby = org.drools.base.evaluators.StartedByEvaluatorDefinition drools.evaluator.finishes = org.drools.base.evaluators.FinishesEvaluatorDefinition drools.evaluator.finishedby = org.drools.base.evaluators.FinishedByEvaluatorDefinition drools.evaluator.equality = org.drools.base.evaluators.EqualityEvaluatorsDefinition drools.evaluator.comparable = org.drools.base.evaluators.ComparableEvaluatorsDefinition drools.evaluator.set = org.drools.base.evaluators.SetEvaluatorsDefinition drools.evaluator.matches = org.drools.base.evaluators.MatchesEvaluatorsDefinition drools.evaluator.soundslike = org.drools.base.evaluators.SoundslikeEvaluatorsDefinition That is provided by drools-compiler.jar or drools-core.jar (I don't have the code here) but it's not being picked up by the OSGI container. Cheers 2012/1/10 elMateo soyelma...@gmail.com: I'm using Drools 5.4.0 Beta 1 and my DRL is the Hello World of Drools :) (all my application is the Hello World of Drools, because I'm trying to do a OSGi bundle with this application). In my OSGi framework is running drools.core, drools.compiler and knowledge-api, and others bundles. Thanks for reply me. On Tue, Jan 10, 2012 at 6:15 PM, Swindells, Thomas tswinde...@nds.com wrote: Looking at the stack trace, if you are on the same version as drools as me it looks like it is this line this.rule.setDialect( getDialect().getId() ); The most likely reason is your DRL isn't valid - perhaps where you are specifying the dialect, or it could be your Dependencies aren't right or something. Which version of drools are you using. Have you tried reducing your DRL file to the minimum that generates the error - then post that DRL if you need further help. Thomas -Original Message- From: rules-users-boun...@lists.jboss.org [mailto:rules-users- boun...@lists.jboss.org] On Behalf Of jjmartinez Sent: 10 January 2012 17:05 To: rules-users@lists.jboss.org Subject: Re: [rules-users] NullPointerException when load file rules Anybody can help me? I don't know why my application show these errors. Thanks in advance! java.lang.NullPointerException at org.drools.rule.builder.RuleBuildContext.init(RuleBuildContext.java:88) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1149) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:636) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:266) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:458)
Re: [rules-users] NullPointerException when load file rules
If it works we can prove that most of the OSGI containers works in the same way :) 2012/1/10 elMateo soyelma...@gmail.com: Hi Mauricio, I'm going to test this. Thank you so much!! On Tue, Jan 10, 2012 at 6:35 PM, Mauricio Salatino sala...@gmail.com wrote: Oh.. I see what is happening here.. the Default dialects and session configurations are not being loaded by your OSGI environment :) It took me a while to find that out so I hope this comment helps you to save some valuable time. Solution: you need to add inside your project that is loading the rules the following file: META-INF/drools.packagebuilder.conf That contains the following content: drools.dialect.default = java drools.dialect.java = org.drools.rule.builder.dialect.java.JavaDialectConfiguration drools.dialect.java.compiler = ECLIPSE drools.dialect.mvel = org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration drools.dialect.mvel.strict = true drools.dialect.mvel.langLevel = 4 drools.accumulate.function.average = org.drools.base.accumulators.AverageAccumulateFunction drools.accumulate.function.max = org.drools.base.accumulators.MaxAccumulateFunction drools.accumulate.function.min = org.drools.base.accumulators.MinAccumulateFunction drools.accumulate.function.count = org.drools.base.accumulators.CountAccumulateFunction drools.accumulate.function.sum = org.drools.base.accumulators.SumAccumulateFunction drools.accumulate.function.collectList = org.drools.base.accumulators.CollectListAccumulateFunction drools.accumulate.function.collectSet = org.drools.base.accumulators.CollectSetAccumulateFunction drools.evaluator.coincides = org.drools.base.evaluators.CoincidesEvaluatorDefinition drools.evaluator.before = org.drools.base.evaluators.BeforeEvaluatorDefinition drools.evaluator.after = org.drools.base.evaluators.AfterEvaluatorDefinition drools.evaluator.meets = org.drools.base.evaluators.MeetsEvaluatorDefinition drools.evaluator.metby = org.drools.base.evaluators.MetByEvaluatorDefinition drools.evaluator.overlaps = org.drools.base.evaluators.OverlapsEvaluatorDefinition drools.evaluator.overlappedby = org.drools.base.evaluators.OverlappedByEvaluatorDefinition drools.evaluator.during = org.drools.base.evaluators.DuringEvaluatorDefinition drools.evaluator.includes = org.drools.base.evaluators.IncludesEvaluatorDefinition drools.evaluator.starts = org.drools.base.evaluators.StartsEvaluatorDefinition drools.evaluator.startedby = org.drools.base.evaluators.StartedByEvaluatorDefinition drools.evaluator.finishes = org.drools.base.evaluators.FinishesEvaluatorDefinition drools.evaluator.finishedby = org.drools.base.evaluators.FinishedByEvaluatorDefinition drools.evaluator.equality = org.drools.base.evaluators.EqualityEvaluatorsDefinition drools.evaluator.comparable = org.drools.base.evaluators.ComparableEvaluatorsDefinition drools.evaluator.set = org.drools.base.evaluators.SetEvaluatorsDefinition drools.evaluator.matches = org.drools.base.evaluators.MatchesEvaluatorsDefinition drools.evaluator.soundslike = org.drools.base.evaluators.SoundslikeEvaluatorsDefinition That is provided by drools-compiler.jar or drools-core.jar (I don't have the code here) but it's not being picked up by the OSGI container. Cheers 2012/1/10 elMateo soyelma...@gmail.com: I'm using Drools 5.4.0 Beta 1 and my DRL is the Hello World of Drools :) (all my application is the Hello World of Drools, because I'm trying to do a OSGi bundle with this application). In my OSGi framework is running drools.core, drools.compiler and knowledge-api, and others bundles. Thanks for reply me. On Tue, Jan 10, 2012 at 6:15 PM, Swindells, Thomas tswinde...@nds.com wrote: Looking at the stack trace, if you are on the same version as drools as me it looks like it is this line this.rule.setDialect( getDialect().getId() ); The most likely reason is your DRL isn't valid - perhaps where you are specifying the dialect, or it could be your Dependencies aren't right or something. Which version of drools are you using. Have you tried reducing your DRL file to the minimum that generates the error - then post that DRL if you need further help. Thomas -Original Message- From: rules-users-boun...@lists.jboss.org [mailto:rules-users- boun...@lists.jboss.org] On Behalf Of jjmartinez Sent: 10 January 2012 17:05 To: rules-users@lists.jboss.org Subject: Re: [rules-users] NullPointerException when load file rules Anybody can help me? I don't know why my application show these errors. Thanks in advance! java.lang.NullPointerException at org.drools.rule.builder.RuleBuildContext.init(RuleBuildContext.java:88) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1149) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:636) at
Re: [rules-users] NullPointerException when load file rules
Now, this is the trace: (it's different to the other) org.drools.RuntimeDroolsException: Unable to load dialect ':mvel:null' [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:283) [stderr] at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:268) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:181) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:159) [stderr] at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:210) [stderr] at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:143) [stderr] at org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilder(KnowledgeBuilderFactoryServiceImpl.java:34) [stderr] at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:47) [stderr] at drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:94) [stderr] at drools.ejemplos.DroolsTest.execute(DroolsTest.java:68) [stderr] at drools.ejemplos.DroolsTest.init(DroolsTest.java:60) [stderr] at drools.ejemplos.Activator.start(Activator.java:14) [stderr] at org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) [stderr] at org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) [stderr] Caused by: java.lang.NullPointerException [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:278) [stderr] ... 13 more On Tue, Jan 10, 2012 at 6:46 PM, Mauricio Salatino sala...@gmail.comwrote: If it works we can prove that most of the OSGI containers works in the same way :) 2012/1/10 elMateo soyelma...@gmail.com: Hi Mauricio, I'm going to test this. Thank you so much!! On Tue, Jan 10, 2012 at 6:35 PM, Mauricio Salatino sala...@gmail.com wrote: Oh.. I see what is happening here.. the Default dialects and session configurations are not being loaded by your OSGI environment :) It took me a while to find that out so I hope this comment helps you to save some valuable time. Solution: you need to add inside your project that is loading the rules the following file: META-INF/drools.packagebuilder.conf That contains the following content: drools.dialect.default = java drools.dialect.java = org.drools.rule.builder.dialect.java.JavaDialectConfiguration drools.dialect.java.compiler = ECLIPSE drools.dialect.mvel = org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration drools.dialect.mvel.strict = true drools.dialect.mvel.langLevel = 4 drools.accumulate.function.average = org.drools.base.accumulators.AverageAccumulateFunction drools.accumulate.function.max = org.drools.base.accumulators.MaxAccumulateFunction drools.accumulate.function.min = org.drools.base.accumulators.MinAccumulateFunction drools.accumulate.function.count = org.drools.base.accumulators.CountAccumulateFunction drools.accumulate.function.sum = org.drools.base.accumulators.SumAccumulateFunction drools.accumulate.function.collectList = org.drools.base.accumulators.CollectListAccumulateFunction drools.accumulate.function.collectSet = org.drools.base.accumulators.CollectSetAccumulateFunction drools.evaluator.coincides = org.drools.base.evaluators.CoincidesEvaluatorDefinition drools.evaluator.before = org.drools.base.evaluators.BeforeEvaluatorDefinition drools.evaluator.after = org.drools.base.evaluators.AfterEvaluatorDefinition drools.evaluator.meets = org.drools.base.evaluators.MeetsEvaluatorDefinition drools.evaluator.metby = org.drools.base.evaluators.MetByEvaluatorDefinition drools.evaluator.overlaps = org.drools.base.evaluators.OverlapsEvaluatorDefinition drools.evaluator.overlappedby = org.drools.base.evaluators.OverlappedByEvaluatorDefinition drools.evaluator.during = org.drools.base.evaluators.DuringEvaluatorDefinition drools.evaluator.includes = org.drools.base.evaluators.IncludesEvaluatorDefinition drools.evaluator.starts = org.drools.base.evaluators.StartsEvaluatorDefinition drools.evaluator.startedby = org.drools.base.evaluators.StartedByEvaluatorDefinition drools.evaluator.finishes = org.drools.base.evaluators.FinishesEvaluatorDefinition drools.evaluator.finishedby = org.drools.base.evaluators.FinishedByEvaluatorDefinition drools.evaluator.equality = org.drools.base.evaluators.EqualityEvaluatorsDefinition drools.evaluator.comparable = org.drools.base.evaluators.ComparableEvaluatorsDefinition drools.evaluator.set = org.drools.base.evaluators.SetEvaluatorsDefinition drools.evaluator.matches = org.drools.base.evaluators.MatchesEvaluatorsDefinition drools.evaluator.soundslike = org.drools.base.evaluators.SoundslikeEvaluatorsDefinition That is provided by drools-compiler.jar or drools-core.jar (I don't have the code here) but it's not being picked
Re: [rules-users] NullPointerException when load file rules
Do you have the mvel2 bundle in your class path? Did you add the file that I mention inside the META-INF dir inside your app? Cheers. 2012/1/10 elMateo soyelma...@gmail.com: Now, this is the trace: (it's different to the other) org.drools.RuntimeDroolsException: Unable to load dialect ':mvel:null' [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:283) [stderr] at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:268) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:181) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:159) [stderr] at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:210) [stderr] at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:143) [stderr] at org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilder(KnowledgeBuilderFactoryServiceImpl.java:34) [stderr] at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:47) [stderr] at drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:94) [stderr] at drools.ejemplos.DroolsTest.execute(DroolsTest.java:68) [stderr] at drools.ejemplos.DroolsTest.init(DroolsTest.java:60) [stderr] at drools.ejemplos.Activator.start(Activator.java:14) [stderr] at org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) [stderr] at org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) [stderr] Caused by: java.lang.NullPointerException [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:278) [stderr] ... 13 more On Tue, Jan 10, 2012 at 6:46 PM, Mauricio Salatino sala...@gmail.com wrote: If it works we can prove that most of the OSGI containers works in the same way :) 2012/1/10 elMateo soyelma...@gmail.com: Hi Mauricio, I'm going to test this. Thank you so much!! On Tue, Jan 10, 2012 at 6:35 PM, Mauricio Salatino sala...@gmail.com wrote: Oh.. I see what is happening here.. the Default dialects and session configurations are not being loaded by your OSGI environment :) It took me a while to find that out so I hope this comment helps you to save some valuable time. Solution: you need to add inside your project that is loading the rules the following file: META-INF/drools.packagebuilder.conf That contains the following content: drools.dialect.default = java drools.dialect.java = org.drools.rule.builder.dialect.java.JavaDialectConfiguration drools.dialect.java.compiler = ECLIPSE drools.dialect.mvel = org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration drools.dialect.mvel.strict = true drools.dialect.mvel.langLevel = 4 drools.accumulate.function.average = org.drools.base.accumulators.AverageAccumulateFunction drools.accumulate.function.max = org.drools.base.accumulators.MaxAccumulateFunction drools.accumulate.function.min = org.drools.base.accumulators.MinAccumulateFunction drools.accumulate.function.count = org.drools.base.accumulators.CountAccumulateFunction drools.accumulate.function.sum = org.drools.base.accumulators.SumAccumulateFunction drools.accumulate.function.collectList = org.drools.base.accumulators.CollectListAccumulateFunction drools.accumulate.function.collectSet = org.drools.base.accumulators.CollectSetAccumulateFunction drools.evaluator.coincides = org.drools.base.evaluators.CoincidesEvaluatorDefinition drools.evaluator.before = org.drools.base.evaluators.BeforeEvaluatorDefinition drools.evaluator.after = org.drools.base.evaluators.AfterEvaluatorDefinition drools.evaluator.meets = org.drools.base.evaluators.MeetsEvaluatorDefinition drools.evaluator.metby = org.drools.base.evaluators.MetByEvaluatorDefinition drools.evaluator.overlaps = org.drools.base.evaluators.OverlapsEvaluatorDefinition drools.evaluator.overlappedby = org.drools.base.evaluators.OverlappedByEvaluatorDefinition drools.evaluator.during = org.drools.base.evaluators.DuringEvaluatorDefinition drools.evaluator.includes = org.drools.base.evaluators.IncludesEvaluatorDefinition drools.evaluator.starts = org.drools.base.evaluators.StartsEvaluatorDefinition drools.evaluator.startedby = org.drools.base.evaluators.StartedByEvaluatorDefinition drools.evaluator.finishes = org.drools.base.evaluators.FinishesEvaluatorDefinition drools.evaluator.finishedby = org.drools.base.evaluators.FinishedByEvaluatorDefinition drools.evaluator.equality = org.drools.base.evaluators.EqualityEvaluatorsDefinition drools.evaluator.comparable = org.drools.base.evaluators.ComparableEvaluatorsDefinition drools.evaluator.set = org.drools.base.evaluators.SetEvaluatorsDefinition drools.evaluator.matches = org.drools.base.evaluators.MatchesEvaluatorsDefinition
Re: [rules-users] NullPointerException when load file rules
Yes, mvel2 is a bundle in my framework and I add this file in META-INF. I find drools.packagebuilder.conf in droos-compiler, and I copy this to my META-INF dir. And it works!! Aleluya On Tue, Jan 10, 2012 at 6:50 PM, Mauricio Salatino sala...@gmail.comwrote: Do you have the mvel2 bundle in your class path? Did you add the file that I mention inside the META-INF dir inside your app? Cheers. 2012/1/10 elMateo soyelma...@gmail.com: Now, this is the trace: (it's different to the other) org.drools.RuntimeDroolsException: Unable to load dialect ':mvel:null' [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:283) [stderr] at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:268) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:181) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:159) [stderr] at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:210) [stderr] at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:143) [stderr] at org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilder(KnowledgeBuilderFactoryServiceImpl.java:34) [stderr] at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:47) [stderr] at drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:94) [stderr] at drools.ejemplos.DroolsTest.execute(DroolsTest.java:68) [stderr] at drools.ejemplos.DroolsTest.init(DroolsTest.java:60) [stderr] at drools.ejemplos.Activator.start(Activator.java:14) [stderr] at org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) [stderr] at org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) [stderr] Caused by: java.lang.NullPointerException [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:278) [stderr] ... 13 more On Tue, Jan 10, 2012 at 6:46 PM, Mauricio Salatino sala...@gmail.com wrote: If it works we can prove that most of the OSGI containers works in the same way :) 2012/1/10 elMateo soyelma...@gmail.com: Hi Mauricio, I'm going to test this. Thank you so much!! On Tue, Jan 10, 2012 at 6:35 PM, Mauricio Salatino sala...@gmail.com wrote: Oh.. I see what is happening here.. the Default dialects and session configurations are not being loaded by your OSGI environment :) It took me a while to find that out so I hope this comment helps you to save some valuable time. Solution: you need to add inside your project that is loading the rules the following file: META-INF/drools.packagebuilder.conf That contains the following content: drools.dialect.default = java drools.dialect.java = org.drools.rule.builder.dialect.java.JavaDialectConfiguration drools.dialect.java.compiler = ECLIPSE drools.dialect.mvel = org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration drools.dialect.mvel.strict = true drools.dialect.mvel.langLevel = 4 drools.accumulate.function.average = org.drools.base.accumulators.AverageAccumulateFunction drools.accumulate.function.max = org.drools.base.accumulators.MaxAccumulateFunction drools.accumulate.function.min = org.drools.base.accumulators.MinAccumulateFunction drools.accumulate.function.count = org.drools.base.accumulators.CountAccumulateFunction drools.accumulate.function.sum = org.drools.base.accumulators.SumAccumulateFunction drools.accumulate.function.collectList = org.drools.base.accumulators.CollectListAccumulateFunction drools.accumulate.function.collectSet = org.drools.base.accumulators.CollectSetAccumulateFunction drools.evaluator.coincides = org.drools.base.evaluators.CoincidesEvaluatorDefinition drools.evaluator.before = org.drools.base.evaluators.BeforeEvaluatorDefinition drools.evaluator.after = org.drools.base.evaluators.AfterEvaluatorDefinition drools.evaluator.meets = org.drools.base.evaluators.MeetsEvaluatorDefinition drools.evaluator.metby = org.drools.base.evaluators.MetByEvaluatorDefinition drools.evaluator.overlaps = org.drools.base.evaluators.OverlapsEvaluatorDefinition drools.evaluator.overlappedby = org.drools.base.evaluators.OverlappedByEvaluatorDefinition drools.evaluator.during = org.drools.base.evaluators.DuringEvaluatorDefinition drools.evaluator.includes = org.drools.base.evaluators.IncludesEvaluatorDefinition drools.evaluator.starts = org.drools.base.evaluators.StartsEvaluatorDefinition drools.evaluator.startedby = org.drools.base.evaluators.StartedByEvaluatorDefinition drools.evaluator.finishes = org.drools.base.evaluators.FinishesEvaluatorDefinition drools.evaluator.finishedby =
Re: [rules-users] NullPointerException when load file rules
:) It took me almost two days following bad leads.. We definitely need to improve how those configurations are loaded by default.. and if they are not there we should not have an NPE. Cheers 2012/1/10 elMateo soyelma...@gmail.com: Yes, mvel2 is a bundle in my framework and I add this file in META-INF. I find drools.packagebuilder.conf in droos-compiler, and I copy this to my META-INF dir. And it works!! Aleluya On Tue, Jan 10, 2012 at 6:50 PM, Mauricio Salatino sala...@gmail.com wrote: Do you have the mvel2 bundle in your class path? Did you add the file that I mention inside the META-INF dir inside your app? Cheers. 2012/1/10 elMateo soyelma...@gmail.com: Now, this is the trace: (it's different to the other) org.drools.RuntimeDroolsException: Unable to load dialect ':mvel:null' [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:283) [stderr] at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:268) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:181) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:159) [stderr] at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:210) [stderr] at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:143) [stderr] at org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilder(KnowledgeBuilderFactoryServiceImpl.java:34) [stderr] at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:47) [stderr] at drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:94) [stderr] at drools.ejemplos.DroolsTest.execute(DroolsTest.java:68) [stderr] at drools.ejemplos.DroolsTest.init(DroolsTest.java:60) [stderr] at drools.ejemplos.Activator.start(Activator.java:14) [stderr] at org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) [stderr] at org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) [stderr] Caused by: java.lang.NullPointerException [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:278) [stderr] ... 13 more On Tue, Jan 10, 2012 at 6:46 PM, Mauricio Salatino sala...@gmail.com wrote: If it works we can prove that most of the OSGI containers works in the same way :) 2012/1/10 elMateo soyelma...@gmail.com: Hi Mauricio, I'm going to test this. Thank you so much!! On Tue, Jan 10, 2012 at 6:35 PM, Mauricio Salatino sala...@gmail.com wrote: Oh.. I see what is happening here.. the Default dialects and session configurations are not being loaded by your OSGI environment :) It took me a while to find that out so I hope this comment helps you to save some valuable time. Solution: you need to add inside your project that is loading the rules the following file: META-INF/drools.packagebuilder.conf That contains the following content: drools.dialect.default = java drools.dialect.java = org.drools.rule.builder.dialect.java.JavaDialectConfiguration drools.dialect.java.compiler = ECLIPSE drools.dialect.mvel = org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration drools.dialect.mvel.strict = true drools.dialect.mvel.langLevel = 4 drools.accumulate.function.average = org.drools.base.accumulators.AverageAccumulateFunction drools.accumulate.function.max = org.drools.base.accumulators.MaxAccumulateFunction drools.accumulate.function.min = org.drools.base.accumulators.MinAccumulateFunction drools.accumulate.function.count = org.drools.base.accumulators.CountAccumulateFunction drools.accumulate.function.sum = org.drools.base.accumulators.SumAccumulateFunction drools.accumulate.function.collectList = org.drools.base.accumulators.CollectListAccumulateFunction drools.accumulate.function.collectSet = org.drools.base.accumulators.CollectSetAccumulateFunction drools.evaluator.coincides = org.drools.base.evaluators.CoincidesEvaluatorDefinition drools.evaluator.before = org.drools.base.evaluators.BeforeEvaluatorDefinition drools.evaluator.after = org.drools.base.evaluators.AfterEvaluatorDefinition drools.evaluator.meets = org.drools.base.evaluators.MeetsEvaluatorDefinition drools.evaluator.metby = org.drools.base.evaluators.MetByEvaluatorDefinition drools.evaluator.overlaps = org.drools.base.evaluators.OverlapsEvaluatorDefinition drools.evaluator.overlappedby = org.drools.base.evaluators.OverlappedByEvaluatorDefinition drools.evaluator.during = org.drools.base.evaluators.DuringEvaluatorDefinition drools.evaluator.includes = org.drools.base.evaluators.IncludesEvaluatorDefinition drools.evaluator.starts =
[rules-users] For loop inside a modify block problem
Hello, guys,
I have the following snippet of a right side rule:
modify ($gsc) {
doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
doSomethingElse($item.id);
}
}
which looks like is invalid syntax in some way, but it comes out with
strange error report, such as '[Error: no such identifier: $item]'
Would you please assist me on how to put that loop inside that modify block?
Thank you and regards,
Martin
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Re: [rules-users] For loop inside a modify block problem
You just need to do the loop outside the modify block and then just
update the object.
Cheers
2012/1/10 Martin A wml...@gmail.com:
Hello, guys,
I have the following snippet of a right side rule:
modify ($gsc) {
doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
doSomethingElse($item.id);
}
}
which looks like is invalid syntax in some way, but it comes out with
strange error report, such as '[Error: no such identifier: $item]'
Would you please assist me on how to put that loop inside that modify block?
Thank you and regards,
Martin
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- MyJourney @ http://salaboy.wordpress.com
- Co-Founder @ http://www.jugargentina.org
- Co-Founder @ http://www.jbug.com.ar
- Salatino Salaboy Mauricio -
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Re: [rules-users] For loop inside a modify block problem
No can do, because within a modify block a comma-separated list of (setter)
method calls of the object between the parentheses must be written.
Note that you can change a fact (without a modify statement) - just follow
this with an update call.
See the Expert manual for details.
-W
2012/1/10 Martin A wml...@gmail.com
Hello, guys,
I have the following snippet of a right side rule:
modify ($gsc) {
doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
doSomethingElse($item.id);
}
}
which looks like is invalid syntax in some way, but it comes out with
strange error report, such as '[Error: no such identifier: $item]'
Would you please assist me on how to put that loop inside that modify
block?
Thank you and regards,
Martin
___
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Re: [rules-users] For loop inside a modify block problem
Hello,
I suppose that means something like:
modify ($gsc) {
doSomething($item.id);
}
for (int i = 0; i $item.quantity; i++) {
$gsc.doSomethingElse($item.id);
}
update($gsc);
Thanks,
Martin
2012/1/10 Wolfgang Laun wolfgang.l...@gmail.com
No can do, because within a modify block a comma-separated list of
(setter) method calls of the object between the parentheses must be written.
Note that you can change a fact (without a modify statement) - just follow
this with an update call.
See the Expert manual for details.
-W
2012/1/10 Martin A wml...@gmail.com
Hello, guys,
I have the following snippet of a right side rule:
modify ($gsc) {
doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
doSomethingElse($item.id);
}
}
which looks like is invalid syntax in some way, but it comes out with
strange error report, such as '[Error: no such identifier: $item]'
Would you please assist me on how to put that loop inside that modify
block?
Thank you and regards,
Martin
___
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Re: [rules-users] For loop inside a modify block problem
yeah.. sort of..
you can do
$gsc.doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
$gsc.doSomethingElse($item.id);
}
update($gsc);
but by the way.. that loop is not doing anything ..
2012/1/10 Martin A wml...@gmail.com:
Hello,
I suppose that means something like:
modify ($gsc) {
doSomething($item.id);
}
for (int i = 0; i $item.quantity; i++) {
$gsc.doSomethingElse($item.id);
}
update($gsc);
Thanks,
Martin
2012/1/10 Wolfgang Laun wolfgang.l...@gmail.com
No can do, because within a modify block a comma-separated list of
(setter) method calls of the object between the parentheses must be written.
Note that you can change a fact (without a modify statement) - just follow
this with an update call.
See the Expert manual for details.
-W
2012/1/10 Martin A wml...@gmail.com
Hello, guys,
I have the following snippet of a right side rule:
modify ($gsc) {
doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
doSomethingElse($item.id);
}
}
which looks like is invalid syntax in some way, but it comes out with
strange error report, such as '[Error: no such identifier: $item]'
Would you please assist me on how to put that loop inside that modify
block?
Thank you and regards,
Martin
___
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- MyJourney @ http://salaboy.wordpress.com
- Co-Founder @ http://www.jugargentina.org
- Co-Founder @ http://www.jbug.com.ar
- Salatino Salaboy Mauricio -
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Re: [rules-users] For loop inside a modify block problem
Hi, Mauricio,
Thanks for the help.. but what do you mean by ' that loop is not doing
anything '
Regards,
Martin
On Tue, Jan 10, 2012 at 8:59 PM, Mauricio Salatino sala...@gmail.comwrote:
yeah.. sort of..
you can do
$gsc.doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
$gsc.doSomethingElse($item.id);
}
update($gsc);
but by the way.. that loop is not doing anything ..
2012/1/10 Martin A wml...@gmail.com:
Hello,
I suppose that means something like:
modify ($gsc) {
doSomething($item.id);
}
for (int i = 0; i $item.quantity; i++) {
$gsc.doSomethingElse($item.id);
}
update($gsc);
Thanks,
Martin
2012/1/10 Wolfgang Laun wolfgang.l...@gmail.com
No can do, because within a modify block a comma-separated list of
(setter) method calls of the object between the parentheses must be
written.
Note that you can change a fact (without a modify statement) - just
follow
this with an update call.
See the Expert manual for details.
-W
2012/1/10 Martin A wml...@gmail.com
Hello, guys,
I have the following snippet of a right side rule:
modify ($gsc) {
doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
doSomethingElse($item.id);
}
}
which looks like is invalid syntax in some way, but it comes out with
strange error report, such as '[Error: no such identifier: $item]'
Would you please assist me on how to put that loop inside that modify
block?
Thank you and regards,
Martin
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Re: [rules-users] For loop inside a modify block problem
Strangely, after making the changes, that 'for' loop makes the Drools
engine to come up with the same error (no such identifier).
I commented the loop and it does not throw that error.
Any ideas why this happens?
Thanks
On Tue, Jan 10, 2012 at 9:04 PM, Martin A wml...@gmail.com wrote:
Hi, Mauricio,
Thanks for the help.. but what do you mean by ' that loop is not doing
anything '
Regards,
Martin
On Tue, Jan 10, 2012 at 8:59 PM, Mauricio Salatino sala...@gmail.comwrote:
yeah.. sort of..
you can do
$gsc.doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
$gsc.doSomethingElse($item.id);
}
update($gsc);
but by the way.. that loop is not doing anything ..
2012/1/10 Martin A wml...@gmail.com:
Hello,
I suppose that means something like:
modify ($gsc) {
doSomething($item.id);
}
for (int i = 0; i $item.quantity; i++) {
$gsc.doSomethingElse($item.id);
}
update($gsc);
Thanks,
Martin
2012/1/10 Wolfgang Laun wolfgang.l...@gmail.com
No can do, because within a modify block a comma-separated list of
(setter) method calls of the object between the parentheses must be
written.
Note that you can change a fact (without a modify statement) - just
follow
this with an update call.
See the Expert manual for details.
-W
2012/1/10 Martin A wml...@gmail.com
Hello, guys,
I have the following snippet of a right side rule:
modify ($gsc) {
doSomething($item.id);
for (int i = 0; i $item.quantity; i++) {
doSomethingElse($item.id);
}
}
which looks like is invalid syntax in some way, but it comes out with
strange error report, such as '[Error: no such identifier: $item]'
Would you please assist me on how to put that loop inside that modify
block?
Thank you and regards,
Martin
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Re: [rules-users] Large number of rules in Drools
My rules are as follows. rule rule1 salience -2 dialect mvel when stud : Student ( field == ARTS, state.equals(WA)) then java.util.List subList = new java.util.ArrayList(); Subject subject = new Subject(); subject.setName(ABC); subject.setFees(33454); subject.duration(4); subList.add(subject); subject = new Subject(); subject.setName(XYZ); subject.setFees(33454); subject.duration(4); subList.add(subject); stud.setSubjects(subList); end rule rule2 salience -100 dialect mvel when stud : Student ( field == ARTS, state.equals(WA) , city == SEATTLE)) then java.util.List subList = new java.util.ArrayList(); Subject subject = new Subject(); subject.setName(ABC); subject.setFees(33454); subject.duration(4); subList.add(subject); subject = new Subject(); subject.setName(XYZ); subject.setFees(33454); subject.duration(4); subList.add(subject); stud.setSubjects(subList); end Student is the main object and it contains List of Subjects. here the way I am using the salience because if the input us shweta, ARTS, WA,Olympia it matched rule1 but if the input is shweta, ARTS, WA, Seattle it matches 1 and 2 but i want the rule 2 to be executed so salience. I am using StatelessKnowledge Session and also the resource change scanner. I execute one rule at a time and the scanner poll interval is 1 hour. When I started with 100 rules I was using PK as my source in changeSet.xml but when the rules grew to 20K I was not able to build the rules in Guvnor UI and hence I started using DRL as source. The way I generate drl is using a script which converts the csv to drl format. I copy the drl to the text area in techincal rules and save it. ( this copy is also paiful so I asked that if there is an upload drl file unlike the import drl file) In changeset I give the path to the url in webdav /guvnor/org.drools.guvnor.Guvnor/webdav/packages/StudentRules/StudentRules.drl I am not sure if I am doing it the right way. Please suggest. Thanks, Shweta On Mon, Jan 9, 2012 at 11:58 PM, laune [via Drools] ml-node+s46999n364701...@n3.nabble.com wrote: Salience is just one way to force the evaluation of a condition before others. In fact, using salience throughout is just a way of re-creating a sequence of plain old if statements using a rules engine. I'm not going to waste my time and yours by elaborating on possible alternatives unless you come up with a detailed description of your rules, and how you run your rules engine: fact insertion, calls to fire, etc. -W 2012/1/10 Shweta1986 [hidden email]http://user/SendEmail.jtp?type=nodenode=3647015i=0 I am not sure I understand that. What is the other option for this case. Why would simple rules not work for 20 K rules. Am I missing something. I cannot use database to store my rules. Drools also gives me salience which I need for my usecase. On Thu, Jan 5, 2012 at 11:29 PM, laune [via Drools] [hidden email]http://user/SendEmail.jtp?type=nodenode=3646449i=0 wrote: 2012/1/6 Shweta1986 [hidden email]http://user/SendEmail.jtp?type=nodenode=3637255i=0 And my rules are very simple it is like if string comparison then set that's it.. This doesn't really warrant the use of a rule based system. If keeping this logic out of the application or an easy maintenance of these if-then's are your main goals, there are other ways. I've already hinted at this, with the idea of providing the information embedded in similar rules as data. -W ___ rules-users mailing list [hidden email] http://user/SendEmail.jtp?type=nodenode=3637255i=1 https://lists.jboss.org/mailman/listinfo/rules-users -- If you reply to this email, your message will be added to the discussion below: http://drools.46999.n3.nabble.com/Large-number-of-rules-in-Drools-tp3630385p3637255.html To start a new topic under Drools: User forum, email [hidden email]http://user/SendEmail.jtp?type=nodenode=3646449i=1 To unsubscribe from Drools: User forum, click here. NAMLhttp://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=macro_viewerid=instant_html%21nabble%3Aemail.namlbase=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.InstantMailNamespacebreadcrumbs=instant+emails%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml -- View this message in context: Re: [rules-users] Large number of rules in Droolshttp://drools.46999.n3.nabble.com/Large-number-of-rules-in-Drools-tp3630385p3646449.html Sent from the Drools: User forum mailing list archivehttp://drools.46999.n3.nabble.com/Drools-User-forum-f47000.htmlat Nabble.com. ___ rules-users mailing list [hidden email]
Re: [rules-users] For loop inside a modify block problem
Did you remember to bind $item to some expression in the LHS ? Maybe you just called that item without the $ :) Davide (the original modify syntax is still wrong anyway) -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-For-loop-inside-a-modify-block-problem-tp3648460p3648718.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] Large number of rules in Drools
Assuming that the remaining 19998 rules are of the same kind, there is a lot of data in these rules, and only very little logic. Ignoring the issue of Olympia being one of the cities not being Seattle, we have the problem of matching a triplet of field,state,city from a Student fact so that we can store one or more Subjects in Student.subjects. Imagine that you have objects of type Inscribe containing a triplet of field, state, city and the pertaining ListSubject. Then you could write a single (!) rule rule register when $stu: Student ( $f: field, $s: state, $c: city ) $ins: Inscribe( field==$f, state==$s, city==$c ) then $stu.setSubjects( $ins.getSubjects() ); end BTW: Why do you use equals with state? Using == should be possible here, too. And, of course, matching ~2 different triplets to facts of a single type isn't really RBS fodder. You can design a simple Java program that achieves this goal, assuming you can come up with a straightforward representation of the field,state,city;subject+ mapping. -W 2012/1/10 Shweta1986 shweta.a.thak...@gmail.com My rules are as follows. rule rule1 salience -2 dialect mvel when stud : Student ( field == ARTS, state.equals(WA)) then java.util.List subList = new java.util.ArrayList(); Subject subject = new Subject(); subject.setName(ABC); subject.setFees(33454); subject.duration(4); subList.add(subject); subject = new Subject(); subject.setName(XYZ); subject.setFees(33454); subject.duration(4); subList.add(subject); stud.setSubjects(subList); end rule rule2 salience -100 dialect mvel when stud : Student ( field == ARTS, state.equals(WA) , city == SEATTLE)) then java.util.List subList = new java.util.ArrayList(); Subject subject = new Subject(); subject.setName(ABC); subject.setFees(33454); subject.duration(4); subList.add(subject); subject = new Subject(); subject.setName(XYZ); subject.setFees(33454); subject.duration(4); subList.add(subject); stud.setSubjects(subList); end Student is the main object and it contains List of Subjects. here the way I am using the salience because if the input us shweta, ARTS, WA,Olympia it matched rule1 but if the input is shweta, ARTS, WA, Seattle it matches 1 and 2 but i want the rule 2 to be executed so salience. I am using StatelessKnowledge Session and also the resource change scanner. I execute one rule at a time and the scanner poll interval is 1 hour. When I started with 100 rules I was using PK as my source in changeSet.xml but when the rules grew to 20K I was not able to build the rules in Guvnor UI and hence I started using DRL as source. The way I generate drl is using a script which converts the csv to drl format. I copy the drl to the text area in techincal rules and save it. ( this copy is also paiful so I asked that if there is an upload drl file unlike the import drl file) In changeset I give the path to the url in webdav /guvnor/org.drools.guvnor.Guvnor/webdav/packages/StudentRules/StudentRules.drl I am not sure if I am doing it the right way. Please suggest. Thanks, Shweta On Mon, Jan 9, 2012 at 11:58 PM, laune [via Drools] [hidden email]http://user/SendEmail.jtp?type=nodenode=3648661i=0 wrote: Salience is just one way to force the evaluation of a condition before others. In fact, using salience throughout is just a way of re-creating a sequence of plain old if statements using a rules engine. I'm not going to waste my time and yours by elaborating on possible alternatives unless you come up with a detailed description of your rules, and how you run your rules engine: fact insertion, calls to fire, etc. -W 2012/1/10 Shweta1986 [hidden email]http://user/SendEmail.jtp?type=nodenode=3647015i=0 I am not sure I understand that. What is the other option for this case. Why would simple rules not work for 20 K rules. Am I missing something. I cannot use database to store my rules. Drools also gives me salience which I need for my usecase. On Thu, Jan 5, 2012 at 11:29 PM, laune [via Drools] [hidden email]http://user/SendEmail.jtp?type=nodenode=3646449i=0 wrote: 2012/1/6 Shweta1986 [hidden email]http://user/SendEmail.jtp?type=nodenode=3637255i=0 And my rules are very simple it is like if string comparison then set that's it.. This doesn't really warrant the use of a rule based system. If keeping this logic out of the application or an easy maintenance of these if-then's are your main goals, there are other ways. I've already hinted at this, with the idea of providing the information embedded in similar rules as data. -W ___ rules-users mailing list [hidden email] http://user/SendEmail.jtp?type=nodenode=3637255i=1 https://lists.jboss.org/mailman/listinfo/rules-users -- If you reply to
Re: [rules-users] Large number of rules in Drools
I can look into the solution of writing my own Java application for this solution. But I would still like to understand, if the problem is just because of the 3 values being checked in the rules ? Do complex rules dont have more than 1 checks ? If yes then this case should be supported no matter how simple the rule is right ? Also for the UI issue I mentioned. Assume some other complex rules. Is copying the thousands of lines in the text area not a problem in guvnor ? On Tue, Jan 10, 2012 at 12:38 PM, laune [via Drools] ml-node+s46999n3648792...@n3.nabble.com wrote: Assuming that the remaining 19998 rules are of the same kind, there is a lot of data in these rules, and only very little logic. Ignoring the issue of Olympia being one of the cities not being Seattle, we have the problem of matching a triplet of field,state,city from a Student fact so that we can store one or more Subjects in Student.subjects. Imagine that you have objects of type Inscribe containing a triplet of field, state, city and the pertaining ListSubject. Then you could write a single (!) rule rule register when $stu: Student ( $f: field, $s: state, $c: city ) $ins: Inscribe( field==$f, state==$s, city==$c ) then $stu.setSubjects( $ins.getSubjects() ); end BTW: Why do you use equals with state? Using == should be possible here, too. And, of course, matching ~2 different triplets to facts of a single type isn't really RBS fodder. You can design a simple Java program that achieves this goal, assuming you can come up with a straightforward representation of the field,state,city;subject+ mapping. -W 2012/1/10 Shweta1986 [hidden email]http://user/SendEmail.jtp?type=nodenode=3648792i=0 My rules are as follows. rule rule1 salience -2 dialect mvel when stud : Student ( field == ARTS, state.equals(WA)) then java.util.List subList = new java.util.ArrayList(); Subject subject = new Subject(); subject.setName(ABC); subject.setFees(33454); subject.duration(4); subList.add(subject); subject = new Subject(); subject.setName(XYZ); subject.setFees(33454); subject.duration(4); subList.add(subject); stud.setSubjects(subList); end rule rule2 salience -100 dialect mvel when stud : Student ( field == ARTS, state.equals(WA) , city == SEATTLE)) then java.util.List subList = new java.util.ArrayList(); Subject subject = new Subject(); subject.setName(ABC); subject.setFees(33454); subject.duration(4); subList.add(subject); subject = new Subject(); subject.setName(XYZ); subject.setFees(33454); subject.duration(4); subList.add(subject); stud.setSubjects(subList); end Student is the main object and it contains List of Subjects. here the way I am using the salience because if the input us shweta, ARTS, WA,Olympia it matched rule1 but if the input is shweta, ARTS, WA, Seattle it matches 1 and 2 but i want the rule 2 to be executed so salience. I am using StatelessKnowledge Session and also the resource change scanner. I execute one rule at a time and the scanner poll interval is 1 hour. When I started with 100 rules I was using PK as my source in changeSet.xml but when the rules grew to 20K I was not able to build the rules in Guvnor UI and hence I started using DRL as source. The way I generate drl is using a script which converts the csv to drl format. I copy the drl to the text area in techincal rules and save it. ( this copy is also paiful so I asked that if there is an upload drl file unlike the import drl file) In changeset I give the path to the url in webdav /guvnor/org.drools.guvnor.Guvnor/webdav/packages/StudentRules/StudentRules.drl I am not sure if I am doing it the right way. Please suggest. Thanks, Shweta On Mon, Jan 9, 2012 at 11:58 PM, laune [via Drools] [hidden email]http://user/SendEmail.jtp?type=nodenode=3648661i=0 wrote: Salience is just one way to force the evaluation of a condition before others. In fact, using salience throughout is just a way of re-creating a sequence of plain old if statements using a rules engine. I'm not going to waste my time and yours by elaborating on possible alternatives unless you come up with a detailed description of your rules, and how you run your rules engine: fact insertion, calls to fire, etc. -W 2012/1/10 Shweta1986 [hidden email]http://user/SendEmail.jtp?type=nodenode=3647015i=0 I am not sure I understand that. What is the other option for this case. Why would simple rules not work for 20 K rules. Am I missing something. I cannot use database to store my rules. Drools also gives me salience which I need for my usecase. On Thu, Jan 5, 2012 at 11:29 PM, laune [via Drools] [hidden email]http://user/SendEmail.jtp?type=nodenode=3646449i=0 wrote: 2012/1/6 Shweta1986 [hidden email]http://user/SendEmail.jtp?type=nodenode=3637255i=0
[rules-users] No Such Field Error:DESCR in implementing ChangeSet
Hi,
I'm trying to implement CHANGESET.xml functinlaity through some example.Here
is my code
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
//kbuilder.add(ResourceFactory.newUrlResource(file:d:\\rulestest\\changeset.xml),
ResourceType.CHANGE_SET);
kbuilder.add(ResourceFactory.newUrlResource(
file:d:\\rulestest\\changeset.xml), ResourceType.CHANGE_SET
);
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (errors.size() 0) {
for (KnowledgeBuilderError error: errors) {
System.
err.println(error);
But It is generating exception as
java.lang.NoSuchFieldError: DESCR
at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:539)
at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28)
at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:42)
at com.sample.DroolsTest.main(DroolsTest.java:24)
Im using guvnor 5.2..Could you please suggest me
Thanks
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[rules-users] Unable to do Guvnor Authentiation with MySQL
Hi,
Has anybody encountered the similar problem, could someone please help me
on this.
TIA,
Sumeet
Mailto: sumeet.kara...@tcs.com
- Forwarded by Sumeet Karawal/MUM/TCS on 01/11/2012 05:16 PM -
From: Sumeet Karawal sumeet.kara...@tcs.com
To: rules-users@lists.jboss.org
Date: 01/09/2012 08:18 PM
Subject:[rules-users] Unable to do Guvnor Authentiation with MySQL
Sent by:rules-users-boun...@lists.jboss.org
Hi All,
I am trying to enable authentication in Guvnor using MySQL. I am using
MySQL 5.1, Guvnor 5.2 and JBoss AS 5.0.4
I searched over a lot of docs and tried to do as mentioned below :
I have created a GuvnorDB in MySQL with two tables
create table Principals(principal_id VARCHAR(64),password
VARCHAR
(64));
create table roles(principal_id VARCHAR(64),user_role VARCHAR
(64),role_group VARCHAR(64));
and have entered some values accordingly (admin, admin123) and (admin,
admin, admin);
My components.xml in drools-guvnor.war is as follows :
?xml version=1.0 encoding=UTF-8?
components xmlns=http://jboss.com/products/seam/components;
xmlns:core=http://jboss.com/products/seam/core;
xmlns:security=http://jboss.com/products/seam/security;
xmlns:web=http://jboss.com/products/seam/web;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xmlns:transaction=http://jboss.com/products/seam/transaction;
xsi:schemaLocation=http://jboss.com/products/seam/core
http://jboss.com/products/seam/core-2.0.xsd
http://jboss.com/products/seam/security
http://jboss.com/products/seam/security-2.0.xsd
http://jboss.com/products/seam/components
http://jboss.com/products/seam/components-2.0.xsd
http://jboss.com/products/seam/web
http://jboss.com/products/seam/web-2.0.xsd
http://jboss.com/products/seam/transaction
http://jboss.com/products/seam/transaction-2.0.xsd;
core:init transaction-management-enabled=false /
transaction:no-transaction /
component name=repositoryConfiguration
!-- JackRabbit --
property name=properties
keyorg.drools.repository.configurator/keyvalueorg.drools.repository.jackrabbit.JackrabbitRepositoryConfigurator/value
/property
/component
!-- SECURITY IDENTITY CONFIGURATION --
security:identity authenticate-method=#{authenticator.authenticate}
jaas-config-name=mysql/
!-- SECURITY AUTHORIZATION CONFIGURATION --
component name=org.jboss.seam.security.roleBasedPermissionResolver
property name=enableRoleBasedAuthorizationtrue/property
/component
/components
I have also changed my login-config.xml accordingly and added a
application policy :
application-policy name=mysql
authentication
login-module code=org.jboss.security.auth.spi.DatabaseServerLoginModule
flag=required
module-option name=dsJndiNamejava:/MySqlDS/module-option
module-option name=principalsQueryselect password from principals
where principal_id=?/module-option
module-option name=principalsQueryselect user_role,'Roles' from roles
where principal_id=?/module-option
/login-module
/authentication
/application-policy
I have also created a mysql-ds.xml and saved it in the default/deploy
folder; its contents :
?xml version=1.0 encoding=UTF-8?
datasources
local-tx-datasource
jndi-nameMySqlDS/jndi-name
connection-urljdbc:mysql://localhost:3306/GuvnorDB/connection-url
driver-classcom.mysql.jdbc.Driver/driver-class
user-nameroot/user-name
password/password
valid-connection-checker-class-nameorg.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker/valid-connection-checker-class-name
metadata
type-mappingmySQL/type-mapping
/metadata
Re: [rules-users] No Such Field Error:DESCR in implementing ChangeSet
I got succeeded..There is problem in Drools Jars of different versions. Thanks -- View this message in context: http://drools.46999.n3.nabble.com/No-Such-Field-Error-DESCR-in-implementing-ChangeSet-tp3649736p3649848.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
